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faiss::gpu::GpuIndexIVF Class Reference
Inheritance diagram for faiss::gpu::GpuIndexIVF:

## Public Member Functions

| GpuIndexIVF (GpuResources *resources, int dims, faiss::MetricType metric, int nlist, GpuIndexIVFConfig config=GpuIndexIVFConfig())
void | copyFrom (const faiss::IndexIVF *index)
| Copy what we need from the CPU equivalent.
void | copyTo (faiss::IndexIVF *index) const
| Copy what we have to the CPU equivalent.
int | getNumLists () const
| Returns the number of inverted lists we're managing.
GpuIndexFlat * | getQuantizer ()
| Return the quantizer we're using.
void | setNumProbes (int nprobe)
| Sets the number of list probes per query.
int | getNumProbes () const
| Returns our current number of list probes per query.
void | add (Index::idx_t n, const float *x) override
Public Member Functions inherited from faiss::gpu::GpuIndex
| GpuIndex (GpuResources *resources, int dims, faiss::MetricType metric, GpuIndexConfig config)
int | getDevice () const
GpuResources * | getResources ()
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_L2)
virtual void | train (idx_t n, const float *x)
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
virtual void | search_and_reconstruct (idx_t n, const float *x, idx_t k, float *distances, idx_t *labels, float *recons) const
void | compute_residual (const float *x, float *residual, idx_t key) const
void | display () const

## Public Attributes

ClusteringParameters | cp
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

## Protected Member Functions

void | trainQuantizer_ (faiss::Index::idx_t n, const float *x)
Protected Member Functions inherited from faiss::gpu::GpuIndex
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

GpuIndexIVFConfig | ivfConfig_
int | nlist_
| Number of inverted lists that we manage.
int | nprobe_
| Number of inverted list probes per query.
GpuIndexFlat * | quantizer_
| Quantizer for inverted lists.
Protected Attributes inherited from faiss::gpu::GpuIndex
GpuResources * | resources_
| 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

## Detailed Description

Definition at line 37 of file GpuIndexIVF.h.

## Member Function Documentation

void faiss::gpu::GpuIndexIVF::add | ( | Index::idx_t | n,
|  | const float * | x
| ) |  |

overridevirtual

`x` can be resident on the CPU or any GPU; the proper copies are performed Forwards to add_with_ids; assigns IDs as needed FIXME: remove override for C++03 compatibility

Reimplemented from faiss::gpu::GpuIndex.

Definition at line 216 of file GpuIndexIVF.cu.

## Member Data Documentation

ClusteringParameters faiss::gpu::GpuIndexIVF::cp

Exposed as IndexIVF does to allow overriding clustering parameters

Definition at line 82 of file GpuIndexIVF.h.

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

- /data/users/matthijs/github_faiss/faiss/gpu/GpuIndexIVF.h
- /data/users/matthijs/github_faiss/faiss/gpu/GpuIndexIVF.cu