xml_parser_restart.cpp

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/* ./parser/xml_parser_restart.cpp 
**********************************
Copyright INRIA and CEA 

author : Guillaume ANCIAUX (anciaux@labri.fr, g.anciaux@laposte.net)

The LibMultiScale is a C++ parallel framework for the multiscale
coupling methods dedicated to material simulations. This framework
provides an API which makes it possible to program coupled simulations
and integration of already existing codes.

This Project is done in a collaboration between INRIA Futurs Bordeaux
within ScAlApplix team and CEA/DPTA Ile de France. 

This software is governed by the CeCILL-C license under French law and
abiding by the rules of distribution of free software.  You can  use, 
modify and/ or redistribute the software under the terms of the CeCILL-C
license as circulated by CEA, CNRS and INRIA at the following URL
"http://www.cecill.info". 

As a counterpart to the access to the source code and  rights to copy,
modify and redistribute granted by the license, users are provided only
with a limited warranty  and the software's author,  the holder of the
economic rights,  and the successive licensors  have only  limited
liability. 

In this respect, the user's attention is drawn to the risks associated
with loading,  using,  modifying and/or developing or reproducing the
software by the user in light of its specific status of free software,
that may mean  that it is complicated to manipulate,  and  that  also
therefore means  that it is reserved for developers  and  experienced
professionals having in-depth computer knowledge. Users are therefore
encouraged to load and test the software's suitability as regards their
requirements in conditions enabling the security of their systems and/or 
data to be ensured and,  more generally, to use and operate it in the 
same conditions as regards security. 

The fact that you are presently reading this means that you have had
knowledge of the CeCILL-C license and that you accept its terms.
***********************************/

#define LOCAL_MODULE MOD_PARSER

#include "../common/common.h"
#include <sstream>
#include "xml_parser_restart.h"

bool Triplet::domainSizeIsSet;
Cube Triplet::geom(3);
double Triplet::tx = 0;
double Triplet::ty = 0;
double Triplet::tz = 0;


inline void truncate(double * a){
  
  //  print_double(*a);
  unsigned int * temp = (unsigned int *)a;
  *temp = 0;
  //print_double(*a);
//   ++temp;
//   int mask = 2047;
//   mask = ~mask;
//   *temp = *temp & mask;
  
  //  print_double(*a);
}


void Triplet::Truncate(){
  //  if (!domainSizeIsSet) FATAL("Warning : domain size shloud be set to truncate coordinates");
  
  // int nx = (geom.Xmax() - geom.Xmin())/1e-10;
  //translating 
  x += tx;
  y += ty;
  z += tz;

  truncate(&x);
  truncate(&y);  
  truncate(&z);
};

void Triplet::SetDomainSize(Geometrie & g){
  domainSizeIsSet = true;
  geom = GeomTools::GetBoundingBox(g);
};



void XMLRestartParser::charHandler(const XML_Char * str,int len){
  char * buf;
    
  DUMP("read a line of size " << len,DBG_ALL);
  if (len == 0)
    return;

  buf = new char[len+1];
  
  strncpy(buf,str,len);
  
  if (type == TEXT)
    buf[len]='\0';
  else
    b64.SetStream(buf,len);
  
  if (buf[0] == '\n')
    return;
  
  //    DUMP("len = " << len);
  //DUMP("buf = " << buf);
  
  switch (current_field){
  case P0S: manageP0(buf);break;
  case DEP: manageU(buf);break;
  case VEL: manageV(buf);break;
  case ACC: manageA(buf);break;
  }

  delete [] buf;
};


void XMLRestartParser::startElement(const char *name,const char **atts){
  int j;
  cpt=0;
  
  if (strcmp("SimulationData",name)==0){
    for (j=0; (j < 10  && atts[j] != NULL);++j){
      if (strcmp("dim",atts[j])==0){
        Dim = atoi(atts[j+1]);
        //printf("Dim = %d\n",data.Dim);
        ++j;
      }
      /*       if (strcmp("Unity",atts[j])==0){ */
      /*        if (strcmp("Real",atts[j+1])==0){ */
      /*          unit.SetReadUnits(UnitsConverter::AtomsUnits); */
      /*        } */
      /*        else if (strcmp("Atoms",atts[j+1])==0){ */
      
      /*        } */
      /*        ++j; */
      /*       } */
      if (strcmp("dataType",atts[j])==0){
        if (strcmp("TEXT",atts[j+1])==0){
          type = TEXT;
        }
        else type = BINARY;
        ++j;
      }
      if (strcmp("nbDofs",atts[j])==0){
        nbDofs = atoi(atts[j+1]);
        //printf("nbNodes = %d\n",data.nbNodes);
        ++j;
        tab_indexes = new int[nbDofs]; 
      }
      if (strcmp("savedTime",atts[j])==0){
        savedTime = atoi(atts[j+1]);
        //printf("nbNodes = %d\n",data.nbNodes);
        ++j;
      }
    }
  }
  if (strcmp("P0",name)==0){
    current_field = P0S;
    DUMP("reading intial positions",DBG_INFO);
  }
  if (strcmp("U",name)==0){
    current_field = DEP;
    DUMP("reading displacements",DBG_INFO);
  }
  if (strcmp("V",name)==0){
    current_field = VEL;
    DUMP("reading velocities",DBG_INFO);
  }
  if (strcmp("A",name)==0){
    current_field = ACC;
    DUMP("reading accelerations",DBG_INFO);
  }
  
