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477 lines
26 KiB
C
477 lines
26 KiB
C
/*! \file */
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/* ************************************************************************
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* Copyright (C) 2023-2024 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_BSRIC0_H
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#define ROCSPARSE_BSRIC0_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 precond_module
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* \details
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* \p rocsparse_bsric0_zero_pivot returns \ref rocsparse_status_zero_pivot if either a
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* structural or numerical zero has been found during \ref rocsparse_sbsric0 "rocsparse_Xbsric0()"
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* computation. The first zero pivot \f$j\f$ at \f$A_{j,j}\f$ is stored in \p position, using the same
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* index base as the BSR matrix.
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*
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* \p position can be in host or device memory. If no zero pivot has been found,
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* \p position is set to -1 and \ref rocsparse_status_success is returned instead.
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*
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* \note
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* If a zero pivot is found, \p position=j means that either the diagonal block \p A(j,j)
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* is missing (structural zero) or the diagonal block \p A(j,j) is not positive definite
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* (numerical zero).
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*
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* \note \p rocsparse_bsric0_zero_pivot is a blocking function. It might influence negatively
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* performance.
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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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* info structure that holds the information collected during the analysis step.
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* @param[inout]
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* position pointer to zero pivot \f$j\f$, which can be in host or device memory.
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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_pointer \p info or \p position pointer is
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* invalid.
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* \retval rocsparse_status_internal_error an internal error occurred.
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* \retval rocsparse_status_zero_pivot zero pivot has been found.
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*/
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ROCSPARSE_EXPORT
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rocsparse_status rocsparse_bsric0_zero_pivot(rocsparse_handle handle,
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rocsparse_mat_info info,
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rocsparse_int* position);
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/*! \ingroup precond_module
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* \details
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* \p rocsparse_bsric0_buffer_size returns the size of the temporary storage buffer
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* that is required by \ref rocsparse_sbsric0_analysis "rocsparse_Xbsric0_analysis()" and
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* \ref rocsparse_sbsric0 "rocsparse_Xbsric0()". The temporary storage buffer must be
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* allocated by the user. The size of the temporary storage buffer is identical to the size
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* returned by \ref rocsparse_sbsrsv_buffer_size "rocsparse_Xbsrsv_buffer_size()" and
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* \ref rocsparse_sbsrilu0_buffer_size "rocsparse_Xbsrilu0_buffer_size()" if the matrix sparsity
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* pattern is identical. The user-allocated buffer can therefore be shared between subsequent calls
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* to those functions.
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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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* dir direction that specifies whether to count non-zero elements by \ref rocsparse_direction_row or by
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* \ref rocsparse_direction_column.
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* @param[in]
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* mb number of block rows in the sparse BSR matrix.
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* @param[in]
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* nnzb number of non-zero block entries of the sparse BSR matrix.
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* @param[in]
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* descr descriptor of the sparse BSR matrix.
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* @param[in]
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* bsr_val array of length \p nnzb*block_dim*block_dim containing the values of the sparse BSR matrix.
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* @param[in]
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* bsr_row_ptr array of \p mb+1 elements that point to the start of every block row of the
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* sparse BSR matrix.
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* @param[in]
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* bsr_col_ind array of \p nnzb elements containing the block column indices of the sparse BSR matrix.
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* @param[in]
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* block_dim the block dimension of the BSR matrix. Between 1 and m, where \p m=mb*block_dim.
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* @param[out]
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* info structure that holds the information collected during the analysis step.
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* @param[out]
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* buffer_size number of bytes of the temporary storage buffer required by
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* \ref rocsparse_sbsric0_analysis "rocsparse_Xbsric0_analysis()" and
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* \ref rocsparse_sbsric0 "rocsparse_Xbsric0()".
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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 mb, \p nnzb, or \p block_dim is invalid.
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* \retval rocsparse_status_invalid_pointer \p descr, \p bsr_val, \p bsr_row_ptr,
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* \p bsr_col_ind, \p info, or \p buffer_size pointer is invalid.
