Newsgroups: comp.parallel.mpi From: Mike Harm Subject: mpich Nexus? Globus? Gusto? totally baffled.... Organization: University of Southern California, Los Angeles, CA Date: Fri, 31 Jul 1998 16:32:14 +0000 Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <35C1F18E.6566440C@NOSPAM.NOSPAM> Hi all. I've been using MPI on a variety of university machines for some time now . I'm very happy with the results; the same code works just ducky no matter what machine I'm on. MPI is cool. So now I'm turning my attention to bigger problems. I've got access to 14 nodes of an SP2, 8 nodes of a convex and 8 nodes of an sgi powerchallenge, and about 5 Pentium II/400 boxes running linux. I'd like to be able to farm a job off to ALL of these things at once, communicating over ethernet or whatever. In my version of MPICH, it describes the nexus device. however when I go to the MPICH web page it doesn't talk about nexus in the new release, it instead has reference to a Globus device. The docs are really scanty; it makes reference to a Gusto network of machines, but doesn't say what that is, who is allowed on it... in one spot the docs say "we recommend you use gusto. if you want to do something else, write to the globus people. I must admit I'm baffled. It sounds like globus wants a server running on all relevant machines. I don't have root access to any of these devices except the linux boxes, and the university ain't gonna install a globus server just 'cause I asked. but, I can't find any docs that say whether I need root access or not... Ummmm... has the nexus device gone away? If it has, do I want to try using it on my old version of mpich anyway? I looked at it briefly a long time ago and it seemed drastically simpler than this globus business. Or am I making it harder than it is? Any info or advice appreciated! Mike Harm mharm@NOSPAM USC Psycholinguistics and Neural Network Research Lab University of Southern California -- Replace NOSPAM in the above address with "gizmo.usc.edu" to email me. Sorry, I know its a drag... Just got too fed up with spammers.