Re: [gentoo-science] MPI and multicore + lib question

[Alessandro Yoshi Polliotti <polliotti@bo.imm.cnr.it>]

On Friday 12 January 2007 03:29, Markus Dittrich wrote:
> If I interpret your question correctly it looks
> like you did not use mpirun to start your parallel
> apbs job, which is what you need to do.
> Have a look at mpirun's man page which should
> get you started.

Bingo :)

On Monday 15 January 2007 03:03, Benjamin Sobotta wrote:
> This may be slightly OT, and I dont know apbs, but are you sure that MPI is
> what you need? To my knowledge, MPI is for distributed computing, i.e. when
> you have several nodes to do calculating work.
>
> As far as I understand you only have one computer. Wouldn't some shared
> memory parallel implementation like OpenMP make more sense?

You are right, however I'm probably going to setup a cluster and this is part 
of an evaluation to determine the advantages and problems I could have.
Honestly right now I know near nothing about mpi and I'd like to understand 
how it works before I get a request to create a production environment based 
on it. ;)
That's why I'm trying to make it work on my laptop where I have full control 
of the system.

-- 
"Because while the truncheon may be used in lieu of conversation, words will 
always retain their power. Words offer the means to meaning, and for those 
who will listen, the annunciation of truth."
V for Vendetta
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