Newsgroups: comp.parallel.pvm From: Stephen So Reply-To: stephen.so@computer.org Subject: Multicast problem Organization: OzEmail Ltd. Date: Thu, 16 Apr 1998 01:01:26 +1000 Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <3534CBC5.6B0C0960@ozemail.com.au> 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? Steve.