Using OpenMP with Intel Fortran

zokagoa — Thu, 12 Aug 2010 19:15:10 GMT

Hi,
I'm trying to use a Intel FORTRAN (Windows) code section parallelisation though the use of OpenMP but I have an error message that I cannot fix. I think, I might have a problem of the project properties configuration.

The main problem comes from the Fortran Language Process OpenMP Directives configuration. I selected : Generate Parallel Code (/Qopenmp)

The message error is expressed as :

Debug Assertion Failled

...

File:f:\\dd\\vctools\\crt_bld\\self_x86\\crt\\scr\\winsig.c

Line 419

Expression:("Invalid signal or erroe", 0)

Here is a little code I am using to check the gain in time:

====================================================

[bash]program   doparallelsection
 
 use omp_lib  
implicit none

INTEGER N, I, J, K,NK, parallel
PARAMETER (N=1000)

REAL*8 A(N,N),B(N,N),C(N,N), ti, tf

parallel = 1
NK = 100
call cpu_time(ti)


if (parallel==1) then
!$OMP PARALLEL SECTIONS
    !$OMP SECTION
        do k=1,NK
            do i= 1, N
                do j=1,N    
                    A(i,j) = i+j
                enddo 
            enddo
        enddo
          
    !$OMP SECTION
        do k=1,NK
            do i= 1, N
                do j=1,N    
                    B(i,j) = i-j
                enddo 
            enddo
        enddo  

    !$OMP END PARALLEL SECTIONS
else

     do k=1,NK
        do i= 1, N
            do j=1,N    
                A(i,j) = i+j
            enddo 
        enddo
    enddo
      
    do k=1,NK
        do i= 1, N
            do j=1,N    
                B(i,j) = i-j
            enddo 
        enddo
    enddo 
    
 endif 
  
call cpu_time(tf)

if (parallel ==1) then
    open(unit=10,file='cpu_paralleldo.dat',status="unknown")
else
    open(unit=10,file='cpu_do.dat',status="unknown")
endif

write(10,*) "cpu time ="
write(10,*) tf-ti
close(10)

end
================================================

Thanks for the help.

Jean-Marie[/bash]

Using OpenMP with Intel Fortran

jimdempseyatthecove — Thu, 12 Aug 2010 19:43:16 GMT

With program not running and Debug configuration selected and built click on

Debug | Windows | Breakpoints

The in the break point window, click on the button to delete all break points.
(do not leave any break points in the window)

Then reset any break point you may wish to have. Then try running again.

Jim Dempsey

topic Using OpenMP with Intel Fortran in Intel® Fortran Compiler

Using OpenMP with Intel Fortran

Using OpenMP with Intel Fortran