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case_recorder.py
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case_recorder.py
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"""
Class definition for CaseRecorder, the base class for all recorders.
"""
from openmdao.core.system import System
from openmdao.core.driver import Driver
from openmdao.solvers.solver import Solver
from openmdao.core.problem import Problem
from openmdao.utils.mpi import MPI
from openmdao.utils.options_dictionary import OptionsDictionary
from openmdao.utils.record_util import check_path
# default pickle protocol version for serialization
PICKLE_VER = 4
class CaseRecorder(object):
"""
Base class for all case recorders and is not a functioning case recorder on its own.
Parameters
----------
record_viewer_data : bool, optional
If True, record data needed for visualization.
Attributes
----------
_record_viewer_data : bool
Flag indicating whether to record data needed to generate N2 diagram.
_counter : int
A global counter for execution order, used in iteration coordinate.
_inputs : dict
System inputs values, post-filtering, to be used by a derived recorder.
_outputs : dict
System or Solver output values, post-filtering, to be used by a derived recorder.
_resids : dict
System or Solver residual values, post-filtering, to be used by a derived recorder.
_abs_error : float
Solver abs_error value, to be used by a derived recorder.
_rel_error : float
Solver abs_error value, to be used by a derived recorder.
_iteration_coordinate : str
The unique iteration coordinate of where an iteration originates.
_parallel : bool
Designates if the current recorder is parallel-recording-capable.
"""
def __init__(self, record_viewer_data=True):
"""
Initialize.
"""
self._record_viewer_data = record_viewer_data
# global counter that is used in iteration coordinate
self._counter = 0
# For Systems
self._inputs = None
self._outputs = None
# For Solvers
self._abs_error = 0.0
self._rel_error = 0.0
# For Drivers, Systems, and Solvers
self._iteration_coordinate = None
# By default, this is False, but it should be set to True
# if the recorder will record data on each process to avoid
# unnecessary gathering.
self._parallel = False
def startup(self, recording_requester):
"""
Prepare for a new run and calculate inclusion lists.
Parameters
----------
recording_requester : object
Object to which this recorder is attached.
"""
self._counter = 0
def record_metadata(self, recording_requester):
"""
Route the record_metadata call to the proper method.
Parameters
----------
recording_requester : object
The object that would like to record its metadata.
"""
warn_deprecation("The 'record_metadata' function is deprecated. "
"All system and solver options are recorded automatically.")
def _get_metadata_system(self, system):
# Cannot handle PETScVector yet
from openmdao.api import PETScVector
if PETScVector and isinstance(system._outputs, PETScVector):
return None, None # Cannot handle PETScVector yet
# collect scaling arrays
scaling_vecs = {}
for kind, odict in system._vectors.items():
scaling_vecs[kind] = scaling = {}
for vecname, vec in odict.items():
scaling[vecname] = vec._scaling
# create a copy of the system's metadata excluding what is in 'options_excludes'
excludes = system.recording_options['options_excludes']
if excludes:
user_options = OptionsDictionary()
user_options._all_recordable = system.options._all_recordable
for key in system.options._dict:
if check_path(key, [], excludes, True):
user_options._dict[key] = system.options._dict[key]
user_options._read_only = system.options._read_only
return scaling_vecs, user_options
else:
return scaling_vecs, system.options
def record_metadata_system(self, system, run_number=None):
"""
Record system metadata.
Parameters
----------
system : System
The System for which to record metadata.
run_number : int or None
Number indicating which run the metadata is associated with.
None for the first run, 1 for the second, etc.
"""
raise NotImplementedError()
def record_metadata_solver(self, solver, run_number=None):
"""
Record solver metadata.
Parameters
----------
solver : Solver
The Solver for which to record metadata.
run_number : int or None
Number indicating which run the metadata is associated with.
None for the first run, 1 for the second, etc.
"""
raise NotImplementedError()
def record_iteration(self, recording_requester, data, metadata, **kwargs):
"""
Route the record_iteration call to the proper method.
