JP2006072880A - Information processing method, information processing program, and information processing system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information processing system and the like capable of preventing waste of time in occurrence of an abnormal condition in the middle of operation of information processing. <P>SOLUTION: This information processing system 1 is provided with information processors 11-14 and a storage device 15. The information processors 11-14 share execution of a plurality of information processing operations between them. When one of the information processors 12-14 causes an abnormal event, the information processing device 11 makes another information processor perform information processing carried out by the information processor causing the abnormal event. If the information processor 11 causes an abnormal event, the information processors 12-14 carry out management of another information processor as a substitute for the information processor 11. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an information processing method in which a plurality of information processing apparatuses share and execute a plurality of information processing. Furthermore, the present invention relates to such an information processing program and information processing system.

  Since logic simulation or the like in the design process of a semiconductor integrated circuit requires a large number of operations, if it is executed by one information processing apparatus, the execution time becomes very long. For this reason, conventionally, a plurality of information processings constituting such a logic simulation or the like are shared by a plurality of information processing apparatuses and executed.

  In this way, when logic simulation or the like is shared by a plurality of information processing devices and executed, any one of the information processing devices (for example, hardware failure, software failure (falling into an infinite loop, etc.)) Etc.) occurs during the execution of information processing, the plurality of information processing apparatuses cannot recognize the fact that an abnormality has occurred. And after the completion of all information processing, the operator (human) recognizes the fact that an abnormality has occurred, corrects the information processing apparatus in which a failure has occurred, or disconnects the information processing apparatus in which an abnormality has occurred, The logic simulation was re-executed. That is, when an abnormality occurs during the execution of a logic simulation or the like, the logic simulation or the like cannot be re-executed immediately after the occurrence of the abnormality, and time is wasted.

  Further, even when an abnormality occurs in any one of the plurality of information processing apparatuses, the entire logic simulation or the like must be re-executed, and the information processing of the plurality of information processing constituting the logic simulation or the like must be performed. The result of information processing that ended normally could not be used effectively and was wasted.

By the way, a plurality of stations are connected via a transmission line, and each station includes a control device that performs predetermined control and a communication control device connected to the control device, and forms a logical ring between the communication control devices. In the communication control device of the network system in which the transmission right is sequentially transferred and only the communication control device that has acquired the transmission right performs data transmission, the communication control device includes an interface unit that receives a request from its own control device, And a control unit that forms a logical ring and controls transmission of the transmission right, and the interface unit has an identification unit that identifies an operation state of the communication control device when a reset request is received from the control device. And a communication control device that resets the control means only when the operation state of the communication control device is faulty when a reset request is received from the control device. Is (e.g., see Patent Document 1).
The communication control device disclosed in Patent Document 1 resets the communication control device without leaving the logical ring if the control device in which the failure has occurred attempts to reset the communication control device if the communication control device is operating normally. However, a plurality of information processing apparatuses do not share and execute a plurality of information processing.

JP 11-177594 A

  Therefore, in view of the above points, an object of the present invention is to provide an information processing method capable of preventing time and the like from being wasted when an abnormality occurs during the execution of information processing. Furthermore, an object of this invention is to provide such an information processing program and information processing system.

  In order to solve the above problems, an information processing method according to the present invention includes a step (a) in which a plurality of information processing devices share and execute a plurality of information processing, and one of the plurality of information processing devices. A step (b) in which the information processing device detects whether or not an abnormality has occurred in another information processing device of the plurality of information processing devices; and one information processing device in the plurality of information processing devices, When an abnormality occurs in one of the other information processing apparatuses among the plurality of information processing apparatuses, the information processing shared by the information processing apparatus in which the abnormality has occurred among the plurality of information processing apparatuses The step (c) for sharing information processing devices other than the information processing device in which an abnormality has occurred in the processing device with another information processing device among the plurality of information processing devices being one of the plurality of information processing devices. Check whether an abnormality occurred in one information processing device. Step (d), and when another information processing apparatus among the plurality of information processing apparatuses has an abnormality in one information processing apparatus, And (e) executing steps (b) and (c) in place of the one information processing apparatus.

