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I think the NOC approach is fundamentally similar to Intel's rings that they used for core interconnect back in the mid-2010s. It works. https://www.realworld
by loeg 3y ago
I think the NOC approach is fundamentally similar to Intel's rings that they used for core interconnect back in the mid-2010s. It works.
https://www.realworldtech.com/includes/images/articles/snbep-1.jpg https://www.realworldtech.com/includes/images/articles/snbep...
https://en.wikichip.org/wiki/intel/microarchitectures/sandy_bridge_(client)#Ring_Interconnect https://en.wikichip.org/wiki/intel/microarchitectures/sandy_...
- paulmd 3y agoThey still use this today, and the ring interconnect is also the topology inside zen3/zen4 CCXs (with 8 cores). Ring is one of the simplest and best systems for >4 cores, until you get to about 8-10 cores (at which point you generally split it into multiple “tiers” like multiple CCXs etc).
- loeg 3y agoIntel switched to a mesh model: https://en.wikichip.org/wiki/intel/mesh_interconnect_architecture https://en.wikichip.org/wiki/intel/mesh_interconnect_archite...
- paulmd 3y agonot for consumer chips, which still use the same ringbus design. e-cores do have a CCX/core cluster, but the clusters themselves go on the ringbus lol