As pointed out by Lucasz, fork jobs run directly on the node on which GRAM services (head-node)are deployed and not on the compute nodes (where scheduled jobs run). This behavior is often useful when you have your headnode doubling up as a compile node. If for some reason, I would want my code to say compile, only on the headnode and not on a compute node, I would then submit the job to the fork jobmanager.

Regards,
Prashanth Chengi
National PARAM SuperComputing Facility
System Administration and Networking Group
C-DAC Pune
Phone: 02025704197

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and not please ourselves.
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On Thu, 13 May 2010, Lukasz Lacinski wrote:

Exactly. Jobs submitted to the fork job manager are executed immediately. For 
example when you submit quickly five jobs taking 60 secs (let's say `/bin/sleep 
60`) all of these jobs will be executed immediately on the node with GRAM 
service, run simultaneously and share resources for about 60 secs.

Lukasz


On May 13, 2010, at 3:00 PM, [email protected] wrote:

Hi

Can someone tell me what the charakteristics of the fork jobmanager are? I read in a 
description "unscheduled local execution" does that mean that this jobmanager 
has no scheduling function? just immediate execution of the job - something like FIFO?

thx
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