megenginelite-sys 1.8.2

A safe megenginelite wrapper in Rust
Documentation 
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/**
 * \file dnn/src/cuda/local_share/helper.cuh
 * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 *
 * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 */
#include "src/cuda/utils.cuh"

namespace megdnn {
namespace cuda {
namespace local_share {

struct Param {
    int n, co, ci, hi, wi, ph, pw, grp_ho, grp_wo, sgh, sgw;
};

struct LaunchConfig {
    int nr_threads_x;
    int nr_threads_y;
    int nr_threads_z;
    int nr_blocks_x;
    int nr_blocks_y;
    int nr_blocks_z;
    int smem_size_in_bytes;
    LaunchConfig()
            : nr_threads_x{1},
              nr_threads_y{1},
              nr_threads_z{1},
              nr_blocks_x{1},
              nr_blocks_y{1},
              nr_blocks_z{1},
              smem_size_in_bytes{1} {}
};

template <int fh_, int fw_, int sh_, int sw_>
struct LocalShareConfig {
    static int const fh = fh_;
    static int const fw = fw_;
    static int const sh = sh_;
    static int const sw = sw_;
};

void _check_launch_config(const LaunchConfig& launch_config);

uint32_t _get_kern_block_size(const void* kern);

}  // namespace local_share
}  // namespace cuda
}  // namespace megdnn

#define unpack_local_share_params(_src, _filter, _dst, _param)                     \
    size_t n = _src[0], ci = _src[1], hi = _src[2], wi = _src[3];                  \
    size_t weight_spatial_pos;                                                     \
    if (_param.sparse == LocalShare::Param::Sparse::DENSE) {                       \
        weight_spatial_pos = 3;                                                    \
    } else {                                                                       \
        megdnn_assert(_param.sparse == LocalShare::Param::Sparse::GROUP);          \
        weight_spatial_pos = 4;                                                    \
    }                                                                              \
    size_t fh = _filter[weight_spatial_pos], fw = _filter[weight_spatial_pos + 1]; \
    size_t co = _dst[1], ho = _dst[2], wo = _dst[3];                               \
    size_t ph = _param.pad_h, pw = _param.pad_w;                                   \
    size_t sh = _param.stride_h, sw = _param.stride_w;                             \
    size_t dh = _param.dilate_h, dw = _param.dilate_w;                             \
    size_t sgh = _param.spatial_groups_h, sgw = _param.spatial_groups_w;           \
    MEGDNN_MARK_USED_VAR(n);                                                       \
    MEGDNN_MARK_USED_VAR(ci);                                                      \
    MEGDNN_MARK_USED_VAR(hi);                                                      \
    MEGDNN_MARK_USED_VAR(wi);                                                      \
    MEGDNN_MARK_USED_VAR(co);                                                      \
    MEGDNN_MARK_USED_VAR(fh);                                                      \
    MEGDNN_MARK_USED_VAR(fw);                                                      \
    MEGDNN_MARK_USED_VAR(ho);                                                      \
    MEGDNN_MARK_USED_VAR(wo);                                                      \
    MEGDNN_MARK_USED_VAR(ph);                                                      \
    MEGDNN_MARK_USED_VAR(pw);                                                      \
    MEGDNN_MARK_USED_VAR(sh);                                                      \
    MEGDNN_MARK_USED_VAR(sw);                                                      \
    MEGDNN_MARK_USED_VAR(dh);                                                      \
    MEGDNN_MARK_USED_VAR(dw);                                                      \
    MEGDNN_MARK_USED_VAR(sgh);                                                     \
    MEGDNN_MARK_USED_VAR(sgw);

// vim: syntax=cuda.doxygen