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Post# of 98354
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pgerassi

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pgerassi

Re: mmoy post# 49109

Thursday, 12/09/2004 12:40:57 PM

Thursday, December 09, 2004 12:40:57 PM

Post# of 98354
Dear Mmoy:

Simple fact that none of the A64s have a Coherent HT link and that they have one noncoherent 16/16HT link for IO. An Opteron 1xx has 3 noncoherent 16/16HT links. An Opteron 2xx has 1 coherent and 2 noncoherent 16/16HT links. An Opteron 8xx has 3 coherent 16/16HT links. You need at least 1 coherent link in each CPU to pass cache coherency information back and forth.

Pete
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