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by Tuna-Fish
1086 days ago
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This is not just in your head. Most Intel ISA extensions come from either customers asking for specific instructions, or from Intel engineers (from the hardware side) proposing reasonable extensions to what already exists. LRBni, which eventually morphed into AVX-512, was developed by a team mostly consisting of programmers without long ties to Intel hw side, as a greenfield project to make an entirely new vector ISA that should be good from the standpoint of a programmer. I strongly feel that they have succeeded, and AVX-512 is transformative when compared to all previous Intel vector extensions. The downside is that as they had much less input and restraint from the hw side, it's kind of expensive to implement, especially in small cores. Which directly led to its current market position. |
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