clFFT | a software library containing FFT functions | Video Utils library

 by   clMathLibraries C++ Version: v2.12.2 License: Apache-2.0

kandi X-RAY | clFFT Summary

kandi X-RAY | clFFT Summary

clFFT is a C++ library typically used in Video, Video Utils applications. clFFT has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

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.
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              clFFT has a low active ecosystem.
              It has 562 star(s) with 193 fork(s). There are 75 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              There are 32 open issues and 110 have been closed. On average issues are closed in 32 days. There are 6 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of clFFT is v2.12.2

            kandi-Quality Quality

              clFFT has no bugs reported.

            kandi-Security Security

              clFFT has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

            kandi-License License

              clFFT is licensed under the Apache-2.0 License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              clFFT releases are available to install and integrate.
              Installation instructions, examples and code snippets are available.

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            clFFT Key Features

            No Key Features are available at this moment for clFFT.

            clFFT Examples and Code Snippets

            No Code Snippets are available at this moment for clFFT.

            Community Discussions

            QUESTION

            OpenCL development under Ubuntu
            Asked 2020-Sep-28 at 20:57

            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 20:57

            You don't need any of them. See this answer.

            Source https://stackoverflow.com/questions/63942556

            QUESTION

            clFFT compilation issue : undefined reference to `clGetPlatformInfo' and other OpenCL functions
            Asked 2019-Nov-21 at 04:28

            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-3.0from the AMD-APP-SDKInstaller-v3.0.130.136-GA-linux64.tar.bz2archive.

            4) Everything seems to be valid for the compilation of clFFT but it fails :

            4.1) First, at the end of cmakecommand above, I get :

            ...

            ANSWER

            Answered 2019-Nov-21 at 04:28

            The 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:

            Source https://stackoverflow.com/questions/56745388

            QUESTION

            1D FFT on second dimension with clFFT
            Asked 2018-Jan-12 at 22:40

            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 22:40

            Thanks 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.

            Source https://stackoverflow.com/questions/48217957

            QUESTION

            Looking for a way to produce directly pretty code section in HTML with VIM
            Asked 2017-Mar-24 at 06:55

            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 15:59

            One option is to use highlight, and pipe your buffer through it:

            Source https://stackoverflow.com/questions/41821356

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install clFFT

            | Build branch | master | develop | |-----|-----|-----| | GCC/Clang x64 | [![Build Status](https://travis-ci.org/clMathLibraries/clFFT.svg?branch=master)](https://travis-ci.org/clMathLibraries/clFFT/branches) | [![Build Status](https://travis-ci.org/clMathLibraries/clFFT.svg?branch=develop)](https://travis-ci.org/clMathLibraries/clFFT/branches) | | Visual Studio x64 | |[![Build status](https://ci.appveyor.com/api/projects/status/facii32v72y98opv/branch/develop?svg=true)](https://ci.appveyor.com/project/kknox/clfft-whc3m/branch/develop) |.

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