From: Anders Jorgensen <ajorg@lanl.gov>
Newsgroups: comp.parallel.pvm
Subject: Re: Nb of process spawned
Date: Thu, 29 Apr 1999 10:59:57 -0600
Organization: Los Alamos National Laboratory
Message-Id: <3728900D.29AB9362@lanl.gov>
References: <925325954.656902@news1>
Reply-To: anders.jorgensen.1998@alum.bu.edu
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Xref: ukc comp.parallel.pvm:8330


In the PVM manual it is explained, that the pvmd requires two file
descriptors for each slave job it manages on that machine. There is a
limitation on the number of file descriptors that a process can have
open. It varies from system to system. Have a look at section 7.9.1 of
the PVM manual available on the web site. This may be the explanation
for your problem. Don't know how to increase it, but there may be a
parameter in /etc/* you can play with. ---anders


thierry.huet@infonie.fr wrote:
> 
> Hi all,
> 
> my configuration is 1 PC/Linux + 1Sun/Solaris2.6. I have to spawn a lot of
> process (about 300) on this configuration. When I start my application, pvm
> divide in two the number of process (150 for each machine). However, only
> ~25 starts on the Sun. Does it exist a limitation of the number of started
> process for one pvmd, for one OS... how can we increase this number.
> 
> Regards
> 
> th