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* \retval rocsparse_status_internal_error an internal error occurred.
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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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/**@{*/
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ROCSPARSE_EXPORT
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rocsparse_status rocsparse_sbsric0_buffer_size(rocsparse_handle handle,
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rocsparse_direction dir,
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rocsparse_int mb,
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rocsparse_int nnzb,
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const rocsparse_mat_descr descr,
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const float* bsr_val,
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const rocsparse_int* bsr_row_ptr,
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const rocsparse_int* bsr_col_ind,
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rocsparse_int block_dim,
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rocsparse_mat_info info,
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size_t* buffer_size);
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ROCSPARSE_EXPORT
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rocsparse_status rocsparse_dbsric0_buffer_size(rocsparse_handle handle,
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rocsparse_direction dir,
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rocsparse_int mb,
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rocsparse_int nnzb,
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const rocsparse_mat_descr descr,
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const double* bsr_val,
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const rocsparse_int* bsr_row_ptr,
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const rocsparse_int* bsr_col_ind,
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rocsparse_int block_dim,
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rocsparse_mat_info info,
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size_t* buffer_size);
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ROCSPARSE_EXPORT
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rocsparse_status rocsparse_cbsric0_buffer_size(rocsparse_handle handle,
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rocsparse_direction dir,
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rocsparse_int mb,
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rocsparse_int nnzb,
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const rocsparse_mat_descr descr,
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const rocsparse_float_complex* bsr_val,
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const rocsparse_int* bsr_row_ptr,
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const rocsparse_int* bsr_col_ind,
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rocsparse_int block_dim,
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rocsparse_mat_info info,
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size_t* buffer_size);
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ROCSPARSE_EXPORT
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rocsparse_status rocsparse_zbsric0_buffer_size(rocsparse_handle handle,
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rocsparse_direction dir,
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rocsparse_int mb,
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rocsparse_int nnzb,
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const rocsparse_mat_descr descr,
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const rocsparse_double_complex* bsr_val,
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const rocsparse_int* bsr_row_ptr,
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const rocsparse_int* bsr_col_ind,
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rocsparse_int block_dim,
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rocsparse_mat_info info,
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size_t* buffer_size);
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/**@}*/
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/*! \ingroup precond_module
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* \details
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* \p rocsparse_bsric0_analysis performs the analysis step for
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* \ref rocsparse_sbsric0 "rocsparse_Xbsric0()". It is expected that this function will
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* be executed only once for a given matrix and particular operation type. The analysis
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* metadata can be cleared by \ref rocsparse_bsric0_clear().
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*
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* \p rocsparse_bsric0_analysis can share its meta data with
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* \ref rocsparse_sbsrilu0_analysis "rocsparse_Xbsrilu0_analysis()",
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* \ref rocsparse_sbsrsv_analysis "rocsparse_Xbsrsv_analysis()", and
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* \ref rocsparse_sbsrsm_analysis "rocsparse_Xbsrsm_analysis()". Selecting
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* \ref rocsparse_analysis_policy_reuse policy can greatly improve the computation
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* performance of metadata. However, the user needs to ensure that the sparsity
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* pattern remains unchanged. If this cannot be assured,
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* \ref rocsparse_analysis_policy_force must be used.
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*
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* \note
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* If the matrix sparsity pattern changes, the gathered information will become invalid.
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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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* dir direction that specified whether to count non-zero elements by \ref rocsparse_direction_row or by
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* \ref rocsparse_direction_column.
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* @param[in]
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* mb number of block rows in the sparse BSR matrix.
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* @param[in]
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* nnzb number of non-zero block entries of the sparse BSR matrix.
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* @param[in]
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* descr descriptor of the sparse BSR matrix.
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* @param[in]
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* bsr_val array of length \p nnzb*block_dim*block_dim containing the values of the sparse BSR matrix.
