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/* | ||
* Copyright (c) Meta Platforms, Inc. and affiliates. | ||
* All rights reserved. | ||
* | ||
* This source code is licensed under the BSD-style license found in the | ||
* LICENSE file in the root directory of this source tree. | ||
*/ | ||
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#pragma once | ||
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#include <ATen/ATen.h> | ||
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// These values are adjusted in backward based on B and T | ||
constexpr int DEFAULT_INFO_NUM_BITS = 32; | ||
constexpr int DEFAULT_INFO_B_NUM_BITS = 26; | ||
constexpr uint32_t DEFAULT_INFO_B_MASK = (1u << DEFAULT_INFO_B_NUM_BITS) - 1; | ||
constexpr uint32_t MAX_T = | ||
(1u << (DEFAULT_INFO_NUM_BITS - DEFAULT_INFO_B_NUM_BITS)) - 1; | ||
constexpr uint32_t MAX_B = (1u << DEFAULT_INFO_B_NUM_BITS) - 1; | ||
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std::tuple<int64_t, int64_t> | ||
get_infos_metadata(at::Tensor unused, int64_t B, int64_t T); | ||
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std::tuple<int32_t, uint32_t> adjust_info_B_num_bits(int32_t B, int32_t T); | ||
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std::tuple<at::Tensor /*row_output_offsets*/, at::Tensor /*b_t_map*/> | ||
generate_vbe_metadata( | ||
const at::Tensor& B_offsets, | ||
const at::Tensor& B_offsets_rank_per_feature, | ||
const at::Tensor& output_offsets_feature_rank, | ||
const at::Tensor& D_offsets, | ||
const int64_t D, | ||
const bool nobag, | ||
const int64_t max_B_feature_rank, | ||
const int64_t info_B_num_bits, | ||
const int64_t total_B); |
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