Newsgroups: comp.parallel
From: Matthias Linke <mlinke@informatik.uni-rostock.de>
Subject: Re: Synchronizing PVM tasks
Organization: University of Rostock
Date: 3 Mar 1995 08:15:44 GMT
Message-ID: <3ja73q$ctn@usenet.srv.cis.pitt.edu>

Lorenz Redlefsen (lorenz@cj.stu.rpi.edu) wrote:
: Sorry if this is a FAQ, but I couldn't find the answer to this
: in any of the documentation I have.

: I need to have a number of PVM tasks hang around until all 
: other tasks are done. The obvious solution would be something like:

: 	pvm_joingroup( "something" );

: 	[... useful work ...]

: 	pvm_barrier( "something", num_tasks );
: 	pvm_exit();

: Unfortunately, pvm_joingroup() fails with the error message:
: 	"gs_getgstid() failed to start group server: No such file"

: Now, the man page for pvm_joingroup(3) says that "something" 
: should be the name of an already existing group. I have searched the
: documentation High And Low for a function that lets me create a group.

: Anyone in the know care to enlighten me, or at least tell me where to
: look?

: 	Thanks,
: 	Lorenz Redlefsen
: 	(lorenz@cj.stu.rpi.edu)

Maybe the stuff related to the handling of dynamic groups wasn't build
during your PVM-installation. This could be the solution because we had
the same problems and solved it that way.

Greetings, Matthias.

