Install instructions for ISCE2 on an Apple Silicon Mac

ISCE2_apple_silicon_install.md

ISCE2 Apple Silicon Install

An Apple Silicon ISCE2 install can be done, but it is a bit tricky. In short, the key is to:

Install ISCE2 via conda/mamba within an osx-64 environment

The osx-64 component is key because as of late 2024, ISCE2 does not distribute an arm-based build via condaforge.

Note that ISCE2 may be slower than you expect because it has to run via the Rosetta 2 translation tool.

Step 1: Install miniforge

curl -L -O "https://github.com/conda-forge/miniforge/releases/latest/download/Miniforge3-$(uname)-$(uname -m).sh"
bash Miniforge3-$(uname)-$(uname -m).sh

Step 2: Create an osx-64 conda environment

Make sure to swap YOUR_ENV_NAME_HERE with the name of the environment you want

export CENV_NAME=YOUR_ENV_NAME_HERE
export CONDA_SUBDIR=osx-64
export OSX_SDK_DIR=/Library/Developer/CommandLineTools/SDKs
conda create -y -n $CENV_NAME
conda activate $CENV_NAME
conda config --env --set subdir osx-64

Step 3: Install ISCE2

You can either install ISCE2 directly:

mamba install -c conda-forge isce2

Or as part of an environment file (note the use of update instead of install):

mamba env update --name $CENV_NAME -f environment.yml