mkl_sparse_set_sv_hint
mkl_sparse_set_sv_hint
Provides estimate of number and type of upcoming triangular system solver operations.
Syntax
sparse_status_t mkl_sparse_set_sv_hint
(
const sparse_matrix_t
A
,
const sparse_operation_t
operation
,
const struct
matrix_descr
descr
,
const MKL_INT
expected_calls
);
Include Files
- mkl_spblas.h
Description
The
mkl_sparse_set_sv_hint
routine provides an estimate of the number of upcoming triangular system solver operations and type of these operations for performance optimization.Product and Performance Information
|
---|
Performance varies by use, configuration and other factors. Learn more at
www.Intel.com/PerformanceIndex.
Notice revision #20201201
|
Input Parameters
- operation
- Specifies operationop()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
- descr
- Structurespecifying sparse matrix properties.sparse_matrix_type_ttype- Specifies the type of a sparse matrix:
- SPARSE_MATRIX_TYPE_GENERAL
- The matrix is processed as is.
- SPARSE_MATRIX_TYPE_SYMMETRIC
- The matrix is symmetric (only the requested triangle is processed).
- SPARSE_MATRIX_TYPE_HERMITIAN
- The matrix is Hermitian (only the requested triangle is processed).
- SPARSE_MATRIX_TYPE_TRIANGULAR
- The matrix is triangular (only the requested triangle is processed).
- SPARSE_MATRIX_TYPE_DIAGONAL
- The matrix is diagonal (only diagonal elements are processed).
- SPARSE_MATRIX_TYPE_BLOCK_TRIANGULAR
- The matrix is block-triangular (only requested triangle is processed). Applies to BSR format only.
- SPARSE_MATRIX_TYPE_BLOCK_DIAGONAL
- The matrix is block-diagonal (only diagonal blocks are processed). Applies to BSR format only.
sparse_fill_mode_tmode- Specifies the triangular matrix part for symmetric, Hermitian, triangular, and block-triangular matrices:- SPARSE_FILL_MODE_LOWER
- The lower triangular matrix part is processed.
- SPARSE_FILL_MODE_UPPER
- The upper triangular matrix part is processed.
sparse_diag_type_tdiag- Specifies diagonal type for non-general matrices:- SPARSE_DIAG_NON_UNIT
- Diagonal elements might not be equal to one.
- SPARSE_DIAG_UNIT
- Diagonal elements are equal to one.
- expected_calls
- Number of expected calls to execution routine.
Output Parameters
- A
- Handle containing internal data.
Return Values
The function returns a 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.