void Configuration::loadParameters(Parameters & parameters, const MPI_Comm & communicator,std::string parallelTag){
tinyxml2::XMLDocument confFile;
tinyxml2::XMLElement *node;
tinyxml2::XMLElement *subNode;
int rank;
MPI_Comm_rank(communicator, &rank);
if (rank == 0){
// Parse the configuration file and check validity
confFile.LoadFile(_filename.c_str());
if (confFile.FirstChildElement() == NULL){
handleError(1, "Error parsing the configuration file");
}
//--------------------------------------------------
// Load geometric parameters
//--------------------------------------------------
node = confFile.FirstChildElement()->FirstChildElement("geometry");
if (node == NULL){
handleError(1, "Error loading geometry properties");
}
readIntMandatory(parameters.geometry.sizeX, node, "sizeX");
readIntMandatory(parameters.geometry.sizeY, node, "sizeY");
readIntOptional (parameters.geometry.sizeZ, node, "sizeZ");
if (parameters.geometry.sizeX < 2 || parameters.geometry.sizeY < 2 ||
parameters.geometry.sizeZ < 0){
handleError(1, "Invalid size specified in configuration file");
}
parameters.geometry.dim = 0;
if (node->QueryIntAttribute("dim", &(parameters.geometry.dim)) !=
tinyxml2::XML_WRONG_ATTRIBUTE_TYPE){
if (parameters.geometry.dim == 0){
if (parameters.geometry.sizeZ == 0){
parameters.geometry.sizeZ = 1;
parameters.geometry.dim = 2;
} else {
parameters.geometry.dim = 3;
}
}
}
if (parameters.geometry.dim == 3 && parameters.geometry.sizeZ == 1){
handleError(1, "Inconsistent data: 3D geometry specified with Z size zero");
}
// Determine the sizes of the cells
readFloatOptional (parameters.geometry.dx, node, "dx");
readFloatOptional (parameters.geometry.dy, node, "dy");
readFloatOptional (parameters.geometry.dz, node, "dz");
FLOAT lengthX = 0,
lengthY = 0,
lengthZ = 0;
readFloatOptional (lengthX, node, "lengthX");
readFloatOptional (lengthY, node, "lengthY");
readFloatOptional (lengthZ, node, "lengthZ");
// Do not define both overall length and cell length
if ((parameters.geometry.dx && lengthX) || !(parameters.geometry.dx || lengthX)){
handleError(1,"Invalid definition for size. Define either length of element or length of domain for dimension X");
}
if ((parameters.geometry.dy && lengthY) || !(parameters.geometry.dy || lengthY)){
handleError(1,"Invalid definition for size. Define either length of element or length of domain for dimension Y");
}
if ((parameters.geometry.dz && lengthZ) || !(parameters.geometry.dz || lengthZ)){
handleError(1,"Invalid definition for size. Define either length of element or length of domain for dimension Z");
}
if (lengthX){
parameters.geometry.dx = lengthX / parameters.geometry.sizeX;
}
if (lengthY){
parameters.geometry.dy = lengthY / parameters.geometry.sizeY;
}
if (lengthZ){
parameters.geometry.dz = lengthZ / parameters.geometry.sizeZ;
}
// Now, the size of the elements should be set
if (parameters.geometry.dx <= 0 || parameters.geometry.dy <= 0){
handleError(1, "Invalid specification for dx or dy in the configuration file");
}
if (parameters.geometry.dz <= 0 && parameters.geometry.dim == 3){
handleError(1, "Invalid specification for dz in the configuration file");
}
_dim = parameters.geometry.dim;
//--------------------------------------------------
// Timestep parameters
//--------------------------------------------------
node = confFile.FirstChildElement()->FirstChildElement("timestep");
if (node == NULL){
handleError(1, "Error loading timestep parameters");
}
readFloatOptional(parameters.timestep.dt, node, "dt", 1);
readFloatOptional(parameters.timestep.tau, node, "tau", 0.5);
//--------------------------------------------------
// Flow parameters
//--------------------------------------------------
node = confFile.FirstChildElement()->FirstChildElement("flow");
if (node == NULL){
handleError(1, "Error loading flow parameters");
