JP3471637B2 - Parallel distributed simulation system, simulation manager, and parallel distributed simulator control method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a parallel distributed simulation system for executing a predetermined simulation while exchanging data with a plurality of simulators, and a simulation manager and a parallel distributed simulator control method for managing the parallel distributed simulation system. It is a thing.

[0002]

2. Description of the Related Art A conventional parallel and distributed simulation system is, for example, Modeling and Simu.
lation High Level Archite
cture-Federate Interface
Specification DRAFT1 (US DMS
O (Defense Modeling and Sim)
alation Office), April 20, 1998
HLA (High Level Arch)
There is a parallel distributed simulation system that uses HLA is a general-purpose (software) architecture for connecting multiple heterogeneous simulators and realizing integrated simulation.
The LA stipulates synchronization of the time progress in simulation between simulators, data exchange between simulators, and the like.

FIG. 42 is a block diagram showing an example of a parallel distributed simulation system constructed based on HLA. In the figure, 101 is a plurality of simulators 12.
1-1 to 121-4 are connected via a network or the like, and synchronization of time progress in simulation, data exchange, and the like between those simulators 121-1 to 121-4 is performed based on the logical time / data based on HLA. This is a conventional simulation manager executed by the exchange management means 6A. The logical time / data exchange management means 6
A is HLA RTI (RunTime Intras)
It has a function of "structure". 121-1 ~
Reference numeral 121-4 is a plurality of simulators that integrally execute one simulation. Each of these simulators 121-1 to 121-4 may be configured by a computer and connected to a network or the like, or may be provided in one computer.

Next, the operation will be described. The simulation manager 101 uses each simulator 121-i.
Various processes are executed in response to requests for time progress synchronization, data exchange, etc. from (i = 1, ..., 4). First,
When the synchronization of the time progress is received, the simulation manager 101 uses the logical time / data exchange management means 6A based on the HLA so that each simulator 121-
i is notified of permission of time advance at any time. At this time,
When the processing in one of the simulators 121-i is not completed and the time consistency in the simulation cannot be maintained, after the processing in that simulator 121-i is completed, each simulator 121-i
Is notified of the permission to advance the time.

On the other hand, each simulator 121-i executes a predetermined process for a predetermined time in the simulation, and when the process is completed, requests the simulation manager 101 for permission to advance the time, and the simulation manager 101 sends the time. When the progress permission is received, the processing for the next predetermined time is executed to advance the time in the simulation.

In this way, each simulator 121-
Between i, the simulation proceeds with the time consistency in the simulation being maintained.

Although the conventional parallel distributed simulation system operates as described above, when the interactive information processing system is constructed using the parallel distributed simulation system, the time progress in the simulation is changed to the actual time progress (real time progress). There is a case where a constraint condition that it is synchronized with the time progress) is imposed.

FIG. 43 is a block diagram showing an example of a parallel distributed simulation system to which the parallel distributed simulation system of FIG. 42 is applied and which advances the time in the simulation in synchronization with the advance of the time in real time. In the figure, reference numeral 122 is a timer simulator which incorporates a timer for measuring a real time and makes a request for the time progress to the simulation manager 101 in synchronization with the progress of the real time.

Next, the operation will be described. In the conventional parallel distributed simulation system, the simulation manager 101 includes simulators 121-1 to 12-12.
Even when the time advance request is received from 1-4, the process waits without issuing the time advance permission, and when the timer simulator 122 receives the time advance request in synchronization with the progress of the actual time, the simulator 121- Issue a time advance permission to 1-121-4.

In this way, the timer simulator 12
Based on the time progress request synchronized with the progress of the real time according to No. 2, the time progress in the simulation by the simulators 121-1 to 121-4 is not faster than the progress of the real time, and the simulation is performed in synchronization with the progress of the real time. I will proceed.

Even when data is exchanged between the simulators, each simulator 121-i issues a data exchange request to the simulation manager 101. There are some types of data exchange that are synchronized with time progress and some that are not synchronized. In the case of data exchange that is synchronized with time progress,
The time to perform the data exchange is added to the data exchange request. When the simulation manager 101 receives a data exchange request issued by each simulator 121-i, the simulation manager 101 is at the designated time if the request is for data exchange synchronized with the time progress, and is otherwise. , The simulator 121 specified by the request
-Supply the data to i at any time.

Other simulation systems include Japanese Patent Laid-Open Nos. 5-101015 and 7-16.
No. 0537, JP-A No. 9-16554, and the like.

[0013]

Since the conventional parallel distributed simulation system is configured as described above, when the constraint condition of synchronizing the time progress in the simulation with the actual time progress is imposed, the time in the simulation ( If the progress of the logical time is faster than the progress of the real time, the progress of the logical time can be synchronized with the progress of the real time, but for example, the load of the simulator is temporarily increased and the progress of the logical time is faster than the progress of the real time. When it was late, there was a problem that the progress of the logical time in the simulation could not catch up with the progress of the real time.

The present invention has been made to solve the above problems, and when the progress of the logical time is slower than the progress of the actual time, the logical time in the simulation is forcibly advanced to perform the simulation. It is an object of the present invention to obtain a parallel distributed simulation system, a simulation manager and a parallel distributed simulator control method capable of always synchronizing the logical time in the real time with the progress of the real time.

Further, according to the present invention, a message for data exchange (data exchange message), a communication path, and data exchanged are used for processing such as data exchange that is preferentially executed when logical time is forcibly advanced. Parallel distributed simulation system, which can be selected according to
The purpose is to obtain a simulation manager and a parallel distributed simulator control method.

Further, according to the present invention, when a plurality of simulators are divided and managed by a plurality of simulation managers and logical time is forcedly advanced,
A given simulation manager can instruct other simulation managers to proceed with the logical time so that the logical time is synchronized with the actual time even when executing a large-scale simulation using multiple simulation managers. The purpose is to obtain a parallel distributed simulation system, a simulation manager and a parallel distributed simulator control method capable of advancing the simulation in.

Further, according to the present invention, a predetermined event is input to a simulation in a predetermined simulator at a predetermined specified real time, so that verification of a real machine (real-time system) at a prototype stage can be easily executed. Distributed simulation system,
The purpose is to obtain a simulation manager and a parallel distributed simulator control method.

[0018]

A parallel distributed simulation system according to the present invention is a real time management means for measuring a real time and outputting it as real time data to a simulation manager, a real time data and a simulation logical time by a simulator. When the relationship between the real time data and the logical time by the constraint condition setting means and the real time management means for setting the constraint condition for the relation with the constraint condition does not satisfy the constraint condition, the logical time is forcibly set at the time satisfying the constraint condition. Time advance management means for instructing the simulator to advance the logical time after advancing or delaying, and message transmission for transmitting a message instructing the advance of the logical time and a data exchange message from each simulator to another simulator. It has a means.

In the parallel distributed simulation system according to the present invention, when the time progress management means forcibly advances the logical time, the data exchange message to be transmitted to the simulator is warned before the logical time forcibly advanced. The warning information adding means for adding information is provided in the simulation manager.

In the parallel distributed simulation system according to the present invention, instead of forcibly advancing the logical time of the simulator in which the relation between the real time data and the logical time by the real time management means does not satisfy the constraint condition, the other simulator is used. Simulator synchronization that is an asynchronous simulator that does not synchronize with the simulator, and that restores the asynchronous simulator to a simulator that synchronizes with other simulators when the relationship between the real-time data by the real-time management means and the logical time of the asynchronous simulator satisfies the constraint conditions. A simulation manager is provided with an asynchronous switching means.

In the parallel distributed simulation system according to the present invention, when the simulator in which the relation between the real time data by the real time management means and the logical time does not satisfy the constraint condition is an asynchronous simulator, when the simulator belongs to a predetermined group. , All simulators belonging to the group are asynchronous simulators, and when the relation between the real time data by the real time management means and the logical time of all simulators belonging to the group satisfies the constraint condition, The above simulator is restored from the asynchronous simulator to a simulator that synchronizes with other simulators.

In the parallel distributed simulation system according to the present invention, a priority is added to a message transmitted from each simulator to another simulator via the simulation manager, and when the logical time is forcibly advanced by the time progress management means. A first message having a highest priority among the messages to be transmitted before the forcibly advanced logical time is set, and only the messages higher than the message are set as the messages to be transmitted by the message transmitting means. The simulation manager is provided with a message priority selecting means.

In the parallel distributed simulation system according to the present invention, when the logical time is forcedly advanced by the time progress management means, the priority of the data exchange message exchanged between the simulators corresponding to the data is set. The priority of each data exchange message is determined from each data based on the above, and the data exchange message having the highest priority among the data exchange messages to be transmitted before the forcibly advanced logical time is searched, and the data exchange message is searched. The second message priority selecting means for setting only the higher-order data exchange message as the data exchange message transmitted by the message transmitting means is provided.

The parallel distributed simulation system according to the present invention corresponds to the communication path of the data exchange message exchanged between the simulators when the logical time is forcibly advanced by the time progress management means. The priority of each data exchange message is decided from the communication route of each data exchange message based on the priority set by And a third message priority selecting means for making only the data exchange message above the data exchange message the data exchange message transmitted by the message transmitting means.

In the parallel distributed simulation system according to the present invention, when the time progress management means forcibly advances the logical time, the priority added to the message by each simulator and the data exchange message exchanged between the simulators. Each data exchange based on the priority set corresponding to the data, the priority of each data exchange message derived from each data, and each data exchange based on the priority set corresponding to the communication path of the data exchange message Integrated priority calculating means for determining an integrated priority based on at least two priorities of the respective data exchange messages derived from the communication path of the message, and transmitting before the forcibly advanced logical time. Search for data exchange messages with the highest integration priority,
A message integration priority unit that sets only a data exchange message higher than the data exchange message as a data exchange message transmitted by the message transmitting unit is provided.

In the parallel distributed simulation system according to the present invention, when the relation between the real time data by the real time management means and the logical time of the predetermined simulator among the plurality of simulators does not satisfy the constraint condition, the predetermined simulator is satisfied. After the simulation up to the logical time is completed, the first time progress stopping means for controlling the time progress managing means to forcibly advance the logical time is provided.

In the parallel distributed simulation system according to the present invention, when the data of the data exchange message is the predetermined data when the relation between the real time data by the real time management means and the logical time does not satisfy the constraint condition, A second time advance / stop means for controlling the time advance management means to forcibly advance the logical time after executing the transmission of the data exchange message is provided.

In the parallel distributed simulation system according to the present invention, when the relationship between the real time data by the real time management means and the logical time does not satisfy the constraint condition, the communication path of the data exchange message is the predetermined communication path. After the transmission of the data exchange message, the third time advance / stop means for controlling the time advance management means to forcibly advance the logical time is provided.

In the parallel distributed simulation system according to the present invention, when the relation between the real time data by the real time management means and the logical time does not satisfy the constraint condition, whether the simulator that does not satisfy the constraint condition is the predetermined simulator or not. At least two of a predetermined condition, a condition of whether the data of the data exchange message is a predetermined condition, and a condition of whether the communication route of the data exchange message is a predetermined communication route. When the condition is satisfied, the integrated time advance / stop means for controlling the time advance management means to forcibly advance the logical time after the transmission of the data exchange message is executed is provided.

The parallel distributed simulation system according to the present invention comprises a real time progress control means for controlling the progress of the real time based on the real time data by multiplying the value of the real time data by the real time management means by a predetermined coefficient. Is.

The parallel distributed simulation system according to the present invention comprises a real time progress control means for controlling the progress of the real time based on the real time data by multiplying the value of the real time data by the real time management means by a predetermined coefficient. When the relation between the real time data and the logical time by the time management means does not satisfy the constraint condition, whether the simulator that does not satisfy the constraint condition is the predetermined simulator, and the data of the data exchange message is the predetermined one. Each data based on at least one condition of whether there is a condition and whether the communication route of the data exchange message is a predetermined communication route, and a predetermined coefficient for controlling the progress of the actual time. Stop determination means by progress speed for determining whether or not to transmit the exchange message, real time data and logical time by real time management means When the relationship does not satisfy the constraint condition, after the transmission of the data exchange message which is determined to be transmitted by the stop determination means for each traveling speed is executed, the time progress management means is controlled to forcibly advance the logical time. And a time advance / stop means.

The parallel distributed simulation system according to the present invention comprises an event input means for inputting a predetermined event into a simulation in a predetermined simulator at a predetermined specified real time.

In the parallel distributed simulation system according to the present invention, a plurality of simulation managers divides and manages a plurality of simulators, and when one predetermined simulation manager forcibly advances the logical time, it manages itself. In addition to instructing the simulator to forcibly advance the logical time, the other simulation managers are instructed to instruct the simulators managed by those simulation managers to forcibly advance the logical time.

In the parallel distributed simulation system according to the present invention, a plurality of simulation managers divides and manages a plurality of simulators, and when a predetermined simulation manager forcibly progresses the logical time, the real time data is transferred to another. The real time notification means for notifying the simulation manager and the real time correction means for correcting the real time data by the real time management means based on the real time data notified by another simulation manager are provided.

The simulation manager according to the present invention sets the constraint condition for the relation between the real time management means for measuring the real time and outputting the real time data, the real time data, and the logical time of the simulation by the simulator. When the relationship between the real time data and the logical time by the condition setting means and the real time management means does not satisfy the constraint condition, the simulator is forced to advance or delay the logical time at the time that satisfies the constraint condition, and then the simulator On the other hand, it comprises a time progress management means for instructing the progress of the logical time, and a message transmission means for transmitting a message instructing the progress of the logical time and a data exchange message from each simulator to another simulator.

In the parallel distributed simulator control method according to the present invention, the step of measuring real time and making it real time data, and the constraint condition for the relationship between the real time data and the logic time of the simulation by the simulator are measured. When the relationship between the time data and the logical time is not satisfied, the logical time is forcibly advanced or delayed to a time that satisfies the constraint condition, the step of instructing the simulator to advance the logical time, and the logical time And a data exchange message from each simulator to the other simulator.

