[MPICH] MPICH.NT and MPICH2 issue on Windows 2003 R2

[Watford, Christopher A (GE Infra, Energy)]

We use MPICH2 as well and applications with MPICH2 are having problems
as well on Win2k3r2. However, we have some machines still on Win2ksvr
and some on Win2k3x64, neither have this issue.
 
MPICH.NT/MPICH2 on Win2k3r2 is where we see it.
 
Now cpi.c does not exhibit this problem, however, I'm not sure exactly
how cpi.c's usage differs from our applications, but I'll have a look.
 
--
Christopher
9106755743
 


________________________________

	From: Jayesh Krishna [mailto:jayesh at mcs.anl.gov] 
	Sent: Thursday, July 19, 2007 12:45 PM
	To: Watford, Christopher A (GE Infra, Energy)
	Cc: mpich-discuss at mcs.anl.gov
	Subject: RE: [MPICH] MPICH.NT and MPICH2 issue on Windows 2003
R2
	
	
	Hi,
	 We would recommend that you migrate to MPICH2. All of our
current development efforts are going into MPICH2.
	 Meanwhile, do you have the same problem with OS flavors other
than Win 2003 R2 ? Do you see the same problem with sample MPI
applications like cpi.c ?
	 
	Regards,
	Jayesh
	
________________________________

	From: owner-mpich-discuss at mcs.anl.gov
[mailto:owner-mpich-discuss at mcs.anl.gov] On Behalf Of Watford,
Christopher A (GE Infra, Energy)
	Sent: Thursday, July 19, 2007 10:47 AM
	To: mpich-discuss at mcs.anl.gov
	Subject: RE: [MPICH] MPICH.NT and MPICH2 issue on Windows 2003
R2
	
	
	(Apologies for the double post, our email system is not the
best.)
	 
	It also appears that I have no problems submitting from host A
to host B to run (solely on host B). I can watch it work fine on host B
via the command prompt on host A (where mpiexec was called). Yet it
appears as soon as I have a job that spans two Win2k3r2 hosts I run into
a problem.
	 
	--
	Christopher
	9106755743
	 


________________________________

		From: owner-mpich-discuss at mcs.anl.gov
[mailto:owner-mpich-discuss at mcs.anl.gov] On Behalf Of Watford,
Christopher A (GE Infra, Energy)
		Sent: Thursday, July 19, 2007 10:32 AM
		To: mpich-discuss at mcs.anl.gov
		Subject: [MPICH] MPICH.NT and MPICH2 issue on Windows
2003 R2
		
		
		I've run into an interesting problem with both MPICH.NT
and MPICH2 on Windows 2003 R2. With MPICH.NT our application, given N
processors across M machines, will have at most 2 processes going at
once (across all machines). On MPICH2, if the N processors span more
than one machine nothing happens. Process 0 can make forward progress,
but no other machines talk to one another, which is similar to the
problem we are seeing with MPICH.NT, but not quite the same.
		 

		Christopher Watford
		GE-Hitachi Nuclear Energy
		E Christopher.Watford at ge.com
<mailto:Christopher.Watford at ge.com> 
		http://www.ge-energy.com/nuclear

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