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GpuIndicesOptions.h
/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the CC-by-NC license found in the
* LICENSE file in the root directory of this source tree.
*/
// Copyright 2004-present Facebook. All Rights Reserved.
#pragma once
namespace faiss { namespace gpu {
/// How user vector index data is stored on the GPU
enum IndicesOptions {
/// The user indices are only stored on the CPU; the GPU returns
/// (inverted list, offset) to the CPU which is then translated to
/// the real user index.
INDICES_CPU = 0,
/// The indices are not stored at all, on either the CPU or
/// GPU. Only (inverted list, offset) is returned to the user as the
/// index.
INDICES_IVF = 1,
/// Indices are stored as 32 bit integers on the GPU, but returned
/// as 64 bit integers
INDICES_32_BIT = 2,
/// Indices are stored as 64 bit integers on the GPU
INDICES_64_BIT = 3,
};
} } // namespace