[0037]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below. Embodiment 1. 1 is a block diagram showing a configuration example of a parallel distributed simulation system according to a first embodiment of the present invention. FIG. 2 is a diagram showing an example of constraint conditions by the real-time time condition setting means.

In FIG. 1, 1 is a plurality of simulators 4.
1-1 to 41-4 via a network or the like, and between those simulators 41-1 to 41-4,
It is a simulation manager that executes time synchronization, data exchange, etc. in the simulation.

In the simulation manager 1,
Reference numeral 2 is a real-time time condition setting means (constraint condition setting means) that outputs information on constraint conditions regarding the relationship between the logical time in the simulation and the real time data by the real time management means 3. In FIG. 2, time 0 to 10
When the logical time is periodically advanced by 0 milliseconds, the progress restriction condition that the logical time advance is not permitted when the interval of the logical time advance request is 95 milliseconds or less, and the logical time advance request A delay constraint condition is shown in which the logical time is forcibly advanced when the interval becomes 105 milliseconds or more.

Reference numeral 3 is a real time management means for measuring the real time and outputting it as real time data. Reference numeral 4 is for receiving the logic time from the logic time / data exchange management means 6 for the logic time and the real time management means 3. It is determined whether or not the relation with the real time data from the real time data satisfies the constraint condition from the real time time condition setting means 2, and according to the result of the determination, the progress of the logical time is permitted or the forced progress of the logical time is made. Logical time / instruction
A real-time time progress management means (time progress management means) for notifying the data exchange management means 6, and 5 executes exchange of messages between the simulators 41-1 to 41-4 and the logical time / data exchange management means 6. Communication means (message transmission means).

6 has an HLA RTI function,
Logical time / data exchange management means (time progress management means) for executing each process in response to a request for synchronization of time progress, data exchange, etc. from each simulator 41-i (i = 1, ..., 4) Is.

Further, 41-1 to 41-4 are a plurality of simulators for integrally executing one simulation. Each of the simulators 41-1 to 41-4 may be configured by a computer and connected to a network or the like, or may be provided in one computer.

Next, the operation will be described. FIG. 3 is a flowchart for explaining the process of determining whether or not the progress of the logical time is possible by the real-time time progress management means 4. FIG. 4 is a flowchart for explaining the process of determining whether or not the logical time can be forcibly advanced by the real-time time progress management means 4. FIG. 5 is a diagram showing a specific example of the process when the logical time is forcibly advanced. FIG. 6 is a diagram for explaining the operation of each simulator.

First, a data exchange message in which each simulator 41-i specifies a transmission time and a progress request message TAR of a logical time indicating a time progress that can be executed.
When the (Time advance Request) is issued to the simulation manager 1, the data exchange message and the logical time progress request message TAR are issued.
Is supplied to the logical time / data exchange management means 6 via the communication means 5.

Then, in step ST1 of FIG.
The standby logical time / data exchange management means 6 receives the data exchange message and the logical time progress request message TAR from each simulator 41-i, and sets the latest logical time at which data consistency in the entire simulation can be secured. After the calculation, when the logical time is allowed to progress for a predetermined time, the scheduled logical time is supplied to the real-time time progress management means 4 to request permission to advance the logical time. As data consistency, for example, when a transmission time is designated, it is necessary to transmit the data exchange message in the designated time order regardless of the order of requesting the transmission of the data exchange message.

Then, the real-time time progress management means 4
Is asked to permit the progress of the logical time, step S
At T2, the constraint condition is received from the real-time time condition setting means 2, at step ST3 the real-time data is received from the real-time management means 3, and at step ST4, the relation between the supplied logical time and the real-time data is real-time time condition. It is determined whether or not the constraint condition from the setting means 2 is satisfied, and whether or not the logical time can be advanced is determined.

At this time, if the constraint condition is as shown in FIG. 2, based on the progress constraint condition that the progress of the logical time is not permitted when the interval of the request to advance the logical time is 95 milliseconds or less. , Real-time time progress management means 4
Allows the progress of the logical time when the real time becomes larger than the progress-constrained time by using the time obtained by adding 95 milliseconds to the logical time at the previous progress as the progress-constrained time.

That is, the process waits until the real time becomes larger than the progress restricted time, and when the real time becomes larger than the progress restricted time, in step ST5, the real time time progress management means 4 permits the progress of the logical time, When the logical time / data exchange management means 6 receives the permission to advance the logical time, the time progress permission message TAG (Tim).
e Advance Grant) for each simulator 4
Issue to 1-i.

In this way, the simulation manager 1 controls so that the logical time does not advance faster than the actual time.

The real-time time progress management means 4
Performs the processing shown in FIG. 4 asynchronously with the above-described processing (FIG. 3) and monitors whether the progress of the logical time is in time with the progress of the real time.

First, the real-time time progress management means 4
Receives beforehand the constraint condition by the real-time time condition setting means 2 in step ST21.

Then, in step ST22, the real time time progress management means 4 receives the real time data from the real time management means 3 and reads the logic time from the logic time / data exchange management means 6. Next, in step ST23, the real-time time progress management means 4 determines whether or not the relationship between the logical time and the real-time data satisfies the constraint condition by the real-time time condition setting means 2, and in step ST24 the real time. It is determined whether the data value is larger than the logical time.

At this time, if the constraint condition is as shown in FIG. 2, it is based on the delay constraint condition that the logical time is forcibly advanced when the interval between the logical time advance requests is 105 milliseconds or more. And real-time time progress management means 4
Is the delay constraint time, which is the time obtained by adding 105 milliseconds to the logical time of the previous time, and in step ST23,
It is determined whether the value of the real time data is equal to or longer than the delay constraint time.

Here, the processes of steps ST22 to ST24 are repeated until the value of the real time data is equal to or longer than the delay constraint time and the value of the real time data becomes larger than the logical time, and the value of the real time data is delayed. When the time is equal to or more than the constraint time and the value of the real time data becomes larger than the logical time (that is, when the progress of the logical time cannot meet the progress of the real time), the real-time time progress management means 4 performs step ST25. At, the logical time / data exchange management means 6 is notified so as to forcibly advance the logical time.

When the logical time / data exchange management means 6 receives the notification, the forced time advance message TAGC (Time Advance) forcibly advances the logical time.
The eGrant with Cancel) is issued to the simulator 41-i which is the target of the forced time advance, and the data exchange message whose consistency cannot be ensured is discarded.

In this way, when the progress of the logical time is not in time for the progress of the real time, the logical time is forcedly advanced at any time.

Now, when the simulation manager 1 manages the simulators A, B, and C as shown in FIG. 5A, the processing of the simulator B is not completed and the forced logic from time 1 to time 10 is used. When the time progresses, the value of the attribute (data) i may be actually updated by the simulator B between the time 1 and the time 10, and the consistency of the value of the attribute i is ensured (guaranteed). 5), the messages [1] and [4] indicating that the value of the attribute i is changed are discarded.

On the other hand, each simulator 41-i operates as shown in the state transition diagram of FIG. That is, the simulation process is executed in the request issuing mode. When the progress request message TAR is issued, the mode proceeds to the time in progress mode. In the time-in-progress mode, the process waits until the time-advance permission message TAG is received, and when the time-advance permission message TAG is received, the mode is returned to the request issuing mode and the simulation proceeds. Then, in the request issuing mode and the time advancing mode, when the forced time advancing message TAGC is received, the process being executed is abandoned and the request issuing mode is entered.
The logical time advances until the time specified by the AGC.

When data is exchanged between the simulators 41-i, each simulator 41-i issues a data exchange request to the simulation manager 1. There are some types of data exchange that are synchronized with time progress and some that are not synchronized. In the case of data exchange that is synchronized with time progress,
The time to perform the data exchange is added to the data exchange request. When the simulation manager 1 receives a request for data exchange issued by each simulator 41-i, the simulation manager 1 receives the data exchange request synchronized with the time progress at the designated time, and otherwise. , The simulator 41-i specified by the request
The data will be supplied at any time.

As described above, according to the first embodiment, when the progress of the logical time is faster than the progress of the real time, the progress of the logical time is delayed and synchronized with the progress of the real time, and the progress of the logical time is advanced. Since the logical time in the simulation is forcibly advanced when is delayed from the progress of the real time, there is an effect that the progress of the logical time in the simulation can be always synchronized with the progress of the real time.

In the processing of the progress of the logical time (FIG. 3) described above, the constraint condition is received for each request for the progress of the logical time. However, the constraint condition is previously received only once and always used. But of course it is okay.

Embodiment 2. FIG. 7 is a diagram showing a first example of constraint conditions by the real-time time condition setting means in the parallel distributed simulation system according to the second embodiment. FIG. 8 is a diagram showing a second example of constraint conditions by the real-time time condition setting means in the parallel distributed simulation system according to the second exemplary embodiment. FIG. 9 is a diagram showing a third example of constraint conditions by the real-time time condition setting means in the parallel distributed simulation system according to the second embodiment.

In the parallel distributed simulation system according to the second embodiment, the constraint condition regarding the time progress provided by the real-time time condition setting means 2 of the simulation manager 1 is different from that according to the first embodiment (FIG. 2). Other components are the same as those in the first embodiment.
Since it is the same as the one described above, the description thereof will be omitted.

In FIG. 7, as a first example of the constraint condition, in addition to the constraint condition (ID is 1) shown in FIG. 2 in the first embodiment, 5 milliseconds after the occurrence of a predetermined event A. Constraint condition (ID
2 is set).

In FIG. 8, as a second example of the constraint condition, in addition to the constraint condition (having ID 1) shown in FIG. 2 in the first embodiment, a 5-millisecond cycle from the occurrence of a predetermined event A. The constraint condition (those with an ID of 2) that advances the logical time only 10 times is set.

In FIG. 9, as a third example of the constraint condition, 100 from time 0 until a predetermined event A occurs.
Constraint condition (ID is 1
And a constraint condition (ID is 2) that advances the logical time in a 200-millisecond cycle from the occurrence of the predetermined event A to the occurrence of the predetermined event B, and the predetermined condition from the occurrence of the predetermined event B. A constraint condition (ID of 3) is set to advance the logical time in a cycle of 100 milliseconds until the event A occurs. That is, the third constraint condition
In the example, the progress time of the logical time is 100 milliseconds, 200
It can be switched in the order of milliseconds and 100 milliseconds. The occurrence of events A and B is notified from each simulator 41-i to the real-time time progress management means 4 via the logical time / data exchange management means 6 of the simulation manager 1. Then, the constraint conditions are applied by the real-time time progress management means 4.

As described above, according to the second embodiment, in addition to the effects of the first embodiment, the progress unit of the logical time can be set in detail, and the simulation can be set in detail. The effect that it can be obtained.

The above-mentioned constraint conditions are not limited to those shown in FIG. 2, FIG. 7, FIG. 8 and FIG.
The number of executions (or periodic executions) of progress of the logical time, the start time or start event as a start trigger, the start time or start event as an end trigger, and the like can be appropriately set as necessary.

Third Embodiment FIG. 10 is a block diagram showing a configuration example of a parallel distributed simulation system according to the third embodiment of the present invention. The parallel distributed simulation system according to Embodiment 3 of the present invention is configured by connecting a plurality of parallel distributed simulation systems. Such a parallel distributed simulation system is used for executing a large-scale simulation that is difficult for a single parallel distributed simulation system to execute.

In the figure, 1A to 1F are simulation managers similar to the simulation manager 1 in the first embodiment. However, the simulation manager 1C includes a network-type real-time time progress management means 4A connected to a network (not shown) in place of the real-time time progress management means 4, and the simulation managers 1A, 1B, 1D to 1F have real-time time progress management. Instead of the management means 4, a network-type real-time time progress management means 4B connected to a network (not shown) is provided. In addition, the simulation manager 1 other than the simulation manager 1C
The real time management means 3 is not provided in A, 1B, 1D to 1F.

4A is a simulation manager 1A-
The simulation manager 1C, which is one of the 1F, monitors the progress of the real time in the same manner as the real-time time progress management means 4, and when the forced progress of the logical time occurs, a predetermined time is given via the network. The network real-time time progress management means (time progress management means) for issuing a forced time advance instruction message for instructing the forced progress of the logical time to the network real-time time progress management means 4B provided in the simulation manager 1D. is there.

4B is a simulation manager 1A, 1 other than the simulation manager 1C provided with the network type real-time time progress management means 4A.
B, 1D to 1F are provided, and when the forced time progress instruction message is received from the upper network real-time time progress management means 4A, 4B, the forced time advance instruction message is transferred to the lower network real-time time progress management means 4B. At the same time, it is a network-type real-time time progress management means (time progress management means) for executing the forced progress of the logical time for the simulators 41-1 to 41-3 connected to the simulation managers 1A, 1B, 1D to 1F. .

The network-type real-time time progress management means 4A, 4B hierarchically exchange the forced time advance instruction message. In FIG. 10, the network-type real-time time progress management unit 4A of the simulation manager 1C is located at the top, the network-type real-time time progress management unit 4B of the simulation manager 1D is located below it, and the simulation manager 1A is further below it. , 1B and 1F, the network real-time time progress management means 4B is located, and the network real-time progress management means 4B of the simulation manager 1E is located below the network real-time time progress management means 4B of the simulation manager 1F.

Next, the operation will be described. When the logical time / data exchange management means 6 requests permission to advance the logical time, the network real-time time progress management means 4B transfers the request to the network real-time time progress management means 4A. Then, the network real-time time progress management means 4A
Alternatively, based on a request from the logical time / data exchange management means 6 of the simulation manager 1C to permit the progress of the logical time, the simulation managers 1A to 1A, 1A to 1 are used as in the real time time progress management means 4 of the first embodiment.
All simulators 41-1 to 41- connected to F
3 controls the progress of the logical time, and sends a message of an instruction regarding the progress of the logical time to the real-time time progress management means 4B.
To the logical time / data exchange management means 6 of the simulation manager 1C, and notifies the progress of the logical time.

