csc_dzusadd csc_zusadd csc_zussv_sor csr_dzusadd csr_zusadd csr_zussv_sor z_csx_diag z_csx_sort z_dense_nnz

csr_dzusadd() void csr_dzusadd ( int  m, int  n, doublecomplex  alpha, const double  val_a[], const int  rowptr_a[], const int  colind_a[], int  base_a, double  beta, const double  val_b[], const int  rowptr_b[], const int  colind_b[], int  base_b, doublecomplex  val_c[], int  rowptr_c[], int  colind_c[], int  base_c, int  nnz_c, int *  info  ) C <- αA + βB (α and C are complex numbers) (CSR) Purpose This routine performs the following matrix-matrix operation for sparse matrices A, B and C in CSR format. C <- α*A + β*B where α and β are scalars, and A, B and C are m x n sparse matrices. α and C are complex numbers. Parameters [in] m Number of rows of the matrix. (m >= 0) (if m = 0, returns without computation) [in] n Number of columns of the matrix. (n >= 0) (if n = 0, returns without computation) [in] alpha Scalar alpha. [in] val_a[] Array val_a[l_val_a] (l_val_a >= nnz_a) (nnz_a is the number of nonzero elements of A) Values of nonzero elements of input matrix A. [in] rowptr_a[] Array rowptr_a[l_rowptr_a] (l_rowptr_a >= n + 1) Row pointers of input matrix A. [in] colind_a[] Array colind_a[l_colind_a] (l_colind_a >= nnz_a) (nnz_a is the number of nonzero elements of A) Column indices of input matrix A. [in] base_a Indexing of rowptr_a[] and colind_a[]. = 0: Zero-based (C style) indexing: Starting index is 0. = 1: One-based (Fortran style) indexing: Starting index is 1. [in] beta Scalar beta. [in] val_b[] Array val_b[l_val_b] (l_val_b >= nnz_b) (nnz_b is the number of nonzero elements of B) Values of nonzero elements of input matrix B. [in] rowptr_b[] Array rowptr_b[l_rowptr_b] (l_rowptr_b >= n + 1) Row pointers of input matrix B. [in] colind_b[] Array colind_b[l_colind_b] (l_colind_b >= nnz_b) (nnz_b is the number of nonzero elements of B) Column indices of input matrix B. [in] base_b Indexing of rowptr_b[] and colind_b[]. = 0: Zero-based (C style) indexing: Starting index is 0. = 1: One-based (Fortran style) indexing: Starting index is 1. [out] val_c[] Array val_c[l_val_c] Values of nonzero elements of output matrix C. [out] rowptr_c[] Array rowptr_c[l_rowptr_c] (l_rowptr_c >= n + 1) Row pointers of output matrix C. [out] colind_c[] Array colind_c[l_colind_c] Column indices of output matrix C. [in] base_c Indexing of rowptr_c[] and colind_c[]. = 0: Zero-based (C style) indexing: Starting index is 0. = 1: One-based (Fortran style) indexing: Starting index is 1. [in] nnz_c Enter min(l_val_c, l_colind_c). nnz_c must be not less than the number of nonzero elements of α*A + β*B. [out] info = 0: Successful exit. = i < 0: The (-i)-th argument is invalid. = j > 0: nnz_c is too small. Exceeded during computing j-th row.