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pcons 2.3


From: Nolish, Kevin
Subject: pcons 2.3
Date: Thu, 29 Nov 2001 10:31:53 -0500

My belief is that the logic that actually spawns off the
parallel jobs is in subroutine do_command in package
action::command::unix.  Roughly line 2032 in my version
of pcons.

I wound up replacing the call to exec with a call to
a custom built Mosix::mosix_exec call that translated into
an mexec call on our Mosix cluster.  I needed to do that to
farm jobs across our cluster.

For an SMP machine, the call to exec ought to work.

The place where you decide to do the parallel jobs is in
routine execute, a few lines above sub do_command.

I've seen pcons fire off up to a dozen compilations concurrently
in our clustered environment, so I have to believe that the logic
of pcons is close to correct.

Question - Do you need a special exec call for your system to fork
off programs onto a different processor?  I've got no experience
with SMP systems, I'm a cluster kind of guy, so I may be asking
dumb questions.

Kevin Nolish
724-742-6989
<mailto:address@hidden> 



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