KmlIssGcrInit?I
Initialize the data structure and associate the coefficient matrix provided by the user to the solution system.
Interface Definition
C interface:
int KmlIssGcrInitSI(KmlSolverTask **handle, int n, const float *a, const int *ja, const int *ia);
int KmlIssGcrInitDI(KmlSolverTask **handle, int n, const double *a, const int *ja, const int *ia);
Parameters
Parameter |
Type |
Description |
Input/Output |
|---|---|---|---|
handle |
KmlSolverTask ** |
Solver handle. The handle cannot be a null pointer. |
Input/Output |
n |
int |
Dimension of matrix A |
Input |
a |
|
Array whose dimension is the quantity of non-zero elements. a[i] is the value of the ith non-zero element. The lifecycle of this array is the same as that of the handle. |
Input |
ja |
int * |
Array whose dimension is the quantity of non-zero elements. ja[i] is the column number of the ith non-zero element. The lifecycle of this array is the same as that of the handle. |
Input |
ia |
int * |
(n+1)-dimensional array. ia[i] is the index of the first non-zero element in the ith row in all non-zero elements. The lifecycle of this array is the same as that of the handle. |
Input |
Return Values
Return Value |
Type |
Description |
|---|---|---|
NO_ERROR |
int |
The execution is successful. |
KML_SOLVER_INVALID_ARGUMENT |
int |
Invalid parameter. |
Dependencies
#include "kml_iss.h"
Examples
KmlSolverTask *handle
int n = 8;
double a[26] = {1.0, 1.0, 2.0, 9.0, 2.0, 1.0, -3.0, 2.0, 3.0, 2.0, 1.0, 1.0, 9.0, -5.0, 2.0, 6.0, 1.0, -3.0, 1.0, 4.0, 1.0, -5.0, 7.0, 2.0,\
1.0, 2.0};
int ja[26] = {0, 3, 4, 1, 2, 3, 5, 1, 2, 7, 0, 1, 3, 6, 0, 4, 5, 1, 4, 5, 7, 3, 6, 2, 5, 7};
int ia[9] = {0, 3, 7, 10, 14, 17, 21, 23, 26};
int ierr;
ierr = KmlIssGcrInitDI(&handle, n, a, ja, ia);