[mpich-discuss] Errors in running example code in MPICH2 under windows

Mon Aug 18 10:19:06 CDT 2008

Hi,
 I am not sure what the cause of the errors might be.

# Do you get the error with "windows firewall" (or any 3rd party firewall 
s/w) turned off ?
# Are you able to run cpi.exe (MPICH2\examples\cpi.exe) with more than 1 
processes (mpiexec -n 6 cpi.exe)?
# Is it possible for you to send us a test program (source code) that 
demonstrates the problem ?

Regards,
Jayesh

  _____

From: 陈斯韦 [mailto:playcsw1984 at hotmail.com]
Sent: Monday, August 18, 2008 9:50 AM
To: Jayesh Krishna
Subject: RE: [mpich-discuss] Errors in running example code in MPICH2 under 
windows

Hello

Now I have programed an MPI function and debug it. But I meet another 
problem.

When I choose the number of processes is 1. The program provide the correct 
answer as we expected. But when I choose other number of processes it will 
provide error informations. You can find 2 bmp image files in the attachment 
of this e-mail. The 1processes provide the right answer and the 6processes 
provide the error information.

I would like to know what may cause this? Errors in programming?

  _____

From: jayesh at mcs.anl.gov
To: playcsw1984 at hotmail.com
Subject: RE: [mpich-discuss] Errors in running example code in MPICH2 under 
windows
Date: Wed, 30 Jul 2008 11:43:16 -0500

Hi,
 The difference in size could be due to different settings in the compiler 
(or a newer/older version of the compiler). As long as you can run your code 
you should be ok.
 The firewall could be prompting the user (notifying the user) but not 
blocking the program (Check the firewall settings).

Regards,
Jayesh

  _____

From: 陈斯韦 [mailto:playcsw1984 at hotmail.com]
Sent: Wednesday, July 30, 2008 11:28 AM
To: Jayesh Krishna
Subject: RE: [mpich-discuss] Errors in running example code in MPICH2 under 
windows

I will try it. Thank you for your help.

Another question is I find the example cpi.exe is 84kb and I use the code( 
provided in the example icpi.c ) to rebuild it in a new project. The size of 
the cpi.exe is only 29kb. What may cause this? When I debug it, the firewall 
stop the Process Launcher for MPICH2 applications. But the program still can 
run.

  _____

From: jayesh at mcs.anl.gov
To: playcsw1984 at hotmail.com
Subject: RE: [mpich-discuss] Errors in running example code in MPICH2 under 
windows
Date: Tue, 29 Jul 2008 10:44:03 -0500

Hi,
 Did you try adding mpiexec.exe (process launcher) & smpd.exe (process 
manager) into the 'Exceptions' list of the windows firewall (You might also 
want to add your executable to the list) ?

Regards,
Jayesh

  _____

From: 陈斯韦 [mailto:playcsw1984 at hotmail.com]
Sent: Tuesday, July 29, 2008 8:08 AM
To: Jayesh Krishna
Subject: RE: [mpich-discuss] Errors in running example code in MPICH2 under 
windows

Thank you for your help.

Now I am able to run the cpi.exe. But I meet another problem.

I am a postgraduate student and doing my final project in the lab of the 
university. In this way I do not have the admin account of the computer. And 
my teacher do not allowed to turn of the firewall because of the potential 
damage to the computer. Since this, every time I run one program, I need my 
teacher to unblock the program. ( The program is blocked by the windows 
firewall. we can set to allowed it as a trust program to run) . It became 
very inconvenient that every time I do a little change and create a new exe 
my teacher should help me to unblock it.

I would like to know is there any settings that can help me to set with out 
turn of the windows firewall but can run the program?  My computer's 
operation is Windows XP Profession.
And the firewall is the windows firewall.

The firewall block ' Process Launcher for MPICH2 applications'

I am looking forward to hearing from you.

  _____

From: jayesh at mcs.anl.gov
To: playcsw1984 at hotmail.com
Subject: RE: [mpich-discuss] Errors in running example code in MPICH2 under 
windows
Date: Thu, 24 Jul 2008 10:34:31 -0500

Hi,
 You should disable any firewalls running in your system (see section on 
using windows firewall with MPICH2 in the windows developer's guide, 
available at 
http://www.mcs.anl.gov/research/projects/mpich2/documentation/index.php?s=docs, 
in section 'Runtime environment' --> Firewall)
 Try running your MPI program from the command prompt (mpiexec -n 2 
hello.exe).

