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From: Brian Barrett (brbarret_at_[hidden])
Date: 2006-05-13 19:56:11


On May 13, 2006, at 10:36 AM, imran shaik wrote:

> Can you suggest me any way of solving my problem?
> Shall i move away from MPI?
>
> Any suggestions are welcome!
>
>
> Awaititng for your reply.
>
> PS:
> I am doing an academic project on dcentralized grid resource
> discovery. I need to evaluate(simulate) a request forwarding
> algorithm.I am planning for as many processes as i can with the
> available resources. I chose MPI coz it provided with facilities
> such as communicators and topology . Now i am learning MPI and
> almost about to complete.I heard of people doing simulations using
> MPI processes, perhaps with more nodes. can u suggest any alternative?
>
> Any suggestions ,positive or negative are most welcome.

It might be possible to use another MPI implementation (Open MPI or
MPICH) and get the process count you're looking for. Of course, I
think you're going to find that your performance is useless -- An MPI
implementation needs to keep a bunch of data around and you don't
have much memory. On the other hand, it might do what you need (swap
can do an awful lot if needed). I can't answer for you if MPI is the
right thing or not. In general, MPI isn't good at decentralized,
dynamic environments. But if it's doing what you need, then why redo
the work you've already put into your prototype?

Brian

-- 
   Brian Barrett
   LAM/MPI developer and all around nice guy
   Have a LAM/MPI day: http://www.lam-mpi.org/