[mpich-discuss] client server application on windows7

[Jayesh Krishna]

Hi,
 If you are using file system calls directly (instead of say MPI IO) make sure that the file is created before reading it.
 You might want to take a look at the Windows developer's guide (http://www.mcs.anl.gov/research/projects/mpich2/documentation/index.php?s=docs) for more information on how to set environment variables etc. You can use the "-env" option of mpiexec to set an environment variable (mpiexec -n 2 -env MPICH_PORT_RANGE 10000:10010 mympipgm.exe) for the job.

(PS: The port range is for the entire MPI job and MPICH2 might need more than one port number)
Regards,
Jayesh

----- Original Message -----
From: "toufik hadjazi" <h_toufik7 at hotmail.fr>
To: mpich-discuss at mcs.anl.gov
Sent: Sunday, April 8, 2012 4:30:11 AM
Subject: Re: [mpich-discuss] client server application on windows7



Hi, 

i tried to do like you told me ( save the port name into a text file and read it back as an alternative for mpi_publish/lookup_name) but i encountred a problem, when i run the program it gives me the message: "job aborted" ! and when i observed the operation i found that the file pointer on fopen is NULL, so, i'm confused what the problem could be? 

one more thing, when i was reading some documentation, i found that we could specify a range for MPI_Open_port with the envirenment variable MPI_PORT_RANGE so i thought maybe i could fix the port using this variable as an example : 2033..2033 in order to have the port 2033 but i don't know how to do that! 

thanks & regards, 
Toufik 


> Date: Mon, 2 Apr 2012 14:44:22 -0500 
> From: jayesh at mcs.anl.gov 
> To: h_toufik7 at hotmail.fr 
> CC: mpich-discuss at mcs.anl.gov 
> Subject: Re: [mpich-discuss] client server application on windows7 
> 
> Hi, 
> Please install MPICH2 on all the machines/nodes where your job (MPI processes) is launched and run your job (Specify the list of nodes using a machine file - See Windows developers guide,http://www.mcs.anl.gov/research/projects/mpich2/documentation/index.php?s=docs, for details). 
> 
> Regards, 
> Jayesh 
> 
> ----- Original Message ----- 
> From: "toufik hadjazi" <h_toufik7 at hotmail.fr> 
> To: jayesh at mcs.anl.gov 
> Sent: Monday, April 2, 2012 12:41:14 PM 
> Subject: RE: [mpich-discuss] client server application on windows7 
> 
> 
> Hi Jayesh, 
> thanks for your answer, but the problem is my application will be used in a cluster so the client and the server won't be on the same pc. so, i'm wondering if there is another implmentation of MPI that support this functionnality? 
> 
> 
> 
> > Date: Mon, 2 Apr 2012 12:27:49 -0500 
> > From: jayesh at mcs.anl.gov 
> > To: mpich-discuss at mcs.anl.gov 
> > CC: h_toufik7 at hotmail.fr 
> > Subject: Re: [mpich-discuss] client server application on windows7 
> > 
> > Hi, 
> > The process manager with MPICH2 on Windows (SMPD) does not support publish/lookup across different jobs. You will have to publish/lookup the port name yourself (Write port string from MPI_Open_port() to a text file and read it etc.). 
> > 
> > Regards, 
> > Jayesh 
> > 
> > ----- Original Message ----- 
> > From: "toufik hadjazi" <h_toufik7 at hotmail.fr> 
> > To: mpich-discuss at mcs.anl.gov 
> > Sent: Monday, April 2, 2012 11:54:13 AM 
> > Subject: [mpich-discuss] client server application on windows7 
> > 
> > 
> > 
> > Hi guys, 
> > 
> > I am trying to build a simple client/server application on windows 7 using Visual Studio where the server and the client are run by two different mpiexec and it worked well, but when i introduced mpi_publish_name and mpi_lookup_name the client couldn't find the port associated with the name service, knowing that these tow functions work well when they are in the same programme, i thought that maybe there is a kind of scope for those functions. 
> > so, could any body help me with it. 
> > 
> > and thanks. 
> > _______________________________________________ 
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