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reikna
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reikna
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Luis Perdigao
Sep 14
FFT of large 3D arrays, memory issue
Dear all, I have recently been trying Reikna to perform FFT and deconvolution algorithms using OpenCL
unread,
FFT of large 3D arrays, memory issue
Dear all, I have recently been trying Reikna to perform FFT and deconvolution algorithms using OpenCL
Sep 14
Jorge Aguilar
,
Bogdan Opanchuk
14
Aug 16
Call consecutive kernels correctly
Hi again Bogdan, sorry for the delay due to the holidays. I cloned the repository from the link and I
unread,
Call consecutive kernels correctly
Hi again Bogdan, sorry for the delay due to the holidays. I cloned the repository from the link and I
Aug 16
Radio Geek
,
Bogdan Opanchuk
6
Mar 23
Problem with FFT spectrogram example
Thank you, I think I understand what's happening now. Transpose was trying to make a kernel with
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Problem with FFT spectrogram example
Thank you, I think I understand what's happening now. Transpose was trying to make a kernel with
Mar 23
Gregor Taylor
,
Bogdan Opanchuk
11
Jan 22
FFT implementation
> do they feedback of when they've sorted issues or is it more of we just try it after each
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FFT implementation
> do they feedback of when they've sorted issues or is it more of we just try it after each
Jan 22
Michael Wallace
,
Bogdan Opanchuk
11
3/12/20
Advice on Phase Correlation Implementation
Hi Michael, Sorry for a delayed reply, I got caught up in work and completely forgot about this
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Advice on Phase Correlation Implementation
Hi Michael, Sorry for a delayed reply, I got caught up in work and completely forgot about this
3/12/20
ivb...@gmail.com
,
Bogdan Opanchuk
16
2/5/20
Tinker Board, Armv7, FFT on Mali GPU
I meant the problem size specifically, that is yes, the axes over which the transformation is
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Tinker Board, Armv7, FFT on Mali GPU
I meant the problem size specifically, that is yes, the axes over which the transformation is
2/5/20
Mike
, …
Mike
12
1/17/20
PyOpenCL Buffer Usage/Transfer in reikna FFT
Thanks for all your help, I really appreciate it! With your changes I think I have a working version
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PyOpenCL Buffer Usage/Transfer in reikna FFT
Thanks for all your help, I really appreciate it! With your changes I think I have a working version
1/17/20
jori...@gmail.com
,
Bogdan Opanchuk
2
5/7/19
slicing in computation arguments
Yes, it is intentional. Kernel.prepared_call() is low-level (CLUDA level), it does not know about
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slicing in computation arguments
Yes, it is intentional. Kernel.prepared_call() is low-level (CLUDA level), it does not know about
5/7/19
jori...@gmail.com
,
Bogdan Opanchuk
8
4/21/19
transformation question
I think I realized the answer... Seems like computation's input is computation's input.
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transformation question
I think I realized the answer... Seems like computation's input is computation's input.
4/21/19
jori...@gmail.com
,
Bogdan Opanchuk
3
4/4/19
math functions
Hi Dmitry, You can use `functions.polar_unit()` (http://reikna.publicfields.net/en/latest/api/cluda.
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math functions
Hi Dmitry, You can use `functions.polar_unit()` (http://reikna.publicfields.net/en/latest/api/cluda.
4/4/19
dan89p...@gmail.com
,
Bogdan Opanchuk
5
3/16/19
using local memory
It can be solved in momentum space, but that's not the method I'm using, because it cannot be
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using local memory
It can be solved in momentum space, but that's not the method I'm using, because it cannot be
3/16/19
martin.guti...@gmail.com
,
Bogdan Opanchuk
5
1/31/19
Wrong result with FFT if (big) array size not power of 2
Thank you, I will take it into account then and only use power-of-2 sizes.
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Wrong result with FFT if (big) array size not power of 2
Thank you, I will take it into account then and only use power-of-2 sizes.
1/31/19
Chen Dong
,
Bogdan Opanchuk
2
1/24/19
Having 1 cpu + 1 GPU , how to choose special device when using reikna cluda.ocl_api?
There are three possible ways. First, you can select the device manually and pass it to the Thread
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Having 1 cpu + 1 GPU , how to choose special device when using reikna cluda.ocl_api?
There are three possible ways. First, you can select the device manually and pass it to the Thread
1/24/19
rohit.s...@gmail.com
,
Bogdan Opanchuk
15
1/15/19
FFT on Reikna
I read the PyCUDA documentation and learned the CUDA contexts are a per-thread affair. I used that
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FFT on Reikna
I read the PyCUDA documentation and learned the CUDA contexts are a per-thread affair. I used that
1/15/19
wagner...@gmx.at
,
Bogdan Opanchuk
3
6/29/18
Using reikna in different processes
Hi! Thanks for that tip. I'm using linux, where the multiprocessing module forks per default.
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Using reikna in different processes
Hi! Thanks for that tip. I'm using linux, where the multiprocessing module forks per default.
