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  3. June 2002

RE: Fractional LPAR

Terry,

We are running it on an 820 uni and have not had any issues.

Al Barsa's comment about the uni being more stable than the 2-way reminds me
of a presentation I heard one time in Rochester. The guy was talking about
shared memory, execution threads, instruction sequencing, mutexes, races and
that sort of thing. Much of it was over my head but I remember walking away
with the definite concept that to properly QA a multithreaded application,
one would HAVE to test it on an multi-processor machine. That is the only
way to truly get instructions/threads executing simultaneously so you can
really test the relevant portions of code. I wonder if whatever instability
you have noticed in your 2-way is the result of this type of thing.

-Marty

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