[Beowulf] Haswell as supercomputer microprocessors

[Mikhail Kuzminsky]

 New special supercomputer microprocessors (like IBM Power BQC and Fujitsu SPARC64 XIfx) have 2**N +2 cores (N=4 for 1st, N=5 for 2nd), where 2 last cores are redundant, not for computations, but only for other work w/Linux or even for replacing of failed computational core.

Current Intel Haswell E5 v3 may also have 18 = 2**4 +2 cores.  Is there some sense to try POWER BQC or SPARC64 XIfx ideas (not exactly), and use only 16 Haswell cores for parallel computations ? If the answer is "yes", then how to use this way under Linux ?

Mikhail Kuzminsky, 
Zelinsky Institute of Organic Chemistry RAS,
Moscow




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