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A Three-Way AMD Opteron Server

Posted by kdawson on from the one-hop dept.

Abdul tips a thin little review up at The Inquirer of the Themis Slice. "The Slice is a three socket Opteron machine with two PCIe slots and two Infiniband 4x ports... Why would you want three sockets rather than four? Easy, latency. Any CPU in a 3S system is one hop away from any other CPU. In a 4S system, you can be two hops away. This adds latency, and more importantly, you take a big hit on cache coherency latency. This kills performance."

2 of 137 comments (clear)

  1. Re:Weird by ItsLenny · · Score: 0, Flamebait

    Isn't this only a problem with NUMA based systems

    NUMA?
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    Trying to fix or change something only guarantees and perpetuates it's existence
  2. 3 is a magic number! by wwmedia · · Score: 0, Flamebait

    so 3 is better than 4?

    is this AMDs way of saying "oh look we cant make a proper quad core system like intel so we just make 3 the magic number! and everyone will buy our marketing technobable crap"