}
readFloatMandatory(parameters.flow.Re, node, "Re");
//--------------------------------------------------
// Solver parameters
//--------------------------------------------------
node = confFile.FirstChildElement()->FirstChildElement("solver");
if (node == NULL){
handleError(1, "Error loading solver parameters");
}
readFloatMandatory(parameters.solver.gamma, node, "gamma");
readIntOptional (parameters.solver.maxIterations, node, "maxIterations");
//--------------------------------------------------
// Environmental parameters
//--------------------------------------------------
node = confFile.FirstChildElement()->FirstChildElement("environment");
if (node == NULL){
handleError(1, "Error loading environmental parameters");
}
readFloatOptional(parameters.environment.gx, node, "gx");
readFloatOptional(parameters.environment.gy, node, "gy");
readFloatOptional(parameters.environment.gz, node, "gz");
//--------------------------------------------------
// Simulation parameters
//--------------------------------------------------
node = confFile.FirstChildElement()->FirstChildElement("simulation");
if (node == NULL){
handleError(1, "Error loading simulation parameters");
}
readFloatMandatory(parameters.simulation.finalTime, node, "finalTime");
subNode = node->FirstChildElement("type");
if (subNode != NULL){
readStringMandatory(parameters.simulation.type, subNode);
} else {
handleError (1, "Missing type in simulation parameters");
}
subNode = node->FirstChildElement("scenario");
if (subNode != NULL){
readStringMandatory(parameters.simulation.scenario, subNode);
} else {
handleError (1, "Missing scenario in simulation parameters");
}
//--------------------------------------------------
// VTK parameters
//--------------------------------------------------
node = confFile.FirstChildElement()->FirstChildElement("vtk");
if (node == NULL){
handleError(1, "Error loading VTK parameters");
}
readFloatOptional(parameters.vtk.interval, node, "interval");
readStringMandatory(parameters.vtk.prefix, node);
//--------------------------------------------------
// StdOut parameters
//--------------------------------------------------
node = confFile.FirstChildElement()->FirstChildElement("stdOut");
if (node == NULL){
handleError(1, "Error loading StdOut parameters");
}
// If no value given, print every step
readIntOptional(parameters.stdOut.interval, node, "interval", 1);
//--------------------------------------------------
// Parallel parameters
//--------------------------------------------------
node = confFile.FirstChildElement()->FirstChildElement(parallelTag.c_str());
if (node == NULL){
handleError(1, "Error loading parallel parameters");
}
readIntOptional(parameters.parallel.numProcessors[0], node, "numProcessorsX", 1);
readIntOptional(parameters.parallel.numProcessors[1], node, "numProcessorsY", 1);
readIntOptional(parameters.parallel.numProcessors[2], node, "numProcessorsZ", 1);
// Start neighbors on null in case that no parallel configuration is used later.
parameters.parallel.leftNb = MPI_PROC_NULL;
parameters.parallel.rightNb = MPI_PROC_NULL;
parameters.parallel.bottomNb = MPI_PROC_NULL;
parameters.parallel.topNb = MPI_PROC_NULL;
parameters.parallel.frontNb = MPI_PROC_NULL;
parameters.parallel.backNb = MPI_PROC_NULL;
// Yet more parameters initialized in case that no parallel configuration is applied
parameters.parallel.localSize[0] = parameters.geometry.sizeX;
parameters.parallel.localSize[1] = parameters.geometry.sizeY;
parameters.parallel.localSize[2] = parameters.geometry.sizeZ;
parameters.parallel.firstCorner[0] = 0;
parameters.parallel.firstCorner[1] = 0;
parameters.parallel.firstCorner[2] = 0;
// VTK output is named after the rank, so we define it here, again, in case that it's not
// initialized anywhere else.
