case.py

A Case class.

class openmdao.recorders.case.Case(source, data, prom2abs, abs2prom, abs2meta, conns, auto_ivc_map, var_info, data_format=- 1)

Bases: object

Case wraps the data from a single iteration of a recording to make it more easily accessible.

Parameters:

sourcestr

The unique id of the system/solver/driver/problem that did the recording.

datadict-like

Dictionary of data for a case.

prom2abs{‘input’: dict, ‘output’: dict}

Dictionary mapping promoted names of all variables to absolute names.

abs2prom{‘input’: dict, ‘output’: dict}

Dictionary mapping absolute names of all variables to promoted names.

abs2metadict

Dictionary mapping absolute names of all variables to variable metadata.

connsdict

Dictionary of all model connections.

auto_ivc_mapdict

Dictionary that maps all auto_ivc sources to either an absolute input name for single connections or a promoted input name for multiple connections. This is for output display.

var_infodict

Dictionary with information about variables (scaling, indices, execution order).

data_formatint

A version number specifying the format of array data, if not numpy arrays.

Attributes:

sourcestr

The unique id of the system/solver/driver/problem that did the recording.

namestr

The unique identifier for this case.

parentstr

The iteration coordinate of the parent case for this iteration if any, else None.

counterint

The unique sequential index of this case in the recording.

timestampfloat

Time of execution of the case.

successstr

Success flag for the case.

msgstr

Message associated with the case.

outputsPromAbsDict

Map of outputs to values recorded.

inputsPromAbsDict or None

Map of inputs to values recorded, None if not recorded.

residualsPromAbsDict or None

Map of outputs to residuals recorded, None if not recorded.

derivativesPromAbsDict or None

Map of (output, input) to derivatives recorded, None if not recorded.

parentstr

The full unique identifier for the parent this iteration.

abs_errfloat or None

Absolute tolerance (None if not recorded).

rel_errfloat or None

Relative tolerance (None if not recorded).

_prom2abs{‘input’: dict, ‘output’: dict}

Dictionary mapping promoted names of all variables to absolute names.

_abs2prom{‘input’: dict, ‘output’: dict}

Dictionary mapping absolute names of all variables to promoted names.

_abs2metadict

Dictionary mapping absolute names of all variables to variable metadata.

_connsdict

Dