Path: utzoo!attcan!uunet!samsung!usc!elroy.jpl.nasa.gov!hacgate!rich
From: rich@hacgate.scg.hac.com (Richard Loo)
Newsgroups: comp.windows.x
Subject: Re: parallel makefiles for Sequent with Imake?
Keywords: Sequent imake parallel
Message-ID: <6779@hacgate.scg.hac.com>
Date: 13 Jan 90 02:52:28 GMT
References: <3730@jarthur.Claremont.EDU>
Reply-To: rich@hacgate.UUCP (Richard Loo)
Organization: Hughes Aircraft Co., El Segundo, CA
Lines: 30

In article <3730@jarthur.Claremont.EDU> laura@jarthur.claremont.edu (Laura Kirk) writes:
>Can Imake make parallel makefiles for the symmetry?  Has anyone done this?
>

I've done this on our Symmetry S81.  I changed about 5 lines in Imake.rules 
(yes, I know it said not to modify, but...) that started with "program:" from:

	program: (dependencies)
to
	program: $(PARALLEL) (dependencies)

and put the following in my sequent.cf file:

                PARALLEL = &

Worked great for R3 and R4.  To get the most out of it, set the environment 
variable PARALLEL to the number of CPUs you have.  Our X sources are NFS'ed
to some Suns so I can still make X for other platforms (using lndir that came 
with R4) without problems.  It took about 2 hours (10 CPUs and users on)
for "make World" to complete.  I forgot to setenv PARALLEL, so it defaulted
to using only 3 CPUs.

-rich

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Richard Loo 			   Internet:    rich@hacgate.scg.hac.com
Hughes Aircraft Company (S&CG)	   UUCP:        ..!elroy!hacgate!rich
PO Box 92919 S65/J305
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