parameters.parallel.rank = rank;
//--------------------------------------------------
// Walls
//--------------------------------------------------
node = confFile.FirstChildElement()->FirstChildElement("walls");
if (node == NULL){
handleError(1, "Error loading wall parameters");
}
readBoolOptional(parameters.walls.periodicX, node, "periodicX");
readBoolOptional(parameters.walls.periodicY, node, "periodicY");
readBoolOptional(parameters.walls.periodicZ, node, "periodicZ");
tinyxml2::XMLElement *wall;
wall = node->FirstChildElement("left");
if (wall != NULL){
readWall(wall, parameters.walls.vectorLeft, parameters.walls.scalarLeft);
}
wall = node->FirstChildElement("right");
if (wall != NULL){
readWall(wall, parameters.walls.vectorRight, parameters.walls.scalarRight);
}
wall = node->FirstChildElement("bottom");
if (wall != NULL){
readWall(wall, parameters.walls.vectorBottom, parameters.walls.scalarBottom);
}
wall = node->FirstChildElement("top");
if (wall != NULL){
readWall(wall, parameters.walls.vectorTop, parameters.walls.scalarTop);
}
wall = node->FirstChildElement("front");
if (wall != NULL){
readWall(wall, parameters.walls.vectorFront, parameters.walls.scalarFront);
}
wall = node->FirstChildElement("back");
if (wall != NULL){
readWall(wall, parameters.walls.vectorBack, parameters.walls.scalarBack);
}
// Set the scalar values to zero
parameters.walls.scalarLeft = 0.0;
parameters.walls.scalarRight = 0.0;
parameters.walls.scalarBottom = 0.0;
parameters.walls.scalarTop = 0.0;
parameters.walls.scalarFront = 0.0;
parameters.walls.scalarBack = 0.0;
//--------------------------------------------------
// Lattice Boltzmann
//--------------------------------------------------
node = confFile.FirstChildElement()->FirstChildElement("lb");
if (node != NULL){
readFloatMandatory(parameters.lb.tau, node, "tau");
parameters.lb.reciprocalTau = 1.0 / parameters.lb.tau;
parameters.lb.viscosity = 1.0 / 3.0 * (parameters.lb.tau - 0.5);
}
//--------------------------------------------------
// Backward facing step
//--------------------------------------------------
parameters.bfStep.xRatio = -1.0;
parameters.bfStep.yRatio = -1.0;
node = confFile.FirstChildElement()->FirstChildElement("backwardFacingStep");
if (node != NULL){
readFloatMandatory(parameters.bfStep.xRatio, node, "xRatio");
readFloatMandatory(parameters.bfStep.yRatio, node, "yRatio");
}
parameters.bfStep.width = (int)(parameters.geometry.sizeX * parameters.bfStep.xRatio);
parameters.bfStep.height = (int)(parameters.geometry.sizeY * parameters.bfStep.yRatio);
//--------------------------------------------------
// Coupling
//--------------------------------------------------
node = confFile.FirstChildElement()->FirstChildElement("coupling");
if (node != NULL){
int value;
readIntMandatory(value, node, "offsetNSX");
parameters.coupling.offsetNS[0] = value + 2;
readIntMandatory(value, node, "offsetNSY");
parameters.coupling.offsetNS[1] = value + 2;
readIntMandatory(value, node, "offsetNSZ");
parameters.coupling.offsetNS[2] = value + 2;
readIntMandatory(parameters.coupling.sizeNS[0], node, "sizeNSX");
readIntMandatory(parameters.coupling.sizeNS[1], node, "sizeNSY");
readIntMandatory(parameters.coupling.sizeNS[2], node, "sizeNSZ");
readIntMandatory(parameters.coupling.ratio, node, "ratio");
readFloatMandatory(parameters.coupling.refLength, node, "refLength");
readIntOptional (parameters.coupling.overlap, node, "overlap", 2);
readBoolOptional (parameters.coupling.set, node, "active", true);
} else {
parameters.coupling.set = false;
}
//--------------------------------------------------
// Time dependency
//--------------------------------------------------
node = confFile.FirstChildElement()->FirstChildElement("timeDependency");
if (node != NULL){
FLOAT value;
readFloatOptional(value, node, "period", 0);
parameters.timeDependency.period = value;
if (value) {
parameters.timeDependency.reciprocalPeriod = 1.0 / value;
} else {
parameters.timeDependency.reciprocalPeriod = 0.0;
}
}
}
// Broadcasting of the values
MPI_Bcast(&(parameters.geometry.sizeX), 1, MPI_INT, 0, communicator);