Further, the process of forcibly advancing the logical time is executed asynchronously with the advance of the logical time according to the advance of the real time. In FIG. 10, when the network-type real-time time progress management means 4A of the simulation manager 1C determines to forcibly advance the logical time in the same manner as the real-time time progress management means 4 of the first embodiment, first, the simulation manager. Of the simulators 41-1 to 41-3 connected to 1C, the logical time / data exchange management means 6 issues the forced time progress message TAGC to the simulator 41-i, which is the target of the forced time advance, and also the network. A forced time advance instruction message is issued to the lower network real-time time progress management means 4B via.

Then, the simulation manager 1D
Network type real-time time progress management means 4B
Is a network-type real-time time progress management means 4A
When the forced time advance instruction message from is received, the forced time advance instruction message is transferred to the simulation managers 1A, 1B and 1F.

The network type real-time time progress management means 4B of the simulation managers 1A and 1B is
When the forced time advance instruction message from the simulation manager 1D is received, the forced time advance message TAGC for forcibly advancing the logical time at the time designated by the message is sent to the simulation manager 1D.
Simulators 41-1 to 41-3 connected to A and 1B
41-
i is issued by the logical time / data exchange management means 6, respectively.

The network type real-time time progress management means 4B of the simulation manager 1F is
When the forced time advance instruction message is received from the simulation manager 1D, the forced time advance instruction message is transferred to the simulation manager 1E. When the network-type real-time time progress management means 4B of the simulation manager 1E receives the forced time advance instruction message from the simulation manager 1F, the forced time advance message TAGC forcibly advances the logical time at the time included in the message. To
Of the simulators 41-1 to 41-3 connected to the simulation manager 1E, the logical time /
It is issued by the data exchange management means 6.

In this way, when the logical time is forcibly advanced, a forced time advance instruction message is sent from the network real-time time advance management means 4A via the network (not shown) to all the network real-time time advance management. The logical time is transmitted to the means 4B and the logical time in the target simulator 41-i of all the simulators 41-1 to 41-3 connected to the simulation managers 1A to 1E is forcibly advanced.

As described above, according to the third embodiment, when the logical time is forcibly advanced when a plurality of simulators are divided and managed by a plurality of simulation managers, a predetermined simulation manager is not required to operate the other simulators. Since the simulation manager is instructed to forcibly advance the logical time, it is possible to advance the simulation at the logical time synchronized with the real time even when executing a large-scale simulation using multiple simulation managers. The effect of being able to do is obtained.

Although six simulation managers 1A to 1F are hierarchically used in the third embodiment, the number of simulation managers is six.
However, the hierarchical structure of the simulation manager is not limited to that described above (FIG. 10). Further, the connection form of the simulation managers 1A to 1F is not limited to the hierarchical structure, and may be another form as long as the information and messages necessary for controlling the logical time can be exchanged.

Further, the real time management means 3 is provided in all the simulation managers 1A to 1F, and not only the simulation manager 1C, but also any one of the simulation managers controls the progress of the logical time. Good.

Furthermore, each simulation manager 1
It is also possible to individually and forcibly judge the progress of the logical time based on the constraint conditions by the real-time time condition setting means 2 in A to 1F.

Furthermore, the simulators 41-1 to 41-3
When is connected to another simulation manager, the other simulation manager may be requested to issue the compulsory time progress message TAGC.

Fourth Embodiment FIG. 11 is a block diagram showing a configuration example of a parallel distributed simulation system according to Embodiment 4 of the present invention. In the figure, when the notification 8 forcibly advances the logical time from the real-time time progress management means 4, the logical time / data exchange management means 6 ensures the consistency in the forcible progress of the logical time. It is a warning information adding unit that adds a warning message to a data exchange message that cannot be sent. The logical time / data exchange management means 6 does not discard the data exchange message whose consistency cannot be ensured, but sends the message with the warning message added. The other components of FIG. 11 are the same as those according to the first embodiment, and the description thereof will be omitted.

Next, the operation will be described. FIG. 12 is a flowchart for explaining a process of determining whether or not the logical time can be forcibly advanced by the real-time time progress management means 4.

Similar to the first embodiment, the process shown in FIG. 3 is executed, and the simulation manager 1 controls so that the logical time does not advance faster than the actual time. Asynchronously with the processing (FIG. 3), the real-time time progress management means 4 executes the processing shown in FIG. 12, and whether the relation between the real time and the logical time satisfies the constraint condition by the real-time time condition setting means 2. Monitor the logical time based on whether or not.

First, the real-time time progress management means 4
Receives in advance the constraint condition by the real-time time condition setting means 2 in step ST41.

Then, in step ST42, the real time time progress management means 4 receives the real time data from the real time management means 3 and reads the logic time from the logic time / data exchange management means 6. Next, in step ST43, the real-time time progress management means 4 determines whether or not the relationship between the logical time and the real time data satisfies the constraint condition by the real-time time condition setting means 2, and in step ST44, It is determined whether the value of the time data is larger than the logical time.

Here, the processes of steps ST42 to ST44 are repeated until the value of the real time data is equal to or longer than the delay constraint time and the value of the real time data becomes larger than the logical time, and the value of the real time data is delayed. When the time is equal to or more than the constraint time and the value of the real time data becomes larger than the logical time (that is, when the progress of the logical time does not meet the progress of the real time), the real-time time progress management means 4 determines the logical time. Logical time to force
The data exchange management means 6 and the warning information addition means 8 are notified.

At step ST45, when the warning information adding means 8 receives the notification from the real-time time progress management means 4 that the logical time is forcibly advanced, the logical time / data exchange management means 6 forces the warning. A warning message is added to the data exchange message whose consistency cannot be ensured as the logical time progresses. Then, the logical time / data exchange management means 6 issues the compulsory time progress message TAGC forcibly advancing the logical time to the simulator 41-i which is the target of the forced time progress, and the data whose consistency cannot be ensured. Instead of discarding the exchange message, the warning message is sent to each simulator 41-i after being added. For example, in the case of FIG. 5, the messages [1] and [4] shown in FIG.
After the warning message is added, each simulator 41-
sent to i.

In this way, when the progress of the logical time cannot meet the progress of the real time, the logical time is forcibly advanced at any time, and the data exchange message whose consistency cannot be ensured is added after the warning message is added. It is sent to the simulator 41-i which is the target of forced time advancement.

When each simulator 41-i receives a data exchange message with a warning message, the simulator 41-i checks the data type of the data exchange message, and the simulation accuracy is improved by using the data exchange message. If so, the simulation is advanced using the data exchanged by the data exchange message. For example, in the simulation, when the data supplied by the data exchange message is a continuous quantity and the differential value of that value is calculated, the data exchange message with the warning message should be used. However, the differential value is calculated accurately.

As described above, according to the fourth embodiment, when the logical time is forcibly advanced, a data exchange message whose consistency cannot be ensured is added to each simulator 41-i after adding a warning message. Since the data is sent and the data can be used by each simulator 41-i as needed, the loss of data due to the forced progress of the logical time is reduced and the simulation can be executed more accurately. The effect of being able to be obtained is obtained.

Embodiment 5. FIG. 13 is a block diagram showing a configuration example of a parallel distributed simulation system according to the fifth embodiment of the present invention. In this parallel distributed simulation system, a simulator that synchronizes logical times with each other and a simulator that advances logical times asynchronously with the logical times of other simulators can coexist.

In the figure, reference numeral 9 is a built-in simulator synchronous / asynchronous switching table. When the relationship between the logical time and the real time data does not satisfy the constraint condition, the simulator synchronous / asynchronous switching table is used to The simulator synchronous / asynchronous switching means for determining whether to forcibly advance the logical time of (1) or to make the logical time of the simulator asynchronous with the logical time of another simulator. The other components in FIG. 13 are the same as those in the first embodiment, and therefore the description thereof will be omitted.

Next, the operation will be described. FIG. 14 is a flowchart illustrating processing when the relationship between logical time and real time data does not satisfy the constraint condition. Figure 1
Reference numeral 5 is a flow chart for explaining a process of monitoring the simulator that has moved asynchronously. FIG. 16 is a diagram showing an example of a list of simulators that synchronize logical times with each other, and FIG. 17 is a diagram showing an example of a simulator synchronous / asynchronous switching table showing the synchronous / asynchronous state of each simulator and the availability of state transition. FIG. 18 is a diagram for explaining the processing when shifting the state of the simulator to the asynchronous state. 19 is a diagram showing another example of a list of simulators that synchronize logical times with each other, FIG. 20 is a diagram showing another example of a simulator synchronization / asynchronous switching table, and FIG. 21 is a monitor of simulators in an asynchronous state. FIG. 22 is a diagram illustrating a process when the state of the simulator is shifted to the synchronous state.

Similar to the first embodiment, the processing shown in FIG. 3 is executed, and the simulation manager 1 controls so that the logical time does not advance faster than the actual time. Asynchronously with the processing (FIG. 3), the real-time time progress management means 4 executes the processing shown in FIGS. 14 and 15, and the relationship between the real time and the logical time is restricted by the real-time time condition setting means 2. Monitor the logical time based on satisfaction.

Here, the simulators 41-1 to 41-1 shown in FIG.
The state of 41-4 is a state where the simulators 41-1 to 41-3 synchronize their logical times with each other (that is,
In the simulator 41-4, the logic time is not synchronized with the other simulators 41-1 to 41-3 (that is, the simulator 41-4 is in an asynchronous state).

First, the real-time time progress management means 4
Receives in advance the constraint condition by the real-time time condition setting means 2 in step ST61.

Then, in step ST62, the real-time time progress management means 4 receives the real-time data from the real-time management means 3, and refers to the synchronization list shown in FIG. The logic times of the simulators 41-1 to 41-3 in the synchronized state are read from. Next, in step ST63, the real-time time progress management means 4 determines whether or not the relationship between the logical time and the real-time data satisfies the constraint condition by the real-time time condition setting means 2, and in step ST64, the real time is managed. It is determined whether the data value is larger than the logical time.

Here, the processes of steps ST62 to ST64 are repeated until the value of the real time data is equal to or longer than the delay constraint time and the value of the real time data becomes larger than the logical time, and the value of the real time data is delayed. When the time is equal to or more than the restricted time and the value of the real time data becomes larger than the logical time (that is, when the progress of the logical time does not meet the progress of the real time), the real-time time progress management means 4 performs step ST65. At the logical time /
The data exchange management means 6 and the simulator synchronous / asynchronous switching means 9 are notified.

In step ST66, the simulator synchronization / asynchronous switching means 9 receives the notification from the real-time time progress management means 4 that the progress of the logical time is not in time with the progress of the real time, and the simulator synchronization / asynchronous switching table is opened. refer.

Note that, for example, as shown in FIG. 17, in the simulator synchronous / asynchronous switching table, the current state (synchronous or asynchronous) of each simulator 41-i, whether the synchronous / asynchronous state can be changed, and the synchronous state in the asynchronous state. Whether or not to execute data exchange with the simulator in the state in synchronization with the logical time is set.

When the simulator synchronization / asynchronization switching means 9 receives the notification that the progress of the logical time is not in time with the progress of the real time, the simulator synchronization / asynchronization for the simulator 41-i which is not in time with the progress of the logical time is performed. Whether or not the state can be changed is checked in the simulator synchronous / asynchronous switching table. If the state of the simulator 41-i is not set to be changeable, the fact is notified to the real-time time progress management means 4 in step ST67. To do.

For example, in the state shown in FIG. 13, when the progress of the logical time of the simulator 41-1 and the simulator 41-3 is not in time for the progress of the real time, the simulator 4 in the simulator synchronous / asynchronous switching table of FIG.
The settings of 1-1 and the simulator 41-3 are checked, and the state of the simulator 41-3 is not set to be changeable, so that is notified to the real-time time progress management means 4 in step ST67. .

In response to the notification, the real-time time progress management means 4, as in the first embodiment, logically time / data exchange management means 6 so as to forcibly advance the logical time.
When the logical time / data exchange management means 6 receives the notification, the logical time / data exchange management means 6 issues a forced time progress message TAGC forcibly advancing the logical time to the simulator 41-i which is the target of the forced time advance. At the same time, the data exchange message whose integrity cannot be ensured is discarded.

On the other hand, when the state of the simulator 41-i is set to be changeable, the simulator synchronization / asynchronous switching means 9 shifts to the asynchronous state with respect to the simulator 41-i in step ST68. And the real time time progress management means 4 to that effect. The real-time time progress management means 4 deletes the simulator 41-i that has entered the asynchronous state from the synchronization list, and notifies that effect to the logical time /
The data exchange management means 6 is notified. When the logical time / data exchange management means 6 receives the notification to that effect,
The message relating to the simulator 41-i that has transitioned to the asynchronous state is transmitted without being discarded.

At this time, the simulator synchronous / asynchronous switching means 9 provides information on whether or not to execute data exchange with the simulator in the synchronous state in the asynchronous state of the simulator synchronous / asynchronous switching table in synchronization with the logical time. Supplied via the real-time time progress management means 4,
Based on that information, it sends the message either synchronously to a logical time or asynchronously.

For example, in the state shown in FIG. 13, when the progress of the logical time of the simulator 41-1 and the simulator 41-3 is not in time for the progress of the actual time, as shown in FIG. The asynchronous switching means 9 is notified and the simulator synchronous / asynchronous switching table of FIG. 17 indicates that the state of the simulator 41-1 can be changed. Therefore, the simulator 41-i is instructed to shift to the asynchronous state. Is sent, and the fact is notified to the real-time time progress management means 4. Then, as shown in FIG. 19, the simulator 41-1 is deleted from the synchronization list shown in FIG. The simulator synchronous / asynchronous switching table is also changed as shown in FIG. At this time, based on the simulator synchronous / asynchronous switching table of FIG. 17, the message from the simulator 41-i to the simulator 41-i in another synchronous state is transmitted in synchronization with the logical time.

