[torqueusers] CPU affinity for SMP nodes

antst antst at mail.ru
Wed Apr 26 04:14:28 MDT 2006


Hello,

It is just suggestion, but it would be nice to have implemented in
Torque mechanism to control CPU affinity on shared memory nodes. This
should make a bit more controllable behavior of users jobs on SMP nodes.
This should reduce interference between different jobs working on the
same node. In  principal, it shouldn't be very difficult, in the
simplest approach, mom can just keep table of  CPUs with ""busy"/"free"
status and set affinity for new jobs according to this table, and mark
this CPUs as "busy". There is only one possible problem, to keep
information about managed affinity, when you restart mom.

Anton Starikov.



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