across the nodes, namd jobs don't get enough CPU!

From: M. Madhu (
Date: Fri Jul 07 2006 - 11:00:59 CDT


We are using NAMD_2.6b1_Linux-amd64-TCP on linux machines.

When NAMD jobs run on a single node, each processor (each node has 4
gets nearly 100% CPU. But when the jobs run accross the nodes (ie., when I
more than 4 processors), except one, all other processors get less than 5%
of the
CPU. (At the same time, parallel gromacs jobs across the nodes get nearly
100% CPU.)

Did anyone observe this kind of problem? Or, is there any solution for this
type of

Thank you.


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