PBS

Joey Raheb joeyraheb at usa.net
Wed Jun 13 12:36:59 EDT 2001


I've posted this message up a couple of times already with no response, I'll
try one more time.  I would like to try something new with PBS.  We will soon
be adding more computers to our cluster and therefore will require another
switch.  Since the bottleneck in the communication exists in the switch-switch
communication (1000 MB/s duplex) we would like to run all parallel jobs within
the same switch since bandwidth is near theoretical max within the switch.  My
idea was to create two execution queues named switch1 and switch2 (each would
only send jobs to nodes on each respective switch) and one route queue which
would direct jobs to either switch1 or switch2 depending on the number of
nodes requested and the free number of nodes available.  I thought there would
be an easy way to do this, but I am finding that there might not be.  Maybe
PBS is not the correct queueing system, does anybody have any suggestions or
ideas of how I can implement the above??

Joey

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