N2

stable

Class HnswModel¶

Defined in File hnsw_model.h

Class Documentation¶

class n2::HnswModel¶

Public Functions

~HnswModel()¶

bool SaveModelToFile(const std::string &fname) const¶

HnswModel(const HnswModel&) = delete¶

void operator=(const HnswModel&) = delete¶

int GetNumNodes() const¶

int GetEnterpointId() const¶

int GetMaxLevel() const¶

int GetDataDim() const¶

DistanceKind GetMetric() const¶

const float *GetData(int node_id) const¶

const int *GetHigherLevelFriendsWithSize(int node_id, int level) const¶

const int *GetLevel0FriendsWithSize(int node_id) const¶

Public Members

int enterpoint_id_¶

int num_nodes_¶

int max_level_¶

size_t data_dim_ = 0¶

DistanceKind metric_¶

char *model_ = nullptr¶

uint64_t model_byte_size_¶

char *model_higher_level_ = nullptr¶

char *model_level0_ = nullptr¶

char *model_level0_node_base_offset_ = nullptr¶

uint64_t memory_per_data_¶

uint64_t memory_per_link_level0_¶

uint64_t memory_per_node_level0_¶

uint64_t memory_per_node_higher_level_¶

Mmap *model_mmap_ = nullptr¶

Public Static Functions

std::shared_ptr<const HnswModel> GenerateModel(const std::vector<HnswNode*> nodes, int enterpoint_id, int max_m, int max_m0, DistanceKind metric, int max_level, size_t data_dim)¶

std::shared_ptr<const HnswModel> LoadModelFromFile(const std::string &fname, const bool use_mmap = true)¶