What should I do in multithreading if I change from x32 to x64 in VSF

jiang_2009 — Tue, 07 Jul 2009 16:38:31 GMT

hi
What should I do in multithreading if I change from x32 to x64 in Visual studio Fortran. I've tried a simple multithread test program under win32 platform and it runs well. However, it cannot pass the build process if I change the configuration to X64 platform. I will appreciate if anybody could give some help, thanks

here is my test code:

use IFMT
external threadfunc
PARAMETER(mTHREAD=2)
common /thread/A(2,10000)

integer(4) para(mThread)
integer hthread(mthread),idthread(mthread),hticketmutex
logical(4) waitall
integer(4) nresult,nwaitresult,nticket
common /ticket/nticket
common/mutex/hticketmutex

NTICKET=1

HTICKETMUTEX=CREATEMUTEX(0,.FALSE.,0)
WAITALL=.TRUE.
DO I=1,mTHREAD
para(i)=i
HTHREAD(I)=CREATETHREAD(0,0,THREADFUNC,loc(para(i)),0,IDTHREAD(I))
END DO
NWAITRESULT=WAITFORMULTIPLEOBJECTS(mTHREAD,HTHREAD(1),WAITALL,
& WAIT_INFINITE)

LOU=CLOSEHANDLE(hTicketMutex)

DO IJ=1,mTHREAD
LOU=CLOSEHANDLE(HTHREAD(IJ))
IF(LOU.EQ.0) THEN
PRINT *,'FAIL TO CLOSE HANDLES HTHREAD'
STOP
END IF
END DO
DO I=1,4
WRITE(*,*) A(1,I),A(2,I)
END DO
PAUSE
STOP
END

integer(4) function threadfunc(arg)
use IFMT
PARAMETER(mTHREAD=2)

common /thread/A(2,10000)

integer(4) arg
integer hticketmutex
logical(4) waitall
integer(4) nresult,nwaitresult,nticket
common /ticket/nticket
common/mutex/hticketmutex

nwaitresult=waitforsingleobject(hticketmutex,WAIT_INFINITE)

K1=NTICKET

nticket=nticket+1

DO I=1,10000
A(K1,I)=I*K1
END DO

threadfunc = 0
end function

Error 1 error #6284: There is no matching specific function for this generic function reference. [CREATEMUTEX] C:\jiang\Multithread tests\mt\mtest.FOR 16
Error 2 error #6284: There is no matching specific function for this generic function reference. [CREATETHREAD] C:\jiang\Multithread tests\mt\mtest.FOR 20

these codes work well under 32bit configurartion. Does it mean I need to use some different functions (such as CREATEMUTEX, CREATETHREAD) or change the configuration in project properties under X64 platform?
thanks again

Re: What should I do in multithreading if I change from x32 to

jimdempseyatthecove — Tue, 07 Jul 2009 20:56:50 GMT

Please repost this in the Fortran for Windows forum.

Also, try changing the types for your handles to HANDLE as opposed to integer(4)

Jim Dempsey

topic Re: What should I do in multithreading if I change from x32 to in Intel® Fortran Compiler

What should I do in multithreading if I change from x32 to x64 in VSF

Re: What should I do in multithreading if I change from x32 to