MPI_Bcast(&(parameters.geometry.sizeY), 1, MPI_INT, 0, communicator);
MPI_Bcast(&(parameters.geometry.sizeZ), 1, MPI_INT, 0, communicator);
MPI_Bcast(&(parameters.geometry.dim), 1, MPI_INT, 0, communicator);
MPI_Bcast(&(parameters.geometry.dx), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.geometry.dy), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.geometry.dz), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.timestep.dt), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.timestep.tau), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.flow.Re), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.solver.gamma), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.solver.maxIterations), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.environment.gx), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.environment.gy), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.environment.gz), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.simulation.finalTime), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.vtk.interval), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.stdOut.interval), 1, MPI_INT, 0, communicator);
broadcastString (parameters.vtk.prefix, communicator);
broadcastString (parameters.simulation.type, communicator);
broadcastString (parameters.simulation.scenario, communicator);
MPI_Bcast(&(parameters.lb.tau), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.lb.reciprocalTau), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.lb.viscosity), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.bfStep.xRatio), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.bfStep.yRatio), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.bfStep.width), 1, MPI_INT, 0, communicator);
MPI_Bcast(&(parameters.bfStep.height), 1, MPI_INT, 0, communicator);
MPI_Bcast(parameters.parallel.numProcessors, 3, MPI_INT, 0, communicator);
MPI_Bcast(&(parameters.walls.scalarLeft), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.walls.scalarRight), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.walls.scalarBottom), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.walls.scalarTop), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.walls.scalarFront), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.walls.scalarBack), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(parameters.walls.vectorLeft, 3, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(parameters.walls.vectorRight, 3, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(parameters.walls.vectorBottom, 3, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(parameters.walls.vectorTop, 3, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(parameters.walls.vectorFront, 3, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(parameters.walls.vectorBack, 3, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(parameters.coupling.offsetNS, 3, MPI_INT, 0, communicator);
MPI_Bcast(parameters.coupling.sizeNS, 3, MPI_INT, 0, communicator);
MPI_Bcast(&(parameters.coupling.ratio), 1, MPI_INT, 0, communicator);
MPI_Bcast(&(parameters.coupling.overlap), 1, MPI_INT, 0, communicator);
MPI_Bcast(&(parameters.coupling.refLength), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.coupling.set), sizeof(bool), MPI_BYTE, 0, communicator);
MPI_Bcast(&(parameters.timeDependency.period), 1, MY_MPI_FLOAT, 0, communicator);
// No bool data type in C MPI. Therefore, using a bad method. This will not work if boolean is
// represented differently in cores in the network
MPI_Bcast(&(parameters.walls.periodicX), sizeof(bool), MPI_BYTE, 0, communicator);
MPI_Bcast(&(parameters.walls.periodicY), sizeof(bool), MPI_BYTE, 0, communicator);
MPI_Bcast(&(parameters.walls.periodicZ), sizeof(bool), MPI_BYTE, 0, communicator);
}
void Configuration::loadParameters(Parameters & parameters, const MPI_Comm & communicator){
tinyxml2::XMLDocument confFile;
tinyxml2::XMLElement *node;
tinyxml2::XMLElement *subNode;
int rank;
MPI_Comm_rank(communicator, &rank);
// we only read on rank 0; afterwards, all configuration parameters are broadcasted to all processes.
