nszceta / cffi-numpy-demo

My CFFI with Numpy workflow

Just run test.py!

OpenMP as implemented is really slow (200x slower) than without probably due to thread contention. Do not use OpenMP as implemented!

Running (release mode)

python3 -O imgsample.py
python3 -O test_add_array_f.py
python3 -O test_add_array_i.py

Running (debug mode)

python3 imgsample.py
python3 test_add_array_f.py
python3 test_add_array_i.py

Running On Mac OS X with OpenMP:

--without-multilib is mandatory for building with OpenMP support https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60670

brew reinstall gcc --without-multilib
USE_OPENMP=true CC=gcc-5 python3 -O test_add_array_f.py
USE_OPENMP=true CC=gcc-5 python3 -O test_add_array_i.py