6/29/18
anush2...@gmail.com
,
Bogdan Opanchuk
2
9/12/17
is it possible to write python code inside source module rather than C code?
Source modules are compiled and executed on a GPU, so Python is not available there. You will have to
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is it possible to write python code inside source module rather than C code?
Source modules are compiled and executed on a GPU, so Python is not available there. You will have to
9/12/17
smu...@uchicago.edu
,
Bogdan Opanchuk
2
5/3/17
Performance issues on GPU
Hi Seth, I replied to you on SO, it is quite a long answer because I also had some comments about the
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Performance issues on GPU
Hi Seth, I replied to you on SO, it is quite a long answer because I also had some comments about the
5/3/17
smu...@uchicago.edu
,
Bogdan Opanchuk
6
4/28/17
Using Reikna with PyOpenCL
Hi Bogdan, It works! Thanks for bearing with me, Seth
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Using Reikna with PyOpenCL
Hi Bogdan, It works! Thanks for bearing with me, Seth
4/28/17
florian...@ensta-bretagne.org
,
Bogdan Opanchuk
4
4/27/17
Transformation without load_same nor store_same
Oh, I think I see what you mean. You can make it work by using `dtypes.c_constant()` function like so
unread,
Transformation without load_same nor store_same
Oh, I think I see what you mean. You can make it work by using `dtypes.c_constant()` function like so
4/27/17
florian...@ensta-bretagne.org
,
Bogdan Opanchuk
4
4/26/17
zero-padding before computing a FFT from a combination of two reals
Hi Florian, The thing with transformations is that they are called (in chain, according to their
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zero-padding before computing a FFT from a combination of two reals
Hi Florian, The thing with transformations is that they are called (in chain, according to their
4/26/17
florian...@ensta-bretagne.org
,
Bogdan Opanchuk
4
4/25/17
Best way to perform multiple FFT (same shape and dtype)
Thanks for your answer Bogdan, it was very clear! Indeed, misc.lena() returns a gray level image.
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Best way to perform multiple FFT (same shape and dtype)
Thanks for your answer Bogdan, it was very clear! Indeed, misc.lena() returns a gray level image.
4/25/17
simon...@gmail.com
,
Bogdan Opanchuk
5
3/16/17
2D FFT
Thanks sorted now.
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2D FFT
Thanks sorted now.
3/16/17
zlff...@gmail.com
,
Bogdan Opanchuk
2
3/7/17
FFT using multiple GPUs with reikna
No, unfortunately, currently there is no support in Reikna for that. In fact, there is not any
unread,
FFT using multiple GPUs with reikna
No, unfortunately, currently there is no support in Reikna for that. In fact, there is not any
3/7/17
zlff...@gmail.com
,
Bogdan Opanchuk
7
2/21/17
choosing axis of 3D FFT
I've found the error in my code. All problem is solved. Thank you!
unread,
choosing axis of 3D FFT
I've found the error in my code. All problem is solved. Thank you!
2/21/17
zlff...@gmail.com
,
Bogdan Opanchuk
2
2/15/17
how can i free all memory on gpu after using it?
context.pop() is called when the Thread object is deleted, which in CPython will happen when the last
unread,
how can i free all memory on gpu after using it?
context.pop() is called when the Thread object is deleted, which in CPython will happen when the last
2/15/17
zlff...@gmail.com
,
Bogdan Opanchuk
4
2/14/17
Could you let me know if this usage of FFT in reikna works?
Thank you, i'm stick to use real input. I will follow you're first advice. Thanks.
unread,
Could you let me know if this usage of FFT in reikna works?
Thank you, i'm stick to use real input. I will follow you're first advice. Thanks.
2/14/17
zlff...@gmail.com
,
Bogdan Opanchuk
4
2/14/17
How do i get frequency using reikna?
if the result of fft using reikna is same as np.fft.ffn , the problem is solved. Thank you very much,
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How do i get frequency using reikna?
if the result of fft using reikna is same as np.fft.ffn , the problem is solved. Thank you very much,
2/14/17
Davide Proment
,
Bogdan Opanchuk
8
2/12/17
Some tests failed
Ok, I submitted the bug, but it may be a while until there's any response. As for the compilation
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Some tests failed
Ok, I submitted the bug, but it may be a while until there's any response. As for the compilation
2/12/17
zlff...@gmail.com
,
Bogdan Opanchuk
2
2/12/17
Is there any method to get mean values of 2D array in gpu?
The support for strides in PyOpenCL/PyCUDA was patchy when I last tried it, and I haven't
unread,
Is there any method to get mean values of 2D array in gpu?
The support for strides in PyOpenCL/PyCUDA was patchy when I last tried it, and I haven't
2/12/17
zlff...@gmail.com
,
Bogdan Opanchuk
3
2/1/17
complex 3d array multiplication with reikna
Oh it works!! Thanks a bunch ! you really saved me Also thanks for quick answer!
unread,
complex 3d array multiplication with reikna
Oh it works!! Thanks a bunch ! you really saved me Also thanks for quick answer!
2/1/17
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