Then, in step ST69, the simulator synchronous / asynchronous switching means 9 starts monitoring the simulator 41-i which has shifted to the asynchronous state, as shown in FIG. The monitoring of the simulator 41-i that has shifted to the asynchronous state is performed as shown in FIG. That is, the simulator synchronous / asynchronous switching means 9 has the simulator 41
At any time, it is checked whether or not the processing of -i has progressed and the simulator 41-i can be returned to the synchronized state (step S
(T81), when it becomes possible to return to the synchronized state, the simulator 41-i is instructed to shift to the synchronized state (step ST82), and the real-time time progress management means 4 is notified of that fact. As shown in FIG. 16, the real-time time progress management means 4 restores the simulator 41-i to the synchronization list.

For example, in the case where the simulator 41-1 that has been asynchronously moved based on the simulator synchronous / asynchronous switching table of FIG. 17 returns to the synchronous state, as shown in FIG. 22, the simulator synchronous / asynchronous switching means 9 is used. Is
The simulator 41-1 is instructed to shift to the synchronized state, and the real-time time progress management means 4 indicates that fact.
To notify.

In this way, when the progress of the logical time does not meet the progress of the real time, the logic of the simulator 41-i whose progress of the logical time does not meet the progress of the real time is calculated based on the simulator synchronous / asynchronous switching table. Forcibly advance the time, or shift to the asynchronous state until it is possible to return to the synchronous state.

As described above, according to the fifth embodiment, when the progress of the logical time is not in time for the progress of the real time, the logical time is forcedly advanced based on the simulator synchronous / asynchronous switching table. , Or the simulator 4 goes into an asynchronous state until it is possible to return to the synchronous state
Since the 1-i are transferred, the simulator 41
-For each i, it is possible to set whether to prioritize forced progress of the logic time or accurate execution of the simulation, and to appropriately set the progress synchronized with the real time of the simulation and the accuracy of the simulation. The effect of being able to do is obtained.

In the fifth embodiment, the simulators in the synchronized state are managed by the synchronization list. However, the simulators may be managed by a format other than the list format.

Sixth Embodiment FIG. 23 is a block diagram showing a configuration example of a parallel distributed simulation system according to the sixth embodiment of the present invention. In FIG. 23, reference numeral 10 has a built-in simulator synchronous / asynchronous switching table in which the changeability of the state is set for each group of the simulators 41-i, and when the relationship between the logical time and the real time data does not satisfy the constraint condition, A grouping simulator that determines, based on the simulator synchronous / asynchronous switching table, whether the logical time of the simulator is forcibly advanced or whether the logical time of the simulator is asynchronous with the logical time of another simulator for each group. It is a synchronous / asynchronous switching means (simulator synchronous / asynchronous switching means). The other components in FIG. 23 are the same as those in the fifth embodiment.
Since it is the same as the one described above, the description thereof will be omitted.

FIG. 24 is a diagram showing an example of the simulation synchronous / asynchronous switching table used in the simulation manager of FIG. In FIG. 24, the simulator 41-1 and the simulator 41-2, the simulator 41-3, and the simulator 41-4 each form one group.

Next, the operation will be described. In the sixth embodiment, when the grouping simulator synchronization / asynchronization switching means 10 receives a notification from the real-time time progress management means 4 that the progress of the logical time is not in time with the progress of the real time, the simulator synchronization / asynchronization is performed. Refer to the switching table. Here, the grouping simulator synchronous / asynchronous switching means 10 checks the simulator synchronous / asynchronous switching table for the possibility of changing the synchronous / asynchronous state of the group to which the simulator 41-i, which does not meet the progress of the logical time, can be checked, and the group If the state of the simulator 41-i belonging to is not set to be changeable, the fact is notified to the real-time time progress management means 4.

On the other hand, when the state of the simulator 41-i belonging to the group is set to be changeable, the grouped simulator synchronous / asynchronous switching means 10
Notifies the simulator 41-i belonging to that group of the shift to the asynchronous state, and also notifies the real-time time progress management means 4 to that effect. The real-time time progress management means 4 deletes the simulator 41-i that has moved to the asynchronous state from the synchronization list and notifies the logical time / data exchange management means 6 of that fact. When the logical time / data exchange management means 6 receives the notification to that effect, the simulator 4 that has shifted to the asynchronous state
Send the message for 1-i without discarding it. At this time, the message is synchronized with the logical time based on the information of whether or not the data exchange with the simulator in the synchronous state is executed in synchronization with the logical time in the simulator synchronization / asynchronous switching table. Or send asynchronously.

Then, the grouped simulator synchronous / asynchronous switching means 10 is used for the simulator 4 which has been changed to asynchronous.
Monitor 1-i for each group. The grouped simulator synchronous / asynchronous switching means 10 can check whether or not the processing of the simulator 41-i of the group has progressed and the simulator 41-i of the group can return to the synchronized state at any time, and can return to the synchronized state. When it becomes, the simulator 41-i of the group is instructed to shift to the synchronized state, and the real-time time progress management means 4 is notified of that fact. The real-time time progress management means 4 returns the simulator 41-i of the group to the synchronization list.

For example, in the simulator synchronous / asynchronous switching table shown in FIG. 24, since the simulator 41-1 and the simulator 41-2 are in one group, the progress of the logical time of the simulator 41-1 is the progress of the real time. If it is not in time, the simulator 41-1 and the simulator 41-2 shift to an asynchronous state, the grouped simulator synchronization / asynchronous switching means 10 monitors the simulator 41-1 and the simulator 41-2, and the simulator 41-1 When both 1 and simulator 41-2 can return to the synchronized state, they are returned to the synchronized state. The simulators 41-3 and 41-4 each form one group with one simulator.

Since the other processes are the same as those in the fifth embodiment, the description thereof will be omitted.

As described above, according to the sixth embodiment, when the progress of the logical time is not in time for the progress of the real time, the logical time is forcibly set for each group based on the simulator synchronous / asynchronous switching table. The simulator 41-i is made to shift to the asynchronous state until it can be returned to the synchronous state or to be returned to the synchronous state. It is possible to set which of the two executions is to be prioritized, and it is possible to appropriately set the progress synchronized with the real time of the simulation and the accuracy of the simulation.

Seventh Embodiment 25 is a block diagram showing a configuration example of a parallel distributed simulation system according to the seventh embodiment of the present invention. Simulator 41-of the parallel distributed simulation system according to the seventh embodiment
1-41-4 transmits the data exchange message to which the priority is added to the simulation manager 1.

In the figure, 5A is a simulator 41-1.
.. 41-4 and the logical time / data exchange management means 6 exchange messages, and the simulators 41-1 to 4-4 are executed.
It is a communication means (message transmission means) that supplies the data exchange messages from 1-4 to the message priority order delivery means 11 and supplies the other messages to the logical time / data exchange management means 6. In the seventh embodiment, the logical time / data exchange management means 6 manages only the logical time.

Reference numeral 11 stores the data exchange messages in the message table storage unit 12 in the order of priority added to the data exchange message, reads the data exchange message when the logical time advances, and causes the communication means 5A to transmit the data exchange message. When the time is forcibly advanced, the data exchange message having the highest priority among the data exchange messages to be transmitted before the logical time after the forcible advance is searched, and only the messages higher than the message are searched. It is a message priority order delivery means (first message priority selection means) to be transmitted by the communication means 5A. A message table storage unit 12 stores the data exchange message in a table format.

FIG. 26 is a diagram showing an example of the message table. As shown in the message table of FIG. 26,
The priority of the data exchange message, the simulator 41-i of the transmission source, the simulator 41-i of the transmission destination, and the content of the message are stored for each message.

Since the other constituent elements in FIG. 25 are the same as those in the first embodiment, the description thereof will be omitted.

Next, the operation will be described. First, when each simulator 41-i issues a data exchange message designating a transmission time and a progress request message TAR of a logical time indicating an executable time progress to the simulation manager 1, the data exchange message is transmitted by the communication means 5.
It is supplied to the message priority order delivery means 11 via A and stored in the message table storage unit 12. On the other hand, the logical time progress request message TAR is supplied to the logical time / data exchange management means 6 via the communication means 5A.

The logical time / data exchange management means 6
Receives the logical time progress request message TAR from each simulator 41-i, calculates the latest logical time at which data consistency in the entire simulation can be secured, and advances the logical time for a predetermined time. At that time, the scheduled logical time is supplied to the real-time time progress management means 4 to request permission to advance the logical time.

When the real-time time progress management means 4 is requested to permit the progress of the logical time, it receives the constraint condition from the real-time time condition setting means 2 and the real time data from the real time management means 3, and receives the logical time / data. It is determined whether or not the relationship between the logical time supplied from the exchange management means 6 and the real time data thereof satisfies the constraint condition from the real time time condition setting means 2, and it is determined whether or not the progress of the logical time is possible.

Waiting until the constraint condition is satisfied, and when the constraint condition is satisfied, the real-time time progress management means 4
Permits the progress of the logical time and notifies the message priority order delivery means 11 of that. Then, when the logical time / data exchange management means 6 receives the permission to advance the logical time, it issues a time advance permission message TAG to each simulator 41-i, and the message priority order delivery means 11 causes the message Table storage 12
Then, the data exchange message to be transmitted at that logical time is read out and transmitted by the communication means 5A. The data exchange message read by the message priority order delivery means 11 is deleted from the message table.

In this way, the simulation manager 1 controls so that the logical time does not advance faster than the actual time.

The real-time time progress management means 4
Monitors whether or not the progress of the logical time is in time with the progress of the real time, asynchronously with the above process.

The real time time progress management means 4 receives the real time data from the real time management means 3 and
The logical time is read from the logical time / data exchange management means 6. Next, the real-time time progress management means 4 determines whether or not the relationship between the logical time and the real-time data satisfies the constraint condition by the real-time time condition setting means 2, and the value of the real-time data is the logical time. Determine if greater than.

Here, when the value of the real time data is equal to or longer than the delay constraint time and the value of the real time data is larger than the logical time (that is, when the progress of the logical time cannot meet the progress of the real time). ), The real-time time progress management means 4 notifies the logical time / data exchange management means 6 to forcibly advance the logical time, and at the same time the message priority order indicates that the logical time is forcibly advanced. Notify the delivery means 11.

Upon receiving the notification, the logical time / data exchange management means 6 issues a forced time advance message TAGC forcibly advancing the logical time to the simulator 41-i which is the target of the forced time advance.

On the other hand, the message priority order delivery means 11
When notified of this, searches the message table for the highest priority among the data exchange messages to be sent before the logical time after the compulsory progress, and only the messages above that message are searched. Is read out and transmitted by the communication means 5A. The data exchange message read by the message priority order delivery means 11 is deleted from the message table.

For example, in the case where the message table is as shown in FIG. 26, forced progress of the logical time occurs,
If the highest priority of the data exchange messages to be transmitted before the logical time after the compulsory progress is 3, the message having a priority of 1 or 2 higher than the message is read, and communication is performed. It is transmitted by means 5A.

In this way, when the progress of the logical time is not in time for the progress of the real time, the logical time is forcibly advanced at any time, and at this time, the data exchange message having a high priority is transmitted.

Each simulator 41-i adds the priority to the data exchange message, except for the first embodiment.
Works similar to that by.

As described above, according to the seventh embodiment, when the forced progress of the logical time occurs, the data of high priority designated by the simulator 41-i is preferentially transmitted. Therefore, while the progress of the logical time is synchronized with the progress of the real time, important data exchange is preferentially executed, and the accuracy of the simulation can be improved.

In the seventh embodiment, the data exchange message is stored in the table format, but it may be stored in another format.

Eighth Embodiment 27 is a block diagram showing a configuration example of a parallel distributed simulation system according to the eighth embodiment of the present invention. In the figure, 13 has a built-in attribute priority table of the priority set corresponding to the data (attribute) of the data exchange message exchanged between simulators, and the data exchange message supplied by the communication means 5A is a message table. The data exchange message is held in the storage unit 12 and is read by the communication means 5A when the logical time is advanced and is transmitted by the communication means 5A. When the logical time is forcibly advanced, the data exchange message is compulsorily calculated based on the attribute priority table. The priority of each data exchange message is determined from the attributes of each data of the data exchange message to be transmitted before the logical time after the progress, and the highest level among the data exchange messages to be transmitted before the logical time after which the forced progress is made. That has a priority of, and only the data exchange messages higher than the data exchange message are searched Attribute priority order delivery means to transmit the communication means 5A (second
Message priority selecting means).

FIG. 28 is a diagram showing an example of the attribute priority table. In FIG. 28, each simulator 41-i
The priorities are set for the attributes i, j, k, and 1 held in the.

Since the other constituent elements of FIG. 27 are similar to those of the seventh embodiment, the description thereof will be omitted. However, in the eighth embodiment,
Each simulator 41-i does not add a priority to the data exchange message.

Next, the operation will be described. When the attribute priority order delivery means 13 is notified that the forced progress of the logical time has occurred, the data exchange message to be transmitted before the logical time after the forced progress based on the attribute priority table. The priority of each data exchange message is determined from the attribute of each data of, and the one having the highest priority among the data exchange messages to be transmitted before the forcibly advanced logical time is searched, and the data exchange message is searched. Only the higher order data exchange message is transmitted by the communication means 5A.

The other processing is the same as that according to the seventh embodiment, and the description thereof will be omitted.

