Tenstorrent unveils Grayskull, its RISC-V answer to GPUs

Re:Tenstorrent unveils Grayskull, its RISC-V answer to GPUs by paulmd on Sunday March 10, 2024 @05:07PM (#39662536)

They 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).

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Re:Tenstorrent unveils Grayskull, its RISC-V answer to GPUs by loeg on Sunday March 10, 2024 @07:51PM (#39663450)

Intel switched to a mesh model: https://en.wikichip.org/wiki/intel/mesh_interconnect_archite...

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Re:Tenstorrent unveils Grayskull, its RISC-V answer to GPUs by paulmd on Sunday March 10, 2024 @08:15PM (#39663578)

not 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

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