Some questions are easier than others …

On Aug 23, 2013, at 07:54 , mahesh <mahsh.bah...@gmail.com> wrote:

> I know that its a huge code base. But, I am looking for specific answers like 
> does OpenMPI use sockets?

When Open MPI is using TCP it does indeed use sockets.

> Can programs written without mpi libraries be run on
> clusters using orte(with some changes)?

Yes, that's why you can run "mpirun -np 4 hostname".

> It would be really helpful if at least these and related doubts can be solved.

Hope that helps.

  George.


> 
> Thanks,
> Mahesh
> 
> On Aug 22, 2013 (jsquyres) <jsquy...@cisco.com> wrote
>> Note that according to http://www.ohloh.net/p/openmpi, OMPI is over 3/4M 
>> lines of code.  I doubt you will be able to get a thorough understanding of 
>> *all* of OMPI in a semester or two -- indeed, I doubt that any one Open MPI 
>> core developer has a thorough understanding of the whole code base (I know I 
>> don't!).
>> 
>> I don't say these things to discourage you; I actually just want to 
>> encourage you to set realistic expectations for what you'll be able to do.
>> 
>> Are there any particular areas that you'd like to focus on?  MPI -- and the 
>> Open MPI implementation -- covers a *lot* of different subsystems and 
>> concepts.
>> 
>> 
>> On Aug 22, 2013, at 8:06 AM, mahesh <mahsh.bah...@gmail.com> wrote:
>> 
>>> Hi,
>>> I am an     newbie to all MPI concepts and I would like to understand the 
>>> MPI source code thoroughly for
>>> an academic project. So, what I     need is an detailed explanation of how 
>>> every framework and module 
>>> works. It would     be really helpful if wise people could point me to 
>>> right direction.
>>> 
>>> Thanks,
>>> Mahesh
>>> _______________________________________________
>>> devel mailing list
>>> de...@open-mpi.org
>>> http://www.open-mpi.org/mailman/listinfo.cgi/devel
>> 
>> 
>> -- 
>> Jeff Squyres
>> jsquy...@cisco.com
>> For corporate legal information go to: 
>> http://www.cisco.com/web/about/doing_business/legal/cri/
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