// So, if you add new parameters in the configuration, make sure to broadcast them to the other processes!
if (rank == 0){
// Parse the configuration file and check validity
confFile.LoadFile(_filename.c_str());
if (confFile.FirstChildElement() == NULL){
handleError(1, "Error parsing the configuration file");
}
//--------------------------------------------------
// Load geometric parameters
//--------------------------------------------------
node = confFile.FirstChildElement()->FirstChildElement("geometry");
if (node == NULL){
handleError(1, "Error loading geometry properties");
}
readIntMandatory(parameters.geometry.sizeX, node, "sizeX");
readIntMandatory(parameters.geometry.sizeY, node, "sizeY");
readIntOptional (parameters.geometry.sizeZ, node, "sizeZ");
if (parameters.geometry.sizeX < 2 || parameters.geometry.sizeY < 2 ||
parameters.geometry.sizeZ < 0){
handleError(1, "Invalid size specified in configuration file");
}
parameters.geometry.dim = 0;
if (node->QueryIntAttribute("dim", &(parameters.geometry.dim)) !=
tinyxml2::XML_WRONG_ATTRIBUTE_TYPE){
if (parameters.geometry.dim == 0){
if (parameters.geometry.sizeZ == 0){
parameters.geometry.sizeZ = 1;
parameters.geometry.dim = 2;
} else {
parameters.geometry.dim = 3;
}
}
}
if (parameters.geometry.dim == 3 && parameters.geometry.sizeZ == 1){
handleError(1, "Inconsistent data: 3D geometry specified with Z size zero");
}
// Determine the sizes of the cells
readFloatMandatory (parameters.geometry.lengthX, node, "lengthX");
readFloatMandatory (parameters.geometry.lengthY, node, "lengthY");
readFloatMandatory (parameters.geometry.lengthZ, node, "lengthZ");
// read geometry->meshsize parameters
std::string meshsizeType="";
subNode = node->FirstChildElement("mesh");
readStringMandatory(meshsizeType,subNode);
if (meshsizeType == "uniform"){
parameters.geometry.meshsizeType = Uniform;
} else if (meshsizeType == "stretched"){
parameters.geometry.meshsizeType = TanhStretching;
bool buffer=false;
readBoolMandatory(buffer, node,"stretchX");
parameters.geometry.stretchX = (int) buffer;
readBoolMandatory(buffer, node,"stretchY");
parameters.geometry.stretchY = (int) buffer;
if (parameters.geometry.dim == 3){
readBoolMandatory(buffer, node,"stretchZ");
parameters.geometry.stretchZ = (int) buffer;
} else {
parameters.geometry.stretchZ = false;
}
} else {
handleError(1, "Unknown 'mesh'!");
}
// Now, the size of the elements should be set
_dim = parameters.geometry.dim;
//--------------------------------------------------
// Timestep parameters
//--------------------------------------------------
node = confFile.FirstChildElement()->FirstChildElement("timestep");
if (node == NULL){
handleError(1, "Error loading timestep parameters");
}
readFloatOptional(parameters.timestep.dt, node, "dt", 1);
readFloatOptional(parameters.timestep.tau, node, "tau", 0.5);
//--------------------------------------------------
// Flow parameters
//--------------------------------------------------
node = confFile.FirstChildElement()->FirstChildElement("flow");
if (node == NULL){
handleError(1, "Error loading flow parameters");
}
readFloatMandatory(parameters.flow.Re, node, "Re");
//--------------------------------------------------
// Solver parameters
//--------------------------------------------------
node = confFile.FirstChildElement()->FirstChildElement("solver");
if (node == NULL){
handleError(1, "Error loading solver parameters");
}
