[Scipy-tickets] [SciPy] #1347: Memory usage of ndimage.mean grows 4 times with R6836 compared to R6339

SciPy Trac scipy-tickets@scipy....
Thu Dec 9 01:46:24 CST 2010


#1347: Memory usage of ndimage.mean grows 4 times with R6836 compared to R6339
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 Reporter:  gisxperts                         |       Owner:  somebody
     Type:  defect                            |      Status:  new     
 Priority:  high                              |   Milestone:  0.9.0   
Component:  scipy.ndimage                     |     Version:  0.8.0   
 Keywords:  memory consumption, ndimage.mean  |  
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 I used to run a ndimage.mean on the svn version of  0.8dev 6362(also 6339
 is still fine) and it uses 2-3 GB of memory for a 5kx5k float array
 against another 5kx5k int grid

 However with the version from R6836, memory usage for the
 ndimage.mean grows to 13 GB for the same dataset for the same code, which
 eventually stalled my machine and any other processes.

 on a 64 bit ubuntu maschine and compiled it.
 According to SdW it could be due to ENH: ndimage.measurements: refactor
 _stats, however has not been confirmed.

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Ticket URL: <http://projects.scipy.org/scipy/ticket/1347>
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