The Faiss installation works in 3 steps, from easiest to most
Install via Conda
-----------------
The easiest way to install FAISS is from anaconda. We regularly push stable releases to conda channel. FAISS conda package depends on mkl package shipped in conda.
You can easily install it by
```
# CPU version only
conda install faiss-cpu -c pytorch
# GPU version requires CUDA to be installed, otherwise it falls back to CPU version
conda install faiss-gpu -c pytorch
```
Compile from source
-------------------
The Faiss compilation works in 3 steps, from easiest to most