Newsgroups: comp.parallel.pvm
From: root@127.0.0.1
Subject: Re: Multicast problem
Date: 16 Apr 98 09:19:31 MDT
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Message-ID: <Ox9zgcE2WTjS@cc.usu.edu>

In <3534CB47.C8AE60AC@ozemail.com.au> Stephen So wrote:
> Hi everyone,
> 
> I've got some problems with my PVM program. What it does is pretty
> simple. Create 2 arrays of 400 numbers, multicast to 4 hosts (slaves),
> each of whom add their section of 100 elements and send the results
> back. Now everything compiles okay. Most of code resembles examples that
> come with PVM and they run fine. Now looking at the space-time graph in
> XPVM, the 4 tasks are spawned but no messages are passed from the master
> (done with pvm_mcast()) at the beginning. The 5 programs just sit there
> running. I don't have the foggiest of ideas why this is so. I've tried
> individually sending the stuff (pvm_send()) to each of tasks
> individually and that does not seem to work either. Message tags are
> consistent. Anyone got any ideas?

I hope I'm not being too simplistic here, but have you insured that
the master program calls pvm_mytid() to enroll as a process with the 
pvmd?