[GE users] Running MPICH jobs

Reuti reuti at staff.uni-marburg.de
Tue May 2 09:20:59 BST 2006


Hi,

Am 02.05.2006 um 09:45 schrieb Duong Ta:

> Dear Rayson,
>
> After I changed the slots attribute, the output of qstat -f is as  
> follows:
>
> queuename                      qtype used/tot. load_avg  
> arch          states
> ---------------------------------------------------------------------- 
> ------
> all.q at viz001.ihpc.a-star.edu.s BIP   0/4       1.03     lx24-amd64
> ---------------------------------------------------------------------- 
> ------
> all.q at viz002.ihpc.a-star.edu.s BIP   0/4       1.00     lx24-amd64
>
> Then I am able to run over SGE a tightly-integrated MPI job that  
> requires 4 slots, plus a few more batch jobs at the same time. That  
> means the trick worked, i.e., the system now has 8 "fake" slots,  
> however, I could not run MPI jobs requiring more than 4 slots  
> (which is the number of "real" slots in the system). Any advice?

which allocation_rule did you specify in your PE definition? For your  
application it should be $round_robin or $fill_up.

-- Reuti


>
> Thank you very much.
>
> Best regards,
> Duong
>
>
> On 5/2/06, Rayson Ho <rayrayson at gmail.com> wrote: You can change  
> the "slots" attribute, something like:
> http://gridengine.sunsource.net/servlets/ReadMsg? 
> list=users&msgNo=13087
>
> Rayson
>
>
>
> On 5/1/06, Duong Ta <duongtnb at gmail.com> wrote:
> > Dear,
> >
> > I'd like to run a MPICH job over tight-integration with SGE that  
> needs to
> > start 7 processes (1 master, 6 slaves) in total. However, my  
> cluster only
> > has 4 slots (2 dual-core execution hosts). Is there any trick to  
> force SGE
> > to start more than one MPI processes on a slot?
> >
> > Best regards,
> > Duong
> >
>
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