File GpuClonerOptions.h

namespace faiss

Copyright (c) Facebook, Inc. and its affiliates.

This source code is licensed under the MIT license found in the LICENSE file in the root directory of this source tree.

Throughout the library, vectors are provided as float * pointers. Most algorithms can be optimized when several vectors are processed (added/searched) together in a batch. In this case, they are passed in as a matrix. When n vectors of size d are provided as float * x, component j of vector i is

x[ i * d + j ]

where 0 <= i < n and 0 <= j < d. In other words, matrices are always compact. When specifying the size of the matrix, we call it an n*d matrix, which implies a row-major storage.

Copyright (c) Facebook, Inc. and its affiliates.

This source code is licensed under the MIT license found in the LICENSE file in the root directory of this source tree. I/O functions can read/write to a filename, a file handle or to an object that abstracts the medium.

The read functions return objects that should be deallocated with delete. All references within these objectes are owned by the object.

Copyright (c) Facebook, Inc. and its affiliates.

This source code is licensed under the MIT license found in the LICENSE file in the root directory of this source tree. Definition of inverted lists + a few common classes that implement the interface.

Copyright (c) Facebook, Inc. and its affiliates.

This source code is licensed under the MIT license found in the LICENSE file in the root directory of this source tree. Since IVF (inverted file) indexes are of so much use for large-scale use cases, we group a few functions related to them in this small library. Most functions work both on IndexIVFs and IndexIVFs embedded within an IndexPreTransform.

Copyright (c) Facebook, Inc. and its affiliates.

This source code is licensed under the MIT license found in the LICENSE file in the root directory of this source tree. In this file are the implementations of extra metrics beyond L2 and inner product

Copyright (c) Facebook, Inc. and its affiliates.

This source code is licensed under the MIT license found in the LICENSE file in the root directory of this source tree. Defines a few objects that apply transformations to a set of vectors Often these are pre-processing steps.

namespace gpu
struct GpuClonerOptions
#include <GpuClonerOptions.h>

set some options on how to copy to GPU

Subclassed by faiss::gpu::GpuMultipleClonerOptions, faiss::gpu::ToGpuCloner

Public Functions

GpuClonerOptions()

Public Members

IndicesOptions indicesOptions

how should indices be stored on index types that support indices (anything but GpuIndexFlat*)?

bool useFloat16CoarseQuantizer

is the coarse quantizer in float16?

bool useFloat16

for GpuIndexIVFFlat, is storage in float16? for GpuIndexIVFPQ, are intermediate calculations in float16?

bool usePrecomputed

use precomputed tables?

long reserveVecs

reserve vectors in the invfiles?

bool storeTransposed

For GpuIndexFlat, store data in transposed layout?

bool verbose

Set verbose options on the index.

struct GpuMultipleClonerOptions : public faiss::gpu::GpuClonerOptions

Subclassed by faiss::gpu::ToGpuClonerMultiple

Public Functions

GpuMultipleClonerOptions()

Public Members

bool shard

Whether to shard the index across GPUs, versus replication across GPUs

int shard_type

IndexIVF::copy_subset_to subset type.

IndicesOptions indicesOptions

how should indices be stored on index types that support indices (anything but GpuIndexFlat*)?

bool useFloat16CoarseQuantizer

is the coarse quantizer in float16?

bool useFloat16

for GpuIndexIVFFlat, is storage in float16? for GpuIndexIVFPQ, are intermediate calculations in float16?

bool usePrecomputed

use precomputed tables?

long reserveVecs

reserve vectors in the invfiles?

bool storeTransposed

For GpuIndexFlat, store data in transposed layout?

bool verbose

Set verbose options on the index.