On 06/17/2013 11:03 PM, Julian Taylor wrote:
> On 17.06.2013 17:11, Frédéric Bastien wrote:
>> Hi,
>>
>> I saw that recently Julian Taylor is doing many low level optimization
>> like using SSE instruction. I think it is great.
>>
>> Last year, Mark Florisson released the minivect[1] project that h
I am building numpy from source, python setup.py build --fcompiler=gnu95
then installation, python setup.py install --user, on ubuntu 13.04
for analysis results
pprof --svg /usr/bin/python py.prof
On Mon, Jun 17, 2013 at 10:04 PM, Nathaniel Smith wrote:
> On Mon, Jun 17, 2013 at 4:29 PM, Arin
On 17.06.2013 17:11, Frédéric Bastien wrote:
> Hi,
>
> I saw that recently Julian Taylor is doing many low level optimization
> like using SSE instruction. I think it is great.
>
> Last year, Mark Florisson released the minivect[1] project that he
> worked on during is master thesis. minivect is
On Mon, Jun 17, 2013 at 4:29 PM, Arink Verma wrote:
> Hi Nathaniel
>
>> It's a probabilistic sampling profiler, so if it doesn't have enough
>> samples then it can miss things. 227 samples is way way too low. You need to
>> run the profiled code for longer (a few seconds at least), and if that's n
>
>
> Not sure what you are profiling. The PyArray_DESCR call just returns a
> pointer to the descr contained in an ndarray instance, so probably has
> little relevance here.
>
I am profiling following code
timeit.timeit('x+y',number=10,setup='import numpy as np;x =
np.asarray(1.0);y = np
On Mon, Jun 17, 2013 at 9:29 AM, Arink Verma wrote:
> Hi Nathaniel
>
> It's a probabilistic sampling profiler, so if it doesn't have enough
>> samples then it can miss things. 227 samples is way way too low. You need
>> to run the profiled code for longer (a few seconds at least), and if that's
>
Hi Nathaniel
It's a probabilistic sampling profiler, so if it doesn't have enough
> samples then it can miss things. 227 samples is way way too low. You need
> to run the profiled code for longer (a few seconds at least), and if that's
> not enough then maybe increase the sampling rate too (though
Hi,
I saw that recently Julian Taylor is doing many low level optimization like
using SSE instruction. I think it is great.
Last year, Mark Florisson released the minivect[1] project that he worked
on during is master thesis. minivect is a compiler for element-wise
expression that do some of the
Hi,
On Mon, Jun 17, 2013 at 12:07 PM, Bala subramanian
wrote:
> Friends,
> I have to save only the lower half of a symmetric matrix to a file. I used
> numpy.tril to extract the lower half. However when i use 'numpy.savetxt',
> numpy saves the whole matrix (with upper half values replaced as zero
On Mon, Jun 17, 2013 at 01:07:34PM +0200, Bala subramanian wrote:
>Friends,
>I have to save only the lower half of a symmetric matrix to a file. I used
>numpy.tril to extract the lower half. However when i use 'numpy.savetxt',
>numpy saves the whole matrix (with upper half values re
Friends,
I have to save only the lower half of a symmetric matrix to a file. I used
numpy.tril to extract the lower half. However when i use 'numpy.savetxt',
numpy saves the whole matrix (with upper half values replaced as zeros)
rather than only the lower half. Any better idea to achieve this.
as
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