Author: Robert Henry Durrett
Date: 07:43:09 06/19/02
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On June 19, 2002 at 07:41:16, Andrew Dados wrote: >On June 18, 2002 at 21:38:49, Robert Henry Durrett wrote: > >>On June 18, 2002 at 21:08:00, Tom Kerrigan wrote: >> >>>On June 18, 2002 at 20:35:00, Robert Henry Durrett wrote: >>> >>>>Well, if people only resort to AMP when they absolutely have no choice, then >>>>they are unlikely to discover any of AMPs merits. It is only when they are >>>>willing to explore the unknown that they will see what is possible. >>> >>>The thing is, SMP is kind of a superset of AMP. You can do message passing on an >>>SMP computer if you want, but it's kind of a waste. (Extra work involved.) >> >>The big question in my mind is "Yes, but what ELSE can you do with AMP?" In a >>single processor, the interaction between parallel paths is fixed. The >>programmer can do little or nothing about it. But with separate processors, the >>programmer has more options, or more flexibility. [Or, at least, that's my >>perception of the situation.] > >I think this is wrong. >You can always simulate AMP with SMP without big performance hit; >the other way around is almost impossible. > >-Andrew- (1) Doesn't simulation imply a big performance hit? (2) Why would you ever want to simulate SMP? Bob D.
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