KmlDssSymGet?IL
获取与handle关联的长整型值。
接口定义
C Interface:
int KmlDssSymGetSIL(KmlSolverTask **pHandle, enum KmlSolverParam param, int64_t *value, int nvalue);
int KmlDssSymGetDIL(KmlSolverTask **pHandle, enum KmlSolverParam param, int64_t *value, int nvalue);
int KmlDssSymGetCIL(KmlSolverTask **pHandle, enum KmlSolverParam param, int64_t *value, int nvalue);
int KmlDssSymGetZIL(KmlSolverTask **pHandle, enum KmlSolverParam param, int64_t *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_FILL_IN,表示填入数目。 |
输入 |
value |
int64_t |
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。 |
KMLSS_INTERNAL_ERROR |
int |
pHandle状态异常,KMLSS_FILL_IN获取失败。 |
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); } ierr = KmlDssSymSolveDI(&handle, nrhs, x, ldx, b, ldb); if (ierr != 0) { printf("\nERROR in KmlDssSymSolveDI: %d", ierr); } int64_t nnz; ierr = KmlDssSymGetDIL(&handle, KMLSS_FILL_IN, &nnz, 1); if (ierr != 0) { printf("\nERROR in KmlDssSymGetDIL: %d", ierr); } printf("NNZ = %d\n", nnz);
NNZ = 32