Author: Robert Hyatt
Date: 05:58:26 02/25/03
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On February 24, 2003 at 23:15:31, Jeremiah Penery wrote: >On February 24, 2003 at 20:41:35, Robert Hyatt wrote: > >>there are a couple of companies producing non-NUMA machines. IE Sequent in >>Portland >>Oregon once made a 32-way X86 box. Fully shared memory SMP platform... >> >>But they are not in the PC price range, starting at 1/2 mil and going up >>_quickly_ as you >>add processors. > >You can see the x86 machine I gave statistics for is almost $3 million, so maybe >it is that kind of SMP machine, but I can't say for sure. It is likely. The interconnection hardware dwarfs the cost of the processors when you go to large N SMP machines. Cray had estimated that a 64 CPU machine based on the T90 processor would see over 95% of the total cost spent on the interconnect, which would have made that a _very_ expensive machine as it didn't use microprocessors and the cost of a processor was very non-trivial.
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