mpi world comm audit and fixes #500

	name: build_ascent_cuda

	on:
	pull_request:
	branches: [ develop ]

	jobs:
	build_cuda:
	name: Build Ascent CUDA
	runs-on: ubuntu-latest
	container: alpinedav/ascent-ci:ubuntu-22.04-cuda-11.8.0-devel
	env:
	CMAKE_VERSION: 3.23.3
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	with:
	submodules: 'recursive'
	- name: Install CMake
	run: \|
	curl -L https://github.com/Kitware/CMake/releases/download/v${CMAKE_VERSION}/cmake-${CMAKE_VERSION}-linux-x86_64.tar.gz -o cmake-${CMAKE_VERSION}-linux-x86_64.tar.gz
	tar -xzf cmake-${CMAKE_VERSION}-linux-x86_64.tar.gz
	cmake-${CMAKE_VERSION}-linux-x86_64/bin/cmake --version
	- name: Build TPLs
	run: \|
	export PATH=$PATH:cmake-${CMAKE_VERSION}-linux-x86_64/bin/
	env enable_cuda=ON \
	enable_mpi=OFF \
	enable_fortran=OFF \
	enable_tests=OFF \
	build_ascent=OFF \
	enable_verbose=OFF \
	build_jobs=2 \
	./scripts/build_ascent/build_ascent.sh
	- name: Configure Ascent
	run: \|
	export PATH=$PATH:cmake-${CMAKE_VERSION}-linux-x86_64/bin/
	cmake --version
	echo "**** Configuring Ascent"
	cmake -S src -B build -C ascent-config.cmake -DCMAKE_INSTALL_PREFIX=install
	- name: Build Ascent
	run: \|
	export PATH=$PATH:cmake-${CMAKE_VERSION}-linux-x86_64/bin/
	echo "**** Building Ascent"
	cmake --build build -j2 --config Release
	- name: Install Ascent
	run: \|
	export PATH=$PATH:cmake-${CMAKE_VERSION}-linux-x86_64/bin/
	echo "**** Installing Ascent"
	cmake --install build --config Release

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