On 06/14/2016 01:05 PM, Nathaniel Smith wrote:
On Jun 14, 2016 12:38 PM, "Burlen Loring" <mailto:blor...@lbl.gov>> wrote:
>
> On 06/14/2016 12:28 PM, Julian Taylor wrote:
>>
>> On 14.06.2016 19:34, Burlen Loring wrote:
>>
>>>
>>>
On 06/14/2016 12:28 PM, Julian Taylor wrote:
On 14.06.2016 19:34, Burlen Loring wrote:
here's my question: given Py_BEGIN_ALLOW_THREADS is used by numpy how
can numpy be thread safe? and how can someone using the C-API know where
it's necessary to acquire the GIL? Maybe someone c
2:#define
NPY_BEGIN_ALLOW_THREADS Py_BEGIN_ALLOW_THREADS
./numpy/core/include/numpy/ndarraytypes.h:952:#define
NPY_BEGIN_ALLOW_THREADS
On 06/13/2016 07:07 PM, Nathaniel Smith wrote:
Hi Burlen,
On Jun 13, 2016 5:24 PM, "Burlen Loring" wrote:
Hi All,
I'm working on a th
Hi All,
I'm working on a threaded pipeline where we want the end user to be able
to code up Python functions to do numerical work. Threading is all done
in C++11 and in each thread we've acquired gill before we invoke the
user provided Python callback and release it only when the callback
ret
Hi All,
in my c++ code I've added Python binding via swig. one scenario is to
pass a python function to do some computational work. the Python program
runs in serial in the main thread but work is handled by a thread pool,
the callback is invoked from another thread on unique data. Before a
t
() call inside a C++ singleton, and put
> that singleton in a dynamic library that all my packages link to, thus
> insuring that it gets called once and only once.
>
> -Bill
>
> On Nov 14, 2013, at 11:10 AM, Burlen Loring wrote:
>
>> Hi David,
>>
>> Yes, that t
foo_wrap.c by a typemap,
> for example a typemap from numpy.i .
>
> Do you use PyArray_Check in the foo_wrap.c or in another file? Is
> PyArray_Check in called in another C library, that _foo.so is linked
> with?
>
> David
>
> Quoting Burlen Loring (2013-11-14 02:21:19)
>&
Hi,
I'd like to add numpy support to an existing code that uses swig. I've
changed the source file that has code to convert python lists into
native data from c to c++ so I can use templates to handle data
conversions. The problem I'm having is a segfault on PyArray_Check
called from my c++ so
nal image? (allclose returned
> True for a little test I did here)
> 2) does scipy.fftpack.fft2 yield the same result?
>
> //Torgil
>
>
> On Thu, Dec 29, 2011 at 6:32 PM, Burlen Loring
> wrote:
>> hmmph, I used both fftn and fft2, they both produce the same result. Is
>>
l discrete Fourier Transform.
>
>
> On Wed, Dec 28, 2011 at 10:05 PM, Burlen Loring
> wrote:
>> Hi
>>
>> I have an image I need to do an fft on, I tried numpy.fft but results are
>> not what I expected, and differ from matlab.
>>
>> My input image is a
Hi
I have an image I need to do an fft on, I tried numpy.fft but results are
not what I expected, and differ from matlab.
My input image is a weird size, 5118x1279, I think numpy fft is not liking it.
In
numpy the fft appears to be computed multiple times and tiled across the
output image. In o
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