Newsgroups: comp.parallel.pvm
From: sssfagg@reading.ac.uk (Graham Fagg)
Subject: Re: PVM on geographically distant hosts
Organization: University of Reading
Date: Fri, 18 Nov 1994 11:34:22 GMT
Message-ID: <sssfagg.785158462@reading>

heimes@spva.ph.ic.ac.uk (Frank Heimes) writes:

>yes, I do. I wrote an application that can run on virtual machines of
>different sizes and architectures.
>I managed to set up a virtual machine of 6 DEC-stations in London and
>12 in Karlsruhe, Germany. However, when I tried to run an application,
>11 of the 12 hosts exited from pvm. The reason for that was, that
>these 11 hosts don't have direct internet access. They can only connect up
>to the 12th host.
>Using the 6 DEC-stations in London and the one with direct internet access
>in Karlsruhe worked fine.

I've had simular problems, but mainly with starting the machine. The machine
that has the master daemon onit has to be able to see the others (and is
usually the one with DNS lookup). So aslong as you don't use PvmDirectRouting
should't it be possible to get this daemon to route messages around?
(I know its not done yet, but it could be added? With default routing daemons?)


Graham.
===============================================================================
Graham Edward Fagg ||| Making Parallel Computers Talk. ||| e-mail me some time
 Computer Science ||  Software Engineering Subject Grp.  ||  G.E.Fagg@rdg.ac.uk
0734-875123 7626 | http://www.cs.reading.ac.uk/people/gef/ |  PVM/P4/LINDA/VDM 
===============================================================================

