Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!decwrl!decvax!crltrx!treese
From: treese@crltrx.crl.dec.com (Win Treese)
Newsgroups: comp.sys.dec
Subject: Re: lightweight tasking on the PMAX
Message-ID: <139@crltrx.crl.dec.com>
Date: 9 May 89 05:02:38 GMT
References: <27613@cornell.UUCP>
Reply-To: treese@crltrx.crl.dec.com.UUCP (Win Treese)
Organization: DEC Cambridge Research Lab
Lines: 16

In article <27613@cornell.UUCP> dwg@squid.tn.cornell.edu (David George) writes:
>
> ...
>
>ISIS relies on a lightweight task mechanism to switch between several
>"tasks" within one process.  Task switching basically amounts to 
>longjmps from one task to the next, but there are some complications.
>Several other machines have built-in lightweight task mechanisms:
>Sun's LWP, Next's MACH Cthreads, and Apollo's Tasks.  Does anyone know
>if the PMAX provides similar support?

Ultrix 3.0 on the DECstation 3100 (the current release) does not include
a lightweight task mechanism.

Win Treese						Cambridge Research Lab
treese@crl.dec.com					Digital Equipment Corp.