[Bioclusters] blast on opteron

[Joseph Landman]

Wonderful!  We should be able to use the 64 bit versions of the BLAST 
code then (have to set the processor model correctly, and a few other 
things).

Joe

Andrew Shewmaker wrote:

> Joe Landman wrote:
>
> <snip>
>
>> Option 1 works today, it simply requires some process adjustment.  If
>> this is possible you should be in good shape.  Option 2 may be possible,
>> but I had some issues with quality of the opteron OSes I played with. 
>> The compiler and library issues on these machines are annoying right
>> now, but they should be resolved with AMD's help.  There are lots of
>> distro's that "run" on the opteron, though I am not sure if they really
>> support large memory directly, or if they use the PAE hack.  If it is
>> the latter (the same way to support large memory on Xeon's), it is worth
>> avoiding.  
>
>
> I have tested an opteron's memory with a non-bio code.  It is a nuclear
> model that in one particular problem allocated around 6GB RAM for a 
> single process that ran for 2 days.  This model will not run when
> compiled as a 32-bit executable on any platform, and PAE wouldn't 
> change that.
>
> This was with SuSE and I didn't experience any problems with the beta 
> version of the Portland Group compiler on this code.  I'm looking 
> forward to getting my own opteron's in the near future.
>
> Andrew
>

-- 
Joseph Landman, Ph.D
Scalable Informatics LLC,
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