http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49159
Summary: OpenMP compilation errors
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: major
Priority: P3
Component: fortran
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: jose.pascual-guti...@1-act.com
I have the following OpenMP Fortran95 test program called test.f90.
PROGRAM test
USE OMP_LIB, ONLY: OMP_SET_NUM_THREADS
IMPLICIT NONE
INTEGER, PARAMETER :: numthreds = 4
INTEGER, PARAMETER :: maxnumber = 12
INTEGER :: totalsum, add, number
CALL OMP_SET_NUM_THREADS (numthreads)
totalsum = 0
add = 1
!$OMP PARALLEL DO &
!$OMP SCHEDULE(DYNAMIC,1) &
!$OMP DEFAULT(SHARED) &
!$OMP PRIVATE(number1, &
number2) &
!$OMP REDUCTION(+:totalsum)
DO nunmber = 1, maxnumber
totalsum = add + totalsum + number
END DO
!$OMP END PARALLEL DO
WRITE (*,*) totalsum
END PROGRAM test
I try to compile it with the command "gfortran -fopenmp test.f90". The compiler
returns with the following error message:
test.f90:16.24:
!$OMP PRIVATE(number1, &
1
Error: Syntax error in OpenMP variable list at (1)
test.f90:17.16:
number2) &
1
Error: Unclassifiable statement at (1)
test.f90:18.8:
!$OMP REDUCTION(+:totalsum)
1
Error: Unclassifiable OpenMP directive at (1)
test.f90:24.23:
!$OMP END PARALLEL DO
1
Error: Unexpectged !$OMP END PARALLEL DO statement at (1)
It is clear that the erros are caused by the !$OMP PRIVATE line. It seems that
a list of variables cannot be broken in two lines. Had I had
!$OMP PRIVATE(number1,number2) &
instead of the two lines connected with the & sign, I would have not had any
compilation errors. I wanted to try breaking the line, though, because in my
codes I have very long lists of private variables. In the previous compiler I
used, namely Intel's ifort, I had no issues. Do you have any suggestions when
it comes to long lists of private variables? Should I simply have several
!$OMP PRIVATE ([var1],[var2],...,[varn])
lines each opening and closing the bracket?
Thank you very much
