Just to give my understanding of the problem: Am 15.11.2010 um 19:57 schrieb Terry Dontje:
> On 11/15/2010 11:08 AM, Chris Jewell wrote: >>> Sorry, I am still trying to grok all your email as what the problem you >>> are trying to solve. So is the issue is trying to have two jobs having >>> processes on the same node be able to bind there processes on different >>> resources. Like core 1 for the first job and core 2 and 3 for the 2nd job? >>> >>> --td >>> >> That's exactly it. Each MPI process needs to be bound to 1 processor in a >> way that reflects GE's slot allocation scheme. >> >> > I actually don't think that I got it. So you give two cases: > > Case 1: > $ qsub -pe mpi 8 -binding pe linear:1 myScript.com > > and my pe_hostfile looks like: > > exec6.cluster.stats.local 2 > batch.q@exec6.cluster.stats.local > 0,1 Shouldn't here two cores be reserved for exec6 as it got two slots? > exec1.cluster.stats.local 1 > batch.q@exec1.cluster.stats.local > 0,1 > exec7.cluster.stats.local 1 > batch.q@exec7.cluster.stats.local > 0,1 > exec5.cluster.stats.local 1 > batch.q@exec5.cluster.stats.local > 0,1 > exec4.cluster.stats.local 1 > batch.q@exec4.cluster.stats.local > 0,1 > exec3.cluster.stats.local 1 > batch.q@exec3.cluster.stats.local > 0,1 > exec2.cluster.stats.local 1 > batch.q@exec2.cluster.stats.local > 0,1 > > > Case 2: > Notice that, because I have specified the -binding pe linear:1, each > execution node binds processes for the job_id to one core. If I have > -binding pe linear:2, I get: > > exec6.cluster.stats.local 2 > batch.q@exec6.cluster.stats.local > 0,1:0,2 > exec1.cluster.stats.local 1 > batch.q@exec1.cluster.stats.local > 0,1:0,2 > exec7.cluster.stats.local 1 > batch.q@exec7.cluster.stats.local > 0,1:0,2 > exec4.cluster.stats.local 1 > batch.q@exec4.cluster.stats.local > 0,1:0,2 > exec3.cluster.stats.local 1 > batch.q@exec3.cluster.stats.local > 0,1:0,2 > exec2.cluster.stats.local 1 > batch.q@exec2.cluster.stats.local > 0,1:0,2 > exec5.cluster.stats.local 1 > batch.q@exec5.cluster.stats.local > 0,1:0,2 > > Is your complaint really the fact that exec6 has been allocated two slots but > there seems to only be one slot worth of resources allocated All are wrong except exec6. They should only get one core assigned. -- Reuti > to it (ie in case one exec6 only has 1 core and case 2 it has two where maybe > you'd expect 2 and 4 cores allocated respectively)? > > -- > <Mail-Anhang.gif> > Terry D. Dontje | Principal Software Engineer > Developer Tools Engineering | +1.781.442.2631 > Oracle - Performance Technologies > 95 Network Drive, Burlington, MA 01803 > Email terry.don...@oracle.com > > > > _______________________________________________ > users mailing list > us...@open-mpi.org > http://www.open-mpi.org/mailman/listinfo.cgi/users
