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Great. Will Intel still disable those features on lower-end chips, thus ensuring that the market share for such features to make sense for developers won't be r
by mtgx 10y ago
Great. Will Intel still disable those features on lower-end chips, thus ensuring that the market share for such features to make sense for developers won't be reached anytime soon after release?
- gpderetta 10y agoThis is a KNL-only feature to workaround a microarchitectural limitation (max two instruction issued per clock) to speed up a few specific benchmarks^Wworkloads.
- nkurz 10y ago1) Saying that it's for benchmarks only seems a little harsh, since once it's in a few BLAS-like libraries it will probably be widely used. 2) I'm pretty sure this won't be in KNL. It's a proposed future extension, and I don't think there has been indication of where or when it might land.
- gpderetta 10y agoYou are right on both counts. From the article, it will supposedly end up on some furure knight variant (as mainstream Xeons have lesa of a need for the "hack").