[GE users] SGE-6.0u6: Limit the number of concurrently running array jobs?

Andrea Lorenz lorenz at rz.rwth-aachen.de
Wed May 17 13:22:50 BST 2006


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Hello Erik,

take a look at the manual page sge_conf

max_aj_instances
       This parameter defines the maximum amount of array task  to  be  
scheduled  to  run
       simultaneously  per array job.  An instance of an array task will 
be created within
       the master daemeon when it gets a start order from the scheduler. 
The instance will
       be  destroyed  when  the  array task finishes.  Thus the 
parameter provides control
       mainly over the memory consumption of array jobs in the master 
and  scheduler  dae-
       mon.  It  is  most  useful  for very large clusters and very 
large array jobs.  The
       default for this parameter is 2000. The value 0 will deactivate 
this limit and will
       allow  the  scheduler  to  start  as many array job tasks as 
suitable resources are
       available in the cluster.


Andrea

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