/*! \file */ /* ************************************************************************ * Copyright (C) 2025 Advanced Micro Devices, Inc. All rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. * * ************************************************************************ */ #ifndef HIPSPARSE_SPARSE2DENSE_H #define HIPSPARSE_SPARSE2DENSE_H #ifdef __cplusplus extern "C" { #endif /*! \ingroup generic_module * \details * \p hipsparseSparseToDense_bufferSize computes the required user-allocated buffer size needed when converting * a sparse matrix to a dense matrix. This routine currently accepts the sparse matrix descriptor \p matA in CSR, * CSC, or COO format. This routine is used to determine the size of the buffer needed in \ref hipsparseSparseToDense. * * \p hipsparseSparseToDense_bufferSize supports different data types for the sparse and dense matrices. See * \ref hipsparseSparseToDense for a complete listing of all the data types available. * * @param[in] * handle handle to the hipSPARSE library context queue. * @param[in] * matA sparse matrix descriptor. * @param[in] * matB dense matrix descriptor. * @param[in] * alg algorithm for the sparse to dense computation. * @param[out] * pBufferSizeInBytes number of bytes of the temporary storage buffer. * * \retval HIPSPARSE_STATUS_SUCCESS the operation completed successfully. * \retval HIPSPARSE_STATUS_INVALID_VALUE \p handle, \p matA, \p matB, or \p pBufferSizeInBytes * pointer is invalid. */ #if(!defined(CUDART_VERSION) || CUDART_VERSION >= 12000) HIPSPARSE_EXPORT hipsparseStatus_t hipsparseSparseToDense_bufferSize(hipsparseHandle_t handle, hipsparseConstSpMatDescr_t matA, hipsparseDnMatDescr_t matB, hipsparseSparseToDenseAlg_t alg, size_t* pBufferSizeInBytes); #elif(CUDART_VERSION >= 11020) HIPSPARSE_EXPORT hipsparseStatus_t hipsparseSparseToDense_bufferSize(hipsparseHandle_t handle, hipsparseSpMatDescr_t matA, hipsparseDnMatDescr_t matB, hipsparseSparseToDenseAlg_t alg, size_t* pBufferSizeInBytes); #endif /*! \ingroup generic_module * \brief Sparse matrix to dense matrix conversion * * \details * \p hipsparseSparseToDense converts a sparse matrix to a dense matrix. This routine accepts * the sparse matrix descriptor \p matA in CSR, CSC, or COO format. It takes a user-allocated buffer * with a size that must first be computed by calling \ref hipsparseSparseToDense_bufferSize. * * The conversion of a sparse matrix into a dense one involves two steps. First, the user creates the sparse and * dense matrix descriptors and calls \ref hipsparseSparseToDense_bufferSize to determine the size of the required * temporary storage buffer. The user then allocates this buffer and passes it to \ref hipsparseSparseToDense * to complete the conversion. After the conversion is complete, the user is free to deallocate the storage * buffer. See the full example below for details. * * \p hipsparseSparseToDense supports the following uniform precision data types for the sparse and dense matrices \f$A\f$ * and \f$B\f$: * * \par Uniform Precisions: * * *
Uniform Precisions
A / B *
HIP_R_16F *
HIP_R_16BF *
HIP_R_32F *
HIP_R_64F *
HIP_C_32F *
HIP_C_64F *
* * \note Currently only the sparse matrix formats CSR, CSC, and COO are supported when converting a sparse matrix to a dense matrix. * * @param[in] * handle handle to the hipSPARSE library context queue. * @param[in] * matA sparse matrix descriptor. * @param[in] * matB dense matrix descriptor. * @param[in] * alg algorithm for the sparse to dense computation. * @param[in] * externalBuffer temporary storage buffer allocated by the user. * * \retval HIPSPARSE_STATUS_SUCCESS the operation completed successfully. * \retval HIPSPARSE_STATUS_INVALID_VALUE \p handle, \p matA, \p matB, or \p externalBuffer * pointer is invalid. */ #if(!defined(CUDART_VERSION) || CUDART_VERSION >= 12000) HIPSPARSE_EXPORT hipsparseStatus_t hipsparseSparseToDense(hipsparseHandle_t handle, hipsparseConstSpMatDescr_t matA, hipsparseDnMatDescr_t matB, hipsparseSparseToDenseAlg_t alg, void* externalBuffer); #elif(CUDART_VERSION >= 11020) HIPSPARSE_EXPORT hipsparseStatus_t hipsparseSparseToDense(hipsparseHandle_t handle, hipsparseSpMatDescr_t matA, hipsparseDnMatDescr_t matB, hipsparseSparseToDenseAlg_t alg, void* externalBuffer); #endif #ifdef __cplusplus } #endif #endif /* HIPSPARSE_SPARSE2DENSE_H */