From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lists.gentoo.org ([140.105.134.102] helo=robin.gentoo.org) by nuthatch.gentoo.org with esmtp (Exim 4.62) (envelope-from ) id 1H6O33-00069b-M3 for garchives@archives.gentoo.org; Mon, 15 Jan 2007 09:22:38 +0000 Received: from robin.gentoo.org (localhost [127.0.0.1]) by robin.gentoo.org (8.13.8/8.13.8) with SMTP id l0F9L4qr005622; Mon, 15 Jan 2007 09:21:04 GMT Received: from silicon.bo.imm.cnr.it (silicon.bo.imm.cnr.it [192.167.170.20]) by robin.gentoo.org (8.13.8/8.13.8) with ESMTP id l0F9L3aB002467 for ; Mon, 15 Jan 2007 09:21:03 GMT Received: from silicon.bo.imm.cnr.it (localhost [127.0.0.1]) by silicon.bo.imm.cnr.it (Postfix) with ESMTP id F2AD512B1F for ; Mon, 15 Jan 2007 10:21:02 +0100 (CET) Received: from dhcp-206.bo.imm.cnr.it (gate.bo.imm.cnr.it [192.167.170.250]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by silicon.bo.imm.cnr.it (Postfix) with ESMTP id E44EA10F62 for ; Mon, 15 Jan 2007 10:21:02 +0100 (CET) From: Alessandro Yoshi Polliotti Organization: CNR - IMM To: gentoo-science@lists.gentoo.org Subject: Re: [gentoo-science] MPI and multicore + lib question Date: Mon, 15 Jan 2007 10:21:02 +0100 User-Agent: KMail/1.9.5 References: <3D60AF2712C16D42A38076E52FD6E3D23F0C33@ukmcrdembx01.rd.astrazeneca.net> <200701111646.46099.polliotti@bo.imm.cnr.it> <200701150303.22964.mayday@gmx.net> In-Reply-To: <200701150303.22964.mayday@gmx.net> Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-science@gentoo.org Reply-to: gentoo-science@lists.gentoo.org MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200701151021.02985.polliotti@bo.imm.cnr.it> X-Virus-Scanned: ClamAV using ClamSMTP X-Archives-Salt: 0ffefc2d-d42c-4243-8533-5c8d5b07254f X-Archives-Hash: 85dd92f201b97a04f44c66d0e785f7d8 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 -- gentoo-science@gentoo.org mailing list