Visible to Intel only — GUID: GUID-6CAF3BC1-ADCF-4967-9A1C-546E432E9ECA
Visible to Intel only — GUID: GUID-6CAF3BC1-ADCF-4967-9A1C-546E432E9ECA
mkl_?coosm
Solves a system of linear matrix equations for a sparse matrix in the coordinate format (deprecated).
Syntax
call mkl_scoosm(transa, m, n, alpha, matdescra, val, rowind, colind, nnz, b, ldb, c, ldc)
call mkl_dcoosm(transa, m, n, alpha, matdescra, val, rowind, colind, nnz, b, ldb, c, ldc)
call mkl_ccoosm(transa, m, n, alpha, matdescra, val, rowind, colind, nnz, b, ldb, c, ldc)
call mkl_zcoosm(transa, m, n, alpha, matdescra, val, rowind, colind, nnz, b, ldb, c, ldc)
Include Files
- mkl.fi
Description
This routine is deprecated. Use mkl_sparse_?_trsmfrom the Intel® oneAPI Math Kernel Library (oneMKL) Inspector-executor Sparse BLAS interface instead.
The mkl_?coosm routine solves a system of linear equations with matrix-matrix operations for a sparse matrix in the coordinate format:
C := alpha*inv(A)*B
or
C := alpha*inv(AT)*B,
where:
alpha is scalar, B and C are dense matrices, A is a sparse upper or lower triangular matrix with unit or non-unit main diagonal, AT is the transpose of A.
This routine supports a coordinate format both with one-based indexing and zero-based indexing.
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.
- transa
-
CHARACTER*1. Specifies the system of linear equations.
If transa = 'N' or 'n', then the matrix-matrix product is computed as C := alpha*inv(A)*B
If transa = 'T' or 't' or 'C' or 'c', then the matrix-vector product is computed as C := alpha*inv(AT)*B,
- m
-
INTEGER. Number of rows of the matrix A.
- n
-
INTEGER. Number of columns of the matrix C.
- alpha
-
REAL for mkl_scoosm.
DOUBLE PRECISION for mkl_dcoosm.
COMPLEX for mkl_ccoosm.
DOUBLE COMPLEX for mkl_zcoosm.
Specifies the scalar alpha.
- matdescra
-
CHARACTER. Array of six elements, specifies properties of the matrix used for operation. Only first four array elements are used, their possible values are given in Table “Possible Values of the Parameter matdescra (descra)”. Possible combinations of element values of this parameter are given in Table “Possible Combinations of Element Values of the Parameter matdescra”.
- val
-
REAL for mkl_scoosm.
DOUBLE PRECISION for mkl_dcoosm.
COMPLEX for mkl_ccoosm.
DOUBLE COMPLEX for mkl_zcoosm.
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.
- b
-
REAL for mkl_scoosm.
DOUBLE PRECISION for mkl_dcoosm.
COMPLEX for mkl_ccoosm.
DOUBLE COMPLEX for mkl_zcoosm.
Array, size ldb by n for one-based indexing, and (m, ldb) for zero-based indexing.
Before entry the leading m-by-n part of the array b must contain the matrix B.
- ldb
-
INTEGER. Specifies the leading dimension of b for one-based indexing, and the second dimension of b for zero-based indexing, as declared in the calling (sub)program.
- ldc
-
INTEGER. Specifies the leading dimension of c for one-based indexing, and the second dimension of c for zero-based indexing, as declared in the calling (sub)program.
Output Parameters
- c
-
REAL for mkl_scoosm.
DOUBLE PRECISION for mkl_dcoosm.
COMPLEX for mkl_ccoosm.
DOUBLE COMPLEX for mkl_zcoosm.
Array, size ldc by n for one-based indexing, and (m, ldc) for zero-based indexing.
The leading m-by-n part of the array c contains the output matrix C.
Interfaces
FORTRAN 77:
SUBROUTINE mkl_scoosm(transa, m, n, alpha, matdescra, val, rowind, colind, nnz, b, ldb, c, ldc)
CHARACTER*1 transa
CHARACTER matdescra(*)
INTEGER m, n, ldb, ldc, nnz
INTEGER rowind(*), colind(*)
REAL alpha
REAL val(*), b(ldb,*), c(ldc,*)
SUBROUTINE mkl_dcoosm(transa, m, n, alpha, matdescra, val, rowind, colind, nnz, b, ldb, c, ldc)
CHARACTER*1 transa
CHARACTER matdescra(*)
INTEGER m, n, ldb, ldc, nnz
INTEGER rowind(*), colind(*)
DOUBLE PRECISION alpha
DOUBLE PRECISION val(*), b(ldb,*), c(ldc,*)
SUBROUTINE mkl_ccoosm(transa, m, n, alpha, matdescra, val, rowind, colind, nnz, b, ldb, c, ldc)
CHARACTER*1 transa
CHARACTER matdescra(*)
INTEGER m, n, ldb, ldc, nnz
INTEGER rowind(*), colind(*)
COMPLEX alpha
COMPLEX val(*), b(ldb,*), c(ldc,*)
SUBROUTINE mkl_zcoosm(transa, m, n, alpha, matdescra, val, rowind, colind, nnz, b, ldb, c, ldc)
CHARACTER*1 transa
CHARACTER matdescra(*)
INTEGER m, n, ldb, ldc, nnz
INTEGER rowind(*), colind(*)
DOUBLE COMPLEX alpha
DOUBLE COMPLEX val(*), b(ldb,*), c(ldc,*)