Here, one information processing device among the plurality of information processing devices creates first data including the first group of information to be updated at a predetermined timing by the plurality of information processing devices and stores the first data in the storage device. Step (f) for storing, and information to be updated by one information processing device of the plurality of information processing devices in the first group of information from one information processing device of the plurality of information processing devices (G) for updating the information at a predetermined timing, and another information processing device of the plurality of information processing devices is operated by another information processing device of the plurality of information processing devices in the first group of information. A step (h) of updating information to be updated at a predetermined timing, wherein step (b) is performed when one information processing device of the plurality of information processing devices Other information processing devices in the other Step (d) of detecting that an abnormality has occurred in another information processing device among the plurality of information processing devices when the information to be updated by the information processing device has not been updated for a predetermined time or more. However, the information to be updated by one information processing device in the plurality of information processing devices in the first group of information in the other information processing devices in the plurality of information processing devices is updated for a predetermined time or more. If not, it may be a step of detecting that an abnormality has occurred in one information processing apparatus among the plurality of information processing apparatuses.
Further, the information of the first group may be information representing time updated by a plurality of information processing apparatuses.

  Further, in the step (f), one information processing apparatus among the plurality of information processing apparatuses is one information processing apparatus among the plurality of information processing apparatuses or a plurality of information processing apparatuses. Creating a first data further including a second group of information each representing whether the information processing apparatus is another information processing apparatus, and storing the first data in the storage device, wherein step (b) includes a plurality of information processing processes. One information processing device in the device refers to the second group of information to identify another information processing device in the plurality of information processing devices, and further includes a plurality of information processing in the first group of information. Information to be updated by another information processing apparatus in the apparatus is specified, and information to be updated by other information processing apparatuses in the plurality of information processing apparatuses in the first group of information is equal to or longer than a predetermined time. If it has not been updated, multiple information processing devices Is a step of detecting that an abnormality has occurred in another information processing apparatus, and step (d) refers to information of the second group by another information processing apparatus of the plurality of information processing apparatuses. In this manner, one information processing device of the plurality of information processing devices is specified, and information to be updated by one information processing device of the plurality of information processing devices in the first group of information is specified, One information processing of the plurality of information processing devices when information to be updated by one information processing device of the plurality of information processing devices in the first group of information has not been updated for a predetermined time or more. It may be a step of detecting that an abnormality has occurred in the apparatus.

  Step (f) further includes a third group of information, in which one information processing device among the plurality of information processing devices further represents a progress status of information processing shared by the plurality of information processing devices. And a step (i) of updating information of the third group when the information processing shared by the plurality of information processing devices is completed, One information processing apparatus monitors the progress of information processing shared by the plurality of information processing apparatuses by referring to the information of the third group, and the plurality of information processing apparatuses share the information processing apparatus. In the case where all the information processing is completed, a step (j) of combining the processing results of the information processing shared by the plurality of information processing devices may be further provided.

  In addition, one information processing apparatus among the plurality of information processing apparatuses creates second data including information of the fourth group that represents information processing shared by the plurality of information processing apparatuses, and stores the second data in the storage device. A step (k) of storing, and in step (c), one of the information processing devices in the plurality of information processing devices is abnormal in one of the other information processing devices in the plurality of information processing devices. When an error occurs, the information processing that was shared by the information processing apparatus in which the abnormality occurred among the plurality of information processing apparatuses is identified by referring to the information in the fourth group, and the identified information processing is performed as the plurality of information. The information processing apparatus other than the information processing apparatus in which an abnormality has occurred in the processing apparatus may be assigned to the information processing apparatus and the fourth group information may be updated.

