Intel has done such a good job keeping AVX512 support away from reaching ubiquitous adoption, it's insane. There are so many useful instructions in AVX512 which are just missing from AVX/AVX2 that you can't assume exist, even on modern CPUs, because Intel can't get their shit together.
The core problem was tying instructions to bit width. But I'm actually surprised that they didn't add AVX512 support through double pumped 256-bit operations like AMD did for a while.
The core problem was tying instructions to bit width. But I'm actually surprised that they didn't add AVX512 support through double pumped 256-bit operations like AMD did for a while.