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Eagerly awaiting 3-rd gen Threadripper. That CPU will completely obliterate Intel in the HEDT/Workstation market. Best I can tell, short of moving AVX512 (along
by m0zg 7y ago
Eagerly awaiting 3-rd gen Threadripper. That CPU will completely obliterate Intel in the HEDT/Workstation market. Best I can tell, short of moving AVX512 (along with, e.g. VNNI) into their HEDT chips (which is not going to happen), Intel has nothing to counter this threat.
- wmf 7y agoSkylake-X already has AVX512 and Cascade Lake-X will have VNNI. Few workstation apps use them, though.
- m0zg 7y agoLooks like you're right. The pricing on those chips is pretty outrageous at the moment though. MKL and MKL-DNN take advantage of AVX512 and VNNI automatically, if available. Lots of scientific software (basically all of it that cares about CPU perf) use MKL and MKL-DNN.
- kllrnohj 7y agoSimply having AVX512 support doesn't really tell you the whole story, though. You'd want to actually benchmark it and see how much it's helping and then how it compares to the competition. AVX512 comes with an insane clock speed penalty, so while it can still put up some really impressive numbers, mixed workloads can also end up not any faster (or even slower).
- marmaduke 7y agoYep I've heard this as well. More often than not it's faster to avoid AVX512 on recent Xeons. I don't think the same is true for Xeon Phi but those are going away.