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Your initial claim was ambiguous. It sounded like you claimed that using only one core you already reach 1 TFLOP/s, implying that you could reach more than tha
by adrian_b 2y ago
Your initial claim was ambiguous.
It sounded like you claimed that using only one core you already reach 1 TFLOP/s, implying that you could reach more than that by using more cores, which is false.
Now you have clarified that you actually claim that it is good that when using a single core you can reach the maximum throughput of the shared matrix operation accelerator.
This is correct, but there is no essential difference between this and a Zen 5 CPU that reaches this throughput by using only half of the cores, while having the other half of the cores free to do any other tasks.
- stephencanon 2y agoWhat’s the power draw of however many zen 5 cores you have to tie up to hit, say, 1.5tflop/s on sgemm? (Also, that’s a M2 number, since that’s what OP was talking about. Someone will presumably post M4 benchmarks for BLAS sometime soon, if they haven’t already.)