  An information processing program according to the present invention includes a procedure (a) for sharing and executing a plurality of information processing in a plurality of information processing devices, and a plurality of information processing devices in one information processing device among the plurality of information processing devices. In the procedure (b) for detecting whether or not an abnormality has occurred in another information processing apparatus among the information processing apparatuses, and in one information processing apparatus among the plurality of information processing apparatuses, When an abnormality occurs in any of the other information processing devices, the information processing that was shared by the information processing devices in which the abnormality occurred in the plurality of information processing devices In the procedure (c) to be shared by the information processing apparatuses other than the information processing apparatus in which the error occurred and in another information processing apparatus among the plurality of information processing apparatuses, an abnormality occurs in one information processing apparatus among the plurality of information processing apparatuses Check whether or not If an abnormality occurs in one information processing device among the plurality of information processing devices in the procedure (d) and other information processing devices among the plurality of information processing devices, A plurality of information processing devices are caused to execute the procedure (e) for executing the steps (b) and (c) instead of the one information processing device.

  The information processing system according to the present invention is a system including a plurality of information processing devices, and the plurality of information processing devices share and execute a plurality of information processing, One information processing apparatus detects whether or not an abnormality has occurred in another information processing apparatus among the plurality of information processing apparatuses, and an abnormality has occurred in any of the other information processing apparatuses in the plurality of information processing apparatuses. When an error occurs, the information processing that was shared by the information processing apparatus in which the abnormality occurred in the plurality of information processing apparatuses was transferred to the information processing apparatus other than the information processing apparatus in which the abnormality occurred in the plurality of information processing apparatuses. The other information processing device among the plurality of information processing devices detects whether or not an abnormality has occurred in one information processing device of the plurality of information processing devices. When an abnormality occurs in one information processing device Instead of one information processing device among a plurality of information processing devices, it detects whether or not an abnormality has occurred in another information processing device among the plurality of information processing devices. When an abnormality occurs in any of the other information processing devices, the information processing that was shared by the information processing device in which the abnormality occurred in the plurality of information processing devices occurred. The information processing device other than the information processing device that has been assigned is assigned.

The best mode for carrying out the present invention will be described below with reference to the drawings.
FIG. 1 is a diagram showing an information processing system according to an embodiment of the present invention. In FIG. 1, the information processing system 1 includes information processing devices 11 to 14 and a storage device 15, and these information processing devices 11 to 14 and the storage device 15 can exchange data and the like with each other. It is.

The information processing system 1 is a system for the information processing apparatuses 11 to 14 to share and execute a plurality of information processing. Here, as an example, the information processing apparatuses 11 to 14 share and execute a plurality of information processing (in this case, information processing a to e) for realizing logic simulation in the design process of the semiconductor integrated circuit, respectively. It shall be.
The information processing device 11 is a master device for managing the other information processing devices 12 to 14, and the information processing devices 12 to 14 are slave devices managed by the information processing device 11. And

FIG. 2 is a flowchart showing the operation of the master device (here, the information processing device 11), and FIG. 3 is a flowchart showing the operation of the slave devices (here, the information processing devices 12 to 14). Hereinafter, operations of the information processing apparatuses 11 to 14 will be described with reference to FIGS. 2 and 3.
When the operation shown in FIG. 2 is started, the master device creates job monitor data and slave data and stores them in the storage device 15 (step S11).

  Here, the job monitor data is data for monitoring the operation status of the information processing apparatuses 11 to 14, and FIG. 4 is a diagram illustrating an example of the job monitor data. In FIG. 4, the job monitor data is a table having first to fourth records, and the first to fourth records have a plurality of fields for storing information on the operation status of the information processing apparatuses 11 to 14. Respectively. Specifically, each record is shared by the information processing devices 11 to 14 in a first field for storing information indicating whether the information processing devices 11 to 14 are master devices or slave devices. A second field for storing information indicating the progress status of the process (for example, “before process start”, “processing in progress”, “process end”, etc.), and a third field for storing information indicating time Have The time in the third field is updated by the information processing apparatuses 11 to 14 at predetermined time intervals, as will be described later. Therefore, when the third field has not been updated for a predetermined time or more, there is some abnormality (for example, hardware failure, software failure (falling into an infinite loop, etc.), etc.) in the information processing apparatuses 11-14. It can be determined that it occurred.

