[Mauiusers] Re: [torqueusers] maui + torque job start rate

Bas van der Vlies basv at sara.nl
Thu Apr 2 00:46:36 MDT 2009


On Apr 1, 2009, at 5:24 PM, Tom Rudwick wrote:

> If you search the maui list archives for my c job start patch
> you can increase that speed greatly.
>
> Tom
>
>

Tom,

  Just a question.  Can we make it a maui option? So we can choose  
asynchronous job start and the benefit is it will be applied to the  
maui source ;-) So everybody can use it.


Regards,

> Stijn De Weirdt wrote:
>> hi all,
>>
>> (this is a crosspost to both maui and torque users list)
>>
>> we are having issues with the job start rate using maui+torque.  
>> starting
>> a job takes on average 2 seconds, which is slow for what our users  
>> are
>> dumping in our queues.
>>
>> with a job start i mean the following cycle
>> 04/01 10:01:08 MRMJobStart(374900,Msg,SC)
>> 04/01 10:01:08 MPBSJobStart(374900,gengar,Msg,SC)
>> 04/01 10:01:08
>> MPBSJobModify(374900,Resource_List,Resource,node088.gengar.gent.vsc)
>> 04/01 10:01:10 MPBSJobModify(374900,Resource_List,Resource,1)
>> 04/01 10:01:10 INFO:     job '374900' successfully started
>> 04/01 10:01:10 INFO:     command sent to server
>> 04/01 10:01:10 INFO:     response received from server
>>
>> i've already tried to follow the "large cluster" tuning tips to see  
>> if
>> it helps, but no real result. (the only tip that might solve the
>> problemn is the asyncstart option from moab ;). (we have a 200  
>> node, 8
>> core/node cluster (i actually don't think this is "large"))
>>
>> anyway, before i dig in the code looking for options, i'm wondering  
>> what
>> other people are seeing as minimal start time, so i know if it is
>> possible at all.
>>
>> many thanks,
>>
>> stijn
>>
>
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--
Bas van der Vlies
basv at sara.nl





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