sgi/sun shared memory machines question

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#303

From: John Lewis
Date: Fri, 11 Sep 1992 12:19

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Someone told me that the SGI multiprocessor machines cannot run
different unix processes on different processors; they can only
run a single (but possibly parallelized) process at a given time.
The reason was said to be that the machines do not implement
any mechanism for simultaneous writes.

Is this correct?  If so, how are simultaneous writes from
different threads of a parallelized process prevented?

Is the new sun multiprocessor (4/690?) similar?

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Path: arc1-ca.pugleaf.net!sparky!uunet!sun-barr!sh.wide!wnoc-tyo-news!etl.go.jp!gama!lab!nttlab!daemon
From: zilla@nj.nec.com (John Lewis)
Newsgroups: fj.mail-lists.parallel
Subject: sgi/sun shared memory machines question
Message-ID: <315385@nttlab.ntt.JP>
Date: 11 Sep 92 12:19:47 GMT
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