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* @param[in]
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* bsr_row_ptr array of \p mb+1 elements that point to the start of every block row of the
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* sparse BSR matrix.
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* @param[in]
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* bsr_col_ind array of \p nnzb elements containing the block column indices of the sparse BSR matrix.
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* @param[in]
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* block_dim the block dimension of the BSR matrix. Between 1 and m, where \p m=mb*block_dim.
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* @param[out]
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* info structure that holds the information collected during
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* the analysis step.
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* @param[in]
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* analysis \ref rocsparse_analysis_policy_reuse or
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* \ref rocsparse_analysis_policy_force.
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* @param[in]
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* solve \ref rocsparse_solve_policy_auto.
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* @param[in]
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* temp_buffer temporary storage buffer allocated by the user.
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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 mb, \p nnzb, or \p block_dim is invalid.
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* \retval rocsparse_status_invalid_pointer \p descr, \p bsr_val, \p bsr_row_ptr,
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* \p bsr_col_ind, \p info, or \p temp_buffer pointer is invalid.
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* \retval rocsparse_status_internal_error an internal error occurred.
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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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/**@{*/
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ROCSPARSE_EXPORT
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rocsparse_status rocsparse_sbsric0_analysis(rocsparse_handle handle,
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rocsparse_direction dir,
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rocsparse_int mb,
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rocsparse_int nnzb,
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const rocsparse_mat_descr descr,
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const float* bsr_val,
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const rocsparse_int* bsr_row_ptr,
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const rocsparse_int* bsr_col_ind,
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rocsparse_int block_dim,
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rocsparse_mat_info info,
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rocsparse_analysis_policy analysis,
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rocsparse_solve_policy solve,
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void* temp_buffer);
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ROCSPARSE_EXPORT
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rocsparse_status rocsparse_dbsric0_analysis(rocsparse_handle handle,
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rocsparse_direction dir,
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rocsparse_int mb,
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rocsparse_int nnzb,
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const rocsparse_mat_descr descr,
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const double* bsr_val,
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const rocsparse_int* bsr_row_ptr,
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const rocsparse_int* bsr_col_ind,
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rocsparse_int block_dim,
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rocsparse_mat_info info,
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rocsparse_analysis_policy analysis,
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rocsparse_solve_policy solve,
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void* temp_buffer);
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ROCSPARSE_EXPORT
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rocsparse_status rocsparse_cbsric0_analysis(rocsparse_handle handle,
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rocsparse_direction dir,
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rocsparse_int mb,
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rocsparse_int nnzb,
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const rocsparse_mat_descr descr,
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const rocsparse_float_complex* bsr_val,
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const rocsparse_int* bsr_row_ptr,
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const rocsparse_int* bsr_col_ind,
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rocsparse_int block_dim,
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rocsparse_mat_info info,
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rocsparse_analysis_policy analysis,
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rocsparse_solve_policy solve,
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void* temp_buffer);
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ROCSPARSE_EXPORT
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rocsparse_status rocsparse_zbsric0_analysis(rocsparse_handle handle,
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rocsparse_direction dir,
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rocsparse_int mb,
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rocsparse_int nnzb,
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const rocsparse_mat_descr descr,
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const rocsparse_double_complex* bsr_val,
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const rocsparse_int* bsr_row_ptr,
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const rocsparse_int* bsr_col_ind,
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rocsparse_int block_dim,
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rocsparse_mat_info info,
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rocsparse_analysis_policy analysis,
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rocsparse_solve_policy solve,
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void* temp_buffer);
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/**@}*/
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/*! \ingroup precond_module
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* \details
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* \p rocsparse_bsric0_clear deallocates all memory that was allocated by
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* \ref rocsparse_sbsric0_analysis "rocsparse_Xbsric0_analysis()". This is especially useful
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* if memory is an issue and the analysis data is not required for further computation.
