Matthijs Douze f351a83ef6 Update demo_imi_pq.cpp (#1636)
Summary:
remove long.
This is to close PR https://github.com/facebookresearch/faiss/issues/1050

Pull Request resolved: https://github.com/facebookresearch/faiss/pull/1636

Reviewed By: beauby

Differential Revision: D25994690

Pulled By: mdouze

fbshipit-source-id: 35dfa4295602f64053883594b5a7d0b9b7293545
2021-01-22 00:04:19 -08:00
..
2021-01-22 00:04:19 -08:00
2020-10-20 04:35:19 -07:00
2021-01-13 08:28:25 -08:00

Demos for a few Faiss functionalities

demo_auto_tune.py

Demonstrates the auto-tuning functionality of Faiss

demo_ondisk_ivf.py

Shows how to construct a Faiss index that stores the inverted file data on disk, eg. when it does not fit in RAM. The script works on a small dataset (sift1M) for demonstration and proceeds in stages:

0: train on the dataset

1-4: build 4 indexes, each containing 1/4 of the dataset. This can be done in parallel on several machines

5: merge the 4 indexes into one that is written directly to disk (needs not to fit in RAM)

6: load and test the index