Portland Group (PGI; www.pgroup.com) offers Fortran and C/C++ compilers
for Opteron. They also have a cluster package that includes MPI and
some other features. See their web page for details and pricing.
I've only tried a couple of programs with the PGI Opteron Fortran
compiler. It seemed to work OK. The compilation was fast. I didn't
have any comparison base for the speed of the a.out. Others have
observed that for C programs, the gcc compiler did produce faster code.
I believe PGI expects better performance in future releases. My only
complaint is the large number of compiler switches, and the fact that
you need to hit on some combination of them for good performance. I
prefer environments where a high optimization level is the default.
If you can wait, g95 might also be a good option for the Opteron, based
on experience with gcc.
Cheers,
Bill
Aleksandar Donev wrote:
>Hello,
>
>I forgot to also ask about Opteron chips.
>
>Thanks,
>Aleksandar
>
>
>
>>My department is getting a new cluster and they are thinking about what
>>kinds of processors to use. Among the options is G5.
>>
>>I would appreciate any info about Fortran 95 on G5 platforms. As far as I
>>know, Absoft, NAG and now IBM (still beta) support this chip on OS X.
>>Experiences as well as any information on web-pages to look at for info
>>(pricing, requirements, etc.) would be helpful.
>>
>>
--
Bill Long [log in to unmask]
Fortran Technical Support & voice: 651-605-9024
Bioinformatics Software Development fax: 651-605-9142
Cray Inc., 1340 Mendota Heights Rd., Mendota Heights, MN, 55120
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