* [Bug fortran/62007] default(none) conflicts with iteration variable in openmp parallel loop simd
2014-08-04 10:48 [Bug fortran/62007] New: default(none) conflicts with iteration variable in openmp parallel loop simd alexander.grund at mailbox dot tu-dresden.de
@ 2014-08-04 10:48 ` alexander.grund at mailbox dot tu-dresden.de
2014-08-04 10:53 ` dominiq at lps dot ens.fr
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From: alexander.grund at mailbox dot tu-dresden.de @ 2014-08-04 10:48 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62007
Alexander Grund <alexander.grund at mailbox dot tu-dresden.de> changed:
What |Removed |Added
----------------------------------------------------------------------------
Severity|normal |major
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2014-08-04 10:48 [Bug fortran/62007] New: default(none) conflicts with iteration variable in openmp parallel loop simd alexander.grund at mailbox dot tu-dresden.de
2014-08-04 10:48 ` [Bug fortran/62007] " alexander.grund at mailbox dot tu-dresden.de
@ 2014-08-04 10:53 ` dominiq at lps dot ens.fr
2014-08-04 11:02 ` alexander.grund at mailbox dot tu-dresden.de
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From: dominiq at lps dot ens.fr @ 2014-08-04 10:53 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62007
Dominique d'Humieres <dominiq at lps dot ens.fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |WAITING
Last reconfirmed| |2014-08-04
Ever confirmed|0 |1
Severity|major |normal
--- Comment #1 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
Could you provide a complete test code?
^ permalink raw reply [flat|nested] 10+ messages in thread* [Bug fortran/62007] default(none) conflicts with iteration variable in openmp parallel loop simd
2014-08-04 10:48 [Bug fortran/62007] New: default(none) conflicts with iteration variable in openmp parallel loop simd alexander.grund at mailbox dot tu-dresden.de
2014-08-04 10:48 ` [Bug fortran/62007] " alexander.grund at mailbox dot tu-dresden.de
2014-08-04 10:53 ` dominiq at lps dot ens.fr
@ 2014-08-04 11:02 ` alexander.grund at mailbox dot tu-dresden.de
2014-08-04 11:02 ` alexander.grund at mailbox dot tu-dresden.de
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From: alexander.grund at mailbox dot tu-dresden.de @ 2014-08-04 11:02 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62007
--- Comment #2 from Alexander Grund <alexander.grund at mailbox dot tu-dresden.de> ---
Created attachment 33232
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33232&action=edit
Working example
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From: alexander.grund at mailbox dot tu-dresden.de @ 2014-08-04 11:02 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62007
--- Comment #3 from Alexander Grund <alexander.grund at mailbox dot tu-dresden.de> ---
Created attachment 33233
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33233&action=edit
Broken example
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2014-08-04 10:48 [Bug fortran/62007] New: default(none) conflicts with iteration variable in openmp parallel loop simd alexander.grund at mailbox dot tu-dresden.de
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From: alexander.grund at mailbox dot tu-dresden.de @ 2014-08-04 11:04 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62007
--- Comment #4 from Alexander Grund <alexander.grund at mailbox dot tu-dresden.de> ---
I attached 2 testcases. Both are the same files but with different file
endings. The .f works, the .F90 doesn't (it shows the reported behavior)
compile both with "gfortran -fopenmp {file}"
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2014-08-04 10:48 [Bug fortran/62007] New: default(none) conflicts with iteration variable in openmp parallel loop simd alexander.grund at mailbox dot tu-dresden.de
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2014-08-04 11:04 ` alexander.grund at mailbox dot tu-dresden.de
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From: anlauf at gmx dot de @ 2014-08-04 12:29 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62007
Harald Anlauf <anlauf at gmx dot de> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |anlauf at gmx dot de
--- Comment #5 from Harald Anlauf <anlauf at gmx dot de> ---
(In reply to Alexander Grund from comment #4)
> I attached 2 testcases. Both are the same files but with different file
> endings. The .f works, the .F90 doesn't (it shows the reported behavior)
>
> compile both with "gfortran -fopenmp {file}"
The reason you get no error with the .f file is that it is
a Fortran fixed format source file.
If you add -ffree-form to the gfortran options, you get the
same error.
I think the problem is that the simd directive belongs to
OpenMP 4.0 and your gfortran supports only 3.1.
You'll have to wait until OpenMP 4 is supported by gfortran.
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2014-08-04 10:48 [Bug fortran/62007] New: default(none) conflicts with iteration variable in openmp parallel loop simd alexander.grund at mailbox dot tu-dresden.de
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2014-08-04 12:29 ` anlauf at gmx dot de
@ 2014-08-04 12:36 ` alexander.grund at mailbox dot tu-dresden.de
2014-12-06 22:13 ` dominiq at lps dot ens.fr
2014-12-08 13:32 ` jakub at gcc dot gnu.org
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From: alexander.grund at mailbox dot tu-dresden.de @ 2014-08-04 12:36 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62007
--- Comment #6 from Alexander Grund <alexander.grund at mailbox dot tu-dresden.de> ---
gfortran 4.9.1 supports OpenMP 4.0
Removing the default(none) clause removes the error message, so it certainly IS
supported.
Besides that: Even the error message mentiones "!$OMP PARALLEL DO SIMD" so it
is recognized.
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2014-08-04 10:48 [Bug fortran/62007] New: default(none) conflicts with iteration variable in openmp parallel loop simd alexander.grund at mailbox dot tu-dresden.de
` (6 preceding siblings ...)
2014-08-04 12:36 ` alexander.grund at mailbox dot tu-dresden.de
@ 2014-12-06 22:13 ` dominiq at lps dot ens.fr
2014-12-08 13:32 ` jakub at gcc dot gnu.org
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From: dominiq at lps dot ens.fr @ 2014-12-06 22:13 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62007
Dominique d'Humieres <dominiq at lps dot ens.fr> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |NEW
CC| |jakub at gcc dot gnu.org
--- Comment #7 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
% cat pr62007_db.f
program hello
integer :: i, x
C$omp parallel do simd private(x) default(none)
do i=1,10
x=x+1
end do
end program hello
triggers the same error.
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2014-08-04 10:48 [Bug fortran/62007] New: default(none) conflicts with iteration variable in openmp parallel loop simd alexander.grund at mailbox dot tu-dresden.de
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2014-12-06 22:13 ` dominiq at lps dot ens.fr
@ 2014-12-08 13:32 ` jakub at gcc dot gnu.org
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From: jakub at gcc dot gnu.org @ 2014-12-08 13:32 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62007
--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
I think the message is correct, or at least the case is highly unclear, the
OpenMP 4.0 standard has various unclear corner cases.
The thing is, the loop iterator is predetermined linear, and the linear clause
makes implicit reference to the outer var, but as linear clause is not allowed
on the parallel, it can't be specified there and with default(none) you are
requesting that everything is specified there explicitly.
I can only suggest using non-combined construct in that case if you for some
reason need default(none), say:
!$omp parallel private (i_ct) default(none)
!$omp do simd
do i_ct = 1, 10
...
end do
!$omp end parallel
or so.
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