[MacPorts] #19966: ATLAS variant for py25-numpy 1.3.0

[MacPorts]

#19966: ATLAS variant for py25-numpy 1.3.0
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 Reporter:  max@…              |       Owner:  ram@…                
     Type:  enhancement        |      Status:  new                  
 Priority:  Normal             |   Milestone:                       
Component:  ports              |     Version:  1.7.1                
 Keywords:  numpy ATLAS        |        Port:  py25-numpy py26-numpy
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Comment(by max@…):

 Replying to [comment:3 ram@…]:
 > What exactly does linking against atlas do, as the installed contents
 with and without the atlas variant enabled are identical?
 At least for my use-case linking against ATLAS instead of vecLib speeds up
 the computation. It's hard to find any recent data on how vecLib's
 performance is compared ATLAS, but i guess having the option to use ATLAS
 doesnt hurt.

 Replying to [comment:2 ram@…]:
 >Currently SciPy, which has NumPy as a dependency, has multiple variants
 to support different Fortran compilers. As ATLAS has a hard dependency on
 gcc43 these multiple variants will have to be removed.
 I created an enhancement for ATLAS to use gcc variants like SciPy does
 (see ticket [http://trac.macports.org/ticket/20106 #20106]). If/When it
 get's accepted i guess this patch could be applied too?

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Ticket URL: <http://trac.macports.org/ticket/19966#comment:4>
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