Struct faiss::gpu::ToGpuClonerMultiple¶

struct ToGpuClonerMultiple : public faiss::Cloner, public faiss::gpu::GpuMultipleClonerOptions

Cloner specialized for CPU -> multiple GPUs.

Public Functions

ToGpuClonerMultiple(std::vector<GpuResourcesProvider*> &provider, std::vector<int> &devices, const GpuMultipleClonerOptions &options)

ToGpuClonerMultiple(const std::vector<ToGpuCloner> &sub_cloners, const GpuMultipleClonerOptions &options)

void copy_ivf_shard(const IndexIVF *index_ivf, IndexIVF *idx2, long n, long i)

Index *clone_Index_to_shards(const Index *index)

virtual Index *clone_Index(const Index *index) override: main function

virtual VectorTransform *clone_VectorTransform(const VectorTransform*)

virtual IndexIVF *clone_IndexIVF(const IndexIVF*)

Public Members

std::vector<ToGpuCloner> sub_cloners

bool shard = false: Whether to shard the index across GPUs, versus replication across GPUs

int shard_type = 1: IndexIVF::copy_subset_to subset type.

IndicesOptions indicesOptions = INDICES_64_BIT: how should indices be stored on index types that support indices (anything but GpuIndexFlat*)?

bool useFloat16CoarseQuantizer = false: is the coarse quantizer in float16?

bool useFloat16 = false: for GpuIndexIVFFlat, is storage in float16? for GpuIndexIVFPQ, are intermediate calculations in float16?

bool usePrecomputed = false: use precomputed tables?

long reserveVecs = 0: reserve vectors in the invfiles?

bool storeTransposed = false: For GpuIndexFlat, store data in transposed layout?

bool verbose = false: Set verbose options on the index.