[MITgcm-support] Suggestions for making MITgcm accessible
jbeismann at hpce.nec.com
Thu Jun 7 08:28:16 EDT 2007
Dear MITgcm users,
> This "philosphy" works fairly well for most single cpu and parallel
> computer architectures, although I am now struggling with a vector
> computer for which the MITgcm is only efficient if the horizontal domain
> size is fairly large (because the code generally excludes vectorization
> in the vertical dimension, and that's not likely to change).
just a quick comment regarding the use of the MITgcm on vector machines:
I'm not familiar with Martin's application, but I know several MITgcm
configurations which are used very efficiently on SX machines at other
computing centres. These are "medium-sized" regional ocean models, and
they typically run at appr. 25-35% of the theoretical peak performance.
As Martin pointed out, it is necessary to have a completely vectorised
code to achieve good vector performance, but there is no general problem
in running the MITgcm on a vector machine.
Dr. Jens-Olaf Beismann Benchmarking Analyst
NEC High Performance Computing Europe GmbH
Prinzenallee 11, D-40549 Duesseldorf, Germany
Tel: +49 4326 288859 (office) +49 160 183 5289 (mobile)
Fax: +49 4326 288861 http://www.hpce.nec.com
More information about the MITgcm-support