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Faiss
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Faiss
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#include <GpuIndexFlat.h>
Public Member Functions | |
| GpuIndexFlatL2 (GpuResources *resources, faiss::IndexFlatL2 *index, GpuIndexFlatConfig config=GpuIndexFlatConfig()) | |
| GpuIndexFlatL2 (GpuResources *resources, int dims, GpuIndexFlatConfig config=GpuIndexFlatConfig()) | |
| Construct an empty instance that can be added to. | |
| void | copyFrom (faiss::IndexFlatL2 *index) |
| void | copyTo (faiss::IndexFlatL2 *index) |
 Public Member Functions inherited from faiss::gpu::GpuIndexFlat | |
| GpuIndexFlat (GpuResources *resources, const faiss::IndexFlat *index, GpuIndexFlatConfig config=GpuIndexFlatConfig()) | |
| GpuIndexFlat (GpuResources *resources, int dims, faiss::MetricType metric, GpuIndexFlatConfig config=GpuIndexFlatConfig()) | |
| Construct an empty instance that can be added to. | |
| void | setMinPagingSize (size_t size) |
| size_t | getMinPagingSize () const |
| Returns the current minimum data size for paged searches. | |
| void | copyFrom (const faiss::IndexFlat *index) |
| void | copyTo (faiss::IndexFlat *index) const |
| size_t | getNumVecs () const |
| Returns the number of vectors we contain. | |
| void | reset () override |
| Clears all vectors from this index. | |
| void | train (Index::idx_t n, const float *x) override |
| This index is not trained, so this does nothing. | |
| void | add (faiss::Index::idx_t, const float *x) override |
| Overrides to avoid excessive copies. | |
| void | search (faiss::Index::idx_t n, const float *x, faiss::Index::idx_t k, float *distances, faiss::Index::idx_t *labels) const override |
| void | reconstruct (faiss::Index::idx_t key, float *out) const override |
| void | reconstruct_n (faiss::Index::idx_t i0, faiss::Index::idx_t num, float *out) const override |
| Batch reconstruction method. | |
| FlatIndex * | getGpuData () |
| For internal access. | |
| 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 |
| Public Member Functions inherited from faiss::Index | |
| Index (idx_t d=0, MetricType metric=METRIC_INNER_PRODUCT) | |
| 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 long | remove_ids (const IDSelector &sel) |
| void | compute_residual (const float *x, float *residual, idx_t key) const |
| void | display () const |
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 | |
| Protected Member Functions inherited from faiss::gpu::GpuIndexFlat | |
| void | addImpl_ (faiss::Index::idx_t n, const float *x, const faiss::Index::idx_t *ids) override |
| Called from GpuIndex for add. | |
| void | searchImpl_ (faiss::Index::idx_t n, const float *x, faiss::Index::idx_t k, float *distances, faiss::Index::idx_t *labels) const override |
| Should not be called (we have our own implementation) | |
| void | searchFromCpuPaged_ (int n, const float *x, int k, float *outDistancesData, int *outIndicesData) const |
| void | searchNonPaged_ (int n, const float *x, int k, float *outDistancesData, int *outIndicesData) const |
| Protected Member Functions inherited from faiss::gpu::GpuIndex | |
| void | addInternal_ (Index::idx_t n, const float *x, const Index::idx_t *ids) |
| Protected Attributes inherited from faiss::gpu::GpuIndexFlat | |
| const GpuIndexFlatConfig | config_ |
| Our config object. | |
| size_t | minPagedSize_ |
| Size above which we page copies from the CPU to GPU. | |
| FlatIndex * | data_ |
| Holds our GPU data containing the list of vectors. | |
| 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. | |
Wrapper around the GPU implementation that looks like faiss::IndexFlatL2; copies over centroid data from a given faiss::IndexFlat
Definition at line 169 of file GpuIndexFlat.h.
| faiss::gpu::GpuIndexFlatL2::GpuIndexFlatL2 | ( | GpuResources * | resources, |
| faiss::IndexFlatL2 * | index, | ||
| GpuIndexFlatConfig | config = GpuIndexFlatConfig() |
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| ) |
Construct from a pre-existing faiss::IndexFlatL2 instance, copying data over to the given GPU
Definition at line 549 of file GpuIndexFlat.cu.
| void faiss::gpu::GpuIndexFlatL2::copyFrom | ( | faiss::IndexFlatL2 * | index | ) |
Initialize ourselves from the given CPU index; will overwrite all data in ourselves
Definition at line 562 of file GpuIndexFlat.cu.
| void faiss::gpu::GpuIndexFlatL2::copyTo | ( | faiss::IndexFlatL2 * | index | ) |
Copy ourselves to the given CPU index; will overwrite all data in the index instance
Definition at line 567 of file GpuIndexFlat.cu.
1.8.5
