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206 lines
10 KiB
C
206 lines
10 KiB
C
/*! \file */
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/* ************************************************************************
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* Copyright (C) 2023 Advanced Micro Devices, Inc. All rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the Software), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED AS IS, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* ************************************************************************ */
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#ifndef ROCSPARSE_ELL2CSR_H
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#define ROCSPARSE_ELL2CSR_H
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#include "../../rocsparse-types.h"
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#include "rocsparse/rocsparse-export.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*! \ingroup conv_module
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* \details
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* This function takes a sparse ELL matrix as input and computes the row offset array, \p csr_row_ptr,
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* and the total number of non-zeros, \p csr_nnz, that will result from converting the ELL format input
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* matrix to a CSR format output matrix. This function is the first step in the conversion and is used in
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* conjunction with \ref rocsparse_sell2csr "rocsparse_Xell2csr()". It is assumed that \p csr_row_ptr has
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* been allocated with size \p m+1.
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*
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* \note
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* This function is blocking with respect to the host.
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*
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* \note
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* This routine does not support execution in a hipGraph context.
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*
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* @param[in]
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* handle handle to the rocSPARSE library context queue.
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* @param[in]
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* m number of rows of the sparse ELL matrix.
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* @param[in]
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* n number of columns of the sparse ELL matrix.
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* @param[in]
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* ell_descr descriptor of the sparse ELL matrix. Currently, only
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* \ref rocsparse_matrix_type_general is supported.
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* @param[in]
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* ell_width number of non-zero elements per row in ELL storage format.
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* @param[in]
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* ell_col_ind array of \p m times \p ell_width elements containing the column indices
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* of the sparse ELL matrix.
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* @param[in]
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* csr_descr descriptor of the sparse CSR matrix. Currently, only
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* \ref rocsparse_matrix_type_general is supported.
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* @param[out]
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* csr_row_ptr array of \p m+1 elements that point to the start of every row of the
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* sparse CSR matrix.
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* @param[out]
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* csr_nnz pointer to the total number of non-zero elements in CSR storage
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* format.
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*
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* \retval rocsparse_status_success the operation completed successfully.
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* \retval rocsparse_status_invalid_handle the library context was not initialized.
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* \retval rocsparse_status_invalid_size \p m, \p n, or \p ell_width is invalid.
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* \retval rocsparse_status_invalid_pointer \p ell_descr, \p ell_col_ind,
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* \p csr_descr, \p csr_row_ptr, or \p csr_nnz pointer is invalid.
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* \retval rocsparse_status_not_implemented
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* \ref rocsparse_matrix_type != \ref rocsparse_matrix_type_general.
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*/
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ROCSPARSE_EXPORT
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rocsparse_status rocsparse_ell2csr_nnz(rocsparse_handle handle,
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rocsparse_int m,
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rocsparse_int n,
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const rocsparse_mat_descr ell_descr,
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rocsparse_int ell_width,
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const rocsparse_int* ell_col_ind,
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const rocsparse_mat_descr csr_descr,
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rocsparse_int* csr_row_ptr,
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rocsparse_int* csr_nnz);
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/*! \ingroup conv_module
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* \brief Convert a sparse ELL matrix into a sparse CSR matrix.
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*
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* \details
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* \p rocsparse_ell2csr converts a ELL matrix into a CSR matrix. It is assumed
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* that \p csr_row_ptr has already been filled and that \p csr_val and \p csr_col_ind
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* are allocated by the user. The allocation size for \p csr_row_ptr is computed as
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* \p m+1. The allocation size for \p csr_val and \p csr_col_ind is computed using
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* \ref rocsparse_ell2csr_nnz() which also fills in \p csr_row_ptr.
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*
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* \note
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* This function is non-blocking and executed asynchronously with respect to the host.
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* It can return before the actual computation has finished.
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*
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* \note
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* This routine supports execution in a hipGraph context.
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*
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* @param[in]
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* handle handle to the rocSPARSE library context queue.
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* @param[in]
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* m number of rows of the sparse ELL matrix.
