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Showing results 1 to 9 of 9 Search took 0.00 seconds. Search: Posts Made By: wyldckat

Forum: OpenFOAM Running, Solving & CFD June 16, 2012, 07:16

Replies: 22 OpenFoam and OpenMPI Views: 5,426 Posted By wyldckat Good catch! I was hoping they wouldn't do the... Good catch! I was hoping they wouldn't do the exact same optimizations :(

Forum: OpenFOAM Running, Solving & CFD June 16, 2012, 04:56

Replies: 22 OpenFoam and OpenMPI Views: 5,426 Posted By wyldckat Hi Anton, Well, the "march=barcelona" option... Hi Anton, Well, the "march=barcelona" option might give you a few more percentage points, since the "amdfam10" is for the mainstream processors, not Opteron specific ;) Best regards, Bruno ...

Forum: OpenFOAM Running, Solving & CFD June 14, 2012, 15:54

Replies: 22 OpenFoam and OpenMPI Views: 5,426 Posted By wyldckat Greetings to all! I googled for "amd hpc gcc... Greetings to all! I googled for "amd hpc gcc flags" (without the quotes) and the first hit was a very interesting tutorial:...

Forum: OpenFOAM Running, Solving & CFD April 24, 2012, 04:33

Replies: 22 OpenFoam and OpenMPI Views: 5,426 Posted By wyldckat I've never tested it, because: Open64 is... I've never tested it, because: Open64 is somewhat of an experimental compiler + OpenFOAM is highly demanding in terms of C++ standards = so I've never tried it. For comparison, the Intel C++...

Forum: OpenFOAM Running, Solving & CFD April 24, 2012, 04:17

Replies: 22 OpenFoam and OpenMPI Views: 5,426 Posted By wyldckat Hi Pablo, I don't have access to one of the... Hi Pablo, I don't have access to one of the latest AMD CPUs, so I can't test this particular speedup. All I know is that Gcc 4.7 has improved support for this (new) generation of AMD CPUs. And the...

Forum: OpenFOAM Running, Solving & CFD April 23, 2012, 17:24

Replies: 22 OpenFoam and OpenMPI Views: 5,426 Posted By wyldckat Like the document states: And quoting from gcc's... Like the document states: And quoting from gcc's online manual: http://gcc.gnu.org/onlinedocs/gcc-4.7.0/gcc/Optimize-Options.html

Forum: OpenFOAM Running, Solving & CFD April 23, 2012, 16:00

Replies: 22 OpenFoam and OpenMPI Views: 5,426 Posted By wyldckat Hi Pablo, For the 6200 series (I saw this... Hi Pablo, For the 6200 series (I saw this post of yours (http://www.cfd-online.com/Forums/hardware/100260-mpirun-best-parameters.html#post356261)), see the Gcc table from here:...

Forum: OpenFOAM Running, Solving & CFD April 23, 2012, 07:48

Replies: 22 OpenFoam and OpenMPI Views: 5,426 Posted By wyldckat With proper optimization options when building... With proper optimization options when building OpenFOAM and OpenMPI, it might be possible to overcome or minimize that issue! The simplest way is to use Gcc 4.6, preferably one of the latest ones...

Forum: OpenFOAM Running, Solving & CFD April 23, 2012, 05:44

Replies: 22 OpenFoam and OpenMPI Views: 5,426 Posted By wyldckat Greetings to all! I was going to write about... Greetings to all! I was going to write about processor affinity, but this seems to have already been discussed on Pablo's other thread:...

Showing results 1 to 9 of 9

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