Jayesh,
I did not run the program across machines.
My laptop has 8 cores, and my desktop has 4 cores. I ran the program individually
on each PC.
Here is the command line: mpiexec -user
0 -np 4 test.exe
What the program does is: Using the
main processor (imrank = 0) to create a file and write records; after that,
all processors will access this file and read the records multiple times
(Open the file in read only --> Read records --> Close file -->
Reopen --> And so on).
Thanks.
| From:
| Jayesh Krishna <jayesh@mcs.anl.gov>
|
| To:
| discuss@mpich.org,
|
| Cc:
| QJing@TrinityConsultants.com
|
| Date:
| 01/29/2013 10:24 AM
|
| Subject:
| Re: [mpich-discuss] Weird thing -- MPICH2
on domain |
Hi,
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.
How are you running your program (The complete mpiexec command and the
output. Please copy-paste it from the command window)?
Regards,
Jayesh
----- Original Message -----
From: "Qiguo Jing" <QJing@TrinityConsultants.com>
To: mpich-discuss@mcs.anl.gov
Sent: Friday, January 25, 2013 5:16:58 PM
Subject: [mpich-discuss] Weird thing -- MPICH2 on domain
All,
I have been encountering a weird thing, which draw me crazy. I hope someone
here can help me.
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.
1. If I connect the internet cable on laptop. --> Program works. Results
are good.
2. If I disconnect the internet cable on laptop. --> Program fails,
saying Program Exception - access violation
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.
4. If I disconnect the internet cable on Desktop. -> Program works.
Results are good.
Can someone help?
Thanks.
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