st: Re: GPUs and statistical computing

[David Airey <david.airey@vanderbilt.edu>]

.

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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