[mpich-discuss] Windows/Linux MPICH2

[Jayesh Krishna]

Hi,
 Yes, MPICH2 currently does not support heterogeneous machine configurations (You cannot run your MPI program across 32-bit/64-bit machines/data-models). You should use IA32 version of MPICH2 on the windows 7 machine.
 Also make sure that you have configured the unix boxes to use sock (--with-device=ch3:sock) as the channel (the default is nemesis).
 Make sure that you don't have firewalls running on any machines.
 Let us know the results.

Regards,
Jayesh
----- Original Message -----
From: "Matthew Chambers" <matthew.chambers at vanderbilt.edu>
To: mpich-discuss at mcs.anl.gov
Sent: Thursday, March 18, 2010 11:30:48 AM GMT -06:00 US/Canada Central
Subject: [mpich-discuss] Windows/Linux MPICH2


Hi, 

I'm trying to get a cluster working with three types of nodes: 64-bit CentOS 5.4, 64-bit Windows 7, and 32-bit Fedora 8. The 32-bit machines can't run a 64-bit OS so I'm stuck with 32-bit. I'm trying to do this with SMPD but having trouble. Am I correct in thinking that I have to use/compile the 32-bit version of MPICH2 on the 64-bit machines? 

It appears that I can't use the Windows node as the typical head node because it needs to map a network drive with different user credentials in order to run. So I'm back to using the CentOS box as a head node. However, when I try to run a job which includes the Windows node, the job hangs. 

"smpd -status <windows-hostname>" works as expected from the CentoOS box 
"smpd -status <centos-hostname>" works as expected from the Windows box 

But trying to run a job and it hangs after outputting "Process #1 (<windows-hostname>) has started." 

I've attached the SMPD debug logs for both the CentOS and Windows boxes. I've tried both 1.2.1p1 and 1.3a1 with the same result. 

Thanks, 
Matt 

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