readFloatMandatory(parameters.solver.gamma, node, "gamma");
readIntOptional (parameters.solver.maxIterations, node, "maxIterations");
//--------------------------------------------------
// Environmental parameters
//--------------------------------------------------
node = confFile.FirstChildElement()->FirstChildElement("environment");
if (node == NULL){
handleError(1, "Error loading environmental parameters");
}
readFloatOptional(parameters.environment.gx, node, "gx");
readFloatOptional(parameters.environment.gy, node, "gy");
readFloatOptional(parameters.environment.gz, node, "gz");
//--------------------------------------------------
// Simulation parameters
//--------------------------------------------------
node = confFile.FirstChildElement()->FirstChildElement("simulation");
if (node == NULL){
handleError(1, "Error loading simulation parameters");
}
readFloatMandatory(parameters.simulation.finalTime, node, "finalTime");
subNode = node->FirstChildElement("type");
if (subNode != NULL){
readStringMandatory(parameters.simulation.type, subNode);
} else {
handleError (1, "Missing type in simulation parameters");
}
subNode = node->FirstChildElement("scenario");
if (subNode != NULL){
readStringMandatory(parameters.simulation.scenario, subNode);
} else {
handleError (1, "Missing scenario in simulation parameters");
}
//--------------------------------------------------
// VTK parameters
//--------------------------------------------------
node = confFile.FirstChildElement()->FirstChildElement("vtk");
if (node == NULL){
handleError(1, "Error loading VTK parameters");
}
readFloatOptional(parameters.vtk.interval, node, "interval");
readStringMandatory(parameters.vtk.prefix, node);
//--------------------------------------------------
// StdOut parameters
//--------------------------------------------------
node = confFile.FirstChildElement()->FirstChildElement("stdOut");
if (node == NULL){
handleError(1, "Error loading StdOut parameters");
}
// If no value given, print every step
readFloatOptional(parameters.stdOut.interval, node, "interval", 1);
//--------------------------------------------------
// Parallel parameters
//--------------------------------------------------
node = confFile.FirstChildElement()->FirstChildElement("parallel");
if (node == NULL){
handleError(1, "Error loading parallel parameters");
}
readIntOptional(parameters.parallel.numProcessors[0], node, "numProcessorsX", 1);
readIntOptional(parameters.parallel.numProcessors[1], node, "numProcessorsY", 1);
readIntOptional(parameters.parallel.numProcessors[2], node, "numProcessorsZ", 1);
// Start neighbors on null in case that no parallel configuration is used later.
parameters.parallel.leftNb = MPI_PROC_NULL;
parameters.parallel.rightNb = MPI_PROC_NULL;
parameters.parallel.bottomNb = MPI_PROC_NULL;
parameters.parallel.topNb = MPI_PROC_NULL;
parameters.parallel.frontNb = MPI_PROC_NULL;
parameters.parallel.backNb = MPI_PROC_NULL;
// Yet more parameters initialized in case that no parallel configuration is applied
parameters.parallel.localSize[0] = parameters.geometry.sizeX;
parameters.parallel.localSize[1] = parameters.geometry.sizeY;
parameters.parallel.localSize[2] = parameters.geometry.sizeZ;
parameters.parallel.firstCorner[0] = 0;
parameters.parallel.firstCorner[1] = 0;
parameters.parallel.firstCorner[2] = 0;
// VTK output is named after the rank, so we define it here, again, in case that it's not
// initialized anywhere else.
