* Add C API

* Add installation instructions for the C API

- support on-disk IVF

* Add shared lib target for GPU version.

* Dynamically link tutorial examples.

* Add shared lib to clean target in GPU Makefile.

* Add clean target to tutorial examples Makefile.

* Minor modifications to tutorial GPU examples.

Update Getting started tutorial link.

* Remove transitional print import.

* Add example for multiple GPUs in python.

* Add example on GPU in C++.

* Add example on multiple GPUs in C++.

* Add IVFFlat example on GPU in python.

* Add Makefile for C++ tutorial examples.

* Add IVF index on GPU example in C++.

Add template for issues.

ok

- adding HNSW indexing method

- simultaneous search and reconstruction for IndexIVFPQ

- adding HNSW indexing method

- simultaneous search and reconstruction for IndexIVFPQ

- adding HNSW indexing method

- simultaneous search and reconstruction for IndexIVFPQ

just fixed a typo

various bugfixes from github issues
kmean with some frozen centroids
GPU better tiling for large flat datasets
default AVX for vector ops

various bugfixes from github issues
kmean with some frozen centroids
GPU better tiling for large flat datasets
default AVX for vector ops

various bugfixes from github issues
kmean with some frozen centroids
GPU better tiling for large flat datasets
default AVX for vector ops

* fixes for homebrew and anaconda python

* remove #/bin/bash

* PR feedback and handle different versions of LLVM