KmlScadss(SPD/HPD)Get?I

Obtain handle-related integer values.

Interface Definition

C interface:

int KmlScadssSpdGetSI(KmlScaSolverTask **pHandle, enum KML_SOLVER_PARAM param, int64_t *value, int nvalue);

int KmlScadssSpdGetDI(KmlScaSolverTask **pHandle, enum KML_SOLVER_PARAM param, int64_t *value, int nvalue);

int KmlScadssHpdGetCI(KmlScaSolverTask **pHandle, enum KML_SOLVER_PARAM param, int64_t *value, int nvalue);

int KmlScadssHpdGetZI(KmlScaSolverTask **pHandle, enum KML_SOLVER_PARAM param, int64_t *value, int nvalue);

Parameters

Parameter	Type	Description	Input/Output
pHandle	KmlScaSolverTask	Solver handle. pHandle cannot be a null pointer.	Input/Output
param	enum KML_SOLVER_PARAM	KMLSS_FILL_IN indicates the number of non-zero element values that are filled in. KMLSS_PERM indicates the matrix row and column sequence, which is not supported currently. KMLSS_ITER_REF_STEPS indicates the number of iteration optimization times, which is not supported currently.	Input
value	int64_t	Directly solves the related parameter array.	Input
nvalue	int	Number of elements in the value array	Input

Return Value

Return Value	Type	Description
KMLSS_NO_ERROR	int	The execution is successful.
KMLSS_NULL_ARGUMENT	int	The phandle pointer is null.
KMLSS_BAD_HANDLE	int	The phandle format is converted incorrectly.
KMLSS_BAD_DATA_SIZE	int	The KMLSS_FILL_IN array length (nvalue) is incorrectly set.
KMLSS_INTERNAL_ERROR	int	A null pointer is returned for internal data, and KMLSS_FILL_IN fails to be obtained.
KMLSS_BAD_SELECTOR	int	The input value of KML_SOLVER_PARAM is not supported currently or does not exist during the analysis.

Dependencies

#include "kml_scadss.h"

Examples

C interface:

MPI_Init(NULL, NULL);
int size, rank;
MPI_Comm_size(MPI_COMM_WORLD, &size);// Obtain the total number of processes.
MPI_Comm_rank(MPI_COMM_WORLD, &rank);// Obtain the current process ID.

int n = 8;
int ia[9] = {0, 3, 7, 9, 11, 13, 15, 16, 17};
int ja[17] = {0, 3, 4, 1, 2, 3, 5, 2, 7, 3, 6, 4, 5, 5, 7, 6, 7};
double a[17] = {1.0, 1.0, 2.0, 9.0, 2.0, 1.0, -3.0, 3.0, 2.0, 9.0, -5.0, 6.0, 1.0, 4.0, 1.0, 7.0, 2.0};
double b[8] = {4.0, 9.0, 7.0, 6.0, 9.0, 3.0, 2.0, 5.0};
double x[8];
KmlScasolverTask* matrix_handle = NULL;
int ierr = KmlScadssSpdInitDI(&matrix_handle, n, a, ja, ia, MPI_COMM_WORLD);
ierr = KmlScadssSpdAnalyzeDI(&matrix_handle);

int nrhs = 1;
int ldx=n, ldb=n;
ierr = KmlScadssSpdSolveDI(&matrix_handle, nrhs, x, ldx, b, ldb);
if (rank == 0) {
    int64_t nnz;
    ierr = KmlScadssSpdGetDI(&matrix_handle, KMLSS_FILL_IN, &nnz, 1);
    printf("NNZ = %ld\n", nnz);
}

Execution result:

NNZ = 40

Parent topic: SCADSS-LLT/LLH