Newsgroups: comp.parallel.pvm
From: katsaros@george.rutgers.edu (Georgios Katsaros)
Subject: PVM buffering
Organization: Rutgers University LCSR
Date: 28 Jun 1995 08:15:46 -0400
Message-ID: <3srh5i$h0t@george.rutgers.edu>


Hi,
 I'm using pvm to parallelize a ship hydrodynamics program on Cray T3D. 
 The program runs correctly for a number of iterations, and then hangs, 
 with the message "Operand out of range". A similar problem occurs when 
 using workstation clusters instead of the Cray.

 The number of iterations I get depends on the size of messages passed 
 using pvm calls - I only use a simple master-slave model. I suspect that
 there must be a problem with accumulating messages. Is there any way to
 control the message buffer sizes? Or perhaps to flush buffer space?

 If anyone has had any experience in a similar problem, I'd appreciate any 
 comment.

  thanks a lot,
 
  George Katsaros
  Rutgers University.

