cub/device/device_spmv.cuh

File members: cub/device/device_spmv.cuh

/******************************************************************************
 * Copyright (c) 2011, Duane Merrill.  All rights reserved.
 * Copyright (c) 2011-2022, NVIDIA CORPORATION.  All rights reserved.
 *
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 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the NVIDIA CORPORATION nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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 * DISCLAIMED. IN NO EVENT SHALL NVIDIA CORPORATION BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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#pragma once

#include <cub/config.cuh>

#if defined(_CCCL_IMPLICIT_SYSTEM_HEADER_GCC)
#  pragma GCC system_header
#elif defined(_CCCL_IMPLICIT_SYSTEM_HEADER_CLANG)
#  pragma clang system_header
#elif defined(_CCCL_IMPLICIT_SYSTEM_HEADER_MSVC)
#  pragma system_header
#endif // no system header

#include <cub/config.cuh>

#include <cub/detail/nvtx.cuh>
#include <cub/device/dispatch/dispatch_spmv_orig.cuh>

#include <iterator>
#include <limits>

#include <stdio.h>

CUB_NAMESPACE_BEGIN

struct CCCL_DEPRECATED_BECAUSE("Use the cuSPARSE library instead") DeviceSpmv
{

  template <typename ValueT>
  CCCL_DEPRECATED_BECAUSE("Use the cuSPARSE library instead")
  CUB_RUNTIME_FUNCTION static cudaError_t
    CsrMV(void* d_temp_storage,
          size_t& temp_storage_bytes,
          const ValueT* d_values,
          const int* d_row_offsets,
          const int* d_column_indices,
          const ValueT* d_vector_x,
          ValueT* d_vector_y,
          int num_rows,
          int num_cols,
          int num_nonzeros,
          cudaStream_t stream = 0)
  {
    CUB_DETAIL_NVTX_RANGE_SCOPE_IF(d_temp_storage, "cub::DeviceSpmv::CsrMV");

    SpmvParams<ValueT, int> spmv_params;
    spmv_params.d_values          = d_values;
    spmv_params.d_row_end_offsets = d_row_offsets + 1;
    spmv_params.d_column_indices  = d_column_indices;
    spmv_params.d_vector_x        = d_vector_x;
    spmv_params.d_vector_y        = d_vector_y;
    spmv_params.num_rows          = num_rows;
    spmv_params.num_cols          = num_cols;
    spmv_params.num_nonzeros      = num_nonzeros;
    spmv_params.alpha             = ValueT{1};
    spmv_params.beta              = ValueT{0};

    _CCCL_SUPPRESS_DEPRECATED_PUSH
    return DispatchSpmv<ValueT, int>::Dispatch(d_temp_storage, temp_storage_bytes, spmv_params, stream);
    _CCCL_SUPPRESS_DEPRECATED_POP
  }

};

CUB_NAMESPACE_END