The slave data is data for representing the information processing shared by the information processing apparatuses 11 to 14, and FIG. 5 is a diagram illustrating an example of the slave data. In FIG. 5, slave data is a table having first to fourth records, and the first to fourth records store information representing information processing shared by the information processing apparatuses 11 to 14. Each has a field for 5, the information processing device 11 performs the information processing a, the information processing device 12 the information processing b, the information processing device 13 the information processing c, the information processing device 14 the information processing d, and the information e. Each of which is shared. By referring to the slave data, it is possible to specify the information processing shared by the information processing apparatuses 11 to 14.
Here, the information processing apparatus 11 is supposed to share the information processing a, but the information processing apparatus 11 is dedicated to managing the other information processing apparatuses 12 to 14 as a master apparatus, and the information processing a to e. It is good also as not sharing any of these.

Referring to FIG. 2 again, the master device starts the shared information processing (in this case, information processing a), updates the second field of the job monitor data to “processing in progress”, and sends it to the slave device. An operation start is instructed (step S12). At this time, the master device may transmit design data, a program, and the like of the semiconductor integrated circuit necessary for the information processing b to e to the slave device, or the semiconductor integrated circuit necessary for the information processing b to e. Design data, programs, and the like may be stored in the storage device 15.
As a result, the slave device starts the process shown in FIG. 3 and updates the second field of the job monitor data to “processing in progress”. FIG. 6 is a diagram showing an example of job monitor data at this time. The operation of the slave device will be described later in detail.

  Next, the master device monitors the slave device by monitoring the third field of the record (here, the second to fourth records) in which the first field in the job monitor data is “slave”. As will be described later, the time in the third field of the second to fourth records of the job monitor data is updated by the information processing apparatuses 12 to 14 at predetermined time intervals. Therefore, when the third field of the second to fourth records has not been updated for a predetermined time or more, it can be determined that some abnormality has occurred in the slave device. When the master device determines that an abnormality has occurred in any of the slave devices (step S13), the master device identifies the process shared by the slave device in which the abnormality has occurred with reference to the slave data, and the abnormality has occurred. The processing shared by the slave device is shared with other information processing devices, and the job monitor data and slave data are updated (step S14). Note that the master device may share the processing shared by the slave device in which an abnormality has occurred, or may be shared by another slave device. Here, it is assumed that an abnormality occurs in the information processing apparatus 12 and the information processing apparatus 11 causes the information processing apparatus 13 to share the processing that the information processing apparatus 12 has shared. 7 and 8 are diagrams showing examples of job monitor data and slave data at this time.

Next, when the shared information processing (in this case, information processing a) is completed (step S15), the master device sets the second field of the first record in the job monitor data to “end processing”. Update (step S16).
When the predetermined time has elapsed (step S17), the master device updates the time in the third field of the first record in the job monitor data (step S20).

  Then, the master device refers to the second field of the first to fourth records in the job monitor data, and if the processing of all the information processing devices has not been completed (step S19), the processing proceeds to step S13. When the processing of all the information processing devices is completed, the processing results of all the information processing devices are combined (step S20), and the operation is terminated.

On the other hand, when the slave device receives an operation start instruction from the master device (see step S12), the slave device starts the operation shown in FIG.
When the operation shown in FIG. 3 is started, the slave device starts the information processing being shared and updates the second fields of the second to fourth records in the job monitor data to “processing in progress” (FIG. 4). (Refer to step S31).

