[Beowulf] x86-64 NUMA vs SMP kernel: appl. performance?
kus at free.net
Fri Sep 24 11:34:33 EDT 2004
I have possible choice between using of SMP or NUMA-enabled x86_64
kernels (2.4.21 from SuSE Linux 9.0 distributive). We use 2-way
Opteron-based nodes w/2 GBytes RAM per node (symmetrical DIMMs
Our applications are parallelized :-), so we have 2 "computing
per each 2-way SMP node.
Have somebody data about relative performance of applications working
under NUMA vs SMP kernels ? Quantum chemical packages like
Gaussian/Gamess-US/NWchem are the most interesting (their performance
is "memory-bounded"), but at least direct STREAM results are
Zelinsky Institute of Organic Chemistry
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