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A comment on Does a compiler use all x86 instructions? (2010). Parent comment
GPUs have only something like 1-32 independent very wide MIMD/SIMD units with a lot of hardware threads.
Not sure about Nvidia 1080, but at least 980 has 32 SMM units, each roughly as defined above.
1024 independent cores... that'd be crazy. Surely they would not be cache coherent but only able to talk to immediate neighbors.
It'd be understatement to say that programming that kind of CPU would be challenging...
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GPUs have only something like 1-32 independent very wide MIMD/SIMD units with a lot of hardware threads.
Not sure about Nvidia 1080, but at least 980 has 32 SMM units, each roughly as defined above.
1024 independent cores... that'd be crazy. Surely they would not be cache coherent but only able to talk to immediate neighbors.
It'd be understatement to say that programming that kind of CPU would be challenging...