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* @param[in]
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* n number of columns of the sparse ELL matrix.
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* @param[in]
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* ell_descr descriptor of the sparse ELL matrix. Currently, only
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* \ref rocsparse_matrix_type_general is supported.
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* @param[in]
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* ell_width number of non-zero elements per row in ELL storage format.
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* @param[in]
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* ell_val array of \p m times \p ell_width elements of the sparse ELL matrix.
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* @param[in]
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* ell_col_ind array of \p m times \p ell_width elements containing the column indices
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* of the sparse ELL matrix.
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* @param[in]
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* csr_descr descriptor of the sparse CSR matrix. Currently, only
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* \ref rocsparse_matrix_type_general is supported.
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* @param[out]
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* csr_val array containing the values of the sparse CSR matrix.
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* @param[in]
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* csr_row_ptr array of \p m+1 elements that point to the start of every row of the
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* sparse CSR matrix.
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* @param[out]
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* csr_col_ind array containing the column indices of the sparse CSR matrix.
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*
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* \retval rocsparse_status_success the operation completed successfully.
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* \retval rocsparse_status_invalid_handle the library context was not initialized.
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* \retval rocsparse_status_invalid_size \p m, \p n, or \p ell_width is invalid.
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* \retval rocsparse_status_invalid_pointer \p csr_descr, \p csr_val,
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* \p csr_row_ptr, \p csr_col_ind, \p ell_descr, \p ell_val, or
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* \p ell_col_ind pointer is invalid.
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* \retval rocsparse_status_not_implemented
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* \ref rocsparse_matrix_type != \ref rocsparse_matrix_type_general.
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*
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* \par Example
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* This example converts an ELL matrix into a CSR matrix.
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* \snippet example_rocsparse_ell2csr.cpp doc example
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*/
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/**@{*/
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ROCSPARSE_EXPORT
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rocsparse_status rocsparse_sell2csr(rocsparse_handle handle,
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rocsparse_int m,
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rocsparse_int n,
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const rocsparse_mat_descr ell_descr,
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rocsparse_int ell_width,
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const float* ell_val,
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const rocsparse_int* ell_col_ind,
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const rocsparse_mat_descr csr_descr,
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float* csr_val,
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const rocsparse_int* csr_row_ptr,
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rocsparse_int* csr_col_ind);
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ROCSPARSE_EXPORT
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rocsparse_status rocsparse_dell2csr(rocsparse_handle handle,
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rocsparse_int m,
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rocsparse_int n,
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const rocsparse_mat_descr ell_descr,
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rocsparse_int ell_width,
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const double* ell_val,
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const rocsparse_int* ell_col_ind,
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const rocsparse_mat_descr csr_descr,
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double* csr_val,
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const rocsparse_int* csr_row_ptr,
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rocsparse_int* csr_col_ind);
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ROCSPARSE_EXPORT
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rocsparse_status rocsparse_cell2csr(rocsparse_handle handle,
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rocsparse_int m,
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rocsparse_int n,
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const rocsparse_mat_descr ell_descr,
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rocsparse_int ell_width,
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const rocsparse_float_complex* ell_val,
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const rocsparse_int* ell_col_ind,
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const rocsparse_mat_descr csr_descr,
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rocsparse_float_complex* csr_val,
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const rocsparse_int* csr_row_ptr,
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rocsparse_int* csr_col_ind);
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ROCSPARSE_EXPORT
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rocsparse_status rocsparse_zell2csr(rocsparse_handle handle,
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rocsparse_int m,
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rocsparse_int n,
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const rocsparse_mat_descr ell_descr,
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rocsparse_int ell_width,
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const rocsparse_double_complex* ell_val,
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const rocsparse_int* ell_col_ind,
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const rocsparse_mat_descr csr_descr,
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rocsparse_double_complex* csr_val,
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const rocsparse_int* csr_row_ptr,
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rocsparse_int* csr_col_ind);
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/**@}*/
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#ifdef __cplusplus
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}
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#endif
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#endif /* ROCSPARSE_ELL2CSR_H */
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