[mvapich-discuss] MV2_CPU_MAPPING doesn't work on all the nodes

[Jonathan Perkins]

On Mon, Jun 25, 2012 at 11:32:47AM -0400, Jonathan Perkins wrote:
> Hello, can you try using mpirun_rsh to see if you get different
> results.  Your command should be...
> 
> mpirun_rsh -n 32 -hostfile mfile.1 MV2_CPU_MAPPING 0:1:2:3:6:7:8:9 ./namd2

Sorry, it should be...
mpirun_rsh -n 32 -hostfile mfile.1 MV2_CPU_MAPPING=0:1:2:3:6:7:8:9 ./namd2

> 
> On Fri, Jun 22, 2012 at 11:04 PM, Ju JiaJia <jujj603 at gmail.com> wrote:
> > Hi all:
> >
> > I'm running a program with 32 processes on 4 nodes using 8 cores each . Each
> > node has two 6-core Xeon processor and all nodes is free. Running command:
> > mpiexec -n 32 -hostfile mfile.1 -env MV2_CPU_MAPPING 0:1:2:3:6:7:8:9 ./namd2
> > apoa1.namd
> >
> > Here is mfile.1:
> > [Sat Jun 23 10:41:38]user39 at m1:bin$ cat mfile.1
> > c04b04:8
> > c04b05:8
> > c04b06:8
> > c04b07:8
> >
> > After subbmitting the job, i logon to the nodes in mfile.1, i find not all
> > nodes use the cores as i specified. C04b04 use  0:1:2:3:6:7:8:9, but the
> > last three don't. I didn't change MV2_ENABLE_AFFINITY, so it's 1 by default.
> > Why MV2_CPU_MAPPING won't work ?
> >
> > _______________________________________________
> > mvapich-discuss mailing list
> > mvapich-discuss at cse.ohio-state.edu
> > http://mail.cse.ohio-state.edu/mailman/listinfo/mvapich-discuss
> >
> 
> 
> 
> -- 
> Jonathan Perkins
> http://www.cse.ohio-state.edu/~perkinjo

-- 
Jonathan Perkins
http://www.cse.ohio-state.edu/~perkinjo