def __CreateSolver(self, external_model_part=None):
""" Create the Solver (and create and import the ModelPart if it is not passed from outside) """
if external_model_part != None:
# This is a temporary solution until the importing of the ModelPart
# is removed from the solver (needed e.g. for Optimization)
if (type(external_model_part) != KratosMultiphysics.ModelPart):
raise Exception(
"Input is expected to be provided as a Kratos ModelPart object"
)
self.using_external_model_part = True
else:
self.using_external_model_part = False
## Get echo level and parallel type
self.echo_level = self.ProjectParameters["problem_data"][
"echo_level"].GetInt()
self.parallel_type = self.ProjectParameters["problem_data"][
"parallel_type"].GetString()
## Import parallel modules if needed
if (self.parallel_type == "MPI"):
import KratosMultiphysics.mpi as KratosMPI
import KratosMultiphysics.MetisApplication as MetisApplication
import KratosMultiphysics.TrilinosApplication as TrilinosApplication
self.is_printing_rank = (KratosMPI.mpi.rank == 0)
else:
self.is_printing_rank = True
## Structure model part definition
if self.using_external_model_part:
self.main_model_part = external_model_part
else:
main_model_part_name = self.ProjectParameters["problem_data"][
"model_part_name"].GetString()
self.main_model_part = KratosMultiphysics.ModelPart(
main_model_part_name)
self.main_model_part.ProcessInfo.SetValue(
KratosMultiphysics.DOMAIN_SIZE,
self.ProjectParameters["problem_data"]["domain_size"].GetInt())
## Solver construction
import python_solvers_wrapper_mesh_motion
self.solver = python_solvers_wrapper_mesh_motion.CreateSolver(
self.main_model_part, self.ProjectParameters)
## Adds the necessary variables to the model_part only if they don't exist
self.solver.AddVariables()
if not self.using_external_model_part:
## Read the model - note that SetBufferSize is done here
self.solver.ReadModelPart() # TODO move to global instance
def __init__(self, model_part, custom_settings):
# remove the ale_settings so we can use the navier stokes constructor
navier_stokes_settings = custom_settings.Clone()
navier_stokes_settings.RemoveValue("ale_settings")
navier_stokes_settings["solver_type"].SetString("Monolithic")
super(ALENavierStokesSolverVMSMonolithic, self).__init__(model_part, navier_stokes_settings)
# create mesh motion solver
custom_settings.AddEmptyValue("problem_data")
custom_settings["problem_data"].AddEmptyValue("parallel_type")
custom_settings["problem_data"]["parallel_type"].SetString("OpenMP")
custom_settings.AddValue("solver_settings", custom_settings["ale_settings"])
custom_settings.RemoveValue("ale_settings")
import python_solvers_wrapper_mesh_motion
self.ale_solver = python_solvers_wrapper_mesh_motion.CreateSolver(self.main_model_part, custom_settings)
print("::[ALENavierStokesSolverVMSMonolithic]:: Construction finished")
def __init__(self, model_part, custom_settings):
# remove the ale_settings so we can use the navier stokes constructor
navier_stokes_settings = custom_settings.Clone()
navier_stokes_settings.RemoveValue("ale_settings")
navier_stokes_settings["solver_type"].SetString("FractionalStep")
super(ALETrilinosNavierStokesSolverFractionalStep,
self).__init__(model_part, navier_stokes_settings)
# create ale solver
custom_settings.AddEmptyValue("problem_data")
custom_settings["problem_data"].AddEmptyValue("parallel_type")
custom_settings["problem_data"]["parallel_type"].SetString("MPI")
custom_settings.AddValue("solver_settings",
custom_settings["ale_settings"])
custom_settings.RemoveValue("ale_settings")
import python_solvers_wrapper_mesh_motion
self.ale_solver = python_solvers_wrapper_mesh_motion.CreateSolver(
self.main_model_part, custom_settings)
if KratosMPI.mpi.rank == 0:
print(
"::[ALETrilinosNavierStokesSolverFractionalStep]:: Construction finished"
)
def _CreateSolver(self):
