Gentoo Archives: gentoo-science

From: Alessandro Yoshi Polliotti <polliotti@××××××××××.it>
To: gentoo-science@l.g.o
Subject: Re: [gentoo-science] MPI and multicore + lib question
Date: Mon, 15 Jan 2007 09:22:38
Message-Id: 200701151021.02985.polliotti@bo.imm.cnr.it
In Reply to: Re: [gentoo-science] MPI and multicore + lib question by Benjamin Sobotta
1 On Friday 12 January 2007 03:29, Markus Dittrich wrote:
2 > If I interpret your question correctly it looks
3 > like you did not use mpirun to start your parallel
4 > apbs job, which is what you need to do.
5 > Have a look at mpirun's man page which should
6 > get you started.
7
8 Bingo :)
9
10 On Monday 15 January 2007 03:03, Benjamin Sobotta wrote:
11 > This may be slightly OT, and I dont know apbs, but are you sure that MPI is
12 > what you need? To my knowledge, MPI is for distributed computing, i.e. when
13 > you have several nodes to do calculating work.
14 >
15 > As far as I understand you only have one computer. Wouldn't some shared
16 > memory parallel implementation like OpenMP make more sense?
17
18 You are right, however I'm probably going to setup a cluster and this is part
19 of an evaluation to determine the advantages and problems I could have.
20 Honestly right now I know near nothing about mpi and I'd like to understand
21 how it works before I get a request to create a production environment based
22 on it. ;)
23 That's why I'm trying to make it work on my laptop where I have full control
24 of the system.
25
26 --
27 "Because while the truncheon may be used in lieu of conversation, words will
28 always retain their power. Words offer the means to meaning, and for those
29 who will listen, the annunciation of truth."
30 V for Vendetta
31 --
32 gentoo-science@g.o mailing list

Replies

Subject Author
[gentoo-science] mpb: dependencies require two mpi implementations Alessandro Yoshi Polliotti <polliotti@××××××××××.it>