Requirements

Dependency	Version	Notes
C++ compiler	C++23	GCC 13+, Clang 17+, MSVC 19.38+
CMake	≥ 3.28
OpenMPI	≥ 4.0	Only for multiprocessing support
spdlog	any recent
fmt	any recent
Boost	any recent	Optional — examples and tests only (fetched automatically by CPM)
GoogleTest	any recent	Optional — running tests only (fetched automatically by CPM)

GemPBA uses CPM.cmake to fetch some dependencies automatically. BS_thread_pool, Boost, and GoogleTest are among them — no action needed for those.

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Installing dependencies

Ubuntu

sudo apt-get update
sudo apt-get install -y build-essential
sudo apt-get install -y cmake
sudo apt-get install -y libopenmpi-dev
sudo apt-get install -y libspdlog-dev
sudo apt-get install -y libfmt-dev

If you plan to build the examples or tests, also install Boost and GoogleTest:

sudo apt-get install -y libboost-all-dev
sudo apt-get install -y libgtest-dev
sudo apt-get install -y libgmock-dev

On Ubuntu, libgtest-dev ships the source only. You need to compile and install it before CMake can find it:

cd /usr/src/googletest
sudo cmake -S . -B build
sudo cmake --build build --target install

Windows (MSYS2 / MinGW64)

Open an MSYS2 MinGW64 shell and run:

pacman -Syu
pacman -S base-devel
pacman -S mingw-w64-x86_64-toolchain
pacman -S mingw-w64-x86_64-cmake
pacman -S mingw-w64-x86_64-make
pacman -S mingw-w64-x86_64-msmpi
pacman -S mingw-w64-x86_64-spdlog
pacman -S mingw-w64-x86_64-fmt

If you plan to build the examples or tests:

pacman -S mingw-w64-x86_64-boost
pacman -S mingw-w64-x86_64-gtest