[MacPorts] #58932: py-tensorflow: reduce build time

[MacPorts]

#58932: py-tensorflow: reduce build time
----------------------------+--------------------------
  Reporter:  ryandesign     |      Owner:  emcrisostomo
      Type:  enhancement    |     Status:  assigned
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:
Resolution:                 |   Keywords:
      Port:  py-tensorflow  |
----------------------------+--------------------------

Comment (by ryandesign):

 The buildbot workers are virtual machines running in VMware ESXi on 2009
 Xserves. The Xserves each have two quad-core processors. I've configured
 the VMs to have 8 virtual cores each. To the VMs, it appears this way:

 {{{
 $ sysctl hw.activecpu
 hw.activecpu: 8
 $ sysctl hw.physicalcpu
 hw.physicalcpu: 8
 %
 }}}

 VMware virtualizes and manages it all somehow so that all the VMs share
 the available CPU resources.

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Ticket URL: <https://trac.macports.org/ticket/58932#comment:8>
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