Install software on OS X, using Homebrew for binary packages.
On OS X the build process is very similar to Ubuntu. To avoid building
the whole stack from source we can likewise use another package manager to provide precompiled binaries.
To that end we have successfully used Homebrew. We also provide a skeleton
packages.yaml that you should review and adapt to your needs.
Before starting, please install brew and the required packages. If you require Python please install a version dowloaded from Python.org, as several issues have been found with Homebrew's Python
$ git clone https://github.com/BlueBrain/spack.git
$ mkdir ~/.spack
$ cp spack/sysconfig/mac_osx/*.yaml ~/.spack
$ . spack/share/spack/setup-env.sh
$ spack compiler find
Use Spack on the workstations provided by the project.
We build Docker images based on Ubuntu 18.04, and the same settings can be used to set Spack up on the desktops:
$ git clone https://github.com/BlueBrain/spack.git
$ mkdir ~/.spack
$ cp spack/sysconfig/ubuntu-18.04/*.yaml ~/.spack
$ sed -e 's/#.*//g' spack/sysconfig/ubuntu-18.04/packages|xargs -r sudo apt-get install --assume-yes
$ . spack/share/spack/setup-env.sh
$ spack compiler find
$ git clone https://github.com/BlueBrain/spack.git
$ mkdir ~/.spack
$ cp spack/sysconfig/ubuntu-20.04/*.yaml ~/.spack
$ sed -e 's/#.*//g' spack/sysconfig/ubuntu-20.04/packages|xargs -r sudo apt-get install --assume-yes
$ . spack/share/spack/setup-env.sh
$ spack compiler find
Since Ubuntu 20.04 dropped Python 2 support, we need to set Python 3 as the
default python:
$ sudo update-alternatives --install /usr/bin/python python /usr/bin/python3.8 1
To check that we are using Python 3 as python:
$ sudo update-alternatives --config python
There is only one alternative in link group python
(providing /usr/bin/python): /usr/bin/python3.8. Nothing to configure.