clFFT | a software library containing FFT functions | Video Utils library
kandi X-RAY | clFFT Summary
kandi X-RAY | clFFT Summary
The FFT is an implementation of the Discrete Fourier Transform (DFT) that makes use of symmetries in the FFT definition to reduce the mathematical intensity required from O(N^2) to O(N log2(N)) when the sequence length N is the product of small prime factors. Currently, there is no standard API for FFT routines. Hardware vendors usually provide a set of high-performance FFTs optimized for their systems: no two vendors employ the same interfaces for their FFT routines. clFFT provides a set of FFT routines that are optimized for AMD graphics processors, but also are functional across CPU and other compute devices.
Support
Quality
Security
License
Reuse
Top functions reviewed by kandi - BETA
Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of clFFT
clFFT Key Features
clFFT Examples and Code Snippets
Community Discussions
Trending Discussions on clFFT
QUESTION
I want to develop an OpenCL based application with host code in C, using Ubuntu.
But the development packages overwhelm me:
...ANSWER
Answered 2020-Sep-28 at 20:57You don't need any of them. See this answer.
QUESTION
I try to build clFFT
library (for doing FFT with OpenCL) and examples contained into clFFT git
.
1) First, into /opt/
, I did :
git clone https://github.com/clMathLibraries/clFFT.git
2) After, always into /opt/
directory, I did : $ mkdir build && cd build/
3) from here, I called cmake
like this :
cmake -DOpenCL_INCLUDE_DIR=/opt/AMDAPPSDK-3.0/include -DOpenCL_LIBRARY=/opt/AMDAPPSDK-3.0/lib/x86_64 ../clFFT/src/
Indeed, into /opt/
directory, I have installed AMDAPPSDK-3.0
from the AMD-APP-SDKInstaller-v3.0.130.136-GA-linux64.tar.bz2
archive.
4) Everything seems to be valid for the compilation of clFFT but it fails :
4.1) First, at the end of cmake
command above, I get :
ANSWER
Answered 2019-Nov-21 at 04:28The cmake
setup on your machine should have an OpenCL finder, which is called by the command find_package(OpenCL)
when the cmake
executes the CMakeLists.txt
file from the clFFT
distribution (this command can be used also in your own CMakeLists.txt
files). This finder is simply a file, named FindOpenCL.cmake
, which must be a part of the cmake
configuration. Make sure you have this file:
QUESTION
I am trying to perform a complex 1D FFT on the outer dimension of a 2D array using the clFFT library.
Using an array that is NxM where M is the inner dimension (contiguous in memory), I want to take the FFT over N. I thought I could accomplish this by setting the stride to M. However, when M is 2, the FFT is as expected for m=0 but is something unknown for m=1. Any thoughts would be greatly appreciated.
Here is what I have for the plan setup:
...ANSWER
Answered 2018-Jan-12 at 22:40Thanks to tingxing dong on the clmath forum for answering:
https://groups.google.com/forum/#!topic/clmath/hWppfghKvN4
Summary
You do multiple 1Ds with each 1D at a time. or You do batched 1D with many 1D simultaneously.
Both of the two cases, you need to carefully offset your input buffer and output buffer to make sure it is pointing to the correct address.
It works properly when I set the stride (clfftSetPlanInStride and clfftSetPlanOutStride), batch size (clfftSetPlanBatchSize) to M, and set distance (clfftSetPlanDistance) to 1.
QUESTION
I would like to generate, with VIM, pretty HTML code of code snippet (C, python or others).
Right now, I know only the command under VIM ":TOhtml
" but the result seems to be too basic.
Here's an example of what I would like to get (with lines number and round corners) :
Does anyone know a way to produce quickly this kind of presentation ?. Even if VIM can't do it, is there a tool which allows to take the raw code section and generate directly HTML code with necessary customisable CSS ?
UPDATE 1 :
I found partially a solution by firstly showing the lines numbers with ":%set nu" and doing ":TOhtml".
So I get for example the following code snippet :
...ANSWER
Answered 2017-Feb-14 at 15:59One option is to use highlight, and pipe your buffer through it:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install clFFT
Support
Reuse Trending Solutions
Find, review, and download reusable Libraries, Code Snippets, Cloud APIs from over 650 million Knowledge Items
Find more librariesStay Updated
Subscribe to our newsletter for trending solutions and developer bootcamps
Share this Page