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344 lines
16 KiB
C

/*! \file */
/* ************************************************************************
* Copyright (C) 2025-2026 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_SPMV_H
#define HIPSPARSE_SPMV_H
#ifdef __cplusplus
extern "C" {
#endif
/*! \ingroup generic_module
* \details
* \p hipsparseSpMV_bufferSize computes the user-allocated buffer size required when computing the
* sparse matrix multiplication with a dense vector:
* \f[
* y := \alpha \cdot op(A) \cdot x + \beta \cdot y,
* \f]
* where \f$op(A)\f$ is a sparse \f$m \times n\f$ matrix in CSR, CSC, COO, COO (AoS), BSR, or SELL format, \f$x\f$ is
* a dense vector of length \f$n\f$, and \f$y\f$ is a dense vector of length \f$m\f$.
*
* \p hipsparseSpMV_bufferSize supports multiple combinations of data types and compute types. See \ref hipsparseSpMV for a complete
* listing of all the data type and compute type combinations available.
*
* @param[in]
* handle handle to the hipSPARSE library context queue.
* @param[in]
* opA matrix operation type.
* @param[in]
* alpha scalar \f$\alpha\f$.
* @param[in]
* matA sparse matrix descriptor.
* @param[in]
* vecX dense vector descriptor.
* @param[in]
* beta scalar \f$\beta\f$.
* @param[inout]
* vecY dense vector descriptor.
* @param[in]
* computeType floating point precision for the SpMV computation.
* @param[in]
* alg SpMV algorithm for the SpMV computation.
* @param[out]
* pBufferSizeInBytes number of bytes of the temporary storage buffer.
*
* \retval HIPSPARSE_STATUS_SUCCESS the operation completed successfully.
* \retval HIPSPARSE_STATUS_NOT_INITIALIZED \p handle is not initialized.
* \retval HIPSPARSE_STATUS_INVALID_VALUE \p handle, \p alpha, \p matA, \p vecX, \p beta,
* \p vecY, or \p pBufferSizeInBytes is nullptr, \p opA is invalid, or the matrix
* or vector dimensions are incompatible.
* \retval HIPSPARSE_STATUS_NOT_SUPPORTED \p computeType or \p alg is currently not supported.
*/
#if(!defined(CUDART_VERSION) || CUDART_VERSION >= 12000)
HIPSPARSE_EXPORT
hipsparseStatus_t hipsparseSpMV_bufferSize(hipsparseHandle_t handle,
hipsparseOperation_t opA,
const void* alpha,
hipsparseConstSpMatDescr_t matA,
hipsparseConstDnVecDescr_t vecX,
const void* beta,
const hipsparseDnVecDescr_t vecY,
hipDataType computeType,
hipsparseSpMVAlg_t alg,
size_t* pBufferSizeInBytes);
#elif(CUDART_VERSION > 10010 || (CUDART_VERSION == 10010 && CUDART_10_1_UPDATE_VERSION == 1))
HIPSPARSE_EXPORT
hipsparseStatus_t hipsparseSpMV_bufferSize(hipsparseHandle_t handle,
hipsparseOperation_t opA,
const void* alpha,
const hipsparseSpMatDescr_t matA,
const hipsparseDnVecDescr_t vecX,
const void* beta,
const hipsparseDnVecDescr_t vecY,
hipDataType computeType,
hipsparseSpMVAlg_t alg,
size_t* pBufferSizeInBytes);
#endif
/*! \ingroup generic_module
* \details
* \p hipsparseSpMV_preprocess performs analysis on the sparse matrix \f$op(A)\f$ when computing the
* sparse matrix multiplication with a dense vector:
* \f[
* y := \alpha \cdot op(A) \cdot x + \beta \cdot y,
* \f]
* where \f$op(A)\f$ is a sparse \f$m \times n\f$ matrix in CSR, CSC, COO, COO (AoS), BSR, or SELL format, \f$x\f$
* is a dense vector of length \f$n\f$, and \f$y\f$ is a dense vector of length \f$m\f$. This step is
* optional but it might result in better performance.
*
* \p hipsparseSpMV_preprocess supports multiple combinations of data types and compute types. See \ref hipsparseSpMV for
* a complete listing of all the data type and compute type combinations available.
*
* @param[in]
* handle handle to the hipSPARSE library context queue.
* @param[in]
* opA matrix operation type.
* @param[in]
* alpha scalar \f$\alpha\f$.
* @param[in]
* matA matrix descriptor.
* @param[in]
* vecX vector descriptor.
* @param[in]
* beta scalar \f$\beta\f$.
* @param[inout]
* vecY vector descriptor.
* @param[in]
* computeType floating-point precision for the SpMV computation.
* @param[in]
* alg SpMV algorithm for the SpMV computation.
* @param[out]
* externalBuffer temporary storage buffer allocated by the user.
*
* \retval HIPSPARSE_STATUS_SUCCESS the operation completed successfully.
* \retval HIPSPARSE_STATUS_INVALID_VALUE \p handle, \p alpha, \p matA, \p x, \p beta, \p y, or
* \p externalBuffer pointer is invalid or if \p opA, \p computeType, or \p alg is incorrect.
