int main (int argc, char *argv[]) {
// Parallelization related. Initialize and identify
// ---------------------------------------------------
int rank; // This processor's identifier
int nproc; // Number of processors in the group
PetscInitialize(&argc, &argv, "petsc_commandline_arg", PETSC_NULL);
MPI_Comm_size(PETSC_COMM_WORLD, &nproc);
MPI_Comm_rank(PETSC_COMM_WORLD, &rank);
std::cout << "Rank: " << rank << ", Nproc: " << nproc << std::endl;
//----------------------------------------------------
// TODO probably remove this error check in future to play around with petsc
//if (argc != 2){
// handleError(1, "A configuration file is required! Call the program by ./main configfile.xml");
//}
// read configuration and store information in parameters object
Configuration configuration(argv[1]);
Parameters parameters;
configuration.loadParameters(parameters);
PetscParallelConfiguration parallelConfiguration(parameters);
FlowField *flowField = NULL;
Simulation *simulation = NULL;
std::cout << "Processor " << parameters.parallel.rank << " with index ";
std::cout << parameters.parallel.indices[0] << ",";
std::cout << parameters.parallel.indices[1] << ",";
std::cout << parameters.parallel.indices[2];
std::cout << " is computing the size of its subdomain and obtains ";
std::cout << parameters.parallel.localSize[0] << ", ";
std::cout << parameters.parallel.localSize[1] << " and ";
std::cout << parameters.parallel.localSize[2];
std::cout << ". Left neighbour: " << parameters.parallel.leftNb;
std::cout << ", right neighbour: " << parameters.parallel.rightNb;
std::cout << std::endl;
// initialise simulation
if (parameters.simulation.type=="dns"){
std::cout << "Start DNS simulation in " << parameters.geometry.dim << "D" << std::endl;
flowField = new FlowField(parameters);
if(flowField == NULL){ handleError(1, "flowField==NULL!"); }
simulation = new Simulation(parameters,*flowField);
} else {
handleError(1, "Unknown simulation type! Currently supported: dns");
}
// call initialization of simulation (initialize flow field)
if(simulation == NULL){ handleError(1, "simulation==NULL!"); }
simulation->initializeFlowField();
//flowField->getFlags().show();
FLOAT time = 0.0;
FLOAT timeVtk=parameters.vtk.interval;
FLOAT timeStdOut=parameters.stdOut.interval;
int timeSteps = 0;
// plot initial state
simulation->plotVTK(timeSteps);
// time loop
while (time < parameters.simulation.finalTime){
simulation->solveTimestep();
time += parameters.timestep.dt;
// std-out: terminal info
if ( (rank==0) && (timeStdOut <= time) ){
std::cout << "Current time: " << time << "\ttimestep: " <<
parameters.timestep.dt << std::endl;
timeStdOut += parameters.stdOut.interval;
}
// VTK output
if ( timeVtk <= time ) {
simulation->plotVTK(timeSteps);
timeVtk += parameters.vtk.interval;
}
timeSteps++;
}
// plot final output
simulation->plotVTK(timeSteps);
delete simulation; simulation=NULL;
delete flowField; flowField= NULL;
PetscFinalize();
}
int main (int argc, char *argv[]) {
// Parallelization related. Initialize and identify
// ---------------------------------------------------
int rank; // This processor's identifier
int nproc; // Number of processors in the group
PetscInitialize(&argc, &argv, "petsc_commandline_arg", PETSC_NULL);
MPI_Comm_size(PETSC_COMM_WORLD, &nproc);
MPI_Comm_rank(PETSC_COMM_WORLD, &rank);
std::cout << "Rank: " << rank << ", Nproc: " << nproc << std::endl;
//----------------------------------------------------
// read configuration and store information in parameters object
Configuration configuration(argv[1]);
Parameters parameters;
configuration.loadParameters(parameters);
PetscParallelConfiguration parallelConfiguration(parameters);
MeshsizeFactory::getInstance().initMeshsize(parameters);
FlowField *flowField = NULL;
Simulation *simulation = NULL;
#ifdef DEBUG
std::cout << "Processor " << parameters.parallel.rank << " with index ";
std::cout << parameters.parallel.indices[0] << ",";
std::cout << parameters.parallel.indices[1] << ",";
std::cout << parameters.parallel.indices[2];
std::cout << " is computing the size of its subdomain and obtains ";
std::cout << parameters.parallel.localSize[0] << ", ";
std::cout << parameters.parallel.localSize[1] << " and ";
std::cout << parameters.parallel.localSize[2];
std::cout << ". Left neighbour: " << parameters.parallel.leftNb;
std::cout << ", right neighbour: " << parameters.parallel.rightNb;
std::cout << std::endl;
std::cout << "Min. meshsizes: " << parameters.meshsize->getDxMin() << ", " << parameters.meshsize->getDyMin() << ", " << parameters.meshsize->getDzMin() << std::endl;
#endif
// initialise simulation
if (parameters.simulation.type=="turbulence"){
// TODO WS2: initialise turbulent flow field and turbulent simulation object
if(rank==0){ std::cout << "Start DNS turbulence simulation in " << parameters.geometry.dim << "D" << std::endl; }
flowField = new FlowField(parameters);
if(flowField == NULL){ handleError(1, "flowField==NULL!"); }
simulation = new Simulation(parameters,*flowField);
handleError(1,"Turbulence currently not supported yet!");
} else if (parameters.simulation.type=="dns"){
if(rank==0){ std::cout << "Start DNS simulation in " << parameters.geometry.dim << "D" << std::endl; }
flowField = new FlowField(parameters);
if(flowField == NULL){ handleError(1, "flowField==NULL!"); }
simulation = new Simulation(parameters,*flowField);
} else {
handleError(1, "Unknown simulation type! Currently supported: dns, turbulence");
}
// call initialization of simulation (initialize flow field)
if(simulation == NULL){ handleError(1, "simulation==NULL!"); }
simulation->initializeFlowField();
// flowField->getFlags().show();
// flowField->getNearWallDis().show();
// std::cout<<flowField->getNx()<<std::endl;
// std::cout<<parameters.geometry.lengthX<<std::endl;
// return 0;
FLOAT time = 0.0;
FLOAT timeStdOut=parameters.stdOut.interval;
FLOAT VTKtime=0.0;
int timeSteps = 0;
// TODO WS1: plot initial state
simulation->plotVTK(timeSteps);
// time loop
while (time < parameters.simulation.finalTime){
simulation->solveTimestep();
time += parameters.timestep.dt;
// std-out: terminal info
if ( (rank==0) && (timeStdOut <= time) ){
std::cout << "Current time: " << time << "\ttimestep: " <<
parameters.timestep.dt << std::endl;
timeStdOut += parameters.stdOut.interval;
}
timeSteps++;
// TODO WS1: trigger VTK output
if(VTKtime <= time){
simulation->plotVTK(timeSteps);
VTKtime += parameters.vtk.interval;
}
}
// TODO WS1: plot final output
simulation->plotVTK(timeSteps);
flowField->getViscosity().show();
delete simulation; simulation=NULL;
delete flowField; flowField= NULL;
PetscFinalize();
}
