Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cornell!dgeorge
From: dgeorge@svax.cs.cornell.edu (David George)
Newsgroups: comp.sys.dec
Subject: lightweight tasking on the PMAX
Message-ID: <27613@cornell.UUCP>
Date: 8 May 89 21:52:43 GMT
Sender: nobody@cornell.UUCP
Reply-To: dwg@squid.tn.cornell.edu (David George)
Organization: Cornell Univ. Program of Computer Graphics, Ithaca NY
Lines: 13

I'm trying to port ISIS, a distributed programming environment, to
the DECstation 3100 (a.k.a. MIPS Machine, PMAX).  My workstations are
running Ultrix 2.0, Revision 7.  For more information about ISIS, see
comp.sys.isis.

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?

Thanks in advance -- Dave.