[OpenIndiana-discuss] OpenCDE in OpenIndiana
Tak Pui Lou
tplou at lbl.gov
Fri Sep 23 06:43:32 UTC 2011
I never compare the codes I use most with gfortran 4.x. However, I have compared runtime for the same fortran code compiled with Intel compiler, SUN Studio, open64, pathscale, and pgi compiler. Guess which one is the fastest: SUN Studio! They were all compiled with very high optimization flags. I would say open64 is doing pretty good. The other advantage for having open64 is that someone in open64 community has interest of implementing automatic insertion of dtrace probe in fortran for platforms that support it but I don't remember seeing it actually funded at GSoC. Anyway, I think I read that the OI or Illumos developers picked clang because of larger community which means better support or something like that. Please correct me if I am wrong.
On Sep 22, 2011, at 11:21 PM, Philip J. Robar wrote:
> On Sep 23, 2011, at 1:30 AM, Tak Pui Lou wrote:
>> If we can agree on that OS X has a nice UI, perhaps we should consider Étoilé <http://etoile-project.org> for OI especially when we want clang as the future system compiler. Although I still want to see open64 on OI as pathscale may have OpenCL support in their future product with Nouveau driver. Another reason for open64 is Fortran.
> This is the first I’ve heard of open64. Any idea of how it compares to gcc 4.x and Clang?
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