The linky Rayson shows below works great.
I am converting from Torque/Maui to Grid Engine and the one thing that I missed the most
in Torque was the ability to easily request "whole nodes".
I should add that the link below works *BUT* you will not able to use it with
Subordinate queues.
What happens is that once a subordinate queue grabs a node in exclusive node,
it wont let it go and so jobs cannot be suspended so that the higher priority
queue can run.
If anyone knows how to grab exclusive nodes with subordinate queues that can be
suspend please speak up :-)
Joseph
On 08/22/2012 12:42 PM, Rayson Ho wrote:
There's Exclusive Scheduling for allocating the whole node:
http://docs.oracle.com/cd/E24901_01/doc.62/e21978/management.htm#sthref431
Rayson
On Wed, Aug 22, 2012 at 3:39 PM, Henrichs, Juryk
<juryk.henri...@gl-group.com> wrote:
Hi,
we have a heterogeneous cluster consisting of nodes with 32 and 48
cpu's. Some of our jobs are best run either on one complete node or
distributed over a number of nodes. In either case it is desired that
the job runs exclusively on each node and uses all available slots.
The reason for this is that we use mpirun with --mca mpi_paffinity_alone
1 as this gives the best performance.
The problem is, that up to now we have to take care on which type of
nodes a job is running and that jobs are not distributed over mixed nodes.
Is there a way to submit jobs with a somehow flexible number of slots
such that only complete nodes are allocated?
I am aware of the $pe_slots allocation rule, but as I understand it, a
job which requests more slots than available on one single node will
never get started.
Juryk
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