Newsgroups: comp.sys.transputer
From: Daniel Scheurell <daniel.j.scheurell@boeing.com>
Reply-To: daniel.j.scheurell@boeing.com
Subject: Re: HELP NEEDED! Transputer & Parallell C!!
Organization: Boeing D+SG -- AWACS Advanced Products
Date: Wed, 12 Feb 1997 15:51:52 GMT
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Message-ID: <3301E718.F98@boeing.com>

rolf.moholth@hibu.no wrote:
> 
> I'm trying to run 3 processes on 3 separate transputers, but the communication between processes doesn't seem to work.
> 
... [etc] ...
>         printf( "Svoooossj!\n" );
>         /*      Send a number to the workers   */
>         ChanOut( pTo1, &nStart1, sizeof(int) );
>         printf( "Sviiiisj!\n" );
>         ChanOut( *pTo2, &nStart2, sizeof(int) );
>         printf( "Svusj!\n" );
>         ChanIn( *pFrom1, &nSum1, sizeof(int) );
>         printf( "Svisj!\n" );
>         ChanOut( *pTo2, &nStart2, sizeof(int) );
> 
>         /*      Wait for results from both workers */
>         ChanIn( *pFrom1, &nSum1, sizeof(int) );
>         ChanIn( *pFrom2, &nSum2, sizeof(int) );
... [etc] ...
> 
> Rolf Moholth
> Buskerud College
> Department of Computer Science
> N-3600 KONGSBERG
> NORWAY

	The channel pointer arguments to the ChanIn/Out functions have been
dereferenced.  The functions want the pointer itself (e.g. pFrom2, as in
the first call using pTo1), and not the Channel pointed to (*pFrom2).
	All else seems OK.
	Do your students read this newsgroup? ;)

-- 
Daniel Scheurell
Boeing Defense & Space Group -- AWACS Advanced Products
vmail: 206-657-5154     email: daniel.j.scheurell@boeing.com