On Tue, May 29, 2012 at 3:52 PM, Jed Brown <jedbrown at mcs.anl.gov> wrote:
> The OpenMP flags do not definitively identify that OpenMP is used. In
> particular, IBM XL interprets Cray's option "-h omp" as being equivalent to
> "-soname omp", then silently ignores the Open MP pragmas. We can perhaps
> "fix" this instance by moving -qsmp up in the list, but we may eventually
> need to move it to compilerOptions.py.
Move it up, and add it to the comment. And people think OpenMP is the easy
way?
Matt
> def configureLibrary(self):
> ''' Checks for -fopenmp compiler flag'''
> ''' Needs to check if OpenMP actually exists and works '''
> self.setCompilers.pushLanguage('C')
> #
> for flag in ["-fopenmp", # Gnu
> "-h omp", # Cray
> "-mp", # Portland Group
> "-Qopenmp", # Intel windows
> "-openmp", # Intel
> " ", # Empty, if compiler automatically accepts
> openmp
> "-xopenmp", # Sun
> "+Oopenmp", # HP
> "-qsmp", # IBM XL C/c++
> "/openmp" # Microsoft Visual Studio
> ]:
> if self.setCompilers.checkCompilerFlag(flag):
> ompflag = flag
> break
>
>
--
What most experimenters take for granted before they begin their
experiments is infinitely more interesting than any results to which their
experiments lead.
-- Norbert Wiener
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