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// Copyright (C) 2015 - IIT Bombay - FOSSEE
//
// This file must be used under the terms of the CeCILL.
// This source file is licensed as described in the file COPYING, which
// you should have received as part of this distribution. The terms
// are also available at
// http://www.cecill.info/licences/Licence_CeCILL_V2-en.txt
// Author: R.Vidyadhar & Vignesh Kannan
// Organization: FOSSEE, IIT Bombay
// Email: toolbox@scilab.in
#include "sci_iofunc.hpp"
#include "IpIpoptApplication.hpp"
#include "minuncNLP.hpp"
#include <IpSolveStatistics.hpp>
extern "C"
{
#include <api_scilab.h>
#include <Scierror.h>
#include <BOOL.h>
#include <localization.h>
#include <sciprint.h>
#include <iostream>
using namespace std;
int sci_solveminuncp(char *fname)
{
using namespace Ipopt;
CheckInputArgument(pvApiCtx, 8, 8);
CheckOutputArgument(pvApiCtx, 9, 9);
// Error management variable
SciErr sciErr;
//Function pointers, input matrix(Starting point) pointer, flag variable
int* funptr=NULL;
int* gradhesptr=NULL;
double* x0ptr=NULL;
double flag1,flag2;
// Input arguments
double *cpu_time=NULL,*max_iter=NULL;
static unsigned int nVars = 0,nCons = 0;
unsigned int temp1 = 0,temp2 = 0, iret = 0;
int x0_rows, x0_cols;
// Output arguments
double ObjVal=0,iteration=0,cpuTime=0,fobj_eval=0;
double dual_inf, constr_viol, complementarity, kkt_error;
const double *fX = NULL, *fGrad= NULL;
const double *fHess= NULL;
int rstatus = 0;
int int_fobj_eval, int_constr_eval, int_fobj_grad_eval, int_constr_jac_eval, int_hess_eval;
////////// Manage the input argument //////////
//Objective Function
if(getFunctionFromScilab(1,&funptr))
{
return 1;
}
//Function for gradient and hessian
if(getFunctionFromScilab(2,&gradhesptr))
{
return 1;
}
//Flag for Gradient from Scilab
if(getDoubleFromScilab(3, &flag1))
{
return 1;
}
//Flag for Hessian from Scilab
if(getDoubleFromScilab(5, &flag2))
{
return 1;
}
//x0(starting point) matrix from scilab
if(getDoubleMatrixFromScilab(7, &x0_rows, &x0_cols, &x0ptr))
{
return 1;
}
//Getting number of iterations
if(getFixedSizeDoubleMatrixInList(8,2,temp1,temp2,&max_iter))
{
return 1;
}
//Getting Cpu Time
if(getFixedSizeDoubleMatrixInList(8,4,temp1,temp2,&cpu_time))
{
return 1;
}
//Initialization of parameters
nVars=x0_cols;
nCons=0;
// Starting Ipopt
SmartPtr<minuncNLP> Prob = new minuncNLP(nVars, nCons, x0ptr, flag1, flag2);
SmartPtr<IpoptApplication> app = IpoptApplicationFactory();
////////// Managing the parameters //////////
app->Options()->SetNumericValue("tol", 1e-7);
app->Options()->SetIntegerValue("max_iter", (int)*max_iter);
app->Options()->SetNumericValue("max_cpu_time", *cpu_time);
///////// Initialize the IpoptApplication and process the options /////////
ApplicationReturnStatus status;
status = app->Initialize();
if (status != Solve_Succeeded)
{
sciprint("\n*** Error during initialization!\n");
return (int) status;
}
// Ask Ipopt to solve the problem
status = app->OptimizeTNLP((SmartPtr<TNLP>&)Prob);
cpuTime = app->Statistics()->TotalCPUTime();
app->Statistics()->NumberOfEvaluations(int_fobj_eval, int_constr_eval, int_fobj_grad_eval, int_constr_jac_eval, int_hess_eval);
app->Statistics()->Infeasibilities(dual_inf, constr_viol, complementarity, kkt_error);
rstatus = Prob->returnStatus();
////////// Manage the output argument //////////
fX = Prob->getX();
fGrad = Prob->getGrad();
fHess = Prob->getHess();
ObjVal = Prob->getObjVal();
iteration = (double)app->Statistics()->IterationCount();
fobj_eval = (double)int_fobj_eval;
if (returnDoubleMatrixToScilab(1, 1, nVars, fX))
{
return 1;
}
if (returnDoubleMatrixToScilab(2, 1, 1, &ObjVal))
{
return 1;
}
if (returnIntegerMatrixToScilab(3, 1, 1, &rstatus))
{
return 1;
}
if (returnDoubleMatrixToScilab(4, 1, 1, &iteration))
{
return 1;
}
if (returnDoubleMatrixToScilab(5, 1, 1, &cpuTime))
{
return 1;
}
if (returnDoubleMatrixToScilab(6, 1, 1, &fobj_eval))
{
return 1;
}
if (returnDoubleMatrixToScilab(7, 1, 1, &dual_inf))
{
return 1;
}
if (returnDoubleMatrixToScilab(8, 1, nVars, fGrad))
{
return 1;
}
if (returnDoubleMatrixToScilab(9, 1, nVars*nVars, fHess))
{
return 1;
}
// As the SmartPtrs go out of scope, the reference count
// will be decremented and the objects will automatically
// be deleted.*/
return 0;
}
}
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