Initial commit

packages/leann-backend-hnsw/third_party/faiss/demos/rocksdb_ivf/README.md

@@ -0,0 +1,23 @@
+# Storing Faiss inverted lists in RocksDB
+
+Demo of storing the inverted lists of any IVF index in RocksDB or any similar key-value store which supports the prefix scan operation.
+
+# How to build
+
+We use conda to create the build environment for simplicity. Only tested on Linux x86.
+
+```
+conda create -n rocksdb_ivf
+conda activate rocksdb_ivf
+conda install pytorch::faiss-cpu conda-forge::rocksdb cmake make gxx_linux-64 sysroot_linux-64
+cd ~/faiss/demos/rocksdb_ivf
+cmake -B build .
+make -C build -j$(nproc)
+```
+
+# Run the example
+
+```
+cd ~/faiss/demos/rocksdb_ivf/build
+./rocksdb_ivf test_db
+```