KmlDssSymGet?II
获取与handle关联的整型值。
接口定义
C Interface：
int KmlDssSymGetSII(KmlSolverTask **pHandle, enum KmlSolverParam param, int *value, int nvalue);
int KmlDssSymGetDII(KmlSolverTask **pHandle, enum KmlSolverParam param, int *value, int nvalue);
int KmlDssSymGetCII(KmlSolverTask **pHandle, enum KmlSolverParam param, int *value, int nvalue);
int KmlDssSymGetZII(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 = 8;
int ia[9] = {0, 2, 4, 6, 7, 8, 9, 10, 11};
int ja[11] = {0, 7, 1, 6, 2, 5, 3, 4, 5, 6, 7};
double a[11] = {1.0, 2.0, -2.0, 3.0, 3.0, 4.0, -4.0, 5.0, -6.0, 7.0, 8.0};
double b[8] = {3.0, 1.0, 7.0, -4.0, 5.0, -2.0, 10.0, 10.0};
double x[8];
int nrhs = 1;
int ldx = n, ldb = n;
KmlSolverTask *handle;
int ierr = KmlDssSymInitDI(&handle, n, a, ja, ia);
if (ierr != 0) {
printf("\nERROR in KmlDssSymInitDI: %d", ierr);
}
ierr = KmlDssSymAnalyzeDI(&handle);
if (ierr != 0) {
printf("\nERROR in KmlDssSymAnalyzeDI: %d", ierr);
}
ierr = KmlDssSymFactorizeDI(&handle);
if (ierr != 0) {
printf("\nERROR in KmlDssSymFactorizeDI: %d", ierr);
}
double tolerance = 1.e-12;
ierr = KmlDssSymSetDID(&handle, KMLSS_REFINEMENT_TOLERANCE_LEVEL, &tolerance, 1);
if (ierr != 0) {
printf("\nERROR in KmlDssSymSetDID: %d", ierr);
}
int nsteps = 2;
ierr = KmlDssSymSetDII(&handle, KMLSS_REFINEMENT_MAX_STEPS, &nsteps, 1);
if (ierr != 0) {
printf("\nERROR in KmlDssSymSetDII: %d", ierr);
}
ierr = KmlDssSymSolveDI(&handle, nrhs, x, ldx, b, ldb);
if (ierr != 0) {
printf("\nERROR in KmlDssSymSolveDI: %d", ierr);
}
printf("\n");
int nstep;
ierr = KmlDssSymGetDII(&handle, KMLSS_REFINEMENT_STEPS, &nstep, 1);
if (ierr != 0) {
printf("\nERROR in KmlDssSymGetDII: %d", ierr);
}
printf("REFINEMENT_STEP = %d\n", nstep);
REFINEMENT_STEP = 1