* \retval HIPSPARSE_STATUS_NOT_SUPPORTED \p computeType or \p alg is
* currently not supported.
*/
#if(!defined(CUDART_VERSION) || CUDART_VERSION >= 12000)
HIPSPARSE_EXPORT
hipsparseStatus_t hipsparseSpMV_preprocess(hipsparseHandle_t handle,
hipsparseOperation_t opA,
const void* alpha,
hipsparseConstSpMatDescr_t matA,
hipsparseConstDnVecDescr_t vecX,
const void* beta,
const hipsparseDnVecDescr_t vecY,
hipDataType computeType,
hipsparseSpMVAlg_t alg,
void* externalBuffer);
#elif(CUDART_VERSION > 10010 || (CUDART_VERSION == 10010 && CUDART_10_1_UPDATE_VERSION == 1))
HIPSPARSE_EXPORT
hipsparseStatus_t hipsparseSpMV_preprocess(hipsparseHandle_t handle,
hipsparseOperation_t opA,
const void* alpha,
const hipsparseSpMatDescr_t matA,
const hipsparseDnVecDescr_t vecX,
const void* beta,
const hipsparseDnVecDescr_t vecY,
hipDataType computeType,
hipsparseSpMVAlg_t alg,
void* externalBuffer);
#endif
/*! \ingroup generic_module
* \brief Compute the sparse matrix multiplication with a dense vector.
*
* \details
* \p hipsparseSpMV multiplies the scalar \f$\alpha\f$ with a sparse \f$m \times n\f$ matrix \f$op(A)\f$, defined in CSR,
* CSC, COO, COO (AoS), BSR, or SELL format, with the dense vector \f$x\f$ and adds the result to the dense vector \f$y\f$
* that is multiplied by the scalar \f$\beta\f$, such that
* \f[
* y := \alpha \cdot op(A) \cdot x + \beta \cdot y,
* \f]
* with
* \f[
* op(A) = \left\{
* \begin{array}{ll}
* A, & \text{if trans == HIPSPARSE_OPERATION_NON_TRANSPOSE} \\
* A^T, & \text{if trans == HIPSPARSE_OPERATION_TRANSPOSE} \\
* A^H, & \text{if trans == HIPSPARSE_OPERATION_CONJUGATE_TRANSPOSE}
* \end{array}
* \right.
* \f]
*
* Performing the above operation involves multiple steps. First, the user calls \ref hipsparseSpMV_bufferSize to determine the
* size of the required temporary storage buffer. The user then allocates this buffer and calls \ref hipsparseSpMV_preprocess.
* Depending on the algorithm and sparse matrix format, this will perform analysis on the sparsity pattern of \f$op(A)\f$. Finally,
* the user completes the operation by calling \p hipsparseSpMV. The buffer size and preprecess routines only need to be called
* once for a given sparse matrix \f$op(A)\f$, while the computation can be repeatedly used with different \f$x\f$ and \f$y\f$
* vectors. After all calls to \p hipsparseSpMV are complete, the temporary buffer can be deallocated.
*
* \p hipsparseSpMV supports multiple different algorithms. These algorithms have different trade offs depending on the sparsity
* pattern of the matrix, whether or not the results need to be deterministic, and how many times the sparse-vector product will
* be performed.
*
* <table>
* <caption id="spmv_csr_algorithms">CSR/CSC Algorithms</caption>
* <tr><th>CSR/CSC Algorithms
* <tr><td>HIPSPARSE_SPMV_CSR_ALG1</td>
* <tr><td>HIPSPARSE_SPMV_CSR_ALG2</td>
* <tr><td>HIPSPARSE_SPMV_CSR_ALG3</td>
* </table>
*
* <table>
* <caption id="spmv_coo_algorithms">COO Algorithms</caption>
* <tr><th>COO Algorithms
* <tr><td>HIPSPARSE_SPMV_COO_ALG1</td>
* <tr><td>HIPSPARSE_SPMV_COO_ALG2</td>
* </table>
*
* <table>
* <caption id="spmv_bsr_algorithms">BSR Algorithms</caption>
* <tr><th>BSR Algorithms
* <tr><td>HIPSPARSE_SPMV_BSR_ALG1</td>
* </table>
*
* <table>
* <caption id="spmv_sell_algorithms">SELL Algorithms</caption>
* <tr><th>SELL Algorithms
* <tr><td>HIPSPARSE_SPMV_SELL_ALG1</td>
* </table>
*
* \p hipsparseSpMV supports multiple combinations of data types and compute types. The tables below indicate the currently
* supported data types that can be used for the sparse matrix \f$op(A)\f$ and the dense vectors \f$x\f$ and \f$y\f$ and the
* compute type for \f$\alpha\f$ and \f$\beta\f$. The advantage of using different data types is to save on memory bandwidth
* and storage when a user application allows while performing the actual computation in a higher precision.
