Understanding POWER multiprocessors

  title={Understanding POWER multiprocessors},
  author={Susmit Sarkar and Peter Sewell and Jade Alglave and Luc Maranget and Derek Williams},
Exploiting today's multiprocessors requires high-performance and correct concurrent systems code (optimising compilers, language runtimes, OS kernels, etc.), which in turn requires a good understanding of the observable processor behaviour that can be relied on. Unfortunately this critical hardware/software interface is not at all clear for several current multiprocessors. In this paper we characterise the behaviour of IBM POWER multiprocessors, which have a subtle and highly relaxed memory… CONTINUE READING
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