Checking the feasibility of such a CPU core/thread count for the future.
Checking the feasibility of such a CPU core/thread count for the future.
No need for two threads per core; some chips support four or more. Intel Xeon Phi, IBM POWER7, and certain POWER9 models all feature four threads per core. IBM POWER8 and most POWER9 variants offer eight threads, similar to Oracle SPARC chips after version T2, plus XMOS embedded chips. Speculations suggest the upcoming Zen generation might provide four threads per core, though this could only be activated on server-grade processors. Most systems favor even numbers because binary operations become simpler (divide by two, shift bits, etc.) and since most hardware relies on two's complement, it’s more efficient.