mkl_sparse_?

Syntax

stat = mkl_sparse_s_spmmd (operation, A, B, layout, C, ldc)

stat = mkl_sparse_d_spmmd (operation, A, B, layout, C, ldc)

stat = mkl_sparse_c_spmmd (operation, A, B, layout, C, ldc)

stat = mkl_sparse_z_spmmd (operation, A, B, layout, C, ldc)

Include Files

mkl_spblas.f90

Description

The mkl_sparse_?_spmmd routine performs a matrix-matrix operation:

C := op(A)*B

where A and B are sparse matrices, op is a matrix modifier for matrix A, and C is a dense matrix.

Note

This routine is not supported for sparse matrices in the COO format. For sparse matrices in BSR format, these combinations of (indexing, block_layout) are supported:

(SPARSE_INDEX_BASE_ZERO, SPARSE_LAYOUT_ROW_MAJOR)
(SPARSE_INDEX_BASE_ONE, SPARSE_LAYOUT_COLUMN_MAJOR)

Input Parameters

operation

C_INT.

Specifies operation op() on input matrix.

`SPARSE_OPERATION_NON_TRANSPOSE`	Non-transpose, `op(A) = A`.
`SPARSE_OPERATION_TRANSPOSE`	Transpose, `op(A) = A^T`.
`SPARSE_OPERATION_CONJUGATE_TRANSPOSE`	Conjugate transpose, `op(A) = A^H`.

A

SPARSE_MATRIX_T.

Handle which contains the sparse matrix A.

B

SPARSE_MATRIX_T.

Handle which contains the sparse matrix B.

layout

C_INT.

Describes the storage scheme for the dense matrix:

`SPARSE_LAYOUT_COLUMN_MAJOR`	Storage of elements uses column major layout.
`SPARSE_LAYOUT_ROW_MAJOR`	Storage of elements uses row major layout.

ldC

C_INT.

Leading dimension of matrix C.

Output Parameters

C

C_FLOAT for mkl_sparse_s_spmmd

C_DOUBLE for mkl_sparse_d_spmmd

C_FLOAT_COMPLEX for mkl_sparse_c_spmmd

C_DOUBLE_COMPLEX for mkl_sparse_z_spmmd

Resulting dense matrix.

stat

INTEGER

Value indicating whether the operation was successful or not, and why:

`SPARSE_STATUS_SUCCESS`	The operation was successful.
`SPARSE_STATUS_NOT_INITIALIZED`	The routine encountered an empty handle or matrix array.
`SPARSE_STATUS_ALLOC_FAILED`	Internal memory allocation failed.
`SPARSE_STATUS_INVALID_VALUE`	The input parameters contain an invalid value.
`SPARSE_STATUS_EXECUTION_FAILED`	Execution failed.
`SPARSE_STATUS_INTERNAL_ERROR`	An error in algorithm implementation occurred.
`SPARSE_STATUS_NOT_SUPPORTED`	The requested operation is not supported.