Lecrapouille / Janus

An n-body type simulation using GPU acceleration to simulate galaxies, galaxy collisions and expanding universes.

Janus

Project based on Angel Uriot's Galaxy_simulation in which we add negative masses and apply either Newton (m gamma = mM/d^2) or anti-Newton law (|m| gamma = mM/d^2).

Compilation Linux

sudo apt-get install pkg-config ocl-icd-opencl-dev opencl-clhpp-headers libsfml-dev libglm-dev libglew-dev libglfw3-dev libdw-dev
w

git clone https://github.com/Lecrapouille/Janus.git --recursive
cd Janus
make download-external-libs
make -j`nproc --all`

./build/Janus

Probable issue: depending on if you are on Ubuntu 20 or 22 or Debian 11 ... you may have to change the OpenCL header in libraries.hpp. Chooise between: #include <CL/opencl.hpp> and #include <CL/cl2.hpp>.

Compilation Mac OS X

brew install pkg-config opencl-icd-loader opencl-headers opencl-clhpp-headers sfml glm glew glfw

export PKG_CONFIG_PATH="/usr/local/opt/opencl-icd-loader/lib/pkgconfig:$PKG_CONFIG_PATH"
export PKG_CONFIG_PATH="/usr/local/opt/opencl-headers/share/pkgconfig:$PKG_CONFIG_PATH"
export PKG_CONFIG_PATH="/usr/local/opt/opencl-clhpp-headers/share/pkgconfig:$PKG_CONFIG_PATH"

git clone https://github.com/Lecrapouille/Janus.git --recursive
cd Janus
make download-external-libs
make -j`sysctl -n hw.logicalcpu`

./build/Janus