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faiss::gpu::GpuIndex Class Referenceabstract
Inheritance diagram for faiss::gpu::GpuIndex:
faiss::Index faiss::gpu::GpuIndexFlat faiss::gpu::GpuIndexIVF faiss::gpu::GpuIndexFlatIP faiss::gpu::GpuIndexFlatL2 faiss::gpu::GpuIndexIVFFlat faiss::gpu::GpuIndexIVFPQ

Public Member Functions

 GpuIndex (GpuResources *resources, int dims, faiss::MetricType metric, GpuIndexConfig config)
 
int getDevice () const
 
GpuResourcesgetResources ()
 
void add (faiss::Index::idx_t, const float *x) override
 
void add_with_ids (Index::idx_t n, const float *x, const Index::idx_t *ids) override
 
void search (faiss::Index::idx_t n, const float *x, faiss::Index::idx_t k, float *distances, faiss::Index::idx_t *labels) const override
 
- Public Member Functions inherited from faiss::Index
 Index (idx_t d=0, MetricType metric=METRIC_INNER_PRODUCT)
 
virtual void train (idx_t, const float *)
 
virtual void range_search (idx_t n, const float *x, float radius, RangeSearchResult *result) const
 
void assign (idx_t n, const float *x, idx_t *labels, idx_t k=1)
 
virtual void reset ()=0
 removes all elements from the database.
 
virtual long remove_ids (const IDSelector &sel)
 
virtual void reconstruct (idx_t key, float *recons) const
 
virtual void reconstruct_n (idx_t i0, idx_t ni, float *recons) const
 
void compute_residual (const float *x, float *residual, idx_t key) const
 
void display () const
 

Protected Member Functions

void addInternal_ (Index::idx_t n, const float *x, const Index::idx_t *ids)
 
virtual void addImpl_ (Index::idx_t n, const float *x, const Index::idx_t *ids)=0
 Overridden to actually perform the add.
 
virtual void searchImpl_ (faiss::Index::idx_t n, const float *x, faiss::Index::idx_t k, float *distances, faiss::Index::idx_t *labels) const =0
 Overridden to actually perform the search.
 

Protected Attributes

GpuResourcesresources_
 Manages streans, cuBLAS handles and scratch memory for devices.
 
const int device_
 The GPU device we are resident on.
 
const MemorySpace memorySpace_
 The memory space of our primary storage on the GPU.
 

Additional Inherited Members

- Public Types inherited from faiss::Index
typedef long idx_t
 all indices are this type
 
- Public Attributes inherited from faiss::Index
int d
 vector dimension
 
idx_t ntotal
 total nb of indexed vectors
 
bool verbose
 verbosity level
 
bool is_trained
 set if the Index does not require training, or if training is done already
 
MetricType metric_type
 type of metric this index uses for search
 

Detailed Description

Definition at line 35 of file GpuIndex.h.

Member Function Documentation

void faiss::gpu::GpuIndex::add ( faiss::Index::idx_t  n,
const float *  x 
)
overridevirtual

x can be resident on the CPU or any GPU; copies are performed as needed Handles paged adds if the add set is too large; calls addInternal_

Implements faiss::Index.

Reimplemented in faiss::gpu::GpuIndexFlat, and faiss::gpu::GpuIndexIVF.

Definition at line 61 of file GpuIndex.cu.

void faiss::gpu::GpuIndex::add_with_ids ( Index::idx_t  n,
const float *  x,
const Index::idx_t ids 
)
overridevirtual

x and ids can be resident on the CPU or any GPU; copies are performed as needed Handles paged adds if the add set is too large; calls addInternal_

Reimplemented from faiss::Index.

Definition at line 66 of file GpuIndex.cu.

void faiss::gpu::GpuIndex::addInternal_ ( Index::idx_t  n,
const float *  x,
const Index::idx_t ids 
)
protected

Handles paged adds if the add set is too large, passes to addImpl_ to actually perform the add for the current page

Definition at line 73 of file GpuIndex.cu.

void faiss::gpu::GpuIndex::search ( faiss::Index::idx_t  n,
const float *  x,
faiss::Index::idx_t  k,
float *  distances,
faiss::Index::idx_t labels 
) const
overridevirtual

x, distances and labels can be resident on the CPU or any GPU; copies are performed as needed

Implements faiss::Index.

Reimplemented in faiss::gpu::GpuIndexFlat.

Definition at line 108 of file GpuIndex.cu.


The documentation for this class was generated from the following files: