[MacPorts] #27600: atlas takes a long time to build

[MacPorts]

#27600: atlas takes a long time to build
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  Reporter:  ryantkoehler@…  |      Owner:  jameskyle@…
      Type:  defect          |     Status:  closed
  Priority:  Normal          |  Milestone:
 Component:  ports           |    Version:  1.9.2
Resolution:  wontfix         |   Keywords:
      Port:  atlas           |
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Comment (by vince@…):

 Atlas has its own parallel build process. Since all cores share L2 cache,
 it cannot safely run time measurements on two or more cores
 simultaneously, because this could cause spurious cache coherency and
 introduce a bias. That’s why it does compile several pieces of code in
 parallel, but tests each one serially.

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Ticket URL: <https://trac.macports.org/ticket/27600#comment:20>
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