As described above, according to the eighth embodiment, when the forced progress of the logical time occurs, the priority of the message is determined based on the priority of the preset attribute, and the priority of the message is determined. Messages with high priority are sent preferentially, so that the progress of the logical time is synchronized with the progress of the real time, important data exchange is executed preferentially, and the simulation can be executed more accurately. The effect that it can be obtained.

Ninth Embodiment 29 is a block diagram showing a configuration example of a parallel distributed simulation system according to a ninth embodiment of the present invention. In the figure, 14 has a built-in route priority table of priorities set corresponding to the source and destination (that is, communication route) of data exchange messages exchanged between simulators, and the communication means 5A
Is stored in the message table storage unit 12, the data exchange message is read out when the logical time is advanced and transmitted by the communication means 5A, and when the logical time is forcibly advanced, Based on the route priority table, determine the priority of each data exchange message from the communication route of the data exchange message that should be transmitted before the logical time after the compulsory progress, and transmit the message before the logical time after the compulsory progress. Power exchange messages having the highest priority among the data exchange messages to be searched, and only the data exchange messages higher than the data exchange message are transmitted by the communication means 5A between the simulator priority order delivery means (third message priority selection). Means).

FIG. 30 is a diagram showing an example of the route priority table. In the route priority table, the priorities of all communication routes are set. As shown in FIG. 29, when the number of simulators 41-1 to 41-4 is four, each simulator 41-i becomes a transmission source and the other three simulators 41-i become transmission destinations. 12
Priority is set for the communication paths (= 4 × 3).

Since the other components of FIG. 29 are similar to those of the eighth embodiment, their description will be omitted.

Next, the operation will be described. When the simulator priority order delivery means 14 is notified that the forced progress of the logical time has occurred, based on the route priority table, data exchange to be transmitted before the logical time after the forced progress. The priority of each data exchange message is determined from the communication path of the message, and the data exchange message having the highest priority among the data exchange messages to be transmitted before the logical time at which the forcibly proceeded is searched, and the data exchange message is searched. Only the upper data exchange message is transmitted by the communication means 5A.

Since the other processing is the same as that of the eighth embodiment, the description thereof will be omitted.

As described above, according to the ninth embodiment, when the forced progress of the logical time occurs, the priority of the message is determined based on the priority of the communication path set in advance and the priority is given. Since high-priority messages are sent preferentially, important data exchange is performed preferentially while synchronizing the progress of the logical time with the progress of the real time.
The effect that the simulation can be executed more accurately is obtained.

[Embodiment 10] 31 is a block diagram showing a configuration example of a parallel distributed simulation system according to the tenth embodiment of the present invention. The simulators 41-1 to 41-4 of the parallel distributed simulation system according to the tenth embodiment send the data exchange message to which the priority is added to the simulation manager 1.

In the figure, reference numeral 15 indicates the data exchange message received from the communication means 5A to the message priority determining means 16A, the attribute priority determining means 16B, and the inter-simulator priority determining means 16C, which derive their respective priorities. The integrated priority selection means (integrated priority calculation means) for holding the data exchange message in the message table storage unit 12 together with the highest priority (integrated priority).

16A is a message priority determining means (integrated priority calculating means) for extracting the priority added to the exchange message by the simulator 41-i of the transmission source and supplying it to the integrated priority selecting means 15, and 16B. 27, the attribute priority determining means for supplying the priority corresponding to the data of the data exchange message to the integrated priority selecting means 15 based on the built-in attribute priority table similarly to the attribute priority ordering means 13 of FIG. 16C is an integrated priority calculation means), and the integrated priority of 16C is the priority corresponding to the communication path of the data exchange message based on the built-in path priority table as in the inter-simulator priority order delivery means 14 of FIG. It is an inter-simulator priority determining means (integrated priority calculating means) supplied to the selecting means 15.

When the logical time is advanced, the data exchange message is read from the message table storage unit 12 and transmitted by the communication means 5A. Among the data exchange messages to be transmitted before the logical time, the one having the highest priority is searched for, and only the messages higher than the message are transmitted by the communication means 5A by the integrated priority order delivery means (message integrated priority means). ).

Since the other components of FIG. 31 are the same as those of the seventh embodiment, the description thereof will be omitted.

Next, the operation will be described. Upon receiving the data exchange message from the communication means 5A, the integrated priority selection means 15 supplies the data exchange message to the message priority determination means 16A, the attribute priority determination means 16B, and the inter-simulator priority determination means 16C, respectively. Message priority determining means 16A, attribute priority determining means 16B and inter-simulator priority determining means 16C.
The priority determined by each of these is received, and the data exchange message is held in the message table storage unit 12 together with the highest priority among them.

On the other hand, when the real-time time progress management means 4 notifies the integrated priority order delivery means 17 that the forced progress of the logical time has occurred, the integrated priority order delivery means 17 sends it before the logical time after the forced progress. Of the data exchange messages that should have the highest priority, the message table storage unit 1
2 is searched, and only the message higher than the message is read out and transmitted by the communication means 5A. The data exchange message read by the integrated priority order delivery means 17 is deleted from the message table storage unit 12.

The other processing is the same as that according to the seventh embodiment, and the description thereof will be omitted.

In the tenth embodiment, 3
Although the priority of the type is used, two of the three types of priority may be used to determine the priority actually used when selecting the data exchange message. At that time, if the message priority determining means 16A is not used, each simulator 41-i does not need to add the priority to the data exchange message.

As described above, according to the tenth embodiment, when the forced progress of the logical time occurs, the priority added to the message, the priority of the preset data, and the preset value. The priority of the message is determined based on at least two of the priorities of the established communication paths, and the message with the higher priority is preferentially transmitted. It is possible to obtain the effect that the important data exchange is preferentially executed while synchronizing with, and the simulation can be executed more accurately.

Eleventh Embodiment 32 is a block diagram showing a configuration example of a parallel distributed simulation system according to the eleventh embodiment of the present invention.

In the figure, 4C receives the logical time from the logical time / data exchange management means 6, judges whether or not the relationship between the logical time and the real time data satisfies the constraint condition, and depending on the judgment result. Of the permission of the progress of the logical time, and when the progress of the logic time in the simulator 41-i is not in time for the progress of the real time, whether or not the forced progress of the logic time in the simulator 41-i is time-synchronized. The block control means 18 is inquired, and when the forced progress of the logical time is permitted, the fact is notified to the logical time / data exchange management means 6, and when the forced progress of the logical time is not permitted, the simulator 4 is instructed.
It is a real-time time progress management means (time progress management means, first time progress stop means) that causes the logical time / data exchange management means 6 to wait until the processing by 1-i is completed.

Reference numeral 18 is a real-time time progress management means 4C.
When the inquiry is received, the time synchronization block table in the time synchronization block table storage unit 19 is referred to check whether the simulator related to the inquiry is registered in the time synchronization block table. Is a time synchronization block control means (first time progress stop means) which permits the forced progress of the logical time and does not permit the forced progress of the logical time when registered.

A time synchronization block table storage unit 19 holds a time synchronization block table in which a simulator is registered which gives priority to the simulation processing over the forced progress of the logical time. Reference numeral 20 is a block simulator designating means for registering a simulator that prioritizes the simulation processing over the forced progress of the logical time in the time synchronization block table.

The other components of FIG. 32 are similar to those of the first embodiment, and therefore the description thereof will be omitted.

Next, the operation will be described. FIG. 33 is a flowchart illustrating a process of determining whether or not to forcibly advance the logical time in the eleventh embodiment.

The real-time time progress management means 4C executes the process shown in FIG. 33 to monitor whether the progress of the real time is in time with the progress of the logical time.

First, the real-time time progress management means 4C
Receives in advance the constraint condition by the real-time time condition setting means 2 in step ST101.

Then, in step ST102, the real-time time progress management means 4C causes the real-time time management means 3 to operate.
The real time data is received from and the logical time is read from the logical time / data exchange management means 6. Next, the real-time time progress management means 4C, step ST103.
In step ST104, it is determined whether the value of the real time data is greater than or equal to the delay constraint time, and in step ST104, it is determined whether the value of the real time data is greater than the logical time.

Here, steps ST102 to ST104 are performed until the value of the real time data is equal to or longer than the delay constraint time and the value of the real time data becomes larger than the logical time.
When the value of real-time data is greater than or equal to the delay constraint time and the value of real-time data is larger than the logical time (that is, when the progress of the logical time is not in time for the progress of the real time) In step ST105, the real-time time progress management means 4C uses the simulator 41- in which the progress of the logical time does not meet the progress of the real time.
The time synchronization block control means 18 is inquired whether or not the logical time in i may be forcedly advanced.

The time-synchronized block control means 18 checks whether or not the simulator 41-i is registered in the time-synchronized block table of the time-synchronized block table storage unit 19, and if not registered, the logical time is forced. The logical time, and if it is registered, the forced progress of the logical time is not allowed.

Then, in step ST106, when the forced progress of the logical time is permitted, the real-time time progress management means 4C notifies the logical time / data exchange management means 6 of this in step ST107, and the logical time / data exchange management means 6 is notified. / When the data exchange management means 6 receives the notification, it issues the compulsory time progress message TAGC to the simulator 41-i that is the target of the compulsory time progress, and discards the data exchange message whose consistency cannot be ensured.

On the other hand, when the forced progress of the logical time is not permitted, the real-time time progress management means 4C
In step ST108, the logical time / data exchange management means 6 is made to wait until the processing by the simulator 41-i in which the progress of the logical time is not in time for the progress of the real time is completed. In this case, when the processing by the simulator 41-i is completed, the real-time time progress management means 4C
The logical time / data exchange management means 6 is caused to issue the forced time advance message TAGC to the simulator 41-i which is the target of the forced time advance, and to discard the data exchange message whose consistency cannot be ensured.

Since the other processes are the same as those in the first embodiment, the description thereof will be omitted.

As described above, according to the eleventh embodiment, when the progress of the logical time in the simulator 41-i registered in the time synchronization block table is not in time with the progress of the real time, the simulator 41-i. Since the logical time is forcibly advanced after completion of the processing by, it is possible to select, for each simulator, which one of the synchronization of the logical time to the actual time and the completion of the processing is prioritized. The effect that the simulation can be executed more accurately in the case of evaluating the continuous quantity is obtained.

In the eleventh embodiment, the simulator which gives priority to the simulation process over the forced progress of the logical time is registered in the table format, but it may be registered in another format. Good.

Further, although a simulator for giving priority to the simulation processing over the forced progress of the logical time is registered in the time synchronous block table, the simulator specified for the specified simulator is compulsory without providing the time synchronous block table. For example, the time synchronization block control unit 18 may directly reply whether to give priority to the simulation processing over the progress of the logical time.

[Embodiment 12] 34 is a block diagram showing a configuration example of a parallel distributed simulation system according to a twelfth embodiment of the present invention.

In the figure, 4D receives the logical time from the logical time / data exchange management means 6, judges whether the relation between the logical time and the real time data satisfies the constraint condition, and depending on the judgment result. If the progress of the logical time in the simulator is not in time with the progress of the real time, the data (attribute) of the data exchange message to be sent before the logical time after the forced progress is sent. Based on this, the time synchronization block control means 18A is queried as to whether or not the logical time can be forcibly advanced, and when the logical time is forcibly advanced, the fact is notified to the logical time / data exchange management means 6 and the logical time If the forced progress of the specified data is not allowed, the specified data (attribute It is a real-time time progress management means for waiting a logical time / data exchange management unit 6 until the transmission of the data exchange message is completed with the (time progress management unit, the second time progression stopping means).

18A is a real time time progress management means 4
When the inquiry from D is received, the time synchronization block table of the time synchronization block table storage unit 19A is referred to, whether or not the data (attribute) related to the inquiry is registered in the time synchronization block table, and the inquiry is made. If all the data (attributes) related to are not registered, the forced advance of the logical time is permitted, and if any one of them is registered, the forced advance of the logical time is not permitted. Time synchronization It is block control means (second time progress stop means).

Reference numeral 19A is a time synchronization block table storage section which holds a time synchronization block table in which data (attribute) for prioritizing transmission of a data exchange message is registered over advance of forced logical time. Reference numeral 21 is a block attribute designating means for registering data (attribute) that gives priority to the transmission of the data exchange message over the forced progress of the logical time in the time synchronization block table.

The other components in FIG. 34 are the same as those in the first embodiment, and the description thereof will be omitted.

Next, the operation will be described. The real-time time progress management means 4D monitors whether the progress of the logical time is in time for the progress of the real time.

The real time time progress management means 4D receives the real time data from the real time management means 3 and reads the logic time from the logic time / data exchange management means 6. Next, the real-time time progress management unit 4D determines whether the real time is equal to or longer than the delay constraint time, and determines whether the value of the real time data is larger than the logical time.

Here, the value of the real time data is equal to or greater than the delay constraint time, and the process waits until the value of the real time data is greater than the logical time, and the value of the real time data is equal to or greater than the delay constraint time, and When the value of the real time data becomes larger than the logical time (that is, when the progress of the logical time does not meet the progress of the real time), the real time time progress management means 4D transmits before the logical time after the forced advance. The data of each data exchange message to be supplied is supplied to the time synchronization block control means 18A to inquire whether the logical time may be forcibly advanced.

The time synchronization block control means 18A checks whether or not the data is registered in the time synchronization block table of the time synchronization block table storage section 19A,
If all the supplied data are not registered, the forced progress of the logical time is permitted. If any of the registered data is registered, the forced progress of the logical time is not permitted. The real-time time progress management means 4D is notified of the existing data.

Then, the real time time progress management means 4D
When the forced progress of the logical time is permitted, the logical time / data exchange management means 6 is notified of the fact, and when the logical time / data exchange management means 6 receives the notification, the forced time progress message is sent. The TAGC is issued to the simulator 41-i which is the target of the forced time advance, and the data exchange message whose consistency cannot be ensured is discarded.

