xmdsintegratesiip.cc

XMDS is a code generator that integrates equations. You write them down in human readable form in a

	  }
	}
	fprintf(outfile,"];\n");
      }
      else {
	for(list<XMLString>::const_iterator nextMomentName = nextMGElement->momentNameList.begin(); 
	    nextMomentName != nextMGElement->momentNameList.end(); nextMomentName++) {
	  fprintf(outfile,"complex %s = rcomplex(0,0);\n",nextMomentName->c_str());
	}
      }
      fprintf(outfile,"\n");
              
      //zero the arrays and setup a local environment for the sum
      if(nDimsRemaining>0) {
	fprintf(outfile,"for(long _i0=0; _i0<%i",nextMGElement->momentNameList.size());
	if(simulation()->parameters()->usempi&!simulation()->parameters()->stochastic) {
	  whichMoment=0;
	  for(list<bool>::const_iterator nextIntegrateDimension = nextMGElement->integrateDimensionList.begin(); 
	      nextIntegrateDimension != nextMGElement->integrateDimensionList.end(); nextIntegrateDimension++) {
	    if(!*nextIntegrateDimension) {
	      if(whichMoment==0){
		fprintf(outfile,"*local_nx");
	      }
	      else {
		fprintf(outfile,"*_%s_lattice%li",fieldName,whichMoment);
	      }
	    }
	    whichMoment++;
	  }
	}
	else {
	  whichMoment=0;
	  for(list<bool>::const_iterator nextIntegrateDimension = nextMGElement->integrateDimensionList.begin(); 
	      nextIntegrateDimension != nextMGElement->integrateDimensionList.end(); nextIntegrateDimension++) {
	    if(!*nextIntegrateDimension) {
	      fprintf(outfile,"*_%s_lattice%li",fieldName,whichMoment);
	    }
	    whichMoment++;
	  }
	}
	fprintf(outfile,"; _i0++) {\n");
	fprintf(outfile,"  _img%li_array[_i0] = rcomplex(0,0);\n",whichMG);
	fprintf(outfile,"}\n");
      }

      fprintf(outfile,"{\n");
      // open loops
      simulation()->field()->openLoops(outfile,0,myTotalVectorsList);
      // pointer definition
      if(nDimsRemaining>0) {
	fprintf(outfile,"        long _img%li_pointer = ",whichMG);
	for(long unsigned int j=0; j<nDimsRemaining-1; j++) {
	  fprintf(outfile,"(");
	}
	whichMoment = 0;
	list<bool>::const_iterator nextIntegrateDimension = nextMGElement->integrateDimensionList.begin();

	while(*nextIntegrateDimension) {
	  nextIntegrateDimension++;
	  whichMoment++;
	}
	fprintf(outfile,"_i%li",whichMoment);  
                  
	nextIntegrateDimension++;
	whichMoment++;
	for(long unsigned int k=0; k<nDimsRemaining-1; k++) {
	  while(*nextIntegrateDimension) {
	    nextIntegrateDimension++;
	    whichMoment++;
	  }
	  fprintf(outfile,"*_%s_lattice%li+_i%li)",fieldName,whichMoment,whichMoment);
	  nextIntegrateDimension++;
	  whichMoment++;
	}

	fprintf(outfile,"*%i;\n",nextMGElement->momentNameList.size());
      }
      // code
      fprintf(outfile,"%s\n",nextMGElement->integrateMomentGroupCode.c_str());

      // close loops
      simulation()->field()->closeLoops(outfile,0,myTotalVectorsList);
			  
      fprintf(outfile,"}\n");

