Open MPI logo

Open MPI Development Mailing List Archives

  |   Home   |   Support   |   FAQ   |   all Development mailing list

Subject: Re: [OMPI devel] 1.4.5rc2 now released
From: Paul H. Hargrove (PHHargrove_at_[hidden])
Date: 2012-01-19 17:22:53

Minor documentation nit, which might apply to the 1.5 branch as well
(didn't check).

README says:
> - Open MPI does not support the Sparc v8 CPU target, which is the
> default on Sun Solaris. The v8plus (32 bit) or v9 (64 bit)
> targets must be used to build Open MPI on Solaris. This can be
> done by including a flag in CFLAGS, CXXFLAGS, FFLAGS, and FCFLAGS,
> -xarch=v8plus for the Sun compilers, -mcpu=v9 for GCC.

However, following that instruction w/ Sun Studio 12 Update 2 yields:
> cc: Warning: -xarch=v8plus is deprecated, use -m32 -xarch=sparc instead
for every single compilation.

I vaguely recall noting this once before, perhaps 2 years or so.

Additionally, it appears that the "Sun" example is for the 32-bit ABI
and the "GCC" example for the 64-bit ABI.
This is potentially a bit confusing.


On 1/19/2012 9:55 AM, Jeff Squyres wrote:
> Please test:

Paul H. Hargrove                          PHHargrove_at_[hidden]
Future Technologies Group
HPC Research Department                   Tel: +1-510-495-2352
Lawrence Berkeley National Laboratory     Fax: +1-510-486-6900