[PATCH] Allow machine hierarchy expansion

[Jonathan Peyton]

Added comments to clarify

> Okay; please add a comment explaining this; the current definition of maxLevels says:

>  and this gives no indication at all of how this might need to be set to handle oversubscription. There are a few ...

>  but that does not really explain what is going on.



REPOSITORY
  rL LLVM

http://reviews.llvm.org/D9900

Files:
  runtime/src/kmp_affinity.cpp

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