Hi,

Am 09.01.2013 um 09:37 schrieb Arnau Bria:

> 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.

Yep.


> 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?

You can only reset it in `qmon` completely.


> this "divided by 2" is modificable?

Not without recompiling.


> how to see users
> resources usage in time per time window?

There is a similar command:

/usr/sge/utilbin/lx24-amd64/sge_share_mon -?


> 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%.

This happens if the sum of the values is larger than 1 in total, and it's 2 in 
your case.

In case you want to adjust it in `qmon`: it needs to be "apply" before "done".

-- Reuti


> Isn't both configurations the same? if yes, why qmon is not showing
> what I've configured?
> 
> 
> TIA,
> Arnau
> 
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