[Mauiusers] Re: [torqueusers] maui + torque job start rate
tomr at intrinsity.com
Thu Apr 9 10:16:55 MDT 2009
If you mean the second MPBSJobModify, my understanding is that that call
to work around an old bug in PBS.
Ling C. Ho wrote:
> Hi Tom,
> In your patch, you have commented out both MPBSJobModify calls before
> and after pbs_asystart(). I can understand the first MPBSJobStart()
> which set the node where the job should run. What is the purpose of
> the second MPBSJobStart as it set the neednodes to 1?
> Tom Rudwick wrote:
>> If you search the maui list archives for my asynchronous job start patch
>> you can increase that speed greatly.
>> 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.
>>> 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
>>> 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
>>> other people are seeing as minimal start time, so i know if it is
>>> possible at all.
>>> many thanks,
>> torqueusers mailing list
>> torqueusers at supercluster.org
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