<font size=2 face="sans-serif">Jayesh,</font>
<br>
<br><font size=2 face="sans-serif">I tried the latest windows version 1.4.1p1
of MPICH2. The same error. </font>
<br>
<br><font size=2 face="sans-serif">Thinking that I may need to modify my
codes. It seems that using one processor to create a file then reading
the file through all processors will generate such kind of errors. </font>
<br>
<br><font size=2 face="sans-serif">Thanks. </font>
<br>
<br>
<br>
<table width=100%>
<tr valign=top>
<td><font size=1 color=#5f5f5f face="sans-serif">From:</font>
<td><font size=1 face="sans-serif">Jayesh Krishna <jayesh@mcs.anl.gov></font>
<tr valign=top>
<td><font size=1 color=#5f5f5f face="sans-serif">To:</font>
<td><font size=1 face="sans-serif">discuss@mpich.org, </font>
<tr>
<td valign=top><font size=1 color=#5f5f5f face="sans-serif">Cc:</font>
<td><font size=1 face="sans-serif">QJing@TrinityConsultants.com</font>
<tr valign=top>
<td><font size=1 color=#5f5f5f face="sans-serif">Date:</font>
<td><font size=1 face="sans-serif">01/29/2013 01:53 PM</font>
<tr valign=top>
<td><font size=1 color=#5f5f5f face="sans-serif">Subject:</font>
<td><font size=1 face="sans-serif">Re: [mpich-discuss] Weird thing -- MPICH2
on domain</font></table>
<br>
<hr noshade>
<br>
<br>
<br><tt><font size=2>Hi,<br>
Can you try out the latest Windows version, 1.4.1p1, of MPICH2 (</font></tt><a href=http://www.mpich.org/downloads/><tt><font size=2>http://www.mpich.org/downloads/</font></tt></a><tt><font size=2>)?<br>
I don't remember when we changed the default channel on Windows from sock
to nemesis. This could be the issue in your case. Please try the latest
version available and let us know the results.<br>
<br>
Regards,<br>
Jayesh<br>
<br>
----- Original Message -----<br>
From: "Qiguo Jing" <QJing@TrinityConsultants.com><br>
Cc: discuss@mpich.org, discuss-bounces@mpich.org<br>
Sent: Tuesday, January 29, 2013 12:44:55 PM<br>
Subject: Re: [mpich-discuss] Weird thing -- MPICH2 on domain<br>
<br>
<br>
Scott, <br>
<br>
With and without the wired connection, laptop has the same hostname, and
desktop has the same hostname. But laptop and desktop have different hostnames.
<br>
<br>
I am using mpich2-1.2.1-win-ia32.msi on both machines. Laptop is win7 64,
and desktop is win7 32. <br>
<br>
Another issue is: When I use laptop from home, if I use 3 or less processors,
for example "mpiexec -user 0 -np 3 test.exe", it works; however,
if I use more than 3 processors, for example, "mpiexec -user 0 -np
4 test.exe", it fails, and the more processors I specified, the earlier
I can see it fails. <br>
<br>
Best, <br>
<br>
<br>
From: "Atchley,
Scott" <atchleyes@ornl.gov> <br>
To: "discuss@mpich.org"
<discuss@mpich.org>, <br>
Date: 01/29/2013
11:41 AM <br>
Subject:
Re: [mpich-discuss] Weird thing -- MPICH2 on domain <br>
Sent by:
discuss-bounces@mpich.org <br>
<br>
<br>
<br>
<br>
Is it a hostname issue? <br>
<br>
What is the hostname on both machines with and without the wired connection?
<br>
<br>
What does hydra expect to use? <br>
<br>
Scott <br>
<br>
On Jan 29, 2013, at 11:24 AM, Jayesh Krishna <jayesh@mcs.anl.gov>
wrote: <br>
<br>
> Hi, <br>
> Is there any communication (MPI) between the laptop and the desktop?
MPICH2 currently does not support running MPI programs across 32-bit and
64-bit machines. <br>
> How are you running your program (The complete mpiexec command and
the output. Please copy-paste it from the command window)? <br>
> <br>
> Regards, <br>
> Jayesh <br>
> <br>
> ----- Original Message ----- <br>
> From: "Qiguo Jing" <QJing@TrinityConsultants.com>
<br>
> To: mpich-discuss@mcs.anl.gov <br>
> Sent: Friday, January 25, 2013 5:16:58 PM <br>
> Subject: [mpich-discuss] Weird thing -- MPICH2 on domain <br>
> <br>
> <br>
> All, <br>
> <br>
> I have been encountering a weird thing, which draw me crazy. I hope
someone here can help me. <br>
> <br>
> I have two computers, a laptop (Windows 7 64 bit) and a desktop (Window
7 32 bit). Both are in company domain, and I use the some information to
login. So the MPICH2 registration information are the same for both computers.
I developed a parallel FORTRAN program using my laptop. <br>
> <br>
> 1. If I connect the internet cable on laptop. --> Program works.
Results are good. <br>
> 2. If I disconnect the internet cable on laptop. --> Program fails,
saying Program Exception - access violation <br>
> 3. If I connect the internet cable on Desktop. --> Program runs
and finishes, but the results are wrong. Slave processors and master processor
do not communicate, so that results on slave processor can not be passed
to main processor. <br>
> 4. If I disconnect the internet cable on Desktop. -> Program works.
Results are good. <br>
> <br>
> <br>
> Can someone help? <br>
> <br>
> <br>
> Thanks. <br>
> _________________________________________________________________________
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