  Then, the slave device starts monitoring the master device by monitoring the third field of the record (here, the first record) in which the first field of the job monitor data is “master”. As described above, the time in the third field of the first record of the job monitor data is updated at predetermined time intervals by the information processing apparatus 11 (see step S18 in FIG. 2). Therefore, when the third field of the first record of the job monitor data has not been updated for a predetermined time or more, it can be determined that some abnormality has occurred in the information processing apparatus 11.

When the slave device refers to the third field of the first record of the job monitor data and determines that an abnormality has occurred in the master device (step S32), a new master responsible for the management processing performed by the master device. At the same time, the job monitor data and slave data are rewritten (step S33). Any one of the information processing devices 12 to 14 may be a new master device, but the information processing device that has detected the earliest that the information processing device 11 of the information processing devices 12 to 14 has malfunctioned. Is preferably a new master device. Here, it is assumed that the information processing device 13 becomes a new master device. In addition, the information processing device 13 that is a new master device may share the information processing a that the information processing device 11 has shared, or another information processing device (in this case, the information processing device 14). The information processing a may be shared. Here, it is assumed that the information processing apparatus 14 shares the information processing a shared by the information processing apparatus 11. 9 and 10 are diagrams showing examples of job monitor data and slave data at this time.
Then, the new master device (in this case, the information processing device 13) branches to step S13 (see FIG. 2) and operates as a master device.

Next, when a predetermined time has elapsed (step S35), the slave device updates the time of the third field in the job monitor data (step S36).
The slave device returns the process to step S32 if the shared information processing has not been completed (step S37), and if the shared processing has been completed, notifies the job monitor data. Is written in the second field (step S38), and the operation is terminated.

  As described above, according to the information processing system 1, when an abnormality occurs in a slave device, the master device shares the information processing shared by the slave device in which the abnormality occurs with other information processing devices. Can be made. In addition, when an abnormality occurs in the master device, any of the slave devices can take over the management process performed by the master device and become a new master device. In this way, even when an abnormality occurs in one of the information processing apparatuses during the execution of the logic simulation, the information processing shared by the information processing apparatus in which the abnormality has occurred is shared with other information processing apparatuses. It is possible to prevent waste of time. In addition, when an abnormality occurs in any one of the plurality of information processing apparatuses, it is not necessary to re-execute the entire logic simulation or the like, and waste can be prevented.

The information processing system 1 may be realized as a computer 21 having a plurality of CPUs (Central Processing Units) as shown in FIG.
In FIG. 11, CPUs 22 to 25, a memory 26, and a graphic accelerator 28 are connected via a north bridge 27, and the graphic accelerator 28 is connected to a display unit 29. A south bridge 31 is connected to the north bridge 27, and an input unit 30 is connected to the south bridge 31. The south bridge 31 has a SCSI (Small Computer System Interface) bus, and an HDD (Hard Disc Drive) 32, an optical drive 33, and a network interface 34 are connected to the SCSI bus. The HDD 32 stores an operating system program, various device drivers, a logic simulation program in the design process of the semiconductor integrated circuit, and the like, and the CPUs 22 to 25 execute these programs. The CPUs 22 to 25 in FIG. 11 correspond to the information processing apparatuses 11 to 14 in FIG. 1, and the memory 26 and / or the HDD 32 in FIG. 11 correspond to the storage device 15 in FIG.

Further, the information processing system 1 may be realized as a distributed processing system 41 in which a plurality of computers and file servers as shown in FIG. 12 are connected via a network.
In FIG. 12, computers 42 to 45 and a file server 46 are connected via a network. 12 corresponds to the information processing apparatuses 11 to 14 in FIG. 1, and the file server 46 in FIG. 12 corresponds to the storage device 15 in FIG.

  The present invention can be used in an information processing method in which a plurality of information processing apparatuses share and execute a plurality of information processing. Further, the present invention can be used in such an information processing program and information processing system.

