Newsgroups: comp.parallel.pvm
From: wjiang@thud.cs.utk.edu (weicheng jiang   )
Subject: Re: Max buffer size for incoming messages?
Organization: Computer Science Dept, University of Tennessee, Knoxville
Date: 27 Sep 1994 18:10:39 GMT
Message-ID: <369n6vINNi1i@CS.UTK.EDU>

In article <369f8c$o5d@news.uni-c.dk>, schiotz@oersted (Jakob Schiotz) writes:
|> I have a PVM program where the slaves are sending 26 large messages
|> (~100 kB) to other slaves. In theory up to 24 such messages may arrive
|> while the slave is busy processing the first. I have tried to increase
|> the message fragment size to improve performance, but if I increase
|> the fragment size to say 64k (or 128k) the slaves crash (but until the
|> crash the program runs faster). Is there a maximum buffer size for
|> incoming messages, so the buffer may overrun if many messages arrive
|> from different sources at the same time?
|> 
|> I am running PVM 3.3.3 on a CM-5E parallel computer.
|> 

Did you get any error messages in the log file?

-Weicheng Jiang
University of Tennessee

