[GE users] Dynamic queue -- sge schedule policy

Eric Zhang maillistbox at 126.com
Fri Aug 25 11:20:32 BST 2006


Hi, Reuti:

    Thanks. I have got it.

Reuti wrote:
> Hi,
> 
> Am 25.08.2006 um 03:54 schrieb Eric Zhang:
> 
> >
> > Hi, Reuti:
> >
> >     I have read your suggestions, thanks. But I still have problems  
> > with
> > this:
> >
> > ////////////////////////////////////////////////////////////////////// 
> > ////////////////////////////////////
> > For the jobs with 16G request, use a second queue but attach only the
> > @mem16, and subordinate the first queue. As only jobs on the same
> > host are suspended, it should be sufficient to simply subordinate the
> > compete other queue.
> > ////////////////////////////////////////////////////////////////////// 
> > ////////////////////////////////////
> >
> > Does this mean when I submit a 16G job, the 4G jobs will be suspended
> > and trigger a reschedule/restart event? How does the sge reach this?
> > Just define 16G queue as a subordinate queue of the first queue?
> 
> In the 16G queue, the queue definition should contain:
> 
> subordinate_list      my_4G_queue
> 
> This way, the jobs will be suspended (by sending a sigstop signal to  
> the processgroup) - that's all.
> 
> If you want them to be rescheduled, you must use a checkpointing  
> interface in addition and define the triggering event for the  
> migration: "when x" like explained in "man checkpoint".
> 
> > In more details, I don't know what this sentence means:
> >
> > "As only jobs on the same host are suspended, it should be  
> > sufficient to
> > simply subordinate the compete other queue."
> 
> Just ignore it - it was a wrong idea - sorry.
> 
> -- Reuti
> 
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