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c9c86f0daa
Summary:
**Bugs:**
When following rocksdb_ivf demo to build executable file, its output as:
```bash
faiss/demos/rocksdb_ivf/RocksDBInvertedLists.h:52:35: error: 'faiss::InvertedListsIterator* faiss_rocksdb::RocksDBInvertedLists::get_iterator(size_t) const' marked 'override', but does not override
52 | faiss::InvertedListsIterator* get_iterator(size_t list_no) const override;
| ^~~~~~~~~~~~
make[2]: *** [CMakeFiles/demo_rocksdb_ivf.dir/build.make:90: CMakeFiles/demo_rocksdb_ivf.dir/RocksDBInvertedLists.cpp.o] Error 1
```
**Solution:**
Add relevant variable `void* inverted_list_contex` corresponding `get_iterator`'s base virtual function.
Pull Request resolved: https://github.com/facebookresearch/faiss/pull/3326
Reviewed By: mlomeli1, mdouze
Differential Revision: D55629580
Pulled By: algoriddle
fbshipit-source-id: a12fcacb483e0dd576411ad91a3dd1e0de94abec
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