hipCUB prerequisites

hipCUB has the following prerequisites on all platforms:

• CMake version 3.16 or higher

On AMD GPUs:

• ROCm

• amdclang++

• rocPRIM

amdclang++ is installed with ROCm. rocPRIM is automatically downloaded and installed by the CMake script.

On NVIDIA GPUs:

• The CUDA Toolkit

• CCCL library version 2.3.2 or later

• CUB and Thrust

• libcu++ version 2.2.0

The CCCL library is automatically downloaded and built by the CMake script. If libcu++ isn’t found on the system, it will be downloaded from the CCCL repository.

On Microsoft Windows:

• Python verion 3.6 or later

• Visual Studio 2019 with Clang support

• Strawberry Perl