ProblemInstat.cc

//
// Software License for AMDiS
//
// Copyright (c) 2010 Dresden University of Technology 
// All rights reserved.
// Authors: Simon Vey, Thomas Witkowski et al.
//
// This file is part of AMDiS
//
// See also license.opensource.txt in the distribution.

#ifdef HAVE_PARALLEL_DOMAIN_AMDIS
#include <mpi.h>
#endif

#include "ProblemInstat.h"
#include "AdaptStationary.h"
#include "AdaptInstationary.h"
#include "Estimator.h"
#include "StandardProblemIteration.h"
#include "io/FileWriter.h"

namespace AMDiS {
  
  using namespace std;

  void ProblemInstatBase::solveInitialProblem(AdaptInfo *adaptInfo)
  {
    AdaptStationary initialAdapt((name + "->initial->adapt").c_str(),
				 new StandardProblemIteration(initialProblem),
				 adaptInfo);

    initialAdapt.adapt();
  }


  void ProblemInstat::transferInitialSolution(AdaptInfo *adaptInfo)
  {
    TEST_EXIT(adaptInfo->getTime() == adaptInfo->getStartTime())
      ("after initial solution: time != start time\n");
    problemStat->writeFiles(adaptInfo, true);
  }


  void ProblemInstat::closeTimestep(AdaptInfo *adaptInfo) 
  {
    FUNCNAME("ProblemInstat::closeTimestep()");

    bool force = (adaptInfo->getTime() >= adaptInfo->getEndTime());
    problemStat->writeFiles(adaptInfo, force);

#ifdef HAVE_PARALLEL_DOMAIN_AMDIS
    MSG("Computational time for timestep: %.5f seconds\n", 
	(MPI::Wtime() - lastTimepoint));
#endif
  }


  ProblemInstat::ProblemInstat(string sname, 
			       ProblemStatSeq *prob, 
			       ProblemStatBase *initialProb)
    : ProblemInstatBase(sname, initialProb), 
      problemStat(prob),
      oldSolution(NULL)
  {}


  ProblemInstat::ProblemInstat(string sname, 
			       ProblemStatSeq &prob)
    : ProblemInstatBase(sname, NULL), 
      problemStat(&prob),
      oldSolution(NULL)
  {}


  ProblemInstat::ProblemInstat(string sname, 
			       ProblemStatSeq &prob, 
			       ProblemStatBase &initialProb)
    : ProblemInstatBase(sname, &initialProb), 
      problemStat(&prob),
      oldSolution(NULL)
  {}


  ProblemInstat::~ProblemInstat()
  {
    delete oldSolution;
  }


  void ProblemInstat::initialize(Flag initFlag, ProblemInstat *adoptProblem,
				 Flag adoptFlag) 
  {
    FUNCNAME("ProblemInstat::initialize()");

    // === create vector for old solution ===

    if (oldSolution) {
      WARNING("oldSolution already created\n");
    } else {
      if (initFlag.isSet(INIT_UH_OLD))
	createUhOld();

      if (adoptProblem && adoptFlag.isSet(INIT_UH_OLD)) {
	ProblemInstat* _adoptProblem = dynamic_cast<ProblemInstat*>(adoptProblem);
	TEST_EXIT(_adoptProblem)
	  ("can't adopt oldSolution from problem which is not instationary and vectorial");
	TEST_EXIT(!oldSolution)("oldSolution already created");
	oldSolution = _adoptProblem->getOldSolution();
      }
    }

    if (!oldSolution) 
      WARNING("no oldSolution created\n");
  }


  void ProblemInstat::createUhOld() 
  {
    if (oldSolution) {
      WARNING("oldSolution already created\n");
    } else {
      int size = problemStat->getNumComponents();
      // create oldSolution
      oldSolution = new SystemVector("old solution", problemStat->getFeSpaces(), size);
      for (int i = 0; i < size; i++) {
	oldSolution->setDOFVector(i, new DOFVector<double>(problemStat->getFeSpace(i), 
							   name + "->uOld"));
	oldSolution->getDOFVector(i)->setCoarsenOperation(COARSE_INTERPOL);
      
	if (problemStat->getEstimator(i))
	  problemStat->getEstimator(i)->
	    addUhOldToSystem(i, oldSolution->getDOFVector(i));
      }
    }
  }


  void ProblemInstat::initTimestep(AdaptInfo *adaptInfo) 
  {
#ifdef HAVE_PARALLEL_DOMAIN_AMDIS
    lastTimepoint = MPI::Wtime();
#endif

    oldSolution->copy(*(problemStat->getSolution())); 
  }

}