[mpich-discuss] The working of mapall option on windows

[jayesh at mcs.anl.gov]

Hi,
 Can you provide the complete mpiexec command that you use to launch your MPI program ? Are you running the MPI jobs locally on each machine (MPI processes belonging to the job are launched only on the localhost)?

Regards,
Jayesh
----- Original Message -----
From: "Jeyapandian Kottalam" <JKottalam at reactiondesign.com>
To: mpich-discuss at mcs.anl.gov
Sent: Wednesday, March 17, 2010 10:49:31 AM GMT -06:00 US/Canada Central
Subject: [mpich-discuss] The working of mapall option on windows





Hi 



I have built my program with MPICH2 1.0.8p1 on Windows XP. My input and output files are on mapped drives. I run the program on two different Windows XP machines and get different behaviors. On one machine, I can run the program with or without the –mapall option on mpiexec. On the other machine, the program works only with the –mapall option. On both machines the drives are always mapped at the OS level. Both machines are configured identically as far as I can tell; in fact one was cloned from the other. For supporting my users, I would like to understand why it works on one machine without the –mapall option but not on the other. Where would I look for the differences in configuration? 



Thanks 

Kottalam 
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