Script to build pocl and pyopencl from source

build-pocl.sh

#!/bin/bash

set -o errexit

pushd .

### Conda

MINIFORGE_INSTALL_PREFIX=$PWD/miniforge3

rm -f Miniforge3-Linux-ppc64le.sh
rm -rf $MINIFORGE_INSTALL_PREFIX

wget https://github.com/conda-forge/miniforge/releases/latest/download/Miniforge3-Linux-ppc64le.sh

bash Miniforge3-Linux-ppc64le.sh -b -p $MINIFORGE_INSTALL_PREFIX

source $MINIFORGE_INSTALL_PREFIX/bin/activate

conda update --all --yes

conda create --yes --name poclbuild

conda activate poclbuild

conda install --yes clang clangxx clangdev gxx_impl_linux-ppc64le libhwloc=1 cmake ocl-icd pybind11 mako


### Pocl

set -o nounset

echo CUDA_HOME=$CUDA_HOME

rm -rf pocl

git clone github.com:pocl/pocl

cd pocl

export POCL_INSTALL_PREFIX=$PWD/install
export CPATH=$MINIFORGE_INSTALL_PREFIX/envs/poclbuild/include
export LIBRARY_PATH=$MINIFORGE_INSTALL_PREFIX/envs/poclbuild/lib:$CUDA_HOME/lib64/stubs:/usr/lib/x86_64-linux-gnu/

mkdir build
cd build

CC=clang CXX=clang++ cmake ..                                                    \
  -DENABLE_CUDA=on                                                               \
  -DENABLE_ICD=on                                                                \
  -DCMAKE_BUILD_TYPE="RelWithDebugInfo"                                          \
  -DCMAKE_INSTALL_PREFIX=$POCL_INSTALL_PREFIX                                    \
  -DOPENCL_LIBRARIES=$MINIFORGE_INSTALL_PREFIX/envs/poclbuild/lib/libOpenCL.so   \
  -DCLANG_MARCH_FLAG="-mcpu="

make -j8
make install


### Pyopencl

popd

rm -rf pyopencl

# N.B. Make sure to load a recent gcc module (>7)

git clone --recursive git@github.com:inducer/pyopencl

cd pyopencl

./configure.py --cl-inc-dir=$MINIFORGE_INSTALL_PREFIX/envs/poclbuild/include --cl-lib-dir=$POCL_INSTALL_PREFIX/lib --cl-libname=OpenCL

python setup.py install

export OCL_ICD_VENDORS=$POCL_INSTALL_PREFIX/etc/OpenCL/vendors/:$OCL_ICD_VENDORS

Thank you @ZwFink!