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Subject: [OMPI users] what is a "node"?
From: Zbigniew Koza (zzkoza_at_[hidden])
Date: 2012-08-30 05:37:43


consider this specification:

"Curie fat consists in 360 nodes which contains 4 eight cores CPU
Nehalem-EX clocked at 2.27 GHz, let 32 cores / node and 11520 cores for
the full fat configuration"

Suppose I would like to run some performance tests just on a single
processor rather than 4 of them.
Is there a way to do this?
I'm afraid specifying that I need 1 cluster node with 8 MPI prcesses
will result in OS distributing these 8 processes among 4
processors forming the node, and this is not what I'm after.

Z Koza