Exclude specific nodes when sending jobs using qsub / torque?

Question

When sending batch jobs with qsub, is there a way to exclude a specific node (by host name)?

Something like

# this is just a pseudo command: qsub myscript.sh --exclude computer01 

Answer 1

Depending on how many nodes are available to you, there are several options.

You can specify a specific node by name, which is acceptable:

 qsub -l nodes=n006+n007 

To exclude, say, one node from the group, I would ask the administrator to assign a dummy property to all nodes, but the one you want to exclude. Then you can request this property.

Sources:

http://www.clusterresources.com/torquedocs21/2.1jobsubmission.shtml#nodeExamples http://www.clusterresources.com/torquedocs21/2.1jobsubmission.shtml#resources