[mpich-discuss] issue setting process-core mapping with hydra

Wed Nov 10 08:05:58 CST 2010

On 11/10/2010 08:02 AM, sreeram potluri wrote:
> I am cc'ing Jonathan in this email. I think he should be able to get you
> access.

I already have an account. I just need to know if I need to reserve 
machines in some way, or just salloc them and use them.

Btw, it seems to work fine on the login node:

/home/balaji/software/mpich2/mpich2-trunk-r7431
#wci-login# Wed Nov 10 09:01> ./bin/mpiexec -f ~/hosts -n 2 -binding 
user:0,1 ./examples/cpi
Process 0 of 2 is on wci-login.cse.ohio-state.edu
Process 1 of 2 is on wci-login.cse.ohio-state.edu
pi is approximately 3.1415926544231318, Error is 0.0000000008333387
wall clock time = 0.001009

/home/balaji/software/mpich2/mpich2-trunk-r7431
#wci-login# Wed Nov 10 09:04> cat ~/hosts
wci-login
127.0.0.1

  -- Pavan

-- 
Pavan Balaji
http://www.mcs.anl.gov/~balaji