From owner-freebsd-current Wed Mar 5 16:49: 6 2003 Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 6D9B137B401 for ; Wed, 5 Mar 2003 16:49:05 -0800 (PST) Received: from smtpout.mac.com (smtpout.mac.com [17.250.248.86]) by mx1.FreeBSD.org (Postfix) with ESMTP id 62A6E43FA3 for ; Wed, 5 Mar 2003 16:49:00 -0800 (PST) (envelope-from leimy2k@mac.com) Received: from asmtp01.mac.com (asmtp01-qfe3 [10.13.10.65]) by smtpout.mac.com (Xserve/MantshX 2.0) with ESMTP id h260n0Gs003022 for ; Wed, 5 Mar 2003 16:49:00 -0800 (PST) Received: from mac.com ([67.33.228.33]) by asmtp01.mac.com (Netscape Messaging Server 4.15) with ESMTP id HBAY9N00.258; Wed, 5 Mar 2003 16:48:59 -0800 Date: Wed, 5 Mar 2003 18:48:57 -0600 Subject: Re: IP over IEEE1394? Content-Type: text/plain; charset=US-ASCII; format=flowed Mime-Version: 1.0 (Apple Message framework v551) Cc: Rossam Souza Silva , current@FreeBSD.ORG To: Wilko Bulte From: David Leimbach In-Reply-To: <20030305190134.H5349@freebie.xs4all.nl> Message-Id: <69DCFB5C-4F6D-11D7-885F-0003937E39E0@mac.com> Content-Transfer-Encoding: 7bit X-Mailer: Apple Mail (2.551) Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG >> > > The interconnect is just 10% of the whole cluster story. Firewire > is one possibility, but Fibrechannel you could do today if you wanted > to. We have Fibrechannel support in the Qlogic isp(4) driver (thanks > Matt!) today. > Yeah... if you are lucky 10% :). In fact latency in messages isn't as important as some people would like you to believe either. A well written MPI library [and MPI application] allows overlap of communication and computation that improves the overall wall clock time of the job... which is the ultimate goal. Get it done correctly and get it done ASAP! :) but that's WAAAAY offtopic now :) Dave To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message