source: issm/trunk/src/c/classes/Misfit.h@ 19105

/*!\file Misfit.h
 * \brief: header file for Misfit object
 */

#ifndef _MISFIT_H_
#define _MISFIT_H_

/*Headers:*/
/*{{{*/
#include "./Definition.h"
#include "../datastructures/datastructures.h"
#include "./Elements/Element.h"
#include "./Elements/Elements.h"
#include "./FemModel.h"
#include "../modules/SurfaceAreax/SurfaceAreax.h"
#include "../classes/Params/Parameters.h"
#include "../classes/Inputs/Input.h"
#include "../classes/gauss/Gauss.h"
/*}}}*/
IssmDouble OutputDefinitionsResponsex(FemModel* femmodel,int output_enum);

class Misfit: public Object, public Definition{

        public: 

                int         definitionenum;
                char*       name;
                int         model_enum;
                int         observation_enum;
                int         weights_enum;
                char*       timeinterpolation;
                bool        local;     
                
                IssmDouble  misfit; //value carried over in time.
                int         lock; // if lock is on, we just return the value stored in "misfit".  this is used so we don't compute misfit past the final_time
                
                /*Misfit constructors, destructors :*/
                Misfit(){/*{{{*/

                        this->definitionenum = -1;
                        this->name = NULL;
                        this->model_enum = UNDEF;
                        this->observation_enum = UNDEF;
                        this->weights_enum = UNDEF;
                        this->timeinterpolation=NULL;
                        this->local=true;
                        this->misfit=0;
                        this->lock=0;

                }
                /*}}}*/
                Misfit(char* in_name, int in_definitionenum, int in_model_enum, int in_observation_enum, char* in_timeinterpolation, bool in_local, int in_weights_enum){/*{{{*/

                        this->definitionenum=in_definitionenum;
                        this->name   = xNew<char>(strlen(in_name)+1);
                        xMemCpy<char>(this->name,in_name,strlen(in_name)+1);

                        this->timeinterpolation   = xNew<char>(strlen(in_timeinterpolation)+1);
                        xMemCpy<char>(this->timeinterpolation,in_timeinterpolation,strlen(in_timeinterpolation)+1);

                        this->model_enum=in_model_enum;
                        this->observation_enum=in_observation_enum;
                        this->weights_enum=in_weights_enum;
                        this->local=in_local;
                        
                        this->misfit=0;
                        this->lock=0;
                }
                /*}}}*/
                ~Misfit(){/*{{{*/
                        if(this->name)xDelete(this->name);
                        if(this->timeinterpolation)xDelete(this->timeinterpolation);
                        this->misfit=0;
                        this->lock=0;
                }
                /*}}}*/
                /*Object virtual function resolutoin: */
                void Echo(void){/*{{{*/
                        _printf_(" Misfit: " << name << " " << this->definitionenum << "\n");
                        _printf_("    model_enum: " << model_enum << " " << EnumToStringx(model_enum) << "\n");
                        _printf_("    observation_enum: " << observation_enum << " " << EnumToStringx(observation_enum) << "\n");
                        _printf_("    weights_enum: " << weights_enum << " " << EnumToStringx(weights_enum) << "\n");
                        _printf_("    timeinterpolation: " << timeinterpolation << "\n");
                        _printf_("    local: " << local << "\n");
                }
                /*}}}*/
                void DeepEcho(void){/*{{{*/
                        this->Echo();
                }
                /*}}}*/
                int Id(void){/*{{{*/
                        return -1;
                }
                /*}}}*/
                int ObjectEnum(void){/*{{{*/
                        return MisfitEnum;
                }
                /*}}}*/
                Object* copy() {/*{{{*/
                        Misfit* mf = new Misfit(this->name,this->definitionenum, this->model_enum,this->observation_enum,this->timeinterpolation,this->local,this->weights_enum);
                        mf->misfit=this->misfit;
                        mf->lock=this->lock;
                        return (Object*) mf;
                }
                /*}}}*/
                /*Definition virtual function resolutoin: */
                char* Name(){/*{{{*/

                        char* name2=xNew<char>(strlen(this->name)+1);
                        xMemCpy(name2,this->name,strlen(this->name)+1);

                        return name2;
                }
                /*}}}*/
                int DefinitionEnum(){/*{{{*/

                        return this->definitionenum;
                }
                /*}}}*/
                 IssmDouble Response(FemModel* femmodel){/*{{{*/
                                 
                         /*diverse: */
                         IssmDouble time,starttime,finaltime;
                         IssmDouble dt;
                         
                         /*recover time parameters: */
                         femmodel->parameters->FindParam(&starttime,TimesteppingStartTimeEnum);
                         femmodel->parameters->FindParam(&finaltime,TimesteppingFinalTimeEnum);
                         femmodel->parameters->FindParam(&time,TimeEnum);
                         femmodel->parameters->FindParam(&dt,TimesteppingTimeStepEnum);

                         if (this->local){ /*local computation: {{{*/

                                 int i;
                                 IssmDouble misfit_t=0.;
                                 IssmDouble all_misfit_t=0.;
                                 IssmDouble area_t=0.;
                                 IssmDouble all_area_t;

                        
                                 /*If we are locked, return time average: */
                                 if(this->lock)return misfit/(time-starttime);

                                 for(i=0;i<femmodel->elements->Size();i++){
                                         Element* element=(Element*)femmodel->elements->GetObjectByOffset(i);
                                         misfit_t+=element->Misfit(model_enum,observation_enum,weights_enum);
                                         area_t+=element->MisfitArea(weights_enum);
                                 }

                                 ISSM_MPI_Allreduce ( (void*)&misfit_t,(void*)&all_misfit_t,1,ISSM_MPI_DOUBLE,ISSM_MPI_SUM,IssmComm::GetComm());
                                 ISSM_MPI_Allreduce ( (void*)&area_t,(void*)&all_area_t,1,ISSM_MPI_DOUBLE,ISSM_MPI_SUM,IssmComm::GetComm());
                                 area_t=all_area_t;
                                 misfit_t=all_misfit_t;
                                 
                                 /*Divide by surface area if not nill!: */
                                 if (area_t!=0) misfit_t=misfit_t/area_t;

                                 /*Add this time's contribution to curent misfit: */
                                 misfit+=dt*misfit_t;

                                 /*Do we lock? i.e. are we at final_time? :*/
                                 if(time==finaltime)this->lock=1;

                                 /*What we return is the value of misfit / time: */
                                 return misfit/(time-starttime);
                         } /*}}}*/
                         else{ /*global computation: {{{ */
                                 
                                 IssmDouble model, observation;
                                 
                                 /*If we are locked, return time average: */
                                 if(this->lock)return misfit/(time-starttime);

                                 /*First, the global  model response: */
                                 model=OutputDefinitionsResponsex(femmodel,this->model_enum);
                                 /*Now, the observation is buried inside the elements, go fish it in the first element (cludgy, needs fixing): */
                                 Element* element=(Element*)femmodel->elements->GetObjectByOffset(0); _assert_(element);
                                 Input* input = element->GetInput(observation_enum); _assert_(input);
                                 input->GetInputAverage(&observation);
                                 
                                 /*Add this time's contribution to curent misfit: */
                                 misfit+=dt*(model-observation);
                                 
                                 /*Do we lock? i.e. are we at final_time? :*/
                                 if(time==finaltime)this->lock=1;
                                 
                                 /*What we return is the value of misfit / time: */
                                 return misfit/(time-starttime);
                         } /*}}}*/

                 }
                        /*}}}*/
};

#endif  /* _MISFIT_H_ */