Difference between revisions of "Fortran implementation of the Actor Model using MPI"
From MohidWiki
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type(T_pingPong), pointer :: pingPong | type(T_pingPong), pointer :: pingPong | ||
integer :: STAT_CALL | integer :: STAT_CALL | ||
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STAT_CALL = UNDEFINED | STAT_CALL = UNDEFINED | ||
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pingPong => constructPingPong() | pingPong => constructPingPong() | ||
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STAT_CALL = startGame(pingPong) | STAT_CALL = startGame(pingPong) | ||
if (STAT_CALL .NE. SUCCESS) then | if (STAT_CALL .NE. SUCCESS) then | ||
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stop "subroutine main, error calling startGame, ERR01" | stop "subroutine main, error calling startGame, ERR01" | ||
end if | end if | ||
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call loop(pingPong) | call loop(pingPong) | ||
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call EXIT(SUCCESS) | call EXIT(SUCCESS) | ||
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end subroutine main | end subroutine main | ||
Revision as of 19:33, 30 November 2014
A very simple ping-pong program is shown here. There are 2 programs, ping and pong, that shoot messages among them, starting each with a random number of plays. The first program reaching 0 will send a message for the other program to stop and stops itself. File moduleMPImanagement is necessary to compile both programs.
If you examine the code there is no single MPI_BARRIER or any other explicit synchronization point. The main routine is:
subroutine main()
type(T_pingPong), pointer :: pingPong
integer :: STAT_CALL
STAT_CALL = UNDEFINED
pingPong => constructPingPong()
STAT_CALL = startGame(pingPong)
if (STAT_CALL .NE. SUCCESS) then
print*, "STAT_CALL = ", STAT_CALL
stop "subroutine main, error calling startGame, ERR01"
end if
call loop(pingPong)
call EXIT(SUCCESS)
end subroutine main
