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7a289d5418
Summary: This supersedes https://github.com/facebookresearch/faiss/issues/1390 and https://github.com/facebookresearch/faiss/issues/1141. Pull Request resolved: https://github.com/facebookresearch/faiss/pull/1678 Reviewed By: mdouze Differential Revision: D26428986 Pulled By: beauby fbshipit-source-id: 1e2718f457c1aca18c19edc2436d6baf9b627a60
100 lines
3.2 KiB
C++
100 lines
3.2 KiB
C++
/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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// Copyright 2004-present Facebook. All Rights Reserved.
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// -*- c++ -*-
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#include <faiss/IndexIVF.h>
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#include "Clustering_c.h"
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#include "Index_c.h"
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#include "IndexIVF_c.h"
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#include "macros_impl.h"
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using faiss::IndexIVF;
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using faiss::IndexIVFStats;
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DEFINE_DESTRUCTOR(IndexIVF)
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DEFINE_INDEX_DOWNCAST(IndexIVF)
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/// number of possible key values
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DEFINE_GETTER(IndexIVF, size_t, nlist)
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/// number of probes at query time
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DEFINE_GETTER(IndexIVF, size_t, nprobe)
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/// quantizer that maps vectors to inverted lists
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DEFINE_GETTER_PERMISSIVE(IndexIVF, FaissIndex*, quantizer)
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/**
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* = 0: use the quantizer as index in a kmeans training
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* = 1: just pass on the training set to the train() of the quantizer
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* = 2: kmeans training on a flat index + add the centroids to the quantizer
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*/
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DEFINE_GETTER(IndexIVF, char, quantizer_trains_alone)
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/// whether object owns the quantizer
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DEFINE_GETTER(IndexIVF, int, own_fields)
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using faiss::IndexIVF;
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int faiss_IndexIVF_merge_from(
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FaissIndexIVF* index, FaissIndexIVF* other, idx_t add_id) {
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try {
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reinterpret_cast<IndexIVF*>(index)->merge_from(
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*reinterpret_cast<IndexIVF*>(other), add_id);
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} CATCH_AND_HANDLE
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}
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int faiss_IndexIVF_copy_subset_to(
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const FaissIndexIVF* index, FaissIndexIVF* other, int subset_type, idx_t a1,
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idx_t a2) {
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try {
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reinterpret_cast<const IndexIVF*>(index)->copy_subset_to(
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*reinterpret_cast<IndexIVF*>(other), subset_type, a1, a2);
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} CATCH_AND_HANDLE
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}
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int faiss_IndexIVF_search_preassigned (const FaissIndexIVF* index,
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idx_t n, const float *x, idx_t k, const idx_t *assign,
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const float *centroid_dis, float *distances, idx_t *labels,
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int store_pairs) {
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try {
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reinterpret_cast<const IndexIVF*>(index)->search_preassigned(
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n, x, k, assign, centroid_dis, distances, labels, store_pairs);
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} CATCH_AND_HANDLE
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}
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size_t faiss_IndexIVF_get_list_size(const FaissIndexIVF* index, size_t list_no) {
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return reinterpret_cast<const IndexIVF*>(index)->get_list_size(list_no);
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}
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int faiss_IndexIVF_make_direct_map(FaissIndexIVF* index,
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int new_maintain_direct_map) {
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try {
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reinterpret_cast<IndexIVF*>(index)->make_direct_map(
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static_cast<bool>(new_maintain_direct_map));
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} CATCH_AND_HANDLE
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}
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double faiss_IndexIVF_imbalance_factor (const FaissIndexIVF* index) {
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return reinterpret_cast<const IndexIVF*>(index)->invlists->imbalance_factor();
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}
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/// display some stats about the inverted lists
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void faiss_IndexIVF_print_stats (const FaissIndexIVF* index) {
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reinterpret_cast<const IndexIVF*>(index)->invlists->print_stats();
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}
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/// get inverted lists ids
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void faiss_IndexIVF_invlists_get_ids (const FaissIndexIVF* index, size_t list_no, idx_t* invlist) {
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const idx_t* list = reinterpret_cast<const IndexIVF*>(index)->invlists->get_ids(list_no);
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size_t list_size = reinterpret_cast<const IndexIVF*>(index)->get_list_size(list_no);
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memcpy(invlist, list, list_size*sizeof(idx_t));
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}
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void faiss_IndexIVFStats_reset(FaissIndexIVFStats* stats) {
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reinterpret_cast<IndexIVFStats*>(stats)->reset();
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}
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