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Installation on Mac OS X

Ray must currently be built from source. We have tested Ray on OS X 10.11.

Clone the Ray repository

git clone https://github.com/ray-project/ray.git

Dependencies

First install the dependencies using brew. We currently do not support Python 3. If you have trouble installing the Python packages, you may find it easier to install Anaconda.

brew update
brew install git cmake automake autoconf libtool boost graphviz
sudo easy_install pip
sudo pip install ipython --user
sudo pip install numpy funcsigs subprocess32 protobuf colorama graphviz --ignore-installed six
sudo pip install --upgrade git+git://github.com/cloudpipe/cloudpickle.git@0d225a4695f1f65ae1cbb2e0bbc145e10167cce4  # We use the latest version of cloudpickle because it can serialize named tuples.

Build

Then run the setup scripts.

cd ray
./setup.sh # Build all necessary third party libraries (e.g., gRPC and Apache Arrow). This may take about 10 minutes.
./build.sh # Build Ray.
source setup-env.sh # Add Ray to your Python path.

For convenience, you may also want to add the line source "$RAY_ROOT/setup-env.sh" to the bottom of your ~/.bashrc file manually, where $RAY_ROOT is the Ray directory (e.g., /home/ubuntu/ray).

Test if the installation succeeded

To test if the installation was successful, try running some tests.

python test/runtest.py # This tests basic functionality.
python test/array_test.py # This tests some array libraries.