[RegCNET] Computer system, RegCM3 parallel

[XUNQIANG BI]

Hi, Marc Marcella:

I Cc this email to RegCNET, hopefully you could get the reply
from other people tell the right option for buying parallel computer.

The issue for computer configuration is highly depends on the
budget you plan to spend. At ICTP we use 8/16 CPUs AMD 64-bit CPU
the cluster with LiNUX syatem (Inter FORTRAN version 10) locally,
and do big run on the IBM SP5 supercomputer at CINECA, Bologna.

To know how to run the parallel job, there is a simple webpage at:
http://users.ictp.it/~pubregcm/RegCM3/faq/parallel_1.txt

The key point to run the parallel version is to prepare one
Makefile (similar to Makefile_CL2, Makefile_SP2p or
Makefile_AMD64p_IFC8 in the present release).

Based on my knowledge, one option you can choose is the SGI Altix
cluster (with LINUX system) or the AMD64 cluster we use at ICTP if
you just have limited budget.

Hope other experts can tell us their options for choosing the
parallel computer

Regards !
Xunqiang Bi

On Wed, 30 Apr 2008, Marc Pace Marcella wrote:

> We are looking to start running RegCM3 in parallel. 
> Fatih wanted me to ask you what the specs of your system at ICTP looked like 
> (architecture, processors, raid array, etc.) so we can gauge what we may want 
> to purchase.  Also, any advice you have on bottlenecks, things necessary to 
> consider/purchase, etc.  would be greatly appreciated.  In addition, I wanted 
> to know if there was any guide or manual on how to run the code in parallel. 
> I have never done this or experimented with parallel coding before.  I 
> believe at the conference a couple of years ago you gave a nice presentation 
> on how to get the code running in parallel.  I wanted to know if you could 
> pass this along or any documentation on running RegCM3 parallel.  Thanks 
> again for all your help!!
>
> Bests,
>
>
> Marc Marcella
>
>

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   Dr. Xunqiang Bi         email:bixq at ictp.it
   Earth System Physics Group
   The Abdus Salam ICTP
   Strada Costiera, 11
   P.O. BOX 586, 34100 Trieste, ITALY
   Tel: +39-040-2240302  Fax: +39-040-2240449
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