[Mauiusers] Node Allocation Problem

John W. Hall john.hall at esi-group-na.com
Mon Mar 10 07:19:59 MDT 2008


I have a cluster with 8 compute nodes, 5 of which have 4 
cores, 8gb physical memory; the others 3 have 4 cores, 
16gb physical memory (it actually says 15G configured).

I am trying to use Maui and Torque to manage this cluster. 
 However, I am having a little difficulty.

I created a couple queues, one of particular interest is
Queue serial2gig
         queue_type = Execution
         total_jobs = 0
         state_count = Transit:0 Queued:0 Held:0 Waiting:0 
Running:0 Exiting:0
         resources_max.ncpus = 1
         resources_max.neednodes = 1
         resources_max.nodect = 1
         resources_max.nodes = 1:ppn=1
         resources_max.pmem = 2gb
         resources_default.ncpus = 1
         resources_default.neednodes = 1
         resources_default.nodect = 1
         resources_default.nodes = 1:ppn=1
         resources_default.pmem = 2gb
         resources_assigned.ncpus = 0
         resources_assigned.nodect = 0
         enabled = True
         started = True

When I submit a job and specify -q serial2gig, however, 
the node that gets allocated is a 16gb physical memory 
node.  Using showconfig shows NODEALLOCATIONPOLICY[0] to 
be MINRESOURCE.

Furthermore, I wanted to try changing the policy to see 
what would happen, but the command "changeparam 
NODEALLOCATIONPOLICY[0] MAXRESOURCE" is not working.  It 
says that the parameters were successfully changed, but 
when I check, they are still the same.  I don't quite 
understand.

Can anybody shed some light?  Thanks.

John


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