[GE users] powered off nodes and SGE

reuti reuti at staff.uni-marburg.de
Tue Aug 10 10:12:21 BST 2010


Am 10.08.2010 um 07:49 schrieb hamedfarsi:

> 1) can sge understand that a node is powered off ? i mean is there any state for this purpose ?

from SGE's point of view, there is no difference between a a) powered-off node and a node where b) sge_execd is not running (any more). Hence both situation will show up as "au" (alarm, unavailable) `qstat -f` and dashes in `qhost`for this machine's loads.

> 2) when a node is powered off , scheduler ignore that node or still schedule jobs on that node ? 

No, it won't schedule any job to it. OTOH, when a node shuts down while it's running a job, SGE can be configured to reschedule the job to a different node to restart from the beginning.

-- Reuti


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