KmlDss(Spd/Hpd)Get?II

获取与handle关联的整型值。

接口定义

C Interface：

int KmlDssSpdGetSII(KmlSolverTask **pHandle, enum KmlSolverParam param, int *value, int nvalue);

int KmlDssSpdGetDII(KmlSolverTask **pHandle, enum KmlSolverParam param, int *value, int nvalue);

int KmlDssHpdGetCII(KmlSolverTask **pHandle, enum KmlSolverParam param, int *value, int nvalue);

int KmlDssHpdGetZII(KmlSolverTask **pHandle, enum KmlSolverParam param, int *value, int nvalue);

参数

参数名	类型	描述	输入/输出
pHandle	KmlSolverTask **	求解器句柄，pHandle不可为空指针。	输入
param	enum KmlSolverParam	当前仅支持KMLSS_REFINEMENT_STEPS，表示迭代优化次数。	输入
value	int	直接求解相关参数数组。	输出
nvalue	int	value数组元素个数，目前要求为1。	输入

返回值

返回值	类型	描述
KMLSS_NO_ERROR	int	正常执行。
KMLSS_NULL_ARGUMENT	int	pHandle或data为空指针。
KMLSS_BAD_HANDLE	int	pHandle格式存在问题。
KMLSS_BAD_DATA_SIZE	int	用户设定的value数组长度nvalue不合理，即不为1。
KMLSS_BAD_SELECTOR	int	用户的KML_SOLVER_PARAM输入当前不支持，或在求解过程中不存在。

依赖

#include "kml_dss.h"或#include "kml_solver.h"

示例

C Interface：

int n = 2;
int ia[3] = {0,2,4};
int ja[4] = {0,1,0,1};
double a[4] = {2,1,1,2};
double b[2] = {3,1};
double x[2];

int nrhs = 1;
int ldx = n, ldb = n;

KmlSolverTask *handle;
int ierr = KmlDssSpdInitDI(&handle, n, a, ja, ia);
if (ierr != 0) {
        printf("\nERROR in KmlDssSpdInitDI: %d", ierr);
}
ierr = KmlDssSpdAnalyzeDI(&handle);
if (ierr != 0) {
        printf("\nERROR in KmlDssSpdAnalyzeDI: %d", ierr);
}
ierr = KmlDssSpdFactorizeDI(&handle);
if (ierr != 0) {
        printf("\nERROR in KmlDssSpdFactorizeDI: %d", ierr);
}

double tolerance = 1.e-12;
ierr = KmlDssSpdSetDID(&handle, KMLSS_REFINEMENT_TOLERANCE_LEVEL, &tolerance, 1);
if (ierr != 0) {
        printf("\nERROR in KmlDssSpdSetDID: %d", ierr);
}
int nsteps = 2;
ierr = KmlDssSpdSetDII(&handle, KMLSS_REFINEMENT_MAX_STEPS, &nsteps, 1);
if (ierr != 0) {
        printf("\nERROR in KmlDssSpdSetDII: %d", ierr);
}

ierr = KmlDssSpdSolveDI(&handle, nrhs, x, ldx, b, ldb);
if (ierr != 0) {
        printf("\nERROR in KmlDssSpdSolveDI: %d", ierr);
}

printf("\n");
int nstep;
ierr = KmlDssSpdGetDII(&handle, KMLSS_REFINEMENT_STEPS, &nstep, 1);
if (ierr != 0) {
        printf("\nERROR in KmlDssSpdGetDII: %d", ierr);
}
printf("REFINEMENT_STEP = %d\n", nstep);

运行结果：

REFINEMENT_STEP = 1

父主题： LLT/LLH