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The Xeon Phi was a “manycore” x86 design with lots of tiny CPU cores, something like the original Pentium, but with the addition of 512-bit SIMD and hyperthread
by pavlov 2y ago
The Xeon Phi was a “manycore” x86 design with lots of tiny CPU cores, something like the original Pentium, but with the addition of 512-bit SIMD and hyperthreading:
https://en.m.wikipedia.org/wiki/Xeon_Phi https://en.m.wikipedia.org/wiki/Xeon_Phi
- rbanffy 2y agoIIRC the first Phi has SMT4 in a round robin fashion similar to the Cell PPUs. To make a core run at full speed, you should schedule 4 threads on it.
- p_l 2y agoThe very, very first Phi still had its ROPs and texture units, being essentially a failed GPU with identifying marks filed off (yes, the first units were Larrabee prototypes with video outputs unpopulated)
- rbanffy 2y ago> the first units were Larrabee prototypes with video outputs unpopulated Such a shame. I'd love to base a workstation on those. Seems to be a hobby I never quite act upon - to misuse silicon and make it work as a workstation.