4 ms·
It's not even undocumented, but explicitly a documented as a feature those CPUs don't have. Originally it was supposed to be fused off physically, I wonder why
by jsnell 5y ago
It's not even undocumented, but explicitly a documented as a feature those CPUs don't have. Originally it was supposed to be fused off physically, I wonder why it wasn't.
- davidlt 5y agoIt could be that decision to not support AVX512 was made very late in product development and thus early batches didn't have chicken bit disabled or/and fused it off. There might be gazillions of reason why this was done.
- sodality2 5y agoTo get the positive wave of initial reviews from people who enable it.
- bee_rider 5y agoWho did this? Phoronix got AVX-512 working, but was very clear that this was unexpected and had a good chance of going away before release. If anything, this is a better test for your reviewers -- if a reviewer has published benchmarks using these unsupported features without mentioning it, you should keep that in mind when listening to their reviews in the future.
- Cloudef 5y agoEasier to sell the same product twice just by flipping a bit in software