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MacOS

Prerequisites for Arkouda can be installed using Homebrew or manually.

Clone Arkouda Repository

Download, clone, or fork the arkouda repo.

We encourage developers to fork the repo if they expect to make any changes to arkouda. They can then clone their fork and add the Bears-R-Us repo as a remote:

git clone https://github.com/YOUR_FORK/arkouda.git
cd arkouda
git remote add upstream https://github.com/Bears-R-Us/arkouda.git

For users who aren't intending to make any changes, cloning the arkouda repo should be enough

git clone https://github.com/Bears-R-Us/arkouda.git

Further instructions assume that the current directory is the top-level directory of the arkouda repo.

Python Environment - Anaconda

Arkouda provides 2 .yml files for configuration, one for users and one for developers. The .yml files are configured with a default name for the environment, which is used in the example interactions with conda below. To provide a different name for the environment, use the -n or --name parameters when calling conda env create.

# We recommend running the full Anaconda 
brew install --cask anaconda

# Note - the exact path may vary based on the most current release of Anaconda and your mac's chipset
# Run the script to install Anaconda.
/opt/homebrew/Caskroom/anaconda/2022.10/Anaconda3-2022.10-MacOSX-arm64.sh

# initialize conda
conda init

# User conda env
conda env create -f arkouda-env.yml
conda activate arkouda

# Developer conda env
conda env create -f arkouda-env-dev.yml
conda activate arkouda-dev

# Install the Arkouda Client Package and add it to your PYTHONPATH.
# For this to work properly you need to change directories to where arkouda lives
pip install -e . --no-deps
export PYTHONPATH="${PYTHONPATH}:${PWD}"

Updating Environment

As Arkouda progresses through its life-cycle, dependencies may change. As a result, it is recommended that you keep your development environment in sync with the latest dependencies. The instructions vary depending upon you preferred environment management tool.

Anaconda

If you provided a different name when creating the environment, replace arkouda-dev or arkouda with the name of your Conda environment.

# developer environment update
conda env update -n arkouda-dev -f arkouda-env-dev.yml

# user environment update
conda env update -n arkouda -f arkouda-env.yml

Install Chapel

It is recommended to compile Chapel from source. Alternatively, it can be installed via Homebrew.

Build from Source (Recommended)

For convenience, the steps to install Chapel from source are detailed here. If you need more information, please visit the Chapel Quickstart Guide.

Step 1

Navigate to the directory where you want Chapel to be installed. You should not install Chapel in the arkouda directory

Step 2

Download the current version of Chapel from here.

Step 3

Unpack the release

tar xzf chapel-2.1.0.tar.gz

Step 4

Access the directory created when the release was unpacked

cd chapel-2.1.0

Step 5

Configure environment variables. Please Note: This command assumes the use of bash or zsh. Please refer to the Chapel Documentation if you are using another shell.

source util/quickstart/setchplenv.bash

Step 6

Update environment variables to the recommended settings.

brew install llvm
export CHPL_LLVM=system

brew install gmp
export CHPL_GMP=system

export CHPL_RE2=bundled

unset CHPL_DEVELOPER

If you choose to use the packages bundled with Chapel, use the following settings.

export CHPL_GMP=bundled
export CHPL_LLVM=bundled
export CHPL_RE2=bundled

Step 7

Add the following to your rc file.

# update paths to reflect where chapel and arkouda live on your machine
export CHPL_HOME=/Users/USER/PATH_TO_CHPL/chapel-2.1.0
# your binary might differ especially if you have a different chipset
export PATH=$PATH:$CHPL_HOME/bin/darwin-arm64
source ${CHPL_HOME}/util/setchplenv.bash
export CHPL_LLVM=system # set to the same value as in the previous step
export CHPL_GMP=system # set to the same value as in the previous step
export CHPL_RE2=bundled
export CHPL_COMM=none
export CHPL_TARGET_CPU=native
export ARKOUDA_QUICK_COMPILE=true
export PYTHONPATH="${PYTHONPATH}:/Users/USER/PATH_TO_ARK/arkouda"

Step 8

Source your rc file to set any environment variables, you might need to reactivate your conda environment

source ~/.zshrc # or ~/.bashrc depending on your shell
conda activate arkouda-dev # or the name of your conda environment

Step 9

Use make to build Chapel

make -j 8  # you can bump this up 16 if you have enough memory

Step 10

Ensure that Chapel was built successfully

chpl examples/hello3-datapar.chpl
./hello3-datapar

Homebrew

Alternatively, you can use homebrew to install Chapel and all it's supporting dependencies.

brew install chapel

Next Steps

We've installed Arkouda and its dependencies and built chapel with reasonable default environment variables.

Now you are ready to build the server! Follow the build instructions at BUILD.md.

We've set up chapel and arkouda to run locally with no communication! If you want to simulate running on a distributed machine follow the instructions at GASNet Development.