[GHC] #11054: GHC on Windows could not use more than 64 logical processors

[GHC]

#11054: GHC on Windows could not use more than 64 logical processors
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        Reporter:  varosi            |                Owner:  Phyx-
            Type:  feature request   |               Status:  patch
        Priority:  normal            |            Milestone:
       Component:  Runtime System    |              Version:  7.10.2
      Resolution:                    |             Keywords:
Operating System:  Windows           |         Architecture:  x86_64
 Type of failure:  Runtime           |  (amd64)
  performance bug                    |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  #12602            |  Differential Rev(s):  Phab:D2533
       Wiki Page:                    |
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Comment (by Phyx-):

 @varosi, could you hold of on testing the binary. I have just realized
 while re-reading the documents on the subject that processor groups aren't
 uniformly distributed. And this patch assumes they are and that they are
 all the entire group is filled before another is needed.

 Seems Intel had the same issue, I'll respin the patch this week.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11054#comment:14>
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