[NumPy-Tickets] [NumPy] #533: numpy.trace is slow for small dimensions

[NumPy Trac]

#533: numpy.trace is slow for small dimensions
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 Reporter:  pv                 |       Owner:  pv   
     Type:  enhancement        |      Status:  new  
 Priority:  normal             |   Milestone:  2.0.0
Component:  numpy.core         |     Version:  none 
 Keywords:  trace performance  |  
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Comment(by jpeel):

 Attached a test showing that the real problem is with diagonal. trace
 currently calls diagonal and then sums on the last set of axes. Diagonal
 is fast when called on 2D arrays, but slow over arrays that have more than
 2 dimensions.

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Ticket URL: <http://projects.scipy.org/numpy/ticket/533#comment:7>
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