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*
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* \note
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* Calling \p rocsparse_bsric0_clear is optional. All allocated resources will be
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* cleared when the opaque \ref rocsparse_mat_info struct is destroyed using
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* \ref rocsparse_destroy_mat_info().
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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[inout]
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* info structure that holds the information collected during the analysis step.
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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_pointer \p info pointer is invalid.
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* \retval rocsparse_status_memory_error the buffer holding the meta data could not
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* be deallocated.
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* \retval rocsparse_status_internal_error an internal error occurred.
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*/
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ROCSPARSE_EXPORT
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rocsparse_status rocsparse_bsric0_clear(rocsparse_handle handle, rocsparse_mat_info info);
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/*! \ingroup precond_module
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* \brief Incomplete Cholesky factorization with 0 fill-ins and no pivoting using the BSR
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* storage format.
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*
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* \details
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* \p rocsparse_bsric0 computes the incomplete Cholesky factorization with 0 fill-ins
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* and no pivoting of a sparse \f$mb \times mb\f$ BSR matrix \f$A\f$, such that
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* \f[
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* A \approx LL^T
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* \f]
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*
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* Computing the above incomplete Cholesky factorization requires three steps to complete. First,
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* determine the size of the required temporary storage buffer by calling \ref rocsparse_sbsric0_buffer_size,
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* \ref rocsparse_dbsric0_buffer_size, \ref rocsparse_cbsric0_buffer_size, or \ref rocsparse_zbsric0_buffer_size. After
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* this buffer size has been determined, allocate the buffer and pass it to \ref rocsparse_sbsric0_analysis,
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* \ref rocsparse_dbsric0_analysis, \ref rocsparse_cbsric0_analysis, or \ref rocsparse_zbsric0_analysis. This will
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* perform analysis on the sparsity pattern of the matrix. Finally, call \p rocsparse_sbsric0,
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* \p rocsparse_dbsric0, \p rocsparse_cbsric0, or \p rocsparse_zbsric0 to perform the actual factorization. The calculation
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* of the buffer size and the analysis of the sparse matrix only need to be performed once for a given sparsity pattern,
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* while the factorization can be repeatedly applied to multiple matrices having the same sparsity pattern. After all calls
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* to \ref rocsparse_sbsric0 "rocsparse_Xbsric0()" are complete, the temporary buffer can be deallocated.
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*
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* \p rocsparse_bsric0 reports the first zero pivot (either numerical or structural zero).
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* The zero pivot status can be obtained by calling \ref rocsparse_bsric0_zero_pivot().
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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.
|
|
*
|
|
* \note
|
|
* This routine supports execution in a hipGraph context.
|
|
*
|
|
* @param[in]
|
|
* handle handle to the rocSPARSE library context queue.
|
|
* @param[in]
|
|
* dir direction that specified whether to count non-zero elements by \ref rocsparse_direction_row or by
|
|
* \ref rocsparse_direction_column.
|
|
* @param[in]
|
|
* mb number of block rows in the sparse BSR matrix.
|
|
* @param[in]
|
|
* nnzb number of non-zero block entries of the sparse BSR matrix.
|
|
* @param[in]
|
|
* descr descriptor of the sparse BSR matrix.
|
|
* @param[inout]
|
|
* bsr_val array of length \p nnzb*block_dim*block_dim containing the values of the sparse BSR matrix.
|
|
* @param[in]
|
|
* bsr_row_ptr array of \p mb+1 elements that point to the start of every block row of the
|
|
* sparse BSR matrix.
|
|
* @param[in]
|
|
* bsr_col_ind array of \p nnzb elements containing the block column indices of the sparse BSR matrix.
|
|
* @param[in]
|
|
* block_dim the block dimension of the BSR matrix. Between 1 and m, where \p m=mb*block_dim.
|
|
* @param[in]
|
|
* info structure that holds the information collected during the analysis step.
|
|
* @param[in]
|
|
* policy \ref rocsparse_solve_policy_auto.
|
|
* @param[in]
|
|
* temp_buffer temporary storage buffer allocated by the user.