On the other hand, when the forced progress of the logical time is not permitted, the real-time time progress management means 4D
The transmission of the data exchange message having the notified data is executed, and the logical time / data exchange management means 6 waits until the transmission is completed. When the transmission is completed, the real-time time progress management means 4D informs the logical time / data exchange management means 6 of the forced time progress message TAG.
C is issued to the simulator 41-i, which is the target of forced time advance, and the data exchange message whose consistency cannot be ensured is discarded.

Since the other processes are the same as those in the first embodiment, the description thereof will be omitted.

As described above, according to the twelfth embodiment, when the progress of the logical time does not meet the progress of the real time, the transmission of the data exchange message having the data registered in the time synchronization block table is completed. After doing
Since the logical time is forcibly advanced, it is possible to select whether to give priority to synchronization of the logical time to the actual time or completion of processing for each data exchanged between simulators. The effect that the simulation can be executed more accurately in the case of evaluating the continuous quantity is obtained.

Thirteenth Embodiment 35 is a block diagram showing a configuration example of a parallel distributed simulation system according to a thirteenth embodiment of the present invention.

In the figure, 4E receives the logical time from the logical time / data exchange management means 6, judges whether or not the relationship between the logical time and the real time data satisfies the constraint condition, and depending on the judgment result. If the progress of the logic time in the simulator is not in time for the progress of the real time, the communication based on the communication path of the data exchange message to be sent before the logic time after the forced progress is sent. The time synchronization block control unit 18B is inquired whether or not the logical time can be forcibly advanced, and when the logical time forced advance is permitted, the fact is notified to the logical time / data exchange management unit 6, and the logical time is forced. If the progress is not allowed, the data exchange of the specified communication route in the data exchange message to be sent before the logical time after the forced progress is performed. Until the transmission of the message is completed is real time time progress management means for waiting a logical time / data exchange management unit 6 (time progress management unit, the third time progression stopping means).

18B is a real time time progress management means 4
When the inquiry from E is received, the time synchronization block table of the time synchronization block table storage unit 19B is referred to, whether or not the communication path related to the inquiry is registered in the time synchronization block table is checked, and the inquiry is performed. The time synchronization block control means (permits the forced progress of the logical time when all the communication paths are not registered, and does not permit the forced progress of the logical time when any one of them is registered. It is a third time progress stopping means).

Reference numeral 19B is a time synchronization block table storage section which holds a time synchronization block table in which a communication path for prioritizing transmission of a data exchange message is registered over advance of forced logical time. Reference numeral 22 is a block message designating means for registering in the time synchronization block table a communication path that prioritizes the transmission of the data exchange message over the forced progress of the logical time.

The other components of FIG. 35 are the same as those in the first embodiment, and the description thereof will be omitted.

Next, the operation will be described. The real-time time progress management means 4E monitors whether the progress of the logical time is in time for the progress of the real time.

The real time time progress management means 4E receives the real time data from the real time management means 3 and reads the logic time from the logic time / data exchange management means 6. Next, the real-time time progress management means 4E determines whether the value of the real time data is equal to or longer than the delay constraint time, and determines whether the value of the real time data is larger than the logical time.

Here, the value of the real time data is equal to or greater than the delay constraint time, and the process waits until the value of the real time data is greater than the logical time, and the value of the real time data is equal to or greater than the delay constraint time, and When the value of the real time data becomes larger than the logical time (that is, when the progress of the logical time does not meet the progress of the real time), the real time time progress management means 4E transmits before the logical time after the forced advance. The communication path of each data exchange message to be supplied is supplied to the time synchronization block control means 18B to inquire whether the logical time may be forcibly advanced.

The time synchronization block control means 18B checks whether or not the communication path is registered in the time synchronization block table of the time synchronization block table storage section 19B, and when all the supplied communication paths are not registered, Permits the forced progress of the logical time, does not permit the forced progress of the logical time when any of them is registered, and notifies the registered communication route to the real-time time progress management means 4E. To do.

Then, the real-time time progress management means 4E
When the forced progress of the logical time is permitted, the logical time / data exchange management means 6 is notified of the fact, and when the logical time / data exchange management means 6 receives the notification, the forced time progress message is sent. The TAGC is issued to the simulator 41-i which is the target of the forced time advance, and the data exchange message whose consistency cannot be ensured is discarded.

On the other hand, when the forced progress of the logical time is not permitted, the real-time time progress management means 4E
Transmission of the data exchange message of the notified communication path is executed, and the logical time / data exchange management means 6 is made to wait until the transmission is completed. When the transmission is completed, the real-time time progress management means 4E causes the logical time / data exchange management means 6 to issue the compulsory time progress message TAGC to the simulator 41-i which is the target of the compulsory time progress, and the matching. Data exchange messages that cannot secure data are discarded.

Since the other processes are the same as those in the first embodiment, the description thereof will be omitted.

As described above, according to the thirteenth embodiment, when the progress of the logical time does not meet the progress of the real time, the transmission of the data exchange message of the communication path registered in the time synchronization block table is completed. After that, since the logical time is forcibly advanced, it is possible to select whether to prioritize synchronization of the logical time to the actual time or completion of processing for each communication path of data exchange,
The effect that the simulation can be executed more accurately is obtained.

Fourteenth Embodiment 36 is a block diagram showing a configuration example of a parallel distributed simulation system according to a fourteenth embodiment of the present invention.

In the figure, 4F receives the logical time from the logical time / data exchange management means 6, judges whether the relation between the logical time and the real time data satisfies the constraint condition, and depending on the judgment result. If the progress of the logic time in the simulator is not in time for the progress of the real time, the permission of the forced progress of the logic time in the simulator is displayed before the logic time after the forced progress. To the time synchronization block control means 18C based on the data and the communication path of the data exchange message to be transmitted to the logical time / data exchange management means 6 when the forced progress of the logical time is permitted. If the forced progress of the logical time is not permitted, the progress of the logical time will not be in time for the progress of the real time. Logical time / data exchange management until the processing by i is completed and the transmission of the data exchange message of the specified data and the communication route among the data exchange messages to be transmitted before the logical time after the forced progress is completed It is a real-time time progress management means (time progress management means, integrated time progress stop means) that makes the means 6 stand by.

18C is a real-time time progress management means 4
When the inquiry from F is received, the time synchronization block table of the time synchronization block table storage unit 19C is referred to and it is checked whether or not the simulator, the data and the communication path relating to the inquiry are respectively registered in the time synchronization block table. If neither is registered, the compulsory progress of the logical time is permitted, and if any of them is registered, the compulsory progress of the logical time is not permitted. -I, a time synchronization block control means (integrated time progress stop means) for notifying the real-time time progress management means 4F of data or a communication path.

Reference numeral 19C is a simulator for prioritizing simulation processing over forced logical time progress, and a time synchronization block table in which data and communication paths for prioritizing transmission of data exchange messages over forced logical time progress are registered. It is a time synchronization block table storage unit to hold.

Reference numeral 23 designates a simulator for giving priority to the simulation processing over the forced progress of the logical time by the block simulator designating means 20, and sets a block attribute of the data for giving priority to the transmission of the data exchange message over the forced progress of the logical time. A communication path designated by the designating means 21 and giving priority to the transmission of the data exchange message over the forced progress of the logical time is designated by the block message designating means 22, and those simulators, data and communication paths are registered in the time synchronization block table. Block specifying means.

Since the other components of FIG. 36 are similar to those of the eleventh, twelfth and thirteenth embodiments, the description thereof will be omitted.

Next, the operation will be described. The real-time time progress management unit 4F monitors whether the progress of the logical time is in time with the progress of the real time.

The real time time progress management means 4F receives the real time data from the real time management means 3 and reads the logic time from the logic time / data exchange management means 6. Next, the real-time time progress management means 4F determines whether the value of the real time data is equal to or greater than the delay constraint time, and determines whether the value of the real time data is greater than the logical time.

Here, the value of the real time data is equal to or longer than the delay constraint time, and the process waits until the value of the real time data becomes larger than the logical time, and the value of the real time data is equal to or greater than the delay constraint time, and When the value of the real time data becomes larger than the logical time (that is, when the progress of the logical time does not meet the progress of the real time), the real-time time progress management means 4F transmits before the logical time after the forced advance. The data of each data exchange message and the communication path to be supplied may be supplied to the time synchronization block control means 18C to forcibly advance the logical time in the simulator 41-i in which the progress of the logical time is not in time with the advance of the real time. Inquire whether or not.

The time synchronization block control means 18C checks whether or not any one of the simulator 41-i, the data and the communication path is registered in the time synchronization block table of the time synchronization block table storage section 19C, and the simulator 41. -I, if the attribute of data and communication path are not all registered, the forced advance of the logical time is permitted, and if any of them is registered, the forced advance of the logical time is not permitted. , The registered simulator 41-i, data or communication route is notified to the real-time time progress management means 4F.

Then, the real-time time progress management means 4F
When the forced progress of the logical time is permitted, the logical time / data exchange management means 6 is notified of the fact, and when the logical time / data exchange management means 6 receives the notification, the forced time progress message is sent. The TAGC is issued to the simulator 41-i which is the target of the forced time advance, and the data exchange message whose consistency cannot be ensured is discarded.

On the other hand, when the forced progress of the logical time is not permitted, the real-time time progress management means 4F
Transmission of the notified data and the data exchange message of the communication path is executed, and the progress of the logical time does not match the progress of the actual time. The processing of the simulator 41-i is completed, and the logical time / The data exchange management means 6 is made to stand by. When the processing and the transmission thereof are completed, the real-time time progress management means 4F sends a forced time advance message TAGC to the logical time / data exchange management means 6 to the simulator 41-i which is the target of the forced time advance. In addition to being issued, the data exchange message whose integrity cannot be ensured is discarded.

Since the other processes are the same as those in the eleventh, twelfth and thirteenth embodiments, the description thereof will be omitted.

As described above, according to the fourteenth embodiment, when the progress of the logical time does not meet the progress of the real time, the processing of the simulator 41-i registered in the time synchronization block table is completed, Moreover, since the logical time is forcibly advanced after the transmission of the data registered in the time synchronization block table and the data exchange message of the communication path is completed, the simulator 41
-For each i and for each data and communication path of data exchange, it is possible to select which of the synchronization of the logical time to the actual time and the completion of the processing is prioritized, and the simulation can be executed more accurately. The effect that it can be obtained.

In the fourteenth embodiment, which of the simulator 41-i, the data and the communication path is selected, which one of the logical time synchronization with the actual time and the completion of the processing has priority is selected. However, it may be possible to select whether to prioritize the synchronization of the logical time to the actual time or the completion of the processing based on two of the three.

Fifteenth Embodiment 37 is a block diagram showing a configuration example of a parallel distributed simulation system according to the fifteenth embodiment of the present invention. FIG. 38 is a block diagram showing an application example of the parallel distributed simulation system according to the fifteenth embodiment of the present invention.

In FIG. 37, 24 is supplied with real time data from the real time management means 3, multiplies the value of the real time data by a predetermined coefficient x, and calculates the progress speed of the real time by (1 /
x) times (when x = 1, the traveling speed is kept as it is), and the real time progress control means supplies it to the real time time progress management means 4. Other components of FIG. 37 are the same as those according to the first embodiment.
The description is omitted.

The coefficient x of the real time progress control means 24 may be set in advance, or, as shown in FIG. 38, may be set and adjusted by the external device 61 via the interface 51 as appropriate. Good.

Next, the operation will be described. The real time management means 3 supplies the real time data to the real time progress control means 24, and the real time progress control means 24 multiplies the value of the real time data by a predetermined coefficient x to obtain the progress speed of the real time (1 /
x) times and supply to the real-time time progress management means 4. The real-time time progress management means 4 executes the above-mentioned various processes based on the real time. For example, x = 2
In the case of, the simulation is executed in slow motion in synchronization with half the speed of the progress of the actual time, and x = 1.
In the case of / 3, the simulation is executed in fast-forward in synchronization with the speed three times as fast as the actual time.

Since the other processing is the same as that of the first embodiment, the description thereof will be omitted.

As described above, according to the fifteenth embodiment, since the progress speed at the real time can be changed, the effect that the simulation can be executed at the progress speed appropriately set by the external device is obtained. can get.

Sixteenth Embodiment 39 is a block diagram showing a configuration example of a parallel distributed simulation system according to the sixteenth embodiment of the present invention. In the figure, numeral 25 reads a coefficient x by which the value of the real time data is multiplied from the real time progress control means 24, and according to a predetermined rule, the time synchronization block table storage unit (stop judging means for each progress speed) It is a speed-specific block designating unit (progress speed-specific stop determination unit) for rewriting the contents of the time synchronization block table of 19. The other components of FIG. 39 are the same as those of the eleventh and fifteenth embodiments, and therefore the description thereof will be omitted.

Next, the operation will be described. The simulation is executed at the speed set by the real time progress control means 24. At this time, the speed-specific block designating means 25
Is the coefficient x by which the real time progress control means 24 multiplies the real time.
Is read out and the contents of the time synchronization block table of the time synchronization block table storage unit 19 are rewritten according to the value of the coefficient x (that is, the speed of simulation) according to a predetermined rule. Then, the time synchronization block control means (stop determination means for each advancing speed) 18 refers to the time synchronization block table of the time synchronization block table storage section 19 to determine whether the forced progress of the logical time is real time time progress management means ( The time progress stop means) 4C is notified.

The other processing is the same as that of the eleventh embodiment, and the description thereof will be omitted.

As described above, according to the sixteenth embodiment, the simulator 41-i registered in the time synchronization block table is added or deleted according to the speed of simulation. The effect that the simulation can be executed with appropriate accuracy even when the progress is changed is obtained.

In the sixteenth embodiment, only the simulator is registered in the time synchronization block table. However, as shown in the twelfth, thirteenth and fourteenth embodiments, the data and / or the communication route are changed. You may make it register and rewrite them according to the progress speed of a simulation.