The figure which shows the structure of the information processing system which concerns on one Embodiment of this invention. The flowchart which shows operation | movement of the information processing apparatus 11 of FIG. The flowchart which shows operation | movement of the information processing apparatuses 12-14 of FIG. The figure which shows an example of the job monitor data memorize | stored in the memory | storage device 15 of FIG. The figure which shows an example of the slave data memorize | stored in the memory | storage device 15 of FIG. The figure which shows an example of the job monitor data memorize | stored in the memory | storage device 15 of FIG. The figure which shows an example of the job monitor data memorize | stored in the memory | storage device 15 of FIG. The figure which shows an example of the slave data memorize | stored in the memory | storage device 15 of FIG. The figure which shows an example of the job monitor data memorize | stored in the memory | storage device 15 of FIG. The figure which shows an example of the slave data memorize | stored in the memory | storage device 15 of FIG. The figure which shows the structure of the computer as one Example of this invention. The figure which shows the structure of the distributed processing system as one Example of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Information processing system, 11-14 Information processing apparatus, 15 Storage device, 21 Computer, 22-25 CPU, 26 Memory, 32 HDD, 41 Distributed processing system, 42-45 Computer, 46 File server

Claims (8)

A step (a) in which a plurality of information processing devices share and execute a plurality of information processing;
A step (b) in which one information processing device of the plurality of information processing devices detects whether or not an abnormality has occurred in another information processing device of the plurality of information processing devices;
When an abnormality occurs in any one of the plurality of information processing devices, the information processing device among the plurality of information processing devices A step (c) of sharing information processing shared by the information processing apparatus in which the abnormality has occurred with an information processing apparatus other than the information processing apparatus in which the abnormality has occurred in the plurality of information processing apparatuses;
A step (d) of detecting whether or not an abnormality has occurred in one information processing device of the plurality of information processing devices in another information processing device of the plurality of information processing devices;
One information in the plurality of information processing apparatuses when another information processing apparatus in the plurality of information processing apparatuses has an abnormality in one information processing apparatus in the plurality of information processing apparatuses. (E) performing steps (b) and (c) on behalf of the processing device;
An information processing method comprising: One information processing device of the plurality of information processing devices creates first data including information of a first group to be updated at a predetermined timing by the plurality of information processing devices and stores the first data in the storage device Step (f)
One information processing device of the plurality of information processing devices transmits information to be updated by one information processing device of the plurality of information processing devices in the first group of information at a predetermined timing. Updating step (g);
The other information processing devices of the plurality of information processing devices send information to be updated by the other information processing devices of the plurality of information processing devices in the first group of information at a predetermined timing. Updating step (h);
Further comprising
In step (b), one information processing device in the plurality of information processing devices should be updated by another information processing device in the plurality of information processing devices in the first group of information. Detecting that an abnormality has occurred in another information processing apparatus among the plurality of information processing apparatuses when the information has not been updated for a predetermined time or more;
In step (d), another information processing device in the plurality of information processing devices should be updated by one information processing device in the plurality of information processing devices in the first group of information. The information processing method according to claim 1, which is a step of detecting that an abnormality has occurred in one information processing apparatus among the plurality of information processing apparatuses when the information has not been updated for a predetermined time or more.   The information processing method according to claim 2, wherein the information of the first group is information representing times updated by the plurality of information processing apparatuses. In step (f), one information processing device of the plurality of information processing devices is the information processing device, or the plurality of information processing devices is one information processing device of the plurality of information processing devices. The step of creating the first data further including information of a second group each representing whether the information processing device is another information processing device and storing the first data in the storage device;
In step (b), one information processing device in the plurality of information processing devices identifies another information processing device in the plurality of information processing devices by referring to the information in the second group. Further, information to be updated by another information processing device of the plurality of information processing devices in the first group of information is specified, and the information processing devices of the plurality of information processing devices in the first group of information are identified. A step of detecting that an abnormality has occurred in another information processing apparatus among the plurality of information processing apparatuses when information to be updated by the other information processing apparatus is not updated for a predetermined time or more ,