Parameters
----------
recording_requester : object
System, Solver, Driver in need of recording.
data : dict
Dictionary containing desvars, objectives, constraints, responses, and System vars.
metadata : dict, optional
Dictionary containing execution metadata.
**kwargs : keyword args
Some implementations of record_iteration need additional args.
"""
if not self._parallel:
if MPI and MPI.COMM_WORLD.rank > 0:
raise RuntimeError("Non-parallel recorders should not be recording on ranks > 0")
self._counter += 1
self._iteration_coordinate = \
recording_requester._recording_iter.get_formatted_iteration_coordinate()
if isinstance(recording_requester, Driver):
self.record_iteration_driver(recording_requester, data, metadata)
elif isinstance(recording_requester, System):
self.record_iteration_system(recording_requester, data, metadata)
elif isinstance(recording_requester, Solver):
self.record_iteration_solver(recording_requester, data, metadata)
elif isinstance(recording_requester, Problem):
self.record_iteration_problem(recording_requester, data, metadata)
else:
raise ValueError("Recorders must be attached to Drivers, Systems, or Solvers.")
def record_iteration_driver(self, recording_requester, data, metadata):
"""
Record data and metadata from a Driver.
Parameters
----------
recording_requester : Driver
Driver in need of recording.
data : dict
Dictionary containing desvars, objectives, constraints, responses, and System vars.
metadata : dict
Dictionary containing execution metadata.
"""
raise NotImplementedError("record_iteration_driver has not been overridden")
def record_iteration_system(self, recording_requester, data, metadata):
"""
Record data and metadata from a System.
Parameters
----------
recording_requester : System
System in need of recording.
data : dict
Dictionary containing inputs, outputs, and residuals.
metadata : dict
Dictionary containing execution metadata.
"""
raise NotImplementedError("record_iteration_system has not been overridden")
def record_iteration_solver(self, recording_requester, data, metadata):
"""
Record data and metadata from a Solver.
Parameters
----------
recording_requester : Solver
Solver in need of recording.
data : dict
Dictionary containing outputs, residuals, and errors.
metadata : dict
Dictionary containing execution metadata.
"""
raise NotImplementedError("record_iteration_solver has not been overridden")
def record_iteration_problem(self, recording_requester, data, metadata):
"""
Record data and metadata from a Problem.
Parameters
----------
recording_requester : Problem
Problem in need of recording.
data : dict
Dictionary containing desvars, objectives, constraints.
metadata : dict
Dictionary containing execution metadata.
"""
raise NotImplementedError("record_iteration_problem has not been overridden")
def record_derivatives(self, recording_requester, data, metadata, **kwargs):
"""
Route the record_derivatives call to the proper method.
Parameters
----------
recording_requester : object
System, Solver, Driver in need of recording.
data : dict
Dictionary containing derivatives keyed by 'of,wrt' to be recorded.
metadata : dict
Dictionary containing execution metadata.
**kwargs : keyword args
Some implementations of record_derivatives need additional args.
"""
if not self._parallel:
if MPI and MPI.COMM_WORLD.rank > 0:
raise RuntimeError("Non-parallel recorders should not be recording on ranks > 0")
self._iteration_coordinate = \
recording_requester._recording_iter.get_formatted_iteration_coordinate()
self.record_derivatives_driver(recording_requester, data, metadata)
def record_derivatives_driver(self, recording_requester, data, metadata):
"""
Record derivatives data from a Driver.
Parameters
----------
recording_requester : Driver
Driver in need of recording.
data : dict
Dictionary containing derivatives keyed by 'of,wrt' to be recorded.
metadata : dict
Dictionary containing execution metadata.
"""
raise NotImplementedError("record_derivatives_driver has not been overridden")
def record_viewer_data(self, model_viewer_data):
"""
Record model viewer data.
Parameters
----------
model_viewer_data : dict
Data required to visualize the model.
"""
raise NotImplementedError("record_viewer_data has not been overridden")
def shutdown(self):
"""
Shut down the recorder.
"""
pass