[MacPorts] #22936: numpy atlas segmentation fault

MacPorts noreply at macports.org
Fri Dec 18 07:45:47 PST 2009


#22936: numpy atlas segmentation fault
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 Reporter:  jjstickel@…        |       Owner:  macports-tickets@…                   
     Type:  defect             |      Status:  new                                  
 Priority:  Normal             |   Milestone:                                       
Component:  ports              |     Version:  1.8.1                                
 Keywords:  numpy atlas        |        Port:                                       
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 Not sure if this is a bug in atlas or numpy (I think atlas).  If I run the
 following test script involving a multiplication of two non-square
 matrices of a reasonable size, I get a segmentation fault:

 {{{
 #!/usr/bin/env python
 """
 segfaults with numpy.dot for reasonably sized arrays
 """
 import numpy as np
 n = 100
  # segfualt for n > 51
 B = np.dot( np.random.rand(n,n), np.random.rand(n,n+1) )
 print(B.shape)
 }}}

 A workaround is to use the no_atlas variant of numpy.  I tested with both
 py25-numpy and py26-numpy.  I am on Tiger with Intel cpu.

-- 
Ticket URL: <http://trac.macports.org/ticket/22936>
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