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To: Tenchusatsu who wrote (69448)	1/30/2002 8:06:01 PM
From: pgerassi	Read Replies (2) \| Respond to of 275872

Dear Tench: What do you think NUMA means anyway? Non uniform memory access means that to get to some memory you must pass through a different means than local memory. It usually refers to all systems where the access time to a given memory location is different depending on which CPU is requesting the operation. Whether the memory is interconnected using custom chipsets, communication lines or other means is irrelevant to the use of that definition. IBM does not refer to its cluster as a NUMA machine either nor does many of the massively multi-processor clusters. Since it is obvious that these systems fit that definition, it should not need to be spelled out. Just like a Corvette is a 4 wheel internal combustion mobile vehicle. But, they do not call it one in their ads. IBM adds memory per CPU node in their clusters and sells it that way. Intel's 8 way P3 Xeons are a shared memory or UMA, uniform memory access system. But you don't see them use either term in their ads. Pete