""" Create the Solver (and create and import the ModelPart if it is not alread in the model) """
## Solver construction
import python_solvers_wrapper_mesh_motion
return python_solvers_wrapper_mesh_motion.CreateSolver(self.model, self.project_parameters)
ProjectParameters["problem_data"]["model_part_name"].GetString())
main_model_part.ProcessInfo.SetValue(
DOMAIN_SIZE, ProjectParameters["problem_data"]["domain_size"].GetInt())
###TODO replace this "model" for real one once available
Model = {
ProjectParameters["problem_data"]["model_part_name"].GetString():
main_model_part
}
## Solver construction
#solver_module = __import__(ProjectParameters["solver_settings"]["solver_type"].GetString())
#solver = solver_module.CreateSolver(main_model_part, ProjectParameters["solver_settings"])
import python_solvers_wrapper_mesh_motion
solver = python_solvers_wrapper_mesh_motion.CreateSolver(
main_model_part, ProjectParameters)
solver.AddVariables()
## Read the model - note that SetBufferSize is done here
solver.ImportModelPart()
## Add AddDofs
solver.AddDofs()
## Initialize GiD I/O
from gid_output_process import GiDOutputProcess
gid_output = GiDOutputProcess(
solver.GetComputingModelPart(),
ProjectParameters["problem_data"]["problem_name"].GetString(),
ProjectParameters["output_configuration"])
def __init__(self, model, project_parameters):
super(PartitionedFSIBaseSolver,self).__init__(model, project_parameters)
# Initial tests
start_time_structure = self.settings["structure_solver_settings"]["problem_data"]["start_time"].GetDouble()
start_time_fluid = self.settings["fluid_solver_settings"]["problem_data"]["start_time"].GetDouble()
end_time_structure = self.settings["structure_solver_settings"]["problem_data"]["end_time"].GetDouble()
end_time_fluid = self.settings["fluid_solver_settings"]["problem_data"]["end_time"].GetDouble()
if start_time_structure != start_time_fluid:
raise Exception('Different initial time among subdomains.')
if end_time_structure != end_time_fluid:
raise Exception('Different final time among subdomains.')
solver_settings = self.settings["fluid_solver_settings"]["solver_settings"]
problem_data = self.settings["fluid_solver_settings"]["problem_data"]
if solver_settings.Has("model_part_name"):
self.fluid_model_part_name = solver_settings["model_part_name"].GetString()
elif problem_data.Has("model_part_name"):
self.fluid_model_part_name = problem_data["model_part_name"].GetString()
# Backwards compatibility: copy the name to the solver section so that the fluid solver can read it
solver_settings.AddEmptyValue("model_part_name")
solver_settings["model_part_name"].SetString(self.fluid_model_part_name)
# Backwards compatibility: copy the domain size to the solver section
if not solver_settings.Has("domain_size"):
solver_settings.AddEmptyValue("domain_size")
solver_settings["domain_size"].SetInt(problem_data["domain_size"].GetInt())
# Time stepping checks (no sub-stepping between subdomains has been implemented yed)
time_step_structure = self.settings["structure_solver_settings"]["problem_data"]["time_step"].GetDouble()
# If automatic time stepping has been selected in the fluid domain, deactivate it and use the structure time step
if (self.settings["fluid_solver_settings"]["solver_settings"]["time_stepping"]["automatic_time_step"].GetBool()):
self.settings["fluid_solver_settings"]["solver_settings"]["time_stepping"]["automatic_time_step"].SetBool(False)
time_step_fluid = time_step_structure
self._PrintWarningOnRankZero("::[PartitionedFSIBaseSolver]::", "Automatic fluid time stepping cannot be used. Setting structure time step as fluid time step.")
else:
time_step_fluid = self.settings["fluid_solver_settings"]["solver_settings"]["time_stepping"]["time_step"].GetDouble()
if time_step_structure != time_step_fluid:
raise Exception('Different time step among subdomains! No sub-stepping implemented yet.')
