[MITgcm-devel] Beaufort experiment on mac os x

Wed Mar 14 13:15:56 EDT 2012

Torge, maybe try "-O2".  It will be a bit faster.

Martin, since "-O3" in darwin_amd64_gfortran is problematic,
should we downgrade to "-O2" in the CVS repository,
until compiler bug is fixed ... or until someone takes the time to
locate particular subroutine that causes optimization crash?

Cheers

Dimitris Menemenlis

On Mar 14, 2012, at 10:08 AM, Torge Martin wrote:

Hi Dimitris, Martin,

looks like Martin is right. I just found that using the -ieee option with genmake2 sets FOPTIM=-O0. This helps to get pass the Segmentation Fault.

Now, I the Beaufort set up is running with this option on my MacPro, OS X 10.5.8 (Snow Leopard), 2 x 3 GHz Dual-Core, 4 GB Memory, using gcc version 4.0.1 (Apple Inc. build 5465) and MITgcm/tools/build_options/darwin_ia32_gfortran.

Torge

P.S. Haven't tried running with MPI using both processors, yet.

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