[Numpy-discussion] Memory leak in array protocol numarray<--numpy

[Francesc A. <fa...@ca...>]

Hi,

I was tracking down a memory leak in PyTables and it boiled down to a probl=
em=20
in the array protocol. The issue is easily exposed by:

for i in range(1000000):
    numarray.array(numpy.zeros(dtype=3Dnumpy.float64, shape=3D3))

and looking at the memory consumption of the process. The same happens with:

for i in range(1000000):
    numarray.asarray(numpy.zeros(dtype=3Dnumpy.float64, shape=3D3))

However, the numpy<--numarray sense seems to work well.

for i in range(1000000):
    numpy.array(numarray.zeros(type=3D"Float64", shape=3D3))

Using numarray 1.5.1 and numpy 1.0b1

I think this is a relatively important problem, because it somewhat prevent=
s a=20
smooth transition from numarray to NumPy.=20

Thanks,

=2D-=20
>0,0<   Francesc Altet =A0 =A0 http://www.carabos.com/
V   V   C=E1rabos Coop. V. =A0=A0Enjoy Data
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