Embodiment 17. FIG. 40 is a block diagram showing a configuration example of a parallel distributed simulation system according to a seventeenth embodiment of the present invention.

In the figure, 26 is supplied with real time data from the real time management means 3, monitors the simulation state, and similarly when the event occurrence condition set by the event setting means 27 is satisfied. It is an event inputting means for inputting the set event to the simulation in the designated simulator 41-i via the communication means 5. Reference numeral 27 is an event setting means for setting an event to be thrown into the simulation and an event generation condition at the time of throwing the event. In addition,
The other components of FIG. 40 are the same as those according to the first embodiment, and the description thereof will be omitted.

Next, the operation will be described. The event setting unit 27 sets an event to be thrown into the simulation and an event generation condition when the event is thrown. The event generation condition is set based on the data (attribute) value, the event generation order, the state of each simulator 41-i, and the like.

The event input means 26 is supplied with the real time data from the real time management means 3 and monitors the simulation state (that is, the value of the attribute, etc.), and when the event occurrence condition is satisfied, the event The event set by the setting means 27 is input to the simulation in the designated simulator 41-i via the communication means 5.

Since the other processing is the same as that of the first embodiment, the description thereof will be omitted.

As described above, according to the seventeenth embodiment, since it is possible to input a predetermined event to the simulation, it is possible to easily perform verification of the actual machine (real-time system) at the prototype stage. The effect of being able to do is obtained.

That is, in the real-time system, the operation of the system may change depending on the elapsed time after the occurrence of a certain event. For example, in the case of a telephone, after the receiver is lifted, the input operation of the telephone number of the other party is accepted within a certain period of time, but thereafter, the call operation is changed. Therefore, when a predetermined event can be input at an arbitrary real time, such a real-time system prototype verification can be easily executed.

Eighteenth Embodiment 41 is a block diagram showing a configuration example of a parallel distributed simulation system according to the eighteenth embodiment of the present invention. The parallel distributed simulation system according to the eighteenth embodiment of the present invention is configured by connecting a plurality of parallel distributed simulation systems. Such a parallel distributed simulation system is used for executing a large-scale simulation that is difficult for a single parallel distributed simulation system to execute.

In the figure, 1G is a simulation manager in which the simulation manager 1A of the third embodiment is provided with a time notifying means 28 and a time adjusting means 29, and 1H is the simulation manager 1 of the first embodiment. And time adjustment means 29
Is a simulation manager.

In the simulation managers 1G and 1H, the reference numeral 28 indicates real time data when the logical time is forcibly advanced to other simulation managers 1G and 1H.
Is a time notification means (real time notification means) for notifying the
Reference numeral 9 is a time correction means (real time correction means) for correcting the real time data in the real time management means 3 based on the real time data notified by the other simulation managers 1G and 1H.

Since the other constituent elements in FIG. 41 are the same as those in the first and third embodiments, the description thereof will be omitted.

Next, the operation will be described. The real-time time progress management means 4 and the network-type real-time time progress management means 4A of each simulation manager 1G, 1H notify the logical time / data exchange management means 6 when the logical time is forcibly advanced. , And notifies the time notification means 28.

The time notifying means 28 notifies the other simulation managers 1G and 1H of the real time data when the logical time is forcedly advanced. The time correction means 29 of the other simulation managers 1G and 1H corrects the real time data in the real time management means 3 based on the real time data notified by the other simulation managers 1G and 1H. At this time, the time adjustment means 29 compares the notified real time with the real time by the real time management means 3, and when the notified real time is ahead of the real time by the real time management means 3, The real time data by the real time management means 3 is corrected to the notified real time.

On the other hand, if the notified real time is behind the real time by the real time management means 3, nothing is done. In this case, the real time in the simulation managers 1G and 1H notified of the real time is later than the real time in the simulation managers 1G and 1H notified of the real time, but eventually the other simulation managers 1G and 1H. It will be corrected when a more similar notification is received.

Note that each simulation manager 1
The other processes in B, 1D, 1G, and 1H are the same as those in the simulation managers 1B, 1D, 1A, and 1 according to the first and third embodiments, and the description thereof will be omitted.

As described above, according to the eighteenth embodiment, the simulation managers 1G and 1H synchronize their actual times with each other, so that one simulation manager manages the actual times of the other simulation managers. , When executing a large-scale simulation using a plurality of simulation managers and the communication speed with the predetermined simulation manager is slow, the predetermined simulation manager independently manages the actual time, By synchronizing the real time with the real time of the remaining simulation managers, even if there is a simulation manager with a slow communication speed, it is possible to perform the simulation along the same real time.

In the above embodiment, the number of simulators 41-1 to 41-4 is three or four.
The number of simulators is not limited to three or four. Further, each simulator may be configured by a computer, respectively, or a plurality of simulators may be configured by a single computer and the processes for a plurality of simulators may be executed in parallel by software. Furthermore, the connection form of the simulator is not limited to that shown in the figure, and any connection form may be used as long as it is possible to exchange messages.

[0252]

As described above, according to the present invention, the constraint condition for the relationship between the real time data and the logical time of the simulation is restricted when the relationship between the measured real time data and the logical time is not satisfied. Since the logical time is forcibly advanced or delayed at the time satisfying the condition, there is an effect that the progress of the logical time in the simulation can be always synchronized with the real time.

According to the present invention, when the logical time is forcibly advanced, the warning information is added to the data exchange message to be transmitted to the simulator before the logical time forcibly advanced. The data loss due to the forced progress of the logical time is reduced, and the simulation can be executed more accurately.

According to the present invention, instead of forcibly advancing the logical time of the simulator in which the relation between the real time data and the logical time does not satisfy the constraint condition, the simulator is an asynchronous simulator which is not synchronized with other simulators. When the relationship between the time data and the logical time of the asynchronous simulator satisfies the constraint conditions, the asynchronous simulator is configured to return to the simulator that synchronizes with other simulators. It is possible to set which of the progress and the accurate execution of the simulation is prioritized, and it is possible to appropriately set the progress synchronized with the real time of the simulation and the accuracy of the simulation.

According to the present invention, when a simulator whose relation between real time data and logical time does not satisfy the constraint condition is an asynchronous simulator, when the simulator belongs to a predetermined group, all the simulators belonging to the group are An asynchronous simulator that synchronizes all simulators belonging to a given group with other simulators when the relationship between the real-time data and the logical time of all simulators belonging to the group satisfies the constraint condition. Since it is configured to return to, the priority can be set for each of the groups of simulators, that is, the forced progress of the logical time or the accurate execution of the simulation, and the progress synchronized with the real time of the simulation can be set. Simulation positive There is an effect that it is possible to appropriately set the ri.

According to the present invention, priority is added to a message transmitted from each simulator to another simulator via the simulation manager, and when the simulation manager forcibly advances the logical time, the message is forcibly advanced. It was configured to search for the message with the highest priority among messages to be sent before the logical time, and to send only the messages above that message, so the progress of the logical time should be synchronized with the progress of the real time. At the same time, the exchange of important data is preferentially executed, and the simulation can be executed more accurately.

According to the present invention, in the data exchange message exchanged between simulators when the logical time is forcibly advanced, each data exchange is performed based on the priority set corresponding to the data. Determines the priority of the message, searches the data exchange message with the highest priority among the data exchange messages to be sent before the forced logical time, and sends only the data exchange message higher than the data exchange message. With this configuration, the progress of the logical time is synchronized with the progress of the real time, important data is exchanged preferentially, and the simulation can be executed more accurately.

According to the present invention, the data exchange message exchanged between the simulators when the logical time is forcedly advanced is based on the priority set corresponding to the communication route of the data exchange message. The priority of each data exchange message is determined from the communication path of each data exchange message, and the data exchange message having the highest priority among the data exchange messages to be transmitted before the forcibly advanced logical time is searched and the data is Since it is configured to send only the data exchange message higher than the exchange message, while synchronizing the progress of the logical time with the progress of the real time,
The exchange of important data is executed preferentially, and the simulation can be executed more accurately.

According to the present invention, when the logical time is forcibly advanced, the priority added to the message by each simulator and the priority set corresponding to the data of the data exchange message exchanged between the simulators. The priority of each data exchange message derived from each data based on the degree, and each derived from the communication route of each data exchange message based on the priority set corresponding to the communication route of the data exchange message An integrated priority is determined based on at least two priorities of the data exchange messages, and has the highest integrated priority among the data exchange messages to be transmitted before the logical time at which the forced progress has been made. , And configured to send only the data exchange message above that data exchange message. While synchronizing the progress of time to progression of the real time exchange of critical data is preferentially executed, there is an effect that the simulation can be more accurately perform the.

According to the present invention, when the relation between the real time data and the logical time of the predetermined simulator among the plurality of simulators does not satisfy the constraint condition, the simulation up to the logical time by the predetermined simulator is completed. After that, since it was configured to forcibly advance the logical time, it is possible to select which of the synchronization of the logical time to the actual time and the completion of processing has priority for each simulator. In such a case, the simulation can be executed more accurately.

According to the present invention, when the relation between the real time data and the logical time does not satisfy the constraint condition, when the data of the data exchange message is the predetermined data, the transmission of the data exchange message is executed. Later, because I configured to force the logical time to advance, it is possible to select whether to prioritize synchronization of the logical time to the actual time or completion of processing for each data exchanged between the simulators. For example, there is an effect that the simulation can be executed more accurately when evaluating a specific continuous quantity.

According to the present invention, when the relation between the real time data and the logical time does not satisfy the constraint condition, when the communication route of the data exchange message is the predetermined communication route, the transmission of the data exchange message is executed. After that, the logical time is configured to forcibly advance, so that it is possible to select whether to prioritize synchronization of the logical time to the actual time or completion of processing for each communication path of data exchange. The effect is that the simulation can be executed more accurately.

According to the present invention, when the relation between the real time data and the logical time does not satisfy the constraint condition, whether the simulator that does not satisfy the constraint condition is the predetermined simulator or not, and the data of the data exchange message. Is a predetermined condition, and at least two of the conditions whether the communication path of the data exchange message is a predetermined communication path are predetermined conditions,
Since the logical time is forcibly advanced after the transmission of the data exchange message is executed, it is possible to synchronize the logical time with the actual time for each simulator and for each data and communication path of the data exchange. It is possible to select which one of the processing completion is to be prioritized, and it is possible to execute the simulation more accurately.

According to the present invention, the value of the real time data is multiplied by a predetermined coefficient to control the progress of the real time based on the real time data. Therefore, for example, the progress speed appropriately set by the external device is set. There is an effect that the simulation can be executed.

According to the present invention, when the relation between the real time data and the logical time does not satisfy the constraint condition, whether the simulator that does not satisfy the constraint condition is the predetermined simulator or not, and the data of the data exchange message. Is a predetermined condition and at least one condition of whether the communication path of the data exchange message is a predetermined communication path, and a predetermined coefficient for controlling the progress of the actual time. Based on this, it is determined whether or not to execute transmission of each data exchange message, and after the data exchange message that is determined to be transmitted is transmitted, the logical time is forcibly advanced. There is an effect that the simulation can be executed with appropriate accuracy even when the time progress is changed.

According to the present invention, the event input means for inputting a predetermined event into a simulation in a predetermined simulator at a predetermined specified real time is provided, so that the verification of the real machine at the prototype stage is easily executed. The effect is that you can.

According to the present invention, a plurality of simulation managers divide and manage a plurality of simulators,
When forcibly advancing the logical time, one predetermined simulation manager instructs the simulator managed by itself to forcibly advance the logical time, and
It is configured to instruct other simulation managers to forcibly advance the logical time to the simulators managed by those simulation managers, so even when executing a large-scale simulation using multiple simulation managers. There is an effect that the simulation can be advanced at the logical time synchronized with the real time.

According to the present invention, a plurality of simulation managers divide and manage a plurality of simulators,
Real time notification means for notifying a predetermined simulation manager of the real time data when forcibly advancing the logical time, and real time management based on the real time data notified by the other simulation manager Since it is configured to include a real time correction means for correcting real time data by means, one simulation manager manages the real time of another simulation manager, and a large-scale simulation is performed using a plurality of simulation managers. When executing, when the communication speed with a given simulation manager is slow, the given simulation manager independently manages the actual time and synchronizes the actual time with the actual time of the remaining simulation managers. Due to Be present slow simulation manager of baud rate, there is an effect that it is possible to advance the simulation along the same real time.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration example of a parallel distributed simulation system according to a first embodiment of the present invention.

FIG. 2 is a diagram showing an example of constraint conditions by a real-time time condition setting means.

FIG. 3 is a flowchart illustrating a process of determining whether or not a logical time can be advanced by a real-time time progress management unit.

FIG. 4 is a flowchart illustrating a process of determining whether or not a logical time can be forcibly advanced by a real-time time progress management unit.

FIG. 5 is a diagram showing a specific example of a process for forcibly advancing a logical time.

FIG. 6 is a diagram illustrating the operation of each simulator.

FIG. 7 is a diagram showing a first example of constraint conditions by the real-time time condition setting means in the parallel distributed simulation system according to the second embodiment.

FIG. 8 is a diagram showing a second example of constraint conditions by the real-time time condition setting means in the parallel distributed simulation system according to the second embodiment.

FIG. 9 is a diagram showing a third example of constraint conditions by the real-time time condition setting means in the parallel distributed simulation system according to the second embodiment.

FIG. 10 is a block diagram showing a configuration example of a parallel distributed simulation system according to a third embodiment of the present invention.

FIG. 11 is a block diagram showing a configuration example of a parallel distributed simulation system according to a fourth embodiment of the present invention.

FIG. 12 is a flowchart illustrating a process of determining whether or not a logical time can be forcibly advanced by a real-time time progress management unit.

FIG. 13 is a block diagram showing a configuration example of a parallel distributed simulation system according to a fifth embodiment of the present invention.

