Path: news.daimi.aau.dk!olevi
From: olevi@daimi.aau.dk (Ole Villumsen)
Newsgroups: comp.lang.beta
Subject: Re: PDES / Concurrency in the BETA Language
Date: 19 Apr 1995 10:39:16 GMT
Organization: DAIMI, Computer Science Dept. at Aarhus University
Lines: 22
Message-ID: <3n2p8k$99v@belfort.daimi.aau.dk>
References: <3mdqej$6sd@fbi-news.informatik.uni-dortmund.de>
NNTP-Posting-Host: lithium.daimi.aau.dk
Keywords: PDES,parallel,discrete,event,simulation,Mjølner,BETA,concurrency

Armin M. Warda,

The Mjølner people can answer your concrete questions much better
than I can, so I'll leave that to them.

Armin M. Warda <warda@veronica.informatik.uni-dortmund.de> writes:

>  "THE CONCURRENCY IS SIMULATED

That is true (no preemptive version out at the moment), but in my
experience no real limitation at all. All you have to do is to
distribute "pause" statements throughout the code of each process,
in particular be sure you always have at least one inside each loop.
The pause pattern activates another process (putting the calling process
in the end of the process queue), so this scheme ensures that all processes
get a share of the processor time.  I haven't tried it for PDES, though.

Good luck - hope this helps.

Ole V.
--
Ole Villumsen, Computer Science Department, Aarhus University, Denmark