designed to play nice within their specially designed message sharing 
space, and the host OS probably needs some kind of NUMA support (which 
Linux does have).

     This technique would be most helpful for serving simulations that 
are "embarrassingly parallel" (or merely factorizable into 
non-interacting or weakly interacting parts) but which have to compare 
some manageable bandwidth of notes every once in a while on their 
relative states, positions, and whatever fields or forces they might be 
mutually generating or reacting to and report their states to a renderer 
(presumably running on its own Squeak instance with access to a fast 
video card).

     So, does the Squeak VM use any system-absolute global variables 
that would prevent one from running multiple instances of itself as 
separate processor-bound processes on a SMP supercomputer?

     Thanks again.

               -- Ed Boyce

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Ed Boyce
Boston University Center for Computational Science
EOT-PACI Program -- http://www.eot.org
(413) 245-3997
edboyce@bu.edu