Unfortunately, our Windows guy (Shiqing) is off getting married and will be out 
for a little while.  :-(

All that I can cite is the README.WINDOWS.txt file in the top-level directory.  
I'm afraid that I don't know much else about Windows.  :-(


On May 18, 2011, at 8:17 PM, Jason Mackay wrote:

> Hi all,
>  
> My thanks to all those involved for putting together this Windows binary 
> release of OpenMPI!  I am hoping to use it in a small Windows based OpenMPI 
> cluster at home.
>  
> Unfortunately my experience so far has not exactly been trouble free.  It 
> seems that, due to the fact that this release is using WMI, there are a 
> number of settings that must be configured on the machines in order to get 
> this to work. These settings are not documented in the distribution at all. I 
> have been experimenting with it for over a week on and off and as soon as I 
> solve one problem, another one arises.
>  
> Currently, after much searching, reading, and tinkering with DCOM settings 
> etc..., I can remotely start processes on all my machines using mpirun but 
> those processes cannot access network shares (e.g. for binary distribution) 
> and HPL (which works on any one node) does not seem to work if I run it 
> across multiple nodes, also indicating a network issue (CPU sits at 100% in 
> all processes with no network traffic and never terminates). To eliminate 
> premission issues that may be caused by UAC I tried the same setup on two 
> domain machines using an administrative account to launch and the behavior 
> was the same. I have read that WMI processes cannot access network resources 
> and I am at a loss for a solution to this newest of problems. If anyone knows 
> how to make this work I would appreciate the help. I assume that someone has 
> gotten this working and has the answers.
>  
> I have searched the mailing list archives and I found other users with 
> similar problems but no clear guidance on the threads. Some threads make 
> references to Microsoft KB articles but do not explicitly tell the user what 
> needs to be done, leaving each new user to rediscover the tricks on their 
> own. One thread made it appear that testing had only been done on Windows XP. 
> Needless to say, security has changed dramatically in Windows since XP!
>  
> I would like to see OpenMPI for Windows be usable by a newcomer without all 
> of this pain.
>  
> What would be fantastic would be:
> 1) a step-by-step procedure for how to get OpenMPI 1.5 working on Windows
>       a) preferably in a bare Windows 7 workgroup environment with nothing 
> else (i.e. no Microsoft Cluster Compute Pack, no domain etc...)
> 2) inclusion of these steps in the binary distribution
> 3) bonus points for a script which accomplishes these things automatically
>  
> If someone can help with (1), I would happily volunteer my time to work on 
> (3).
>  
> Regards,
> Jason
> _______________________________________________
> users mailing list
> us...@open-mpi.org
> http://www.open-mpi.org/mailman/listinfo.cgi/users


-- 
Jeff Squyres
jsquy...@cisco.com
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