RE: [AMBER] CPU core requirements for GPU Amber?

From: Scott Le Grand <SLeGrand.nvidia.com>
Date: Wed, 26 May 2010 16:16:32 -0700

A Fermi GPU will buy you nearly twice the performance.


-----Original Message-----
From: amber-bounces.ambermd.org [mailto:amber-bounces.ambermd.org] On Behalf Of Richard Owczarzy
Sent: Wednesday, May 26, 2010 15:53
To: AMBER Mailing List
Subject: RE: [AMBER] CPU core requirements for GPU Amber?

Hi Ross:

Will older NVIDIA GPUs be supported in a multi-GPU version of Amber? I
am thinking about C1060, etc. It could be useful to use established GPUs
for 1-2 years until NVIDIA improves and matures Fermi architecture.


Richard Owczarzy
Senior Research Scientist
Integrated DNA Technologies


-----Original Message-----
From: amber-bounces.ambermd.org [mailto:amber-bounces.ambermd.org] On
Behalf Of Ross Walker
Sent: Wednesday, May 26, 2010 5:40 PM
To: 'AMBER Mailing List'
Subject: RE: [AMBER] CPU core requirements for GPU Amber?

Hi Jason,

> in and correct minor misconceptions I have about this, but the amber11
> release does currently only support 1 CPU and 1 GPU, and I think
> parallelization will go in the direction of making it 1 CPU for
> multiple
> GPUs, not the other way around.

Just to update on this... We hope to have a multi-GPU version of AMBER
ready
in a few months. EXTREMELY provisional numbers are on the order of
2.5-2.7
or so times speed up on 4 C2050's (vs 1 C2050) using 4 GPUs for JAC.
This
will hopefully be released as a patch to the AMBER 11 code once it is
finished and has been tested.

All the best
Ross

/\
\/
|\oss Walker

| Assistant Research Professor |
| San Diego Supercomputer Center |
| Tel: +1 858 822 0854 | EMail:- ross.rosswalker.co.uk |
| http://www.rosswalker.co.uk | http://www.wmd-lab.org/ |

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Received on Wed May 26 2010 - 16:30:07 PDT
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