In step (d), another information processing device of the plurality of information processing devices identifies one information processing device of the plurality of information processing devices by referring to the information of the second group. Further, the information to be updated by one information processing device among the plurality of information processing devices in the first group information is specified, and the information processing devices of the plurality of information processing devices in the first group information are identified. And detecting that an abnormality has occurred in one information processing device among the plurality of information processing devices when information to be updated by one information processing device has not been updated for a predetermined time or more. The information processing method according to claim 2 or 3. Step (f) wherein the information processing device of the plurality of information processing devices further includes a third group of information indicating a progress status of information processing shared by the plurality of information processing devices. 1 data is created and stored in the storage device,
A step (i) of updating the information of the third group when the information processing shared by the plurality of information processing devices is completed;
One information processing device of the plurality of information processing devices monitors the progress of information processing shared by the plurality of information processing devices by referring to the information of the third group, and the plurality of information processing devices A step (j) of combining processing results of information processing shared by the plurality of information processing devices when all of the information processing shared by the information processing devices is completed;
The information processing method according to claim 4, further comprising: One information processing device among the plurality of information processing devices creates second data including information of a fourth group representing information processing shared by the plurality of information processing devices, and the storage device Further comprising the step (k) of storing
In step (c), when one information processing apparatus among the plurality of information processing apparatuses has an abnormality in one of the other information processing apparatuses, the fourth information processing apparatus By identifying the information of the group, the information processing apparatus shared by the information processing apparatus in which the abnormality occurred in the plurality of information processing apparatuses is identified, and the identified information processing is performed in the abnormality in the plurality of information processing apparatuses. The information processing method according to claim 5, wherein the information processing device is a step of sharing information processing devices other than the information processing device in which the occurrence of the error occurs and updating information of the fourth group. A procedure (a) for sharing and executing a plurality of information processing in a plurality of information processing devices;
A procedure (b) for detecting whether an abnormality has occurred in another information processing device of the plurality of information processing devices in one information processing device of the plurality of information processing devices;
In one information processing apparatus among the plurality of information processing apparatuses, when an abnormality occurs in any of the other information processing apparatuses in the plurality of information processing apparatuses, A procedure (c) for sharing information processing shared by the information processing apparatus in which the abnormality has occurred with an information processing apparatus other than the information processing apparatus in which the abnormality has occurred in the plurality of information processing apparatuses;
A procedure (d) for detecting whether or not an abnormality has occurred in one information processing device of the plurality of information processing devices in another information processing device of the plurality of information processing devices;
In another information processing apparatus of the plurality of information processing apparatuses, when an abnormality occurs in one information processing apparatus of the plurality of information processing apparatuses, one piece of information in the plurality of information processing apparatuses A procedure (e) for executing steps (b) and (c) on behalf of the processing device;
An information processing program for causing the plurality of information processing devices to execute. A system comprising a plurality of information processing devices,
The plurality of information processing devices share and execute a plurality of information processing;
One information processing device of the plurality of information processing devices detects whether or not an abnormality has occurred in another information processing device of the plurality of information processing devices. When an abnormality occurs in any of the other information processing apparatuses, the information processing shared by the information processing apparatus in which the abnormality has occurred in the plurality of information processing apparatuses is Share information processing devices other than the information processing device where the abnormality occurred,
The other information processing device of the plurality of information processing devices detects whether or not an abnormality has occurred in one information processing device of the plurality of information processing devices. When an abnormality occurs in one information processing apparatus, an abnormality occurs in another information processing apparatus in the plurality of information processing apparatuses in place of one information processing apparatus in the plurality of information processing apparatuses. When an abnormality occurs in any of the other information processing apparatuses among the plurality of information processing apparatuses, the information processing apparatus in which the abnormality among the plurality of information processing apparatuses has occurred is detected. An information processing system that causes information processing that has been shared to be shared by information processing apparatuses other than the information processing apparatus in which an abnormality has occurred in the plurality of information processing apparatuses.

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