Newsgroups: comp.parallel.pvm
From: jking@cv.HP.COM (Jonathan King)
Subject: PVM out of memory
Organization: Hewlett-Packard Company, Corvallis, OR
Date: Mon, 14 Aug 1995 14:58:56 GMT
Message-ID: <DDB2y8.8o3@hpcvsnz.cv.hp.com>

I'm currently debugging a large parallel application ported to PVM, and am running across 4 nodes.  The program is very long running (esp. on workstations), and eventually (could be a couple of days into a run) PVM dies with the error:

libpvm [t4000d]: fr_new() can't get memory
Segmentation Fault - core dumped

Now, each node has AT LEAST 128 Meg of ram on board, + 1 gig of swap, and the program, in any one iteration should not be coming anywhere CLOSE to that number.  But, since it is a very long running process, if there is some memory that PVM doesn't free from old messages or something like that, the used memory could be creeping up.  Has anyone else had any problems of this sort?  The program works fine up to the point, results look good, but this is a frustrating debug.  It has died both on HPs and SUNs, wi
th both 3.3.7 and 3.3.8.

Any clues?

'preciate it.
Jon King
jking@cv.hp.com

