Hi,
I've configured our cluster so it uses Simple equal user sharetree
policy
(http://www.gridengine.info/2006/01/17/simple-equal-user-sharetree-policy/) :
>From sge_sched_conf:
halftime
When executing under a share based policy, the scheduler "ages" (i.e.
decreases) usage to implement a sliding window for achieving the share entitle-
ments as defined by the share tree. The halftime defines the time
interval in which accumulated usage will have been decayed to half its
original
value. Valid values are specified in hours or according to the time
format as specified in queue_conf(5).
If the value is set to 0, the usage is not decayed.
So, It reduces the impact accrued resource consumptions over the time.
the example shows 1000 units and halflife of 7 days:
500 after 7 days
250 after 14 days
125 after 21 days
62.5 after 28 days
But, how many "time windows" does it take in consideration? 5? is it
configurable? this "divided by 2" is modificable? how to see users
resources usage in time per time window?
I've configured (using qconf):
usage_weight_list cpu=1.000000,mem=1.000000,io=0.000000
but when I open qmon->Policy->Share tree policy->botom-right arrow I
see "Share tree policy parameters" (CPU,MEM,IO) all at 33%.
Isn't both configurations the same? if yes, why qmon is not showing
what I've configured?
TIA,
Arnau
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