[GE users] priority and nice
work at infomaniak.ch
Tue Sep 21 20:03:27 BST 2004
> Hi Cedric,
>>I installed sge on a parc of 60 workstations. This are _workstation_
>>meaning that people use them to edit text, browse the web and do some
>>And some users will have to launch 400 tasks which will take about 20
>>hours each. And I'm wondering how to do to set the nice to 20 by sge so
>>the main user of the workstation where this tasks compute will not be
>>ennoyed because the workstation slow down.
>>Tell me if, this is the good solution, and if so how can I achieve this.
> you can still set the priority in a queue definition to 19 in 6.0 by setting
> the reprioritize_interval to 00:00:00. If you have machines with one or two
> CPUs (as I assume for your workstations) the scheduling can't make much of it
> anyway - (in contrast to a SMP machine with 64 CPUs).
1) If I do what you've said, should I see a nice of 19 to this process ?
if it's the case, this is not working : (
2) this is what I have in my configuration
> qconf -sconf global | grep prio
> qconf -ssconf | grep prio
> qconf -sq <a_queue> | grep prio
Am I missing something
3) after digging a little bit the man
The priority parameter specifies the nice(2) value at which
jobs in this queue will be run. The type is number and the
default is zero (which means no nice value is set expli-
citly). Negative values (up to -20) correspond to a higher
scheduling priority, positive values (up to +20) correspond
to a lower scheduling priority.
The value of priority has no effect because SGE adjusts
priorities dynamically to implement the SGE entitlement pol-
icy goals. Dynamic priority adjustment can be switched off,
by setting the reprioritize_interval to 00:00:00, which is
the default value. In this case, the setting of priority
also will haven't an effect.
So what shall I do ?
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