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Re: Strange results with -mfpmath=sse

From: Arjen Markus <arjen dot markus895 at gmail dot com>
To: Dominique Dhumieres <dominiq at lps dot ens dot fr>
Cc: fortran at gcc dot gnu dot org
Date: Fri, 1 May 2009 14:24:54 +0200
Subject: Re: Strange results with -mfpmath=sse
References: <20090501112632.DA0633BAB9@mailhost.lps.ens.fr> <5b37dace0905010439j3d26892p1d26756846e95c0d@mail.gmail.com> <5b37dace0905010442u4a0acc48l1f26b0931fc879a0@mail.gmail.com>

2009/5/1 Arjen Markus <arjen.markus895@gmail.com>:
>
> Some more information: the Intel compiler with -msse -march=pentium3 does give
> results in the expected range.
>

It seems the flag -msse2 solves the issue. With:

gfortran -mfpmath=sse -msse2 program.f90 -o program

I get a version that does the job properly.

Regards,

Arjen

References:
- Re: Strange results with -mfpmath=sse
  - From: Dominique Dhumieres
- Re: Strange results with -mfpmath=sse
  - From: Arjen Markus
- Re: Strange results with -mfpmath=sse
  - From: Arjen Markus

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