CS 260r 2017 L6: CertiKOS: An Extensible Architecture for Building Certified Concurrent OS Kernels (2/8)
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Question 1 *
Section 3.4 concerns the semantics of partially-active multicore machines. Given a program P, and a behavior set denoted [[*]], [[P]]_pt(A) describes the observable behaviors when only the CPUs in A are “active,” in the sense the paper defines. Each element of this set may contain observable actions from *any* CPU, either in A or in (C – A). Is there any conceptual difference between the kinds of actions [[P]]_pt(A) will contain for CPUs in A and those for CPUs in (C – A)?
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