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Re: detection and support of OpenMP
From: |
Noah Misch |
Subject: |
Re: detection and support of OpenMP |
Date: |
Thu, 17 May 2007 05:00:12 -0700 |
User-agent: |
Mutt/1.5.9i |
On Thu, May 17, 2007 at 12:30:31PM +0200, Bruno Haible wrote:
> In the macro, it would have been simpler to blindly test for the first
> supported option in a list "-fopenmp -xopenmp -openmp -mp -omp -qsmp=omp",
> but many compilers accept several of these options and do something unrelated
> -
> like to create an output file called 'penmp' or to warn about an unsupported
> compiler option. The code therefore applies each option only to the brand of
> compiler that is known to be likely to support it.
Even if a compiler accepts one of these options without enabling OpenMP, the
test compilation will fail thanks to _OPENMP remaining undefined. Right?
I also echo Ralf's good advice, particularly about testing a few OpenMP features
in addition to the preprocessor symbol.
- Re: detection and support of OpenMP, (continued)
- Re: detection and support of OpenMP, Bruno Haible, 2007/05/17
- Re: detection and support of OpenMP, Ralf Wildenhues, 2007/05/17
- Re: detection and support of OpenMP, Bruno Haible, 2007/05/17
- Re: detection and support of OpenMP, Paul Eggert, 2007/05/21
- Re: detection and support of OpenMP, Bruno Haible, 2007/05/21
- Re: detection and support of OpenMP, Paul Eggert, 2007/05/21
- Re: detection and support of OpenMP, Noah Misch, 2007/05/21
- Re: detection and support of OpenMP, Paul Eggert, 2007/05/21
- Re: detection and support of OpenMP, Noah Misch, 2007/05/21
- Re: detection and support of OpenMP, Bruno Haible, 2007/05/27
Re: detection and support of OpenMP,
Noah Misch <=
Re: detection and support of OpenMP, Paul Eggert, 2007/05/17