FIG. 14 is a flowchart illustrating processing when the relationship between logical time and real time data does not satisfy the constraint condition.

FIG. 15 is a flowchart illustrating a process of monitoring a simulator that has moved asynchronously.

FIG. 16 is a diagram showing an example of a list of simulators that synchronize logical times with each other.

FIG. 17 is a diagram showing an example of a simulator synchronous / asynchronous switching table indicating the synchronous / asynchronous state of each simulator, the availability of state transition, and the like.

FIG. 18 is a diagram illustrating a process when shifting the state of the simulator to the asynchronous state.

FIG. 19 is a diagram showing another example of a list of simulators that synchronize logical times with each other.

FIG. 20 is a diagram showing another example of the simulator synchronous / asynchronous switching table.

FIG. 21 is a diagram illustrating monitoring of a simulator in an asynchronous state.

[Fig. 22] Fig. 22 is a diagram for describing processing when shifting the state of the simulator to the synchronous state.

FIG. 23 is a block diagram showing a configuration example of a parallel distributed simulation system according to a sixth embodiment of the present invention.

24 is a diagram showing an example of a simulation synchronous / asynchronous switching table used in the simulation manager of FIG.

FIG. 25 is a block diagram showing a configuration example of a parallel distributed simulation system according to a seventh embodiment of the present invention.

FIG. 26 is a diagram showing an example of a message table.

FIG. 27 is a block diagram showing a configuration example of a parallel distributed simulation system according to an eighth embodiment of the present invention.

FIG. 28 is a diagram showing an example of an attribute priority table.

FIG. 29 is a block diagram showing a configuration example of a parallel distributed simulation system according to a ninth embodiment of the present invention.

FIG. 30 is a diagram showing an example of a route priority table.

FIG. 31 is a block diagram showing a configuration example of a parallel distributed simulation system according to a tenth embodiment of the present invention.

FIG. 32 is a block diagram showing a configuration example of a parallel distributed simulation system according to an eleventh embodiment of the present invention.

FIG. 33 is a flowchart illustrating a process of determining whether or not to forcibly advance a logical time according to the eleventh embodiment.

FIG. 34 is a block diagram showing a configuration example of a parallel distributed simulation system according to a twelfth embodiment of the present invention.

FIG. 35 is a block diagram showing a configuration example of a parallel distributed simulation system according to a thirteenth embodiment of the present invention.

FIG. 36 is a block diagram showing a configuration example of a parallel distributed simulation system according to a fourteenth embodiment of the present invention.

FIG. 37 is a block diagram showing a configuration example of a parallel distributed simulation system according to a fifteenth embodiment of the present invention.

FIG. 38 is a block diagram showing an application example of the parallel distributed simulation system according to the fifteenth embodiment of the present invention.

FIG. 39 is a block diagram showing a configuration example of a parallel distributed simulation system according to the sixteenth embodiment of the present invention.

FIG. 40 is a block diagram showing a configuration example of a parallel distributed simulation system according to a seventeenth embodiment of the present invention.

FIG. 41 is a block diagram showing a configuration example of a parallel distributed simulation system according to the eighteenth embodiment of the present invention.

FIG. 42 is a block diagram showing an example of a parallel distributed simulation system configured based on HLA.

43 is a block diagram showing an example of a parallel distributed simulation system to which the parallel distributed simulation system of FIG. 42 is applied and which advances the time in the simulation in synchronization with the time advance in real time.

[Explanation of symbols]

1, 1A to 1H Simulation manager, 2 Real time time condition setting means (constraint condition setting means), 3
Real time management means, 4 Real time time progress management means (time progress management means), 4A, 4B Network type real time time progress management means (time progress management means), 4
C real-time time progress management means (time progress management means, first time progress stopping means, time progress stopping means), 4
D real time time progress management means (time progress management means, second time progress stop means), 4E real time time progress management means (time progress management means, third time progress stop means), 4F real time time progress management means (time Progress management means, integrated time progress stop means), 5,5A communication means (message transmission means), 6 logical time / data exchange management means (time progress management means), 8 warning information addition means, 9 simulator synchronous / asynchronous switching means 10 grouping simulator synchronous / asynchronous switching means (simulator synchronous / asynchronous switching means) 11 message priority order delivery means (first message priority selecting means) 13
Attribute priority order delivery means (second message priority selection means), 14 inter-simulator priority order delivery means (third message priority selection means), 15 integrated priority selection means (integrated priority calculation means), 16A message Priority determining means (integrated priority calculating means), 16B Attribute priority determining means (integrated priority calculating means), 16C Inter-simulator priority determining means (integrated priority calculating means), 17 Integrated priority order delivery means (message Integrated priority means), 18 time synchronization block control means (first time advance / stop means, stop determination means for each advance speed), 18A time synchronization block control means (second time advance / stop means), 18B time synchronization block control means (Third time progress stopping means), 18C
Time synchronization block control means (integrated time progress stop means),
19 time synchronization block table storage (progress speed stop determination means), 24 real time progress control means, 25 speed block designation means (progress speed stop determination means), 26
Event inputting means, 28 time notifying means (actual time notifying means), 29 time adjusting means (actual time adjusting means), 41
-1 to 41-4 Simulator.

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) G06F 15/16 G06F 19/00 G06F 11/00

Claims (19)

(57) [Claims] 1. In a parallel distributed simulation system for executing a predetermined simulation while exchanging data with a plurality of simulators, real time management means for measuring real time and outputting as real time data, the real time data, and Constraint condition setting means for setting a constraint condition for the relationship with the logical time of simulation by the simulator, and if the relationship between the real time data by the real time management means and the logical time does not satisfy the constraint condition, the constraint condition is set. Time progress management means for instructing the simulator to advance the logical time after forcibly advancing or delaying the logical time at a satisfactory time, and a message and each simulator instructing the progress of the logical time. To send the data exchange message from Parallel Distributed Simulation system characterized in that it comprises a simulation manager with sage transmission means. 2. A warning information adding means for adding warning information to a data exchange message to be transmitted to the simulator before the logical time forcedly advanced when the logical time is forcedly advanced by the time progress management means. The parallel distributed simulation system according to claim 1, characterized in that: 3. An asynchronous simulator that does not synchronize with other simulators instead of forcibly advancing the logical time of a simulator in which the relationship between the real time data and the logical time by the real time management means does not satisfy the constraint condition, Simulator synchronization / asynchronous switching for restoring the asynchronous simulator to a simulator synchronized with the other simulator when the relation between the real time data by the real time management means and the logical time of the asynchronous simulator satisfies the constraint condition The parallel distributed simulation system according to claim 1 or 2, wherein the means is provided in a simulation manager. 4. The simulator synchronous / asynchronous switching means,
When the simulator in which the relationship between the real time data by the real time management means and the logical time does not satisfy the constraint condition is an asynchronous simulator, when the simulator belongs to a predetermined group, all the simulators belonging to the group are regarded as asynchronous simulators. When the relation between the real time data by the real time management means and the logical time of all the simulators belonging to the group satisfies the constraint condition, all the simulators belonging to the predetermined group are transferred from the asynchronous simulator. The parallel distributed simulation system according to claim 3, wherein the simulator is restored to a simulator synchronized with another simulator. 5. Each simulator adds a priority to a message to be transmitted to another simulator via a simulation manager, and the simulation manager is forced to proceed when logical time is forcedly advanced by the time progress management means. Message having the highest priority among the messages to be transmitted before the logically progressing logical time, and only the message higher than the message is set as the message to be transmitted by the message transmitting means. The parallel distributed simulation system according to any one of claims 1 to 4, further comprising a selection unit. 6. A data exchange message exchanged between simulators when a logical time is forcibly advanced by a time progress management means, from each data to each data based on a priority set corresponding to the data. Determines the priority of the exchange message, searches the data exchange messages with the highest priority among the data exchange messages to be sent before the logical time at which the forced progress has been made, and searches only the data exchange messages higher than the data exchange message. The parallel distributed simulation system according to any one of claims 1 to 4, further comprising: second message priority selecting means for setting the data exchange message transmitted by the message transmitting means. 7. A data exchange message exchanged between simulators when a logical time is forcibly advanced by a time progress management means, based on a priority set corresponding to a communication route of the data exchange message. Then, the priority of each data exchange message is determined from the communication path of each data exchange message, and the data exchange message having the highest priority among the data exchange messages to be transmitted before the forcibly advanced logical time is searched, Thirdly, only the data exchange message higher than the data exchange message is set as the data exchange message transmitted by the message transmitting means.
The parallel distributed simulation system according to any one of claims 1 to 4, further comprising: 8. The priority added to a message by each simulator when the logical time is forcibly advanced by the time progress management means, and the data exchange message exchanged between the simulators is set corresponding to the data. Derived from the communication path of each data exchange message based on the priority of each data exchange message derived from each data based on the priority, and the priority set corresponding to the communication path of the data exchange message The integrated priority calculating means for determining the integrated priority based on at least two of the priorities of the respective data exchange messages, and the highest priority among the data exchange messages to be transmitted before the forcibly advanced logical time. A message having a higher integration priority is searched for, and a data exchange message higher than the data exchange message is searched. The Jinomi claim from claim 1, characterized in that it comprises a message integration priority means that the data exchange message sent by the message transmission means 4
The parallel distributed simulation system according to claim 1. 9. Real time data by the real time management means,
When the relationship with the logical time of a predetermined simulator among the plurality of simulators does not satisfy the constraint condition, the time progress management means is controlled to complete the logical time after the simulation up to the logical time by the predetermined simulator is completed. 9. The parallel distributed simulation system according to claim 1, further comprising a first time advance / stop means for forcibly advancing. 10. When the relation between the real time data and the logical time by the real time management means does not satisfy the constraint condition, when the data of the data exchange message is a predetermined data, the transmission of the data exchange message is executed. 9. The second time progress stop means for controlling the time progress management means to forcibly advance the logical time after the completion of the operation, according to any one of claims 1 to 8. Parallel distributed simulation system. 11. When the relationship between the real time data and the logical time by the real time management means does not satisfy the constraint condition, and when the communication path of the data exchange message is a predetermined communication path, the data exchange message is transmitted. 9. A third time advance / stop means for controlling the time advance management means to forcibly advance the logical time after the execution is executed, and the third time advance / stop means is provided. The parallel distributed simulation system described. 12. When the relationship between the real time data and the logical time by the real time management means does not satisfy the constraint condition, the condition whether the simulator that does not satisfy the constraint condition is a predetermined simulator, a data exchange message. If at least two conditions out of the condition of whether the data of the above is a predetermined one and the condition of whether the communication path of the data exchange message is the predetermined communication path are the predetermined conditions, 9. The integrated time advance / stop means for controlling the time advance management means to forcibly advance the logical time after executing the transmission of the data exchange message is provided. The parallel distributed simulation system according to claim 1. 13. The real time progress control means for controlling the progress of the real time based on the real time data by multiplying the value of the real time data by the real time management means by a predetermined coefficient. The parallel distributed simulation system according to claim 12. 14. Real time progress control means for controlling the progress of the real time based on the real time data by multiplying the value of the real time data by the real time management means by a predetermined coefficient, and the real time data by the real time management means. And the logical time do not satisfy the constraint condition, the condition that the simulator not satisfying the constraint condition is a predetermined simulator, the condition whether the data of the data exchange message is a predetermined condition And transmitting each data exchange message based on at least one of the conditions of whether the communication path of the data exchange message is a predetermined communication path and the predetermined coefficient for controlling the progress of the real time. And a relationship between the real time data by the real time management means and the logical time determines the constraint condition. If not, the time progress management unit controls the time progress management unit after the data exchange message determined to be transmitted by the progress speed stop determination unit is executed, and the logical time is forcibly advanced. The parallel distributed simulation system according to any one of claims 1 to 4, further comprising stop means. 15. An event inputting means for inputting a predetermined event to a simulation in a predetermined simulator at a predetermined specified real time is provided.
15. The parallel distributed simulation system according to claim 14. 16. A plurality of simulation managers divides and manages a plurality of simulators, and a predetermined one of the simulation managers manages itself when logical time is forcibly advanced. 2. The simulator is instructed to forcibly advance the logical time, and the other simulation managers are instructed to instruct the simulators managed by those simulation managers to forcibly advance the logical time. The parallel distributed simulation system according to claim 15. 17. A real time notification for notifying other simulation managers of real time data when a plurality of simulation managers divides and manages a plurality of simulators and a predetermined simulation manager forcibly progresses a logical time. 17. Means, and real time correction means for correcting the real time data by the real time management means based on the real time data notified by another simulation manager. The parallel distributed simulation system according to any one of 1. 18. A real time management means for measuring real time and outputting real time data in a simulation manager for controlling time progress of simulation in a parallel distributed simulation system for executing a predetermined simulation by a plurality of simulators, The constraint condition setting means for setting a constraint condition for the relation between the real time data and the simulation logical time by the simulator, and the relation between the real time data by the real time management means and the logical time does not satisfy the constraint condition. In this case, after forcibly advancing or delaying the logical time at a time satisfying the constraint condition, time progress management means for instructing the simulator to advance the logical time, and advancing the logical time. Instructed messages and data from each simulator Simulation manager, characterized in that it comprises a message transmission means for transmitting an exchange messages to other simulators. 19. In a parallel distributed simulator control method for controlling each simulator when executing a predetermined simulation with a plurality of simulators, a step of measuring real time and making it real time data, said real time data, and If the relationship between the measured real time data and the logical time is not satisfied, the constraint condition for the relationship with the logical time of the simulation by the simulator is forcibly advanced to the logical time at a time that satisfies the constraint condition or A step of delaying, a step of instructing the simulator to progress the logical time, and a step of transmitting a message instructing the progress of the logical time or a data exchange message from each simulator to another simulator. Parallel distributed simulator control method characterized by.