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by touisteur
298 days ago
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I'm guessing the temperature could increase quite fast (milliseconds or less) in heavy duty areas, especially when going scalar-to-dense-vector operations. My best understanding of the avx-512 'power license' debacle on Intel CPUs was that the processor was actually watching the instruction stream and computing heuristics to lower core frequency before reaching avx512 or dense-avx2 instructions. I guessed they knew or worried that even a short large-vector stint would fry stuff... Apparently voltage and thermal sensor have vastly improved and looking at the crazy swings on NVIDIA GPU's clocks seem to agree with this :-) |
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