** Sorry if you get this mail twice... list was down and I don't see
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(http://gridengine.org/pipermail/users/2013-January/thread.html)

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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