*
* \par Uniform Precisions:
* <table>
* <caption id="spmv_uniform">Uniform Precisions</caption>
* <tr><th>A / X / Y / compute_type
* <tr><td>HIP_R_32F
* <tr><td>HIP_R_64F
* <tr><td>HIP_C_32F
* <tr><td>HIP_C_64F
* </table>
*
* \par Mixed Precisions:
* <table>
* <caption id="spmv_mixed">Mixed Precisions</caption>
* <tr><th>A / X <th>Y <th>compute_type
* <tr><td>HIP_R_8I <td>HIP_R_32I <td>HIP_R_32I
* <tr><td>HIP_R_8I <td>HIP_R_32F <td>HIP_R_32F
* <tr><td>HIP_R_16F <td>HIP_R_32F <td>HIP_R_32F
* <tr><td>HIP_R_16F <td>HIP_R_16F <td>HIP_R_32F
* <tr><td>HIP_R_16BF <td>HIP_R_32F <td>HIP_R_32F
* <tr><td>HIP_R_16BF <td>HIP_R_16BF <td>HIP_R_32F
* </table>
*
* \par Mixed-regular Real Precisions
* <table>
* <caption id="spmv_mixed_regular_real">Mixed-regular real precisions</caption>
* <tr><th>A <th>X / Y / compute_type
* <tr><td>HIP_R_32F <td>HIP_R_64F
* <tr><td>HIP_C_32F <td>HIP_C_64F
* </table>
*
* \par Mixed-regular Complex Precisions
* <table>
* <caption id="spmv_mixed_regular_complex">Mixed-regular Complex precisions</caption>
* <tr><th>A <th>X / Y / compute_type
* <tr><td>HIP_R_32F <td>HIP_C_32F
* <tr><td>HIP_R_64F <td>HIP_C_64F
* </table>
*
* \p hipsparseSpMV supports \ref HIPSPARSE_INDEX_32I and \ref HIPSPARSE_INDEX_64I index precisions
* for storing the row pointer and row/column indices arrays of the sparse matrices.
*
* \note
* None of the algorithms above are deterministic when \f$A\f$ is transposed.
*
* \note
* The sparse matrix formats currently supported are: \ref HIPSPARSE_FORMAT_COO, \ref HIPSPARSE_FORMAT_COO_AOS,
* \ref HIPSPARSE_FORMAT_CSR, \ref HIPSPARSE_FORMAT_CSC, \ref HIPSPARSE_FORMAT_BSR, and \ref HIPSPARSE_FORMAT_SLICED_ELL.
*
* \note
* Only the \ref hipsparseSpMV_bufferSize and \ref hipsparseSpMV routines are non-blocking and executed asynchronously
* with respect to the host. They can return before the actual computation has finished. The \ref hipsparseSpMV_preprocess
* routine is blocking with respect to the host.
*
* \note
* Only the \ref hipsparseSpMV_bufferSize and the \ref hipsparseSpMV routines support execution in a hipGraph context.
* The \ref hipsparseSpMV_preprocess stage does not support hipGraph.
*
* @param[in]
* handle handle to the hipSPARSE library context queue.
* @param[in]
* opA matrix operation type.
* @param[in]
* alpha scalar \f$\alpha\f$.
* @param[in]
* matA matrix descriptor.
* @param[in]
* vecX vector descriptor.
* @param[in]
* beta scalar \f$\beta\f$.
* @param[inout]
* vecY vector descriptor.
* @param[in]
* computeType floating point precision for the SpMV computation.
* @param[in]
* alg SpMV algorithm for the SpMV computation.
* @param[out]
* externalBuffer temporary storage buffer allocated by the user.
*
* \retval HIPSPARSE_STATUS_SUCCESS the operation completed successfully.
* \retval HIPSPARSE_STATUS_INVALID_VALUE \p handle, \p alpha, \p matA, \p x, \p beta, \p y, or
* \p externalBuffer pointer is invalid or if \p opA, \p computeType, \p alg is incorrect.
* \retval HIPSPARSE_STATUS_NOT_SUPPORTED \p computeType or \p alg is
* currently not supported.
*/
#if(!defined(CUDART_VERSION) || CUDART_VERSION >= 12000)
HIPSPARSE_EXPORT
hipsparseStatus_t hipsparseSpMV(hipsparseHandle_t handle,
hipsparseOperation_t opA,
const void* alpha,
hipsparseConstSpMatDescr_t matA,
hipsparseConstDnVecDescr_t vecX,
const void* beta,
const hipsparseDnVecDescr_t vecY,
hipDataType computeType,
hipsparseSpMVAlg_t alg,
void* externalBuffer);
#elif(CUDART_VERSION > 10010 || (CUDART_VERSION == 10010 && CUDART_10_1_UPDATE_VERSION == 1))
HIPSPARSE_EXPORT
hipsparseStatus_t hipsparseSpMV(hipsparseHandle_t handle,
hipsparseOperation_t opA,
const void* alpha,
const hipsparseSpMatDescr_t matA,
const hipsparseDnVecDescr_t vecX,
const void* beta,
const hipsparseDnVecDescr_t vecY,
hipDataType computeType,
hipsparseSpMVAlg_t alg,
void* externalBuffer);
#endif
#ifdef __cplusplus
}
#endif
#endif /* HIPSPARSE_SPMV_H */