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H4I-HipFFT

H4I-HipFFT is a library that provides HipFFT functionality for Intel GPUs. It's built on top of the H4I-MKLShim library and uses Intel's oneAPI MKL for FFT operations.

Prerequisites

• Intel oneAPI Base Toolkit
• H4I-MKLShim library (added here as a submodule)

Building

The best way to build this library is to build it as a part of chipStar.

• Add -DCHIP_BUILD_HIPFFT=ON during chipStar configure

Alternatively, this library can also be built using a pre-built chipStar

• Either set hip_DIR to chipStar install location or add a path to CMAKE_PREFIX_PATH e.x. :

hip_DIR=~/space/install/HIP/chipStar/2024.07.31 cmake ../

or

cmake ../ -DCMAKE_PREFIX_PATH=~/space/install/HIP/chipStar/2024.07.31/lib/cmake/hip