Mac OS X Install Notes¶
Apple’s implementation of BLAS does not support using BLAS calls on both sides of a fork.
The upshot of this is that you can’t do parallel processing with numpy (which uses BLAS).
One way to get around this is to compile NumPy against a different implementation of BLAS such as OpenBLAS. Here’s how you might go about that:
Install OpenBlas with Homebrew Science¶
You can install OpenBlas from with Homebrew Science.
$ brew install homebrew/science/openblas
Clone and build NumPy¶
$ git clone git://github.com/numpy/numpy.git numpy
$ cd numpy
$ pip uninstall numpy (if it is already installed)
$ cp site.cfg.example site.cfg
Edit site.cfg and uncomment/update the code to match below:
[DEFAULT]
library_dirs = /usr/local/opt/openblas/lib
include_dirs = /usr/local/opt/openblas/include
[atlas]
atlas_libs = openblas
libraries = openblas
[openblas]
libraries = openblas
library_dirs = /usr/local/opt/openblas/lib
include_dirs = /usr/local/opt/openblas/include
You may need to change the library_dirs
and include_dirs
paths
to match where you installed OpenBlas (see
http://stackoverflow.com/a/14391693/1907889 for details).
Then install with:
python setup.py build && python setup.py install
Then reinstall Dedupe:
pip uninstall Dedupe
python setup.py install