Newsgroups: comp.parallel.pvm
From: rob@bip.anatomy.upenn.edu (Robert G. Smith)
Subject: Re: HELP!!
Organization: University of Pennsylvania
Date: 3 Jun 1997 23:34:23 GMT
Message-ID: <5n29lv$9pd@netnews.upenn.edu>

Tony Cox (a.cox@rbgkew.org.uk) wrote:


: I'm trying to get PVM running on a couple of unix machines (a Data General
: and a SUN).

: First off, I have read all the documentation I could find. The PVM software
: built without any problems on both platforms. I can start the pvm console
: OK on both machines. However, in either case I cannot add the other remote
: host and get the dreaded "can't start pvmd" message. I have a defined all
: environment variables, and created a .rhosts file which I have placed both
: in $PVM_ROOT and in $PVM_ROOT/lib on both machines. The .rhosts file simply
: contains two lines naming both machines and the lo=username and so=pw
: qualifiers.

: Looking at the log in /TMP from one session I get the following error when
: trying to "add <hostname>" (detailed in the .rhosts file):

: [t80040000] lion (193.128.240.7:2405) DGAV 3.3.11
: [t80040000] ready Wed May 28 17:02:49 1997
: [t80000000] stderr@griffin: permission denied
: [t80000000] stdout@griffin: EOF
: [t80040000] startack() host griffin expected version, got "PvmCantStart"
: [t80040000] dm_halt() from (lion), halting...
: [t80040000] work() pvmd halting
: [t80040000] pvmbailout(0)

I get a similar error with 3.3.11.

In my case, the 2 machines are "vision", a DEC Alpha running
Linux and "bip" an x86 machine running Linux.

I can add the "vision" host when I run pvm from "bip", but
when I run pvm on "vision", I can't add "bip": 

[t80040000] vision.med.upenn.edu (165.123.30.42:1481) ALPHA 3.3.11
[t80040000] ready Wed Dec 24 10:46:53 36818566
[t80000000] stderr@bip: phase1() execvp failed
[t80000000] stdout@bip: EOF
[t80040000] startack() host bip expected version, got "PvmCantStart"
[t80040000] dm_halt() from (vision.med.upenn.edu), halting...
[t80040000] work() pvmd halting
[t80040000] pvmbailout(0)

Both machines can spawn tasks on the same machine, and host "bip"
can be added by other x86 PVMs.  It appears that adding hosts
from the pvm compiled on the DEC Alpha doesn't work.

What can I do to debug this further ?
Is there something obvious that I'm missing ?  

Thanks,

Rob Smith