Visible to Intel only — GUID: GUID-B8752CF7-AE4B-4D34-806F-6FC06DC73D6A
Visible to Intel only — GUID: GUID-B8752CF7-AE4B-4D34-806F-6FC06DC73D6A
mkl_?coosymv
Computes matrix - vector product of a sparse symmetrical matrix stored in the coordinate format with one-based indexing (deprecated).
Syntax
call mkl_scoosymv(uplo, m, val, rowind, colind, nnz, x, y)
call mkl_dcoosymv(uplo, m, val, rowind, colind, nnz, x, y)
call mkl_ccoosymv(uplo, m, val, rowind, colind, nnz, x, y)
call mkl_zcoosymv(uplo, m, val, rowind, colind, nnz, x, y)
Include Files
- mkl.fi
Description
This routine is deprecated. Use mkl_sparse_?_mvfrom the Intel® oneAPI Math Kernel Library (oneMKL) Inspector-executor Sparse BLAS interface instead.
The mkl_?coosymv routine performs a matrix-vector operation defined as
y := A*x
where:
x and y are vectors,
A is an upper or lower triangle of the symmetrical sparse matrix in the coordinate format.
This routine supports only one-based indexing of the input arrays.
Input Parameters
Parameter descriptions are common for all implemented interfaces with the exception of data types that refer here to the FORTRAN 77 standard types. Data types specific to the different interfaces are described in the section "Interfaces" below.
- uplo
-
CHARACTER*1. Specifies whether the upper or low triangle of the matrix A is used.
If uplo = 'U' or 'u', then the upper triangle of the matrix A is used.
If uplo = 'L' or 'l', then the low triangle of the matrix A is used.
- m
-
INTEGER. Number of rows of the matrix A.
- val
-
REAL for mkl_scoosymv.
DOUBLE PRECISION for mkl_dcoosymv.
COMPLEX for mkl_ccoosymv.
DOUBLE COMPLEX for mkl_zcoosymv.
Array of length nnz, contains non-zero elements of the matrix A in the arbitrary order.
Refer to values array description in Coordinate Format for more details.
- rowind
-
INTEGER. Array of length nnz, contains the row indices for each non-zero element of the matrix A.
Refer to rows array description in Coordinate Format for more details.
- colind
-
INTEGER. Array of length nnz, contains the column indices for each non-zero element of the matrix A. Refer to columns array description in Coordinate Format for more details.
- nnz
-
INTEGER. Specifies the number of non-zero element of the matrix A.
Refer to nnz description in Coordinate Format for more details.
- x
-
REAL for mkl_scoosymv.
DOUBLE PRECISION for mkl_dcoosymv.
COMPLEX for mkl_ccoosymv.
DOUBLE COMPLEX for mkl_zcoosymv.
Array, size is m.
On entry, the array x must contain the vector x.
Output Parameters
- y
-
REAL for mkl_scoosymv.
DOUBLE PRECISION for mkl_dcoosymv.
COMPLEX for mkl_ccoosymv.
DOUBLE COMPLEX for mkl_zcoosymv.
Array, size at least m.
On exit, the array y must contain the vector y.
Interfaces
FORTRAN 77:
SUBROUTINE mkl_scoosymv(uplo, m, val, rowind, colind, nnz, x, y)
CHARACTER*1 uplo
INTEGER m, nnz
INTEGER rowind(*), colind(*)
REAL val(*), x(*), y(*)
SUBROUTINE mkl_dcoosymv(uplo, m, val, rowind, colind, nnz, x, y)
CHARACTER*1 uplo
INTEGER m, nnz
INTEGER rowind(*), colind(*)
DOUBLE PRECISION val(*), x(*), y(*)
SUBROUTINE mkl_cdcoosymv(uplo, m, val, rowind, colind, nnz, x, y)
CHARACTER*1 uplo
INTEGER m, nnz
INTEGER rowind(*), colind(*)
COMPLEX val(*), x(*), y(*)
SUBROUTINE mkl_zcoosymv(uplo, m, val, rowind, colind, nnz, x, y)
CHARACTER*1 uplo
INTEGER m, nnz
INTEGER rowind(*), colind(*)
DOUBLE COMPLEX val(*), x(*), y(*)