Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!uunet!mcsun!sunic!tut!tukki!sakkinen
From: sakkinen@tukki.jyu.fi (Markku Sakkinen)
Newsgroups: comp.object
Subject: Re: Looking for classes and algorithms for use in discrete event simulation
Message-ID: <1566@tukki.jyu.fi>
Date: 20 Oct 89 08:08:02 GMT
References: <1533@novavax.UUCP>
Reply-To: sakkinen@jytko.jyu.fi (Markku Sakkinen)
          SAKKINEN@FINJYU.bitnet (alternative)
Organization: University of Jyvaskyla, Finland
Lines: 34

In article <1533@novavax.UUCP> weiner@novavax.UUCP (Bob Weiner) writes:
>I just reread the intro in Stroustrup's C++ reference manual and noticed
>that his published reason for initially creating "C with Classes" (which
>evolved into C++, was to do discrete event simulation.
>
>I have a need to do work in this area also and feel OO techniques will
>be very helpful.  Any pointers to available source classes for discrete
>event simulation or object-based algorithms would be greatly
>appreciated.  (More specifically, we are modelling an RF communications
>system.)

Did you notice that B.S. wrote:
"... some event-driven simulations for which Simula67 would have been
ideal, except for efficiency considerations"?
I suppose efficiency considerations would hardly rule out Simula today.
With Simula systems, you get the basic classes for discrete event
simulation; and after more that 20 years' use and experience,
they should be tested and mature.
Moreover, Simula is available on a much wider spectrum of computers
than C++, e.g. VAX/VMS and Prime.

Note: I have no practical experience with Simula.
Sorry that this repeats much that I wrote in another newsgroup
some time ago.
As for literature, there is e.g. a book by Birtwistle on discrete
event simulation in Simula (he is also a co-author of the classic
"SIMULA begin").

Markku Sakkinen
Department of Computer Science
University of Jyvaskyla (a's with umlauts)
Seminaarinkatu 15
SF-40100 Jyvaskyla (umlauts again)
Finland