[torqueusers] Node np parameter adjusted automatically since 2.1.x ?
martin.schaffoener at e-technik.uni-magdeburg.de
Thu Jun 15 02:23:27 MDT 2006
we have a bunch of dual xeon nodes which have hyperthreading enabled (it
actually gives some performance improvement especially when memory-bandwidth
limited apps run). So there are virtually 4 processors in each node, but we
used to limit the number of processes by setting the np=2 parameter in the
After upgrading to 2.1.x (actually 2.1.1snap), I saw 4 processes being
scheduled on these nodes. Upon investigating, I found that the
server_priv/nodes file have automatically been adjusted to np=4 for the
respective nodes. That was not what I wanted. Is there any way to prevent
this behavior and fix this parameter to what the admin says rather than what
the moms say?
I know, mom is always right...
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Communication Technologies, Department of Electrical Engineering,
Otto-von-Guericke University Magdeburg
Phone: +49 391 6720063
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