Per ticket #3108, there were still some unfortunate bugs in the affinity code
in 1.6. :-(
These have now been fixed. ...but since is the 2nd or 3rd time we have "fixed"
the 1.5/1.6 series w.r.t. processor affinity, I'd really like people to test
this stuff before it's committed and we ship 1.6.1. I've put tarballs
containing the fixes here:
http://www.open-mpi.org/~jsquyres/unofficial/
Can you please try mpirun options like --bind-to-core and --bind-to-socket and
ensure that they still work for you? (even on machines with hyperthreading
enabled, if you have access to such things)
IBM: I'd particularly like to hear that we haven't made anything worse on POWER
systems. Thanks.
--
Jeff Squyres
[email protected]
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