| Re: GPULIB [message #61010] |
Sat, 28 June 2008 03:37 |
Mort Canty
Messages: 134
Registered: March 2003
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Senior Member |
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Rick Towler schrieb:
>
>
> biophys wrote:
>> Very nice! More than 80 fold boost in speed.
>
> Take those numbers with a shaker of salt. As with all benchmarks
> performance depends on the application. Mort's numbers are probably
> single precision (I think DP is only supported on the 9XXX series cards
> and newer?) and that problem set fit entirely in his card's local
> memory. Performance also depends on your GPU's local bandwidth, the
> number of shader units (aka "stream processors"), and the shader clock,
> all of which can vary quite a bit between cards.
>
>
> -Rick
Absolutely. Trying to port "real life" applications to the GPU is a
sobering experience, and what I want to "blog" about.
-Mort
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| Re: GPULIB [message #61018 is a reply to message #61016] |
Fri, 27 June 2008 15:40  |
Rick Towler
Messages: 821
Registered: August 1998
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Senior Member |
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RussellGrew wrote:
> EnvyNG broke my XWindows on Ubuntu. I also recall there was a problem
> with his PATH lines. Possibly the '\'.
FWIW, I've been using Envy (plain Envy, not NG) on 3 Ubuntu boxes w/o
issue. Even gone thru a couple of kernel upgrades where you have to
reinstall the driver. Envy seems to handle it very cleanly. I can't
speak for NG though as I'm not running a Hardy box on nVidia hardware.
-Rick
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| Re: GPULIB [message #61019 is a reply to message #61018] |
Fri, 27 June 2008 15:34 |
Rick Towler
Messages: 821
Registered: August 1998
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Senior Member |
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biophys wrote:
> Very nice! More than 80 fold boost in speed.
Take those numbers with a shaker of salt. As with all benchmarks
performance depends on the application. Mort's numbers are probably
single precision (I think DP is only supported on the 9XXX series cards
and newer?) and that problem set fit entirely in his card's local
memory. Performance also depends on your GPU's local bandwidth, the
number of shader units (aka "stream processors"), and the shader clock,
all of which can vary quite a bit between cards.
I'm not dismissing GPULIB in any way. Quite the opposite. I think it
is fabulous that Tech-X has made this available and I am quite
disappointed that I am not modeling these days as I would be all over
it. I just wouldn't tell your boss that you can save her tens of
thousands of dollars on that new compute cluster just yet...
-Rick
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| Re: GPULIB [message #61031 is a reply to message #61029] |
Thu, 26 June 2008 21:16 |
biophys
Messages: 68
Registered: July 2004
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Member |
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Very nice! More than 80 fold boost in speed. I have a home pc with a
fanless 8600gt too. It's running 64 bit ubuntu. I wonder if anybody
had any experience on linux to share. Does it work on 64 bit linux?
Will it have similar performance boost as in windows? bp
On Jun 26, 11:31 am, Mort Canty <m.ca...@fz-juelich.de> wrote:
> Hi all,
>
> I decided to try to share some of my experiences with GPULIB via a Blog.
>
> http://fwenvi-idl.blogspot.com/
>
> Hope that some of you are interested and that I have enough
> self-discipline to keep it up :-)
>
> Cheers,
>
> Mort
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