[Swift-devel] Falkon and Coaster support for MPI

[Ioan Raicu]

Plus, we were talking about 32-CPU MPI jobs (for performance reasons), 
but there are 256 CPUs in the smallest allocation Cobalt understands, so 
if we want to run 8 different jobs of 32 CPU MPI jobs in each P-SET of 
256 CPUs, then we can't use Cobalt again, and have to support MPI 
internally in Falkon/Coaster.

Ioan

Mihael Hategan wrote:
> On Mon, 2008-06-30 at 10:19 -0500, Mihael Hategan wrote:
>
>   
>> In terms of the scheduling, what we must keep in mind is that
>> coasters/glideins/falkons can be implemented in such a way as to ensure
>> performance is never worse than without them. 
>>     
>
> In fact, one trivial implementation of this would be to forward all
> MPI/multi-node jobs directly to the queuing system, under the assumption
> that they are sufficiently large jobs not to benefit much from queue
> bypasses.
>
>   
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>>     
>
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>   

-- 
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Ioan Raicu
Ph.D. Candidate
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Distributed Systems Laboratory
Computer Science Department
University of Chicago
1100 E. 58th Street, Ryerson Hall
Chicago, IL 60637
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Email: iraicu at cs.uchicago.edu
Web:   http://www.cs.uchicago.edu/~iraicu
http://dev.globus.org/wiki/Incubator/Falkon
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