[mpich-discuss] How I can set where node (Host) master (rank 0) will execute?

jayesh at mcs.anl.gov jayesh at mcs.anl.gov
Mon Aug 9 10:47:04 CDT 2010


Hi,
 The first MPI process (rank=0) is launched on the first node listed in the machine file (mpiexec -n 2 -wdir "E:\mpi" -channel nemesis -machinefile mf.txt -noprompt hdspasrvr.exe ; where mf.txt contains the hostnames, RETF-PERSONAL & DEV-01).
 You can also specify the number of processes to be launched on each host in the machinefile. See Section 9.6 in the windows developer's guide for details - http://www.mcs.anl.gov/research/projects/mpich2/documentation/files/mpich2-1.2.1-windevguide.pdf . Let us know if you need further help.

Regards,
Jayesh
----- Original Message -----
From: "Renato Tegon Forti" <re.tf at acm.org>
To: mpich-discuss at mcs.anl.gov
Sent: Saturday, August 7, 2010 1:19:54 PM GMT -06:00 US/Canada Central
Subject: [mpich-discuss] How I can set where node (Host) master (rank 0) will execute?









Hi MPI Experts, 



How I can set where node (Host) master (rank 0) will execute? 



I using MPICH on Windows (MPIExec) 



mpiexec.exe -wdir "E:\mpi" -env MPICH2_CHANNEL nemesis -hosts 2 RETF-PERSONAL 1 DEV-01 1 -noprompt "hdspasrvr.exe" 



I want that master (rank 0) execute always in DEV-01 machine 



Thanks 

---- 

Renato Tegon Forti 


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