Re: language syntax for representing concurrency

Blair MacIntyre <bm@cs.columbia.edu>
3 Dec 1996 20:50:59 -0500

          From comp.compilers

Related articles
language syntax for representing concurrency thomasd@cisco.com (Thomas Dejanovic) (1996-12-01)
Re: language syntax for representing concurrency silver@zko.dec.com (Brian Silver) (1996-12-03)
Re: language syntax for representing concurrency bm@cs.columbia.edu (Blair MacIntyre) (1996-12-03)
Re: language syntax for representing concurrency leew@micrologic.com (1996-12-03)
Re: language syntax for representing concurrency gtr@ast.cam.ac.uk (Guy Rixon) (1996-12-07)
Re: language syntax for representing concurrency radenska@cs.uiuc.edu (Boyana Norris) (1996-12-07)
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From: Blair MacIntyre <bm@cs.columbia.edu>
Newsgroups: comp.compilers,comp.programming.threads
Date: 3 Dec 1996 20:50:59 -0500
Organization: Columbia University
References: 96-12-016
Keywords: parallel, design

Thomas Dejanovic <thomasd@cisco.com> writes:


> Anyway I'm having trouble comming up with a clear readable syntax
> to indicate concurrent processes. I do not want the system to
> start from a single main and spawn all the threads, I want it to
> start up with a number of treads executing concurrently and
> comunicating with each other. These threads need not even be on
> the same machine. however the code describing the threads or the
> calls which invoke them may in fact be in the same file.
>
> So does anyone have some neat ideas for representing such a
> concept _clearly_ in an OO way in a language ?


Check out uC++, a multithreaded extension to C++. Threads are
objects, and communicate via method calls. No messages and very
little need for explicit locks.


If you inherit from an object of type uTask (or something like that --
I haven't looked at it in years), whenever you instantiate an object
of your type it creates a new thread.


Their manual has a discussion of their design and the design space, as
they see it.


I think you can find info on it off
http://www.plg.uwaterloo.ca/


--
Blair MacIntyre (bm@cs.columbia.edu), Graduate Student (Graphics and UI Lab)


smail: Dept. of Computer Science, 1214 Amsterdam Ave, Mail Code 0401
              Columbia University, New York, NY 10027-7003
--


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