Gradjx.h File Reference

header file for inverse methods gradient computation More...

#include "../../classes/classes.h"
#include "../../analyses/analyses.h"

Go to the source code of this file.

Functions
void	Gradjx (Vector< IssmDouble > **pgrad_g, IssmDouble **pgrad_norm, Elements *elements, Nodes *nodes, Vertices *vertices, Loads *loads, Materials *materials, Parameters *parameters)
void	Gradjx (IssmDouble **pgrad_g, IssmDouble **pgrad_norm, Elements *elements, Nodes *nodes, Vertices *vertices, Loads *loads, Materials *materials, Parameters *parameters)

Detailed Description

header file for inverse methods gradient computation

Definition in file Gradjx.h.

Function Documentation

Gradjx() [1/2]

void Gradjx	(	Vector< IssmDouble > **	pgrad_g,
		IssmDouble **	pgrad_norm,
		Elements *	elements,
		Nodes *	nodes,
		Vertices *	vertices,
		Loads *	loads,
		Materials *	materials,
		Parameters *	parameters
	)

Definition at line 9 of file Gradjx.cpp.

                                                                                                                                                                                    {
 
   int          numberofvertices;
   int          num_controls,analysisenum;
   IssmDouble   norm_inf;
   IssmDouble  *norm_list     = NULL;
   int     *control_type  = NULL;
   Vector<IssmDouble>  *gradient      = NULL;
   Vector<IssmDouble> **gradient_list = NULL;
 
   /*Display message*/
   if(VerboseModule()) _printf0_("   Computing cost function gradient\n");
 
   /*retrieve some parameters: */
   parameters->FindParam(&num_controls,InversionNumControlParametersEnum);   _assert_(num_controls);
   parameters->FindParam(&control_type,NULL,InversionControlParametersEnum);
   numberofvertices=vertices->NumberOfVertices();
 
   /*Get current analysis*/
   parameters->FindParam(&analysisenum,AnalysisTypeEnum);
   Analysis* analysis = EnumToAnalysis(analysisenum);
 
   /*Allocate gradient_list */
   gradient_list = xNew<Vector<IssmDouble>*>(num_controls);
   norm_list = xNew<IssmDouble>(num_controls);
   for(int i=0;i<num_controls;i++){
      gradient_list[i]=new Vector<IssmDouble>(num_controls*numberofvertices);
   }
   gradient=new Vector<IssmDouble>(num_controls*numberofvertices);
 
   /*Compute all gradient_list*/
   for(int i=0;i<num_controls;i++){
      for(int j=0;j<elements->Size();j++){
         Element* element=(Element*)elements->GetObjectByOffset(j);
         analysis->GradientJ(gradient_list[i],element,control_type[i],i);
      }
      gradient_list[i]->Assemble();
      norm_list[i]=gradient_list[i]->Norm(NORM_INF);
   }
 
   /*Add all gradient_list together*/
   for(int i=0;i<num_controls;i++){
      gradient->AXPY(gradient_list[i],1.0);
      delete gradient_list[i];
   }
 
   /*Check that gradient is clean*/
   norm_inf=gradient->Norm(NORM_INF);
   if(norm_inf<=0)                 _error_("||dJ/dk|| = 0    gradient norm is zero");
   if(xIsNan<IssmDouble>(norm_inf))_error_("||dJ/dk|| = NaN  gradient norm is NaN");
 
   /*Clean-up and assign output pointer*/
   delete analysis;
   xDelete<Vector<IssmDouble>*>(gradient_list);
   xDelete<int>(control_type);
   if(pnorm_list){
      *pnorm_list=norm_list;
   }
   else{
      xDelete<IssmDouble>(norm_list);
   }
   if(pgradient)  *pgradient=gradient;
 
}

Gradjx() [2/2]

void Gradjx	(	IssmDouble **	pgrad_g,
		IssmDouble **	pgrad_norm,
		Elements *	elements,
		Nodes *	nodes,
		Vertices *	vertices,
		Loads *	loads,
		Materials *	materials,
		Parameters *	parameters
	)

Definition at line 73 of file Gradjx.cpp.

                                                                                                                                                                            {
 
   /*output: */
   IssmDouble* gradient=NULL;
 
   /*intermediary: */
   Vector<IssmDouble>* vec_gradient=NULL;
 
   Gradjx(&vec_gradient,pnorm_list,elements,nodes, vertices,loads,materials,parameters);
   gradient=vec_gradient->ToMPISerial();
 
   /*Free ressources:*/
   delete vec_gradient;
 
   /*Assign output pointers:*/
   *pgradient=gradient;
}