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st: Re: GPUs and statistical computing


From   David Airey <david.airey@vanderbilt.edu>
To   Statalist <statalist@hsphsun2.harvard.edu>
Subject   st: Re: GPUs and statistical computing
Date   Mon, 24 Aug 2009 10:00:41 -0500

.

Turns out, according to the authors, that they ARE using cards and CUDA that allows double-precision. Amazing.

-Dave


In the following interesting article,

http://www.biomedcentral.com/1756-0500/2/149

the authors "...show that a single GPU machine containing three GPUs that costs $2000 performs similarly to 150 CPUs on a compute cluster. These CPUs, including the added infrastructure and support cost of the cluster system, would cost approximately $82,500."

Occasionally I ask Stata Corp about the possibility of parallel computing using graphics processing chips, for example:

http://www.stata.com/statalist/archive/2009-06/msg00329.html

The problem seems to be that GPUs do not generally support double- precision arithmetic. I guess one question for the authors of the above article is: fast yes, but precise?

-Dave
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