Ipopt
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Java example for interfacing with IPOPT. More...
Public Member Functions | |
HS071 () | |
Creates a new instance of HS071cpp. | |
boolean | get_scaling_parameters (double[] obj_scaling, int n, double[] x_scaling, int m, double[] g_scaling, boolean[] use_x_g_scaling) |
If you using_scaling_parameters = true, please overload this method,. | |
void | print (double[] x, String str) |
Static Public Member Functions | |
static void | main (String[]args) |
Main function for running this example. | |
Protected Member Functions | |
boolean | get_bounds_info (int n, double[] x_L, double[] x_U, int m, double[] g_L, double[] g_U) |
Callback function for variable bounds and constraint sides. | |
boolean | get_starting_point (int n, boolean init_x, double[] x, boolean init_z, double[] z_L, double[] z_U, int m, boolean init_lambda, double[] lambda) |
Callback function for the starting point. | |
boolean | eval_f (int n, double[] x, boolean new_x, double[] obj_value) |
Callback function for the objective function. | |
boolean | eval_grad_f (int n, double[] x, boolean new_x, double[] grad_f) |
Callback function for the objective function gradient. | |
boolean | eval_g (int n, double[] x, boolean new_x, int m, double[] g) |
Callback function for the constraints. | |
boolean | eval_jac_g (int n, double[] x, boolean new_x, int m, int nele_jac, int[] iRow, int[] jCol, double[] values) |
Callback function for the constraints Jacobian. | |
boolean | eval_h (int n, double[] x, boolean new_x, double obj_factor, int m, double[] lambda, boolean new_lambda, int nele_hess, int[] iRow, int[] jCol, double[] values) |
Callback function for the hessian. | |
Package Attributes | |
int | n |
int | m |
int | nele_jac |
int | nele_hess |
int | count_bounds = 0 |
int | dcount_start = 0 |
Java example for interfacing with IPOPT.
HS071 implements a Java example of problem 71 of the Hock-Schittkowsky test suite.
The optimal solution is x = (1.00000000, 4.74299963, 3.82114998, 1.37940829).
This code was based on same problem of the Ipopt distribution.
Definition at line 24 of file HS071.java.
org.coinor.examples.HS071.HS071 | ( | ) | [inline] |
Creates a new instance of HS071cpp.
Definition at line 36 of file HS071.java.
boolean org.coinor.examples.HS071.get_bounds_info | ( | int | n, |
double[] | x_L, | ||
double[] | x_U, | ||
int | m, | ||
double[] | g_L, | ||
double[] | g_U | ||
) | [inline, protected, virtual] |
Callback function for variable bounds and constraint sides.
Implements org.coinor.Ipopt.
Definition at line 59 of file HS071.java.
boolean org.coinor.examples.HS071.get_starting_point | ( | int | n, |
boolean | init_x, | ||
double[] | x, | ||
boolean | init_z, | ||
double[] | z_L, | ||
double[] | z_U, | ||
int | m, | ||
boolean | init_lambda, | ||
double[] | lambda | ||
) | [inline, protected, virtual] |
Callback function for the starting point.
Implements org.coinor.Ipopt.
Definition at line 80 of file HS071.java.
boolean org.coinor.examples.HS071.eval_f | ( | int | n, |
double[] | x, | ||
boolean | new_x, | ||
double[] | obj_value | ||
) | [inline, protected, virtual] |
Callback function for the objective function.
Implements org.coinor.Ipopt.
Definition at line 118 of file HS071.java.
boolean org.coinor.examples.HS071.eval_grad_f | ( | int | n, |
double[] | x, | ||
boolean | new_x, | ||
double[] | grad_f | ||
) | [inline, protected, virtual] |
Callback function for the objective function gradient.
Implements org.coinor.Ipopt.
Definition at line 127 of file HS071.java.
boolean org.coinor.examples.HS071.eval_g | ( | int | n, |
double[] | x, | ||
boolean | new_x, | ||
int | m, | ||
double[] | g | ||
) | [inline, protected, virtual] |
Callback function for the constraints.
Implements org.coinor.Ipopt.
Definition at line 139 of file HS071.java.
boolean org.coinor.examples.HS071.eval_jac_g | ( | int | n, |
double[] | x, | ||
boolean | new_x, | ||
int | m, | ||
int | nele_jac, | ||
int[] | iRow, | ||
int[] | jCol, | ||
double[] | values | ||
) | [inline, protected, virtual] |
Callback function for the constraints Jacobian.
Implements org.coinor.Ipopt.
Definition at line 150 of file HS071.java.
boolean org.coinor.examples.HS071.eval_h | ( | int | n, |
double[] | x, | ||
boolean | new_x, | ||
double | obj_factor, | ||
int | m, | ||
double[] | lambda, | ||
boolean | new_lambda, | ||
int | nele_hess, | ||
int[] | iRow, | ||
int[] | jCol, | ||
double[] | values | ||
) | [inline, protected, virtual] |
Callback function for the hessian.
Implements org.coinor.Ipopt.
Definition at line 188 of file HS071.java.
boolean org.coinor.examples.HS071.get_scaling_parameters | ( | double[] | obj_scaling, |
int | n, | ||
double[] | x_scaling, | ||
int | m, | ||
double[] | g_scaling, | ||
boolean[] | use_x_g_scaling | ||
) | [inline] |
If you using_scaling_parameters = true, please overload this method,.
To instruct IPOPT to use scaling values for variables, the first element of use_x_g_scaling should be set. To instruct IPOPT to use scaling values for constraints, the second element of use_x_g_scaling should be set.
obj_scaling | double[1] to store a scaling factor for the objective (negative value leads to maximizing the objective function) |
n | the number of variables in the problem |
x_scaling | array to store the scaling factors for the variables |
m | the number of constraints in the problem |
g_scaling | array to store the scaling factors for the constraints |
use_x_g_scaling | boolean[2] to store whether scaling factors for variables (1st entry) and constraints (2nd entry) should be used |
Reimplemented from org.coinor.Ipopt.
Definition at line 249 of file HS071.java.
void org.coinor.examples.HS071.print | ( | double[] | x, |
String | str | ||
) | [inline] |
Definition at line 258 of file HS071.java.
static void org.coinor.examples.HS071.main | ( | String[] | args | ) | [inline, static] |
Main function for running this example.
Definition at line 269 of file HS071.java.
int org.coinor.examples.HS071.n [package] |
Definition at line 27 of file HS071.java.
int org.coinor.examples.HS071.m [package] |
Definition at line 28 of file HS071.java.
int org.coinor.examples.HS071.nele_jac [package] |
Definition at line 29 of file HS071.java.
int org.coinor.examples.HS071.nele_hess [package] |
Definition at line 30 of file HS071.java.
int org.coinor.examples.HS071.count_bounds = 0 [package] |
Definition at line 32 of file HS071.java.
int org.coinor.examples.HS071.dcount_start = 0 [package] |
Definition at line 33 of file HS071.java.