[Beowulf] Re: GPU boards and cluster servers
libo at buaa.edu.cn
Wed Sep 10 23:27:14 EDT 2008
For some workloads if SP satisfied and suitable for GPGPU, it will bring about 20X improvement or more for less money and power consumption. If not, maybe only 4X or even slower than CPU.
----- Original Message -----
From: "Jon Forrest" <jlforrest at berkeley.edu>
To: "Greg Lindahl" <lindahl at pbm.com>
Cc: <beowulf at beowulf.org>
Sent: Thursday, September 11, 2008 8:38 AM
Subject: Re: [Beowulf] Re: GPU boards and cluster servers
> Greg Lindahl wrote:
>> Well, then, why don't you run it on a low-end card that you already
>> have (finite/free = infinity)? If you aren't going to bother to
>> constrain the problem, you're going to get bogus answers.
> Easy. Because I don't already have a low-end card.
> What I'm going to try to do is to be able to show
> the faculty and grad students around here how
> easy it is to get a significant performance improvement
> by using CUDA as compared to using their normal
> i386 or x86_64 processors. The actual performance
> improvement isn't that important because even if it's
> just a 2X improvement it will be easy to justify.
> I'm expecting it to be a lot more because much
> of what goes on around here has already been ported
> and summarized on the CUDA web site with >=10X improvements.
> Then, once I've hooked the faculty I'll get them to buy
> a high-end card to get maximum performance.
> Jon Forrest
> Research Computing Support
> College of Chemistry
> 173 Tan Hall
> University of California Berkeley
> Berkeley, CA
> jlforrest at berkeley.edu
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