[Mauiusers] FSCAP

Vaibhav Pol vaibhavp at cdac.in
Thu Jun 24 23:33:31 MDT 2010


  Dear All ,
        Can you explain me FSCAP in detail.  I am not getting is it FSCAP
  is attribute of *CFG .  Is anybody using FSCAP . It could be better if
  anyone explained me by example.


  Thanks and regards
  Vaibhav Pol
  National PARAM Supercomputing Facility
  Centre for Development of Advanced Computing


On Thu, 24 Jun 2010, Gabe Turner wrote:

> On Thu, Jun 24, 2010 at 08:59:57PM +0530, Vaibhav Pol wrote:
>>   Dear All ,
>>
>>         My FSCAP parameter is not working  , maui not  able to block users jobs
>>         below is my fairshare parameter from maui.cfg file.
>>
>>  	FSPOLICY              DEDICATEDPS
>>  	FSDEPTH               4
>>  	FSINTERVAL            00:4:00
>>  	FSDECAY               1.0
>>  	FSCAP                 10.0
>>
>>
>>  	FSWEIGHT                       100
>>  	FSUSERWEIGHT                   50
>>
>>
>>  	USERCFG[test1]      FSTARGET=25.0
>>  	USERCFG[test2]      FSTARGET=75.0
>>
>>
>>      As per my understanding
>> if( fairshare target - fairshare usage ) >= 10(i.e fscap)
>> it will block the respective user job but this is not working .  maui
>> not  blocking users jobs.
>
> No, I believe FSCAP just puts a ceiling on the farishare component of a
> job's priority.  It's not a throttling policy.
>
> -- 
> Gabe Turner                                             gabe at msi.umn.edu
> HPC Systems Administrator,
> University of Minnesota
> Supercomputing Institute                          http://www.msi.umn.edu
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