self.time_step = time_step_fluid
# Auxiliar variables
coupling_solver_settings = self.settings["coupling_solver_settings"]["solver_settings"]
self.max_nl_it = coupling_solver_settings["nl_max_it"].GetInt()
self.nl_tol = coupling_solver_settings["nl_tol"].GetDouble()
self.solve_mesh_at_each_iteration = coupling_solver_settings["solve_mesh_at_each_iteration"].GetBool()
self.coupling_algorithm = coupling_solver_settings["coupling_scheme"].GetString()
self.fluid_interface_submodelpart_name = coupling_solver_settings["fluid_interfaces_list"][0].GetString()
self.structure_interface_submodelpart_name = coupling_solver_settings["structure_interfaces_list"][0].GetString()
coupling_utility_parameters = coupling_solver_settings["coupling_strategy"]
# Construct the structure solver
structural_solver_settings = self.settings["structure_solver_settings"]["solver_settings"]
if not structural_solver_settings.Has("time_stepping"):
self._PrintInfoOnRankZero("::[PartitionedFSIBaseSolver]::", "Using the old way to pass the time_step, this will be removed!")
time_stepping_params = KratosMultiphysics.Parameters("{}")
time_stepping_params.AddValue("time_step", self.settings["structure_solver_settings"]["problem_data"]["time_step"])
structural_solver_settings.AddValue("time_stepping", time_stepping_params)
if not structural_solver_settings.Has("domain_size"):
self._PrintInfoOnRankZero("::[PartitionedFSIBaseSolver]::", "Using the old way to pass the domain_size, this will be removed!")
structural_solver_settings.AddEmptyValue("domain_size")
structural_solver_settings["domain_size"].SetInt(self.settings["structure_solver_settings"]["problem_data"]["domain_size"].GetInt())
if not structural_solver_settings.Has("model_part_name"):
self._PrintInfoOnRankZero("::[PartitionedFSIBaseSolver]::", "Using the old way to pass the model_part_name, this will be removed!")
structural_solver_settings.AddEmptyValue("model_part_name")
structural_solver_settings["model_part_name"].SetString(self.settings["structure_solver_settings"]["problem_data"]["model_part_name"].GetString())
self.structure_solver = python_solvers_wrapper_structural.CreateSolver(self.model,
self.settings["structure_solver_settings"])
self._PrintInfoOnRankZero("::[PartitionedFSIBaseSolver]::", "Structure solver construction finished.")
# Construct the fluid solver
self.fluid_solver = python_solvers_wrapper_fluid.CreateSolver(self.model,
self.settings["fluid_solver_settings"])
self._PrintInfoOnRankZero("::[PartitionedFSIBaseSolver]::", "Fluid solver construction finished.")
# Construct the coupling partitioned strategy
self.coupling_utility = convergence_accelerator_factory.CreateConvergenceAccelerator(coupling_utility_parameters)
self._PrintInfoOnRankZero("::[PartitionedFSIBaseSolver]::", "Coupling strategy construction finished.")
# Construct the ALE mesh solver
mesh_solver_settings = KratosMultiphysics.Parameters("{}")
mesh_solver_settings.AddEmptyValue("problem_data")
mesh_solver_settings.AddEmptyValue("solver_settings")
parallel_type = KratosMultiphysics.Parameters('''{"parallel_type" : ""}''')
parallel_type["parallel_type"].SetString(self.settings["fluid_solver_settings"]["problem_data"]["parallel_type"].GetString())
mesh_solver_type = KratosMultiphysics.Parameters('''{"solver_type" : ""}''')
mesh_solver_type["solver_type"].SetString(self.settings["coupling_solver_settings"]["solver_settings"]["mesh_solver"].GetString())
mesh_solver_settings["problem_data"] = parallel_type
mesh_solver_settings["solver_settings"] = mesh_solver_type
#TODO: UPDATE TO MODEL ONCE MESH MOVING APPLICATION SUPPORTS IT
self.mesh_solver = python_solvers_wrapper_mesh_motion.CreateSolver(self.fluid_solver.main_model_part,
mesh_solver_settings)
self._PrintInfoOnRankZero("::[PartitionedFSIBaseSolver]::", "ALE mesh solver construction finished.")
self._PrintInfoOnRankZero("::[PartitionedFSIBaseSolver]::", "Partitioned FSI base solver construction finished.")
