Newsgroups: comp.parallel.pvm
From: Arrigo Triulzi <arrigo@lpac.ac.uk>
Reply-To: arrigo@lpac.ac.uk
Subject: PVM on hosts with multiple ethernet interfaces
Organization: London Parallel Applications Centre
Date: 23 Jan 1996 19:29:23 GMT
Message-ID: <ARRIGO.96Jan23192923@galatea.lpac.ac.uk>

Hello all,

	I have a query regarding PVM 3.3.10 when run on a set of
machines which share their own private ethernet and FDDI ring and
another ethernet connection to an outer network. Basically four
machines are hooked onto two 192.168.x nets (both unreachable and
non-routed according to IETF standards) and also on the common lab
network (for external access).

	The idea is that communication amongst these machines is via
the private networks, FDDI principally. Now, starting up pvm on the
main machine works fine but I need it to start up using the hostname
for the FDDI adapter, _not_ the normal hostname. Otherwise I get a
serious problem in that PVM tries to connect from the normal ethernet
onto the FDDI ring which fails miserably because there is no routing
information into the FDDI ring from the normal ethernet adapter (which
corresponds to the hostname).

	Adding the hosts using the FDDI ring works _but_ there is
absolutely no communication between the main host and the other
machines although they are all reported by conf as being there. All
programs just hang on spawn or communication.

	I would greatly appreciate any suggestions. BTW, I know it
must be the routing because running routed without the -q flag makes
it all work!

	Ciao,

	Arrigo
--
Arrigo Triulzi <arrigo@lpac.ac.uk>  - +44-171-775-3247
London Parallel Applications Centre - London E1 4NS - UK
-- 
--
Arrigo Triulzi <arrigo@lpac.ac.uk>  - +44-171-775-3247
London Parallel Applications Centre - London E1 4NS - UK

