/*! \file */
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#ifndef HIPSPARSE_CSRMV_H
#define HIPSPARSE_CSRMV_H

#ifdef __cplusplus
extern "C" {
#endif

#if(!defined(CUDART_VERSION) || CUDART_VERSION < 11000)
/*! \ingroup level2_module
*  \brief Sparse matrix vector multiplication using CSR storage format
*
*  \details
*  \p hipsparseXcsrmv multiplies the scalar \f$\alpha\f$ with a sparse \f$m \times n\f$
*  matrix, defined in CSR storage format, and 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 transA == HIPSPARSE_OPERATION_NON_TRANSPOSE} \\
*        A^T, & \text{if transA == HIPSPARSE_OPERATION_TRANSPOSE} \\
*        A^H, & \text{if transA == HIPSPARSE_OPERATION_CONJUGATE_TRANSPOSE}
*    \end{array}
*    \right.
*  \f]
*
*  \code{.c}
*      for(i = 0; i < m; ++i)
*      {
*          y[i] = beta * y[i];
*
*          for(j = csrRowPtr[i]; j < csrRowPtr[i + 1]; ++j)
*          {
*              y[i] = y[i] + alpha * csrVal[j] * x[csrColInd[j]];
*          }
*      }
*  \endcode
*
*  \note
*  This function is non blocking and executed asynchronously with respect to the host.
*  It may return before the actual computation has finished.
*
*  \note
*  Currently, only \p transA == \ref HIPSPARSE_OPERATION_NON_TRANSPOSE is supported.
*
*  @param[in]
*  handle      handle to the hipsparse library context queue.
*  @param[in]
*  transA      matrix operation type.
*  @param[in]
*  m           number of rows of the sparse CSR matrix.
*  @param[in]
*  n           number of columns of the sparse CSR matrix.
*  @param[in]
*  nnz         number of non-zero entries of the sparse CSR matrix.
*  @param[in]
*  alpha       scalar \f$\alpha\f$.
*  @param[in]
*  descrA      descriptor of the sparse CSR matrix. Currently, only
*              \ref HIPSPARSE_MATRIX_TYPE_GENERAL is supported.
*  @param[in]
*  csrSortedValA array of \p nnz elements of the sparse CSR matrix.
*  @param[in]
*  csrSortedRowPtrA array of \p m+1 elements that point to the start
*              of every row of the sparse CSR matrix.
*  @param[in]
*  csrSortedColIndA array of \p nnz elements containing the column indices of the sparse
*              CSR matrix.
*  @param[in]
*  x           array of \p n elements (\f$op(A) == A\f$) or \p m elements
*              (\f$op(A) == A^T\f$ or \f$op(A) == A^H\f$).
*  @param[in]
*  beta        scalar \f$\beta\f$.
*  @param[inout]
*  y           array of \p m elements (\f$op(A) == A\f$) or \p n elements
*              (\f$op(A) == A^T\f$ or \f$op(A) == A^H\f$).
*
*  \retval     HIPSPARSE_STATUS_SUCCESS the operation completed successfully.
*  \retval     HIPSPARSE_STATUS_INVALID_VALUE \p handle, \p m, \p n or \p nnz, \p descr,
*              \p alpha, \p csrSortedValA, \p csrSortedRowPtrA, \p csrSortedColIndA, \p x,
*              \p beta or \p y is invalid.
*  \retval     HIPSPARSE_STATUS_ARCH_MISMATCH the device is not supported.
*  \retval     HIPSPARSE_STATUS_NOT_SUPPORTED
*              \ref hipsparseMatrixType_t != \ref HIPSPARSE_MATRIX_TYPE_GENERAL.
*
*  \par Example
*  \snippet example_hipsparse_csrmv.cpp doc example
*/
/**@{*/
DEPRECATED_CUDA_10000("The routine will be removed in CUDA 11")
HIPSPARSE_EXPORT
hipsparseStatus_t hipsparseScsrmv(hipsparseHandle_t         handle,
                                  hipsparseOperation_t      transA,
                                  int                       m,
                                  int                       n,
                                  int                       nnz,
                                  const float*              alpha,
                                  const hipsparseMatDescr_t descrA,
                                  const float*              csrSortedValA,
                                  const int*                csrSortedRowPtrA,
                                  const int*                csrSortedColIndA,
                                  const float*              x,
                                  const float*              beta,
                                  float*                    y);
DEPRECATED_CUDA_10000("The routine will be removed in CUDA 11")
HIPSPARSE_EXPORT
hipsparseStatus_t hipsparseDcsrmv(hipsparseHandle_t         handle,
                                  hipsparseOperation_t      transA,
                                  int                       m,
                                  int                       n,
                                  int                       nnz,
                                  const double*             alpha,
                                  const hipsparseMatDescr_t descrA,
                                  const double*             csrSortedValA,
                                  const int*                csrSortedRowPtrA,
                                  const int*                csrSortedColIndA,
                                  const double*             x,
                                  const double*             beta,
                                  double*                   y);
DEPRECATED_CUDA_10000("The routine will be removed in CUDA 11")
HIPSPARSE_EXPORT
hipsparseStatus_t hipsparseCcsrmv(hipsparseHandle_t         handle,
                                  hipsparseOperation_t      transA,
                                  int                       m,
                                  int                       n,
                                  int                       nnz,
                                  const hipComplex*         alpha,
                                  const hipsparseMatDescr_t descrA,
                                  const hipComplex*         csrSortedValA,
                                  const int*                csrSortedRowPtrA,
                                  const int*                csrSortedColIndA,
                                  const hipComplex*         x,
                                  const hipComplex*         beta,
                                  hipComplex*               y);
DEPRECATED_CUDA_10000("The routine will be removed in CUDA 11")
HIPSPARSE_EXPORT
hipsparseStatus_t hipsparseZcsrmv(hipsparseHandle_t         handle,
                                  hipsparseOperation_t      transA,
                                  int                       m,
                                  int                       n,
                                  int                       nnz,
                                  const hipDoubleComplex*   alpha,
                                  const hipsparseMatDescr_t descrA,
                                  const hipDoubleComplex*   csrSortedValA,
                                  const int*                csrSortedRowPtrA,
                                  const int*                csrSortedColIndA,
                                  const hipDoubleComplex*   x,
                                  const hipDoubleComplex*   beta,
                                  hipDoubleComplex*         y);
/**@}*/
#endif

#ifdef __cplusplus
}
#endif

#endif /* HIPSPARSE_CSRMV_H */