  
};


void XMLRestartParser::endElement(const char * name){
  
  char message[256];
  
  switch (current_field){
  case P0S: sprintf(message,"%s : in vector P0s ",name);break;
  case DEP: sprintf(message,"%s : in vector Us ",name);break;
  case VEL: sprintf(message,"%s : in vector Vs ",name);break;
  case ACC: sprintf(message,"%s : in vector As ",name);break;
  }
  current_field = NONE;
  
  if (cpt != 0 && cpt != nbDofs)
    FATAL(message << ": values number do not concord (read " << cpt << " should be " << nbDofs << ")");
};

int XMLRestartParser::readTriplet(Triplet & C,char * s){
  if (type == TEXT){
    std::istringstream str(s);
    char tmp[256];
    if (triplet.getRead() == 0 && str >> tmp) {
      triplet(0) = atof(tmp);
      triplet.getRead()++;
    }
    else return 0;
    if (triplet.getRead() == 1 && str >> tmp) {
      triplet(1) = atof(tmp); 
      triplet.getRead()++;
    }
    else return 0;
    if (triplet.getRead() == 2 && str >> tmp) {
      triplet(2) = atof(tmp);
      triplet.getRead()++;
    }
    else return 0;
  }

  if (type == BINARY){
    for (int i = triplet.getRead() ; i < 3 ; ++i){
      DUMP("read " << triplet.getRead() << " " << i,DBG_ALL);
      triplet.getRead() += b64.PopDoubleInBase64(triplet(i)); 
      DUMP("read " << triplet.getRead() << " " << i,DBG_ALL);
      if (i+1 != triplet.getRead()) {DUMP("already red " << triplet.getRead() << " components of the triplet",DBG_ALL);return 0;}
    } 
  }
   
  C = triplet;
  triplet.getRead() = 0;

  return 1;
}

  
void XMLRestartParser::manageP0(char * s){
  Triplet C;
  while (readTriplet(C,s) && cpt < nbDofs){
    C.Truncate();
    mapP0[cpt] = C;
    DUMP(C(0) << " " << C(1) << " " << C(2) << " " << cpt,DBG_ALL);
    ++cpt;    
  }
};


void XMLRestartParser::manageU(char * s){
  Triplet u;
  while (readTriplet(u,s) && cpt < nbDofs){
    mapU[mapP0[cpt]] = u;
    DUMP(u(0) << " + " << u(1) << " + " << u(2) << " + " << cpt,DBG_ALL);
    ++cpt;    
  }
};

void XMLRestartParser::manageV(char * s){
  Triplet v;
  while (readTriplet(v,s) && cpt < nbDofs){
    mapV[mapP0[cpt]] = v;
    DUMP(v(0) << " + " << v(1) << " + " << v(2) << " + " << cpt,DBG_ALL);
    ++cpt;    
  }
};

void XMLRestartParser::manageA(char * s){
  Triplet a;
  while (readTriplet(a,s) && cpt < nbDofs){
    mapA[mapP0[cpt]] = a;
    DUMP(a(0) << " + " << a(1) << " + " << a(2) << " + " << cpt,DBG_ALL);
    ++cpt;    
  }
};


bool XMLRestartParser::IsDofRegistered(double x,double y, double z){
  double epsilon2 = .8e-10*.8e-10;

  if (Dim < 3) z = 0;
  if (Dim == 1) y = 0;
  Triplet a(x,y,z);
  a.Truncate();
  if (mapU.count(a) == 0) {
    std::map<Triplet,Triplet>::iterator pos;
    DUMP("testing if already registered with the position " << a,DBG_ALL);  
    pos = find_if(mapU.begin(),mapU.end(),close_enough(a));
  
    if(pos != mapU.end()){
      Triplet found = pos->first; 
      double dx = a(0) - found(0);
      double dy = a(1) - found(1);
      double dz = a(2) - found(2);

      double rmin = dx*dx + dy*dy +dz*dz;
      DUMP("minimal distance = " << FORMATREAL(rmin) << " " << found(0) << " " << found(1) << " " << found(2),DBG_ALL);
      if ( rmin > epsilon2 ) return false;
      Triplet::tx = found(0) - x;Triplet::ty=found(1) - y;Triplet::tz=found(2) -z;
      DUMP("translation  " << FORMATREAL(Triplet::tx) << " " << Triplet::ty << " " << Triplet::tz,DBG_ALL);
      
      return true;
    }
    DUMP("Triplet not found :  " << a,DBG_ALL);      
    return false;
  }
  return true;
};


void  XMLRestartParser::AssignDispField(double x,double y, double z,double & ux, double & uy,double & uz){
  if (Dim < 3) z = 0;
  if (Dim == 1) y = 0;
  Triplet a(x,y,z);
  a.Truncate();
  Triplet &b = mapU[a];
  ux = b(0);
  uy = b(1);
  uz = b(2);
};

void  XMLRestartParser::AssignVelField(double x,double y, double z,double & ux, double & uy,double & uz){
  if (Dim < 3) z = 0;
  if (Dim == 1) y = 0;
  Triplet a(x,y,z);
  a.Truncate();
  Triplet &b = mapV[a];
  ux = b(0);
  uy = b(1);
  uz = b(2);
};

void  XMLRestartParser::AssignForceField(double x,double y, double z,double & ux, double & uy,double & uz){
  if (Dim < 3) z = 0;
  if (Dim == 1) y = 0;
  Triplet a(x,y,z);
  a.Truncate();
  Triplet &b = mapA[a];
  ux = b(0);
  uy = b(1);
  uz = b(2);
};

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