[Numpy-discussion] advanced indexing bug with huge arrays?

Samuel John scipy@samueljohn...
Tue Jan 24 16:32:50 CST 2012


On 23.01.2012, at 11:23, David Warde-Farley wrote:
>> a = numpy.array(numpy.random.randint(256,size=(5000000,972)),dtype='uint8')
>> b = numpy.random.randint(5000000,size=(4993210,))
>> c = a[b]
>> In [14]: c[1000000:].sum()
>> Out[14]: 0

Same here.

Python 2.7.2, 64bit, Mac OS X (Lion), 8GB RAM, numpy.__version__ = 2.0.0.dev-55472ca
[GCC 4.2.1 (Based on Apple Inc. build 5658) (LLVM build 2336.1.00)]
Numpy built without llvm.


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