Hi Clinton,

I suggest that you build Open MPI directly on the Windows Server, so that the system dependencies wouldn't get wrong. If you just copy around the binaries, there will be problems:

your local PC (I guess it's Windows Vista or 7) has inet_pton, but the Windows Server 2003 doesn't have it in the system level. So the binaries won't work. I'll fix this problem very soon.

Regards,
Shiqing

On 2011-08-10 9:56 AM, Chee, Clinton wrote:

Hi Shiqing,

 

Thanks very much for your last email – it was good help. I think my questions about security and group permissions on Windows are answered with the MSDN links for configuring remote access.

 

Anyway, I have managed to compile using VS C++ 2008 on my local PC (32bit) and it worked.

 

Then I moved to our Windows Server 2003 x64.

I compiled the x64 test code and and I run it, I got

"The procedure entry point inet_pton could not be located in the dynamic link library WS2_32.lib"

 

1.       I found a thread on this message but there was no solution at that time.  Has this problem been solved? If yes, How do I fix this?

 

 

2.       Also I read somewhere in the web that OpenMPI on Windows x64 for Fortran does not work properly yet. Is this still true?

 

Thanks for your help.

 

 

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From: Shiqing Fan [mailto:fan@hlrs.de]
Sent: Tuesday, 9 August 2011 7:50 PM
To: Open MPI Users
Cc: Chee, Clinton
Subject: Re: [OMPI users] How to setup and use nodes for OpenMPI on Windows

 

Hi Clinton,


Just wondering if anyone can point me to the detailed information on how to setup multiple nodes and network them together to use OpenMPI. Also what is the proper way to specify which nodes to run on. I wish to use OpenMPI on the Windows XP or Windows Server 2008 platform, with Intel Fortran 11 as the programming language.


If you use Windows XP, you have to specify --host or --hostfile option in the command line. see mpirun --help for more details. On Windows server 2008, you can also specify the node names through the Job Monitor GUI.


I have searched Google and also looked through the OpenMPI website but there does not seem to be any comprehensive documents to run OpenMPI on Windows, especially setting up the nodes.


For working on multiple nodes on Windows XP, the only thing you have to make sure is that the WMI is able to launch process remotely, which referred to the two MSDN links in the WINDOWS.TXT file. Other then this, no other special setting is necessary, just install one pre-compiled installer, it will configure the environment automatically for you.


Many years ago, I played a bit with Mpich and LAM MPI on a purely Linux platform. On Linux clusters, it is easy – the head node see each of the compute nodes. As I remember, the programmer need to only write the names of the compute nodes in some sort of config file. The job is submitted and based on the compute nodes listed, the mpi will run on them.

 

On Windows, what kind of networking is needed to tie the nodes together? (assuming we are not using any of the MS HPC Pack or Compute Cluster). How do we specify which nodes to use? How do we specify any security or group permissions for the nodes?

You should have at least TCP connections among the nodes. I don't understand what security and group permissions stands for here.


Regards,
Shiqing



 

 

 

 

 


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-- 
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Shiqing Fan
High Performance Computing Center Stuttgart (HLRS)
Tel: ++49(0)711-685-87234      Nobelstrasse 19
Fax: ++49(0)711-685-65832      70569 Stuttgart
http://www.hlrs.de/organization/people/shiqing-fan/
email: fan@hlrs.de