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DTolm authored Feb 10, 2023
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# VkFFT - Vulkan/CUDA/HIP/OpenCL/Level Zero/Metal Fast Fourier Transform library
VkFFT is an efficient GPU-accelerated multidimensional Fast Fourier Transform library for Vulkan/CUDA/HIP/OpenCL/Level Zero/Metal projects. VkFFT aims to provide the community with an open-source alternative to Nvidia's cuFFT library while achieving better performance. VkFFT is written in C language and supports Vulkan, CUDA, HIP, OpenCL, Level Zero and Metal as backends.

## Check out my poster at SC22: https://sc22.supercomputing.org/presentation/?id=rpost143&sess=sess273

## Check out my panel at Nvidia's GTC 2021 in Higher Education and Research category: https://gtc21.event.nvidia.com/

## Python interface to VkFFT can be found here: https://github.com/vincefn/pyvkfft

## Rust bindings to VkFFT can be found here: https://github.com/semio-ai/vkfft-rs

## Benchmark results of VkFFT can be found here: https://openbenchmarking.org/test/pts/vkfft
## The white paper of VkFFT is out - if you use VkFFT and want to cite it: https://ieeexplore.ieee.org/document/10036080

## Currently supported features:
- 1D/2D/3D systems
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- VkFFT supports Vulkan, CUDA, HIP, OpenCL, Level Zero and Metal as backend to cover wide range of APIs
- Header-only library with Vulkan interface, which allows appending VkFFT directly to user's command buffer. Kernels are compiled at run-time
## Future release plan
- ##### Planned
- Publication based on implemented optimizations
- Test mobile GPUs (they should work)
- ##### Ambitious
- Multiple GPU job splitting

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For FP32, twiddle factors can be calculated on-the-fly in FP32 or precomputed in FP64/FP32. With FP32 twiddle factors (right) VkFFT is slightly less precise in Bluestein’s and Rader’s algorithms. If needed, this can be solved with FP64 precomputation.

## Check out my poster at SC22: https://sc22.supercomputing.org/presentation/?id=rpost143&sess=sess273

## Check out my panel at Nvidia's GTC 2021 in Higher Education and Research category: https://gtc21.event.nvidia.com/

## Python interface to VkFFT can be found here: https://github.com/vincefn/pyvkfft

## Rust bindings to VkFFT can be found here: https://github.com/semio-ai/vkfft-rs

## Benchmark results of VkFFT can be found here: https://openbenchmarking.org/test/pts/vkfft

## Contact information
The initial version of VkFFT is developed by Tolmachev Dmitrii\
E-mail 1: <[email protected]>

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