parameters.parallel.rank = rank;
//--------------------------------------------------
// Walls
//--------------------------------------------------
node = confFile.FirstChildElement()->FirstChildElement("walls");
if (node == NULL){
handleError(1, "Error loading wall parameters");
}
tinyxml2::XMLElement *wall;
wall = node->FirstChildElement("left");
if (wall != NULL){
readWall(wall, parameters.walls.vectorLeft, parameters.walls.scalarLeft);
}
wall = node->FirstChildElement("right");
if (wall != NULL){
readWall(wall, parameters.walls.vectorRight, parameters.walls.scalarRight);
}
wall = node->FirstChildElement("bottom");
if (wall != NULL){
readWall(wall, parameters.walls.vectorBottom, parameters.walls.scalarBottom);
}
wall = node->FirstChildElement("top");
if (wall != NULL){
readWall(wall, parameters.walls.vectorTop, parameters.walls.scalarTop);
}
wall = node->FirstChildElement("front");
if (wall != NULL){
readWall(wall, parameters.walls.vectorFront, parameters.walls.scalarFront);
}
wall = node->FirstChildElement("back");
if (wall != NULL){
readWall(wall, parameters.walls.vectorBack, parameters.walls.scalarBack);
}
// Set the scalar values to zero;
// do not set the left pressure value to zero, if we have a pressure-channel
// scenario -> in this case, we need a fixed pressure value there
if (parameters.simulation.scenario != "pressure-channel" ){
parameters.walls.scalarLeft = 0.0;
}
parameters.walls.scalarRight = 0.0;
parameters.walls.scalarBottom = 0.0;
parameters.walls.scalarTop = 0.0;
parameters.walls.scalarFront = 0.0;
parameters.walls.scalarBack = 0.0;
//--------------------------------------------------
// Backward facing step
//--------------------------------------------------
parameters.bfStep.xRatio = -1.0;
parameters.bfStep.yRatio = -1.0;
node = confFile.FirstChildElement()->FirstChildElement("backwardFacingStep");
if (node != NULL){
readFloatMandatory(parameters.bfStep.xRatio, node, "xRatio");
readFloatMandatory(parameters.bfStep.yRatio, node, "yRatio");
}
//------------------------------------------------------
// TODO WS2: Turbulence
//------------------------------------------------------
}
// Broadcasting of the values
MPI_Bcast(&(parameters.geometry.sizeX), 1, MPI_INT, 0, communicator);
MPI_Bcast(&(parameters.geometry.sizeY), 1, MPI_INT, 0, communicator);
MPI_Bcast(&(parameters.geometry.sizeZ), 1, MPI_INT, 0, communicator);
MPI_Bcast(&(parameters.geometry.dim), 1, MPI_INT, 0, communicator);
MPI_Bcast(&(parameters.geometry.meshsizeType), 1, MPI_INT, 0, communicator);
MPI_Bcast(&(parameters.geometry.stretchX),1,MPI_INT,0,communicator);
MPI_Bcast(&(parameters.geometry.stretchY),1,MPI_INT,0,communicator);
MPI_Bcast(&(parameters.geometry.stretchZ),1,MPI_INT,0,communicator);
MPI_Bcast(&(parameters.geometry.lengthX), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.geometry.lengthY), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.geometry.lengthZ), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.timestep.dt), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.timestep.tau), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.flow.Re), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.solver.gamma), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.solver.maxIterations), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.environment.gx), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.environment.gy), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.environment.gz), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.simulation.finalTime), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.vtk.interval), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.stdOut.interval), 1, MPI_INT, 0, communicator);
broadcastString (parameters.vtk.prefix, communicator);
broadcastString (parameters.simulation.type, communicator);
broadcastString (parameters.simulation.scenario, communicator);
MPI_Bcast(&(parameters.bfStep.xRatio), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.bfStep.yRatio), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(parameters.parallel.numProcessors, 3, MPI_INT, 0, communicator);
MPI_Bcast(&(parameters.walls.scalarLeft), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.walls.scalarRight), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.walls.scalarBottom), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.walls.scalarTop), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.walls.scalarFront), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(&(parameters.walls.scalarBack), 1, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(parameters.walls.vectorLeft, 3, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(parameters.walls.vectorRight, 3, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(parameters.walls.vectorBottom, 3, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(parameters.walls.vectorTop, 3, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(parameters.walls.vectorFront, 3, MY_MPI_FLOAT, 0, communicator);
MPI_Bcast(parameters.walls.vectorBack, 3, MY_MPI_FLOAT, 0, communicator);
// TODO WS2: broadcast turbulence parameters
}