Yes, I can do all of these on each node.


In 2010-03-25 04:33:24, "Jeff Squyres" <jsquy...@cisco.com> wrote :

>Can you mpirun non-MPI applications, like "hostname"?  I frequently run this 
>as a first step to debugging a wonky install.  For example:
>
>shell$ hostname
>barney
>shell$ mpirun hostname
>barney
>shell$ cat hosts
>barney
>rubble
>shell$ mpirun --hostfile hosts hostname
>barney
>rubble
>shell$
>
>
>On Mar 24, 2010, at 4:28 PM, haoanyi wrote:
>
>> Hi, 
>> 
>> I installed OpenMPI1.4.1 as a non-root user on a cluster. It is totally OK 
>> when I run with mpirun or mpiexec on one single node for many processes. 
>> However, when I lauch many processes on multiple nodes, I can observe jobs 
>> are distributed to those nodes (by using "top"), but all the jobs just hang 
>> there and cannot finish.
>> 
>> I think the nodes use TCP to communicate with each other. This cluster also 
>> provides MPICH2, which was configured by the sys admin., and has no problem 
>> to do node communication in MPICH2. Besides, I read from some posts, which 
>> says this may be caused by TCP firewall. Since I have no root's right, and I 
>> don't know what shall request the admin. to do to fix this problem. So, can 
>> you tell me how to do that either by the admin root or by the non-root user 
>> (if possible)?
>> 
>> Thank you very much.
>> Hao
>> 
>> 
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>
>
>-- 
>Jeff Squyres
>jsquy...@cisco.com
>For corporate legal information go to:
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>
>
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