|
|
*
|
|
* \retval rocsparse_status_success the operation completed successfully.
|
|
* \retval rocsparse_status_invalid_handle the library context was not initialized.
|
|
* \retval rocsparse_status_invalid_size \p mb, \p nnzb, or \p block_dim is invalid.
|
|
* \retval rocsparse_status_invalid_pointer \p descr, \p bsr_val, \p bsr_row_ptr,
|
|
* or \p bsr_col_ind pointer is invalid.
|
|
* \retval rocsparse_status_arch_mismatch the device is not supported.
|
|
* \retval rocsparse_status_internal_error an internal error occurred.
|
|
* \retval rocsparse_status_not_implemented
|
|
* \ref rocsparse_matrix_type != \ref rocsparse_matrix_type_general.
|
|
*
|
|
* \par Example
|
|
* Consider the sparse \f$m \times m\f$ matrix \f$A\f$, stored in BSR
|
|
* storage format. The following example computes the incomplete Cholesky factorization
|
|
* \f$M \approx LL^T\f$ and solves the preconditioned system \f$My = x\f$.
|
|
* \snippet example_rocsparse_bsric0.cpp doc example
|
|
*/
|
|
/**@{*/
|
|
ROCSPARSE_EXPORT
|
|
rocsparse_status rocsparse_sbsric0(rocsparse_handle handle,
|
|
rocsparse_direction dir,
|
|
rocsparse_int mb,
|
|
rocsparse_int nnzb,
|
|
const rocsparse_mat_descr descr,
|
|
float* bsr_val,
|
|
const rocsparse_int* bsr_row_ptr,
|
|
const rocsparse_int* bsr_col_ind,
|
|
rocsparse_int block_dim,
|
|
rocsparse_mat_info info,
|
|
rocsparse_solve_policy policy,
|
|
void* temp_buffer);
|
|
|
|
ROCSPARSE_EXPORT
|
|
rocsparse_status rocsparse_dbsric0(rocsparse_handle handle,
|
|
rocsparse_direction dir,
|
|
rocsparse_int mb,
|
|
rocsparse_int nnzb,
|
|
const rocsparse_mat_descr descr,
|
|
double* bsr_val,
|
|
const rocsparse_int* bsr_row_ptr,
|
|
const rocsparse_int* bsr_col_ind,
|
|
rocsparse_int block_dim,
|
|
rocsparse_mat_info info,
|
|
rocsparse_solve_policy policy,
|
|
void* temp_buffer);
|
|
|
|
ROCSPARSE_EXPORT
|
|
rocsparse_status rocsparse_cbsric0(rocsparse_handle handle,
|
|
rocsparse_direction dir,
|
|
rocsparse_int mb,
|
|
rocsparse_int nnzb,
|
|
const rocsparse_mat_descr descr,
|
|
rocsparse_float_complex* bsr_val,
|
|
const rocsparse_int* bsr_row_ptr,
|
|
const rocsparse_int* bsr_col_ind,
|
|
rocsparse_int block_dim,
|
|
rocsparse_mat_info info,
|
|
rocsparse_solve_policy policy,
|
|
void* temp_buffer);
|
|
|
|
ROCSPARSE_EXPORT
|
|
rocsparse_status rocsparse_zbsric0(rocsparse_handle handle,
|
|
rocsparse_direction dir,
|
|
rocsparse_int mb,
|
|
rocsparse_int nnzb,
|
|
const rocsparse_mat_descr descr,
|
|
rocsparse_double_complex* bsr_val,
|
|
const rocsparse_int* bsr_row_ptr,
|
|
const rocsparse_int* bsr_col_ind,
|
|
rocsparse_int block_dim,
|
|
rocsparse_mat_info info,
|
|
rocsparse_solve_policy policy,
|
|
void* temp_buffer);
|
|
/**@}*/
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* ROCSPARSE_BSRIC0_H */
|