Talk:Processor consistency
Latest comment: 6 years ago by 188.170.73.110 in topic Is Example 3 really not causally consistent?
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Is Example 3 really not causally consistent?
editThe article claims that execution in Example 3 is not causally consistent. Is it so? W(x)2 in P2 is indeed caused by R(x)1 in P2, but other processors don't see them in different order. The execution would not be causally consistent if P3 or P4 observed R(x)2 R(x)1, but it would be not PC as well. Seems like @Rayman1104: also noticed it and tried to fix, but @Wandering Logic: rolled it back since the new execution failed to be cache coherent. What's the intended example? --188.170.73.110 (talk) 08:03, 2 August 2017 (UTC)