[Beowulf] AMD Opteron Linpack Benchmark

james pepin pepin at usc.edu
Mon Sep 25 16:31:33 EDT 2006


whats the question??

the effeciency we saw improved with increased memory, also improves  
with more cores on a node...


jim

On Sep 25, 2006, at 10:39 AM, Daniel Kidger wrote:

> Mike (or indeed anybody else who might know)
>
> Can you post a reference to the list for Jim Pepin's ppt ?
> Google didn't come up with anything useful
>
> Closest might be "Building and Benchmarking a 10 TF Linux Cluster"  
> Jim Pepin,
> USC at Sun HPC consortium 2005 but can't find any online resources  
> for this ?
>
> Daniel
>
> Dr. Daniel Kidger, Technical Consultant, ClearSpeed Technology plc,  
> Bristol,
> UK
> E: daniel.kidger at clearspeed.com
> T: +44 117 317 2030
> M: +44 7738 458742
> "Write a wise saying and your name will live forever." - Anonymous.
>
>
> -----Original Message-----
> From: beowulf-bounces at beowulf.org [mailto:beowulf- 
> bounces at beowulf.org] On
> Behalf Of Mike Davis
> Sent: 24 September 2006 17:48
> To: Eric W. Biederman
> Cc: Lai Dragonfly; beowulf at beowulf.org
> Subject: Re: [Beowulf] AMD Opteron Linpack Benchmark
>
> Also, check out the changes that Jim Pepin at USC made to his  
> cluster to
> produce more teraflops. There is a Powerpoint on the web that gives  
> some
> of the details. If I remember correctly he actually removed RAM  
> from the
> nodes and made a few other changes.
>
> Mike Davis
>
> Eric W. Biederman wrote:
>
>> "Lai Dragonfly" <poknam at gmail.com> writes:
>>
>>
>>
>>> Hi,
>>> There is a rank 367 which achieve 79.97% efficiency.
>>>
>>>
>>> i'm using Infiniband to connect 2 nodes. each node has 8G memory  
>>> and dual
> AMD
>>> opteron 250.
>>> i just tried Intel Compiler + GOTO, it just got a 60% efficiency  
>>> which have
> a
>>> large difference with my target.
>>> maybe i need to try Pathscale or PGI compiler.
>>> any suggestion?
>>> thanks a lot.
>>>
>>>
>>
>> Start with single node runs, then work you way up from there.
>>
>> Eric
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