Visible to Intel only — GUID: GUID-05DC7B5F-F9E1-4206-AD05-C57E6322DA3D
Visible to Intel only — GUID: GUID-05DC7B5F-F9E1-4206-AD05-C57E6322DA3D
mkl_sparse_set_mv_hint
Provides estimate of number and type of upcoming matrix-vector operations.
Syntax
stat = mkl_sparse_set_mv_hint (A, operation, descr, expected_calls)
Include Files
- mkl_spblas.f90
Description
Use the mkl_sparse_set_mv_hint routine to provide the Inspector-executor Sparse BLAS API an estimate of the number of upcoming matrix-vector multiplication operations for performance optimization, and specify whether or not to perform an operation on the matrix.
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
-
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.
- descr
-
MATRIX_DESCR.
Descriptor specifying sparse matrix properties.
type - 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.
mode - 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.
diag - 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
-
C_INT.
Number of expected calls to execution routine.
Output Parameters
- A
-
SPARSE_MATRIX_T.
Handle containing internal data.
- 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.