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)