Regards,
Jayesh

  _____

From: 陈斯韦 [mailto:playcsw1984 at hotmail.com]
Sent: Thursday, July 24, 2008 4:36 AM
To: Jayesh Krishna
Subject: RE: [mpich-discuss] Errors in running example code in MPICH2 under 
windows

HI,

When I use wmpiexec to run my example project.  I click the Show command and 
the command is as follows : 'C:\Program Files\MPICH2\bin\mpiexec.exe' -n 
  -noprompt 'C:\Documents and Settings\sc\My 
Documents\hello\bin\Debug\hello.exe'

But when I click the Execute button. No response.  Then I click Run in a 
separate window. The window will flash and then closed, no error 
information. (The window only exist for about one second..)

I would like to know what will cause this? A firewall?

Thank you for your help.

  _____

From: jayesh at mcs.anl.gov
To: playcsw1984 at hotmail.com
CC: mpich-discuss at mcs.anl.gov
Subject: RE: [mpich-discuss] Errors in running example code in MPICH2 under 
windows
Date: Wed, 23 Jul 2008 10:30:22 -0500

Hi,
 Yes, you can run your MPI program using the mpiexec wrapper (wmpiexec). The 
mpiexec wrapper invokes (under the hood) mpiexec to launch your MPI job 
(Click on 'Show command' button to see the full command).

(PS: Click on 'Run in a separate window' option if you program requires 
input from stdin)

Regards,
Jayesh

  _____

From: 陈斯韦 [mailto:playcsw1984 at hotmail.com]
Sent: Wednesday, July 23, 2008 7:20 AM
To: Jayesh Krishna
Subject: RE: [mpich-discuss] Errors in running example code in MPICH2 under 
windows

Thank you for your help.

I would like to know whether I can run the  processes in this way:

I debug a program and get a .exe .For example, hello.exe.

Then I use the MPICHEXEC wrapper to load the hello.exe and choose number of 
process  equal to 2.  Then press execute to run the program?

Can I get an answer in this way?

Regards

  _____

From: jayesh at mcs.anl.gov
To: playcsw1984 at hotmail.com
CC: mpich-discuss at mcs.anl.gov
Subject: RE: [mpich-discuss] Errors in running example code in MPICH2 under 
windows
Date: Wed, 16 Jul 2008 09:33:01 -0500

Hi,
 Please let us know how you are launching your MPI job. To run an MPI 
program, cpi.exe, with 2 processes you should run,

     mpiexec -n 2 cpi.exe

 The error you see below should occur only if you try to run your MPI job 
without the job launcher, mpiexec. The error message still indicates that 
mpiexec is not found in the PATH. Where you able to set PATH to mpiexec 
correctly (Able to run mpiexec without specifying the full path)? Please 
provide us as much details as possible.

Regards,
Jayesh

  _____

From: owner-mpich-discuss at mcs.anl.gov 
[mailto:owner-mpich-discuss at mcs.anl.gov] On Behalf Of ???
Sent: Wednesday, July 16, 2008 6:17 AM
To: mpich-discuss at mcs.anl.gov
Subject: [mpich-discuss] Errors in running example code in MPICH2 under 
windows

Dear Sir ,

This is the first time I use MPICH2. I install the software and the SMPD.exe 
is in the process list.
But when I run the example code I meet errors as follows:

[0] Error creating mpiexec process...2
[0] launchMpiexecProcess failed
Fatal error in MPI_Init: Other MPI error, error stack:
MPIR_Init_thread(294): Initialization failed
MPID_Init(82)........: channel initialization failed
MPID_Init(383).......: PMI_Get_id returned 1

I tried placed the mpiexec together with the example cpde but it does no 
help.
Then I use wmpiexec to run the programme. But when I press the execute 
button . The empty command window will flash for a second and then 
disappeared, and now error message.

I would like to know what may cause this problem.

I read some suggestion that '  The error indicates that the path for the job 
launcher (mpiexec) was not found.
  Please set the path for MPICH2 binaries on your system ('Control 
Panel' --> System --> Advanced --> 'Environment Variables'  => Add MPICH2 
bin to the PATH). Now open a new command prompt, try running mpiexec from 
command prompt (to make sure that you have the PATH set correctly) and then 
run your code.'
And tried it but it does no help.

I am looking forward to hearing from you.

  _____

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