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Fortran Timers Module

Iain Miller

Fortran Timers Module

For codes that use PMTM in multiple modules the timer handles will need to made available to all modules that want to control the timers. One way of doing this is by creating a PMTM timers module which can be ‘USE’d by the other modules as needed. Below is an example module which contains the global timer handles, as well as a helper method, create_timers, which can be called to initialise all the handles. The create_timers routine will need to be called after PMTM_init has been called.

:::fortran

module pmtm_timers 

    use PMTM
    implicit none 
    private

    integer , public :: pmtm_status
    type(pmtm_timer), public :: PMTM_APPLICATION_TIMER 
    type(pmtm_timer), public :: PMTM_COMMUNICATION_TIMER 
    type(pmtm_timer), public :: PMTM_COMPUTATION_TIMER

    public :: create_timers 

contains

    subroutine create_timers()
        implicit none
        call create_timer(PMTM_APPLICATION_TIMER , "Application Time")
        call create_timer(PMTM_COMMUNICATION_TIMER , "Communication Time")
        call create_timer(PMTM_COMPUTATION_TIMER , "Computation Time") 
    endsubroutine create_timers

    subroutine create_timer(timer, timer_name) 
        implicit none
        type(pmtm_timer), intent(out) :: timer 
        character(len=*), intent(in)  :: timer_name

        call PMTM_create_timer(PMTM_DEFAULT_GROUP, timer, & 
                timer_name , PMTM_TIMER_ALL, pmtm_status)

            if (pmtm_status /= 0) then
                write(6,*) PMTM_get_error_message(pmtm_status)
            endif
    endsubroutine create_timer

end module

Related

Wiki: PMTM