Visible to Intel only — GUID: GUID-FDC8230D-C816-4457-8588-07122BADE984
Visible to Intel only — GUID: GUID-FDC8230D-C816-4457-8588-07122BADE984
mkl_sparse_?_spmmd
Computes the product of two sparse matrices and stores the result as a dense matrix.
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.
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) = AT.
SPARSE_OPERATION_CONJUGATE_TRANSPOSE
Conjugate transpose, op(A) = AH.
- 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.