      // if there was any integration, multiply by the relevant volume element
      if(nDimsRemaining < simulation()->field()->geometry()->nDims()) {
	if(nDimsRemaining > 0) {
	  fprintf(outfile,"for(long _i0=0; _i0<%i",nextMGElement->momentNameList.size());
	  if(simulation()->parameters()->usempi&!simulation()->parameters()->stochastic) {
	    whichMoment=0;
	    for(list<bool>::const_iterator nextIntegrateDimension = nextMGElement->integrateDimensionList.begin(); 
		nextIntegrateDimension != nextMGElement->integrateDimensionList.end(); nextIntegrateDimension++) {
	      if(!*nextIntegrateDimension) {
		if(whichMoment==0){
		  fprintf(outfile,"*local_nx");
		}
		else {
		  fprintf(outfile,"*_%s_lattice%li",fieldName,whichMoment);
		}
	      }
	      whichMoment++;
	    }
	  }
	  else {
	    whichMoment=0;
	    for(list<bool>::const_iterator nextIntegrateDimension = nextMGElement->integrateDimensionList.begin(); 
		nextIntegrateDimension != nextMGElement->integrateDimensionList.end(); nextIntegrateDimension++) {
	      if(!*nextIntegrateDimension) {
		fprintf(outfile,"*_%s_lattice%li",fieldName,whichMoment);
	      }
	      whichMoment++;
	    }
	  }
	  whichMoment=0;
	  fprintf(outfile,"; _i0++) {\n");
	  fprintf(outfile,"   _img%li_array[_i0] = _img%li_array[_i0]",whichMG,whichMG);
	  for(list<bool>::const_iterator nextIntegrateDimension = nextMGElement->integrateDimensionList.begin(); 
	      nextIntegrateDimension != nextMGElement->integrateDimensionList.end(); nextIntegrateDimension++){
	    if(*nextIntegrateDimension) {
	      fprintf(outfile,"*_%s_dx%li",fieldName,whichMoment);
	    }
	    whichMoment++;
	  }
	  fprintf(outfile,";\n");
	  fprintf(outfile," }\n");
	}
	else {
	  for(list<XMLString>::const_iterator nextMomentName = nextMGElement->momentNameList.begin(); 
	      nextMomentName != nextMGElement->momentNameList.end(); nextMomentName++) {
	    whichMoment = 0;
	    fprintf(outfile,"  %s = %s",nextMomentName->c_str(),nextMomentName->c_str());
	    for(list<bool>::const_iterator nextIntegrateDimension = nextMGElement->integrateDimensionList.begin(); 
		nextIntegrateDimension != nextMGElement->integrateDimensionList.end(); nextIntegrateDimension++){
	      if(*nextIntegrateDimension) {
		fprintf(outfile,"*_%s_dx%li",fieldName,whichMoment);
	      }
	      whichMoment++;
	    }
	    fprintf(outfile,";\n");
	  }
	}
      }

      // if mpi and first variable integrated then mpireduce
      if(simulation()->parameters()->usempi&!simulation()->parameters()->stochastic) {
	if(* nextMGElement->integrateDimensionList.begin()) {
	  if(nDimsRemaining>0) {
	    fprintf(outfile,"\n  complex *_temp_img%li_array = new complex[%i",whichMG,nextMGElement->momentNameList.size());
	    whichMoment=0;
	    for(list<bool>::const_iterator nextIntegrateDimension = nextMGElement->integrateDimensionList.begin(); 
		nextIntegrateDimension != nextMGElement->integrateDimensionList.end(); nextIntegrateDimension++) {
	      if(!*nextIntegrateDimension) {
		fprintf(outfile,"*_%s_lattice%li",fieldName,whichMoment);
	      }
	      whichMoment++;
	    }
	    fprintf(outfile,"];\n");
	    fprintf(outfile,"  MPI_Reduce(_img%li_array,_temp_img%li_array,2*%i",whichMG,whichMG,nextMGElement->momentNameList.size());
	    whichMoment=0;
	    for(list<bool>::const_iterator nextIntegrateDimension = nextMGElement->integrateDimensionList.begin(); 
		nextIntegrateDimension != nextMGElement->integrateDimensionList.end(); nextIntegrateDimension++) {
	      if(!*nextIntegrateDimension) {
		fprintf(outfile,"*_%s_lattice%li",fieldName,whichMoment);
	      }
	      whichMoment++;
	    }
	    fprintf(outfile,",MPI_DOUBLE,MPI_SUM,0,MPI_COMM_WORLD);\n");
	    fprintf(outfile,"\n  delete[] _temp_img%li_array;\n",whichMG);					
	  }
	  else {
	    fprintf(outfile,"\n  complex *_temp%li_mpireduce = new complex;\n",whichMG);
	    for(list<XMLString>::const_iterator nextMomentName = nextMGElement->momentNameList.begin(); 
		nextMomentName != nextMGElement->momentNameList.end(); nextMomentName++) {
	      fprintf(outfile,"  MPI_Reduce(&%s,_temp%li_mpireduce,2,MPI_DOUBLE,MPI_SUM,0,MPI_COMM_WORLD);\n",nextMomentName->c_str(),whichMG);
	      fprintf(outfile,"\n  delete _temp%li_mpireduce;\n",whichMG);
	    }
	  }
	}
      }

      fprintf(outfile,"\n");
      fprintf(outfile,"// *********************************************************\n");
      fprintf(outfile,"\n");
      nextMGElement++;           
    }
    else {
      throw xmdsException("Unknown code element in the integrate block!");
    }
  }

  // delete any arrays that were generated
  for(list<long>::const_iterator deleteMGArray = deleteMGArrayList.begin(); 
      deleteMGArray != deleteMGArrayList.end(); deleteMGArray++) {
    fprintf(outfile,"delete[] _img%li_array;\n",*deleteMGArray);					
  }
  

  // clean up mallocs
  fprintf(outfile,"    delete[] _%s_main_old;\n",fieldName);

  for(list<XMLString>::const_iterator pXMLString = crossVectorNamesList()->begin(); pXMLString != crossVectorNamesList()->end(); pXMLString++) {

    fprintf(outfile,"    delete[] _%s_%s_old;\n",
	    fieldName,pXMLString->c_str());

  }

  if((simulation()->parameters()->stochastic)&&(!noNoises())) {

    fprintf(outfile,"    delete[] _noises;\n");

    if(simulation()->parameters()->errorCheck) {
      fprintf(outfile,"    delete[] _noises2;\n");
    }

    fprintf(outfile,"\n");
  }

  fprintf(outfile,"}\n");
  fprintf(outfile,"\n");
};

// ******************************************************************************
void xmdsIntegrateSIIP::writeSingleStepCode(
					    FILE *const outfile,
					    const stepCaseEnum& stepCase) const {
  if(debugFlag) {
    printf("xmdsIntegrateSIIP::writeSingleStepCode\n");
  }

  const char *const propDim = simulation()->parameters()->propDimName.c_str();

  const char* kStep="";
  if(!constantK()) {
    kStep="_step/2";
  }

  const char* generatorFlag="";
  if((simulation()->parameters()->stochastic)&&(!noNoises())) {
    if(stepCase==FULLSTEP) {
      generatorFlag=",0";
    }
    else if(stepCase==FIRST_HALFSTEP) {
      generatorFlag=",1";
    }
    else if(stepCase==SECOND_HALFSTEP) {
      generatorFlag=",2";
    }
  }

  const char* indent = "	";
  if(simulation()->parameters()->errorCheck) {
    indent = "		";
  }

  if(usesKOperators()) {
    fprintf(outfile,"%s_segment%li_k_propagate(%s);\n",indent,segmentNumber,kStep);
    fprintf(outfile,"\n");
  }

  fprintf(outfile,"%s%s += _step/2;\n",indent,propDim);
  fprintf(outfile,"\n");

  fprintf(outfile,"%s_segment%li_x_propagate(_step,cycle%s);\n",indent,segmentNumber,generatorFlag);
  fprintf(outfile,"\n");

  if(usesKOperators()) {
    fprintf(outfile,"%s_segment%li_k_propagate(%s);\n",indent,segmentNumber,kStep);
    fprintf(outfile,"\n");
  }

  fprintf(outfile,"%s%s += _step/2;\n",indent,propDim);
  fprintf(outfile,"\n");
};