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.
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
Hi,
On Mon, Jun 17, 2013 at 12:07 PM, Bala subramanian
bala.biophys...@gmail.com 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
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 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
On Mon, Jun 17, 2013 at 9:29 AM, Arink Verma arinkve...@gmail.com 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),
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 =
On Mon, Jun 17, 2013 at 4:29 PM, Arink Verma arinkve...@gmail.com 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),
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 a
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 n...@pobox.com wrote:
On Mon, Jun 17, 2013 at
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 he
worked on
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