[Beowulf] MPI performance gain with jumbo frames

Jorge Salamero Sanz bencer at cauterized.net
Mon Jun 11 07:33:13 EDT 2007


hi all,

new to this list, so don't know if this is offtopic.

i'd like to know experiences about MPI performance gain with jumbo frames. i
manage a beowulf cluster (42 athlon xp, gentoo linux) with gigabit ethernet
where fluent, openfoam and other mpi apps are run.

with NFS i'm sure wich kind of gain i would have, but with MPI apps i'm
worried about after seeing this page
http://www.scl.ameslab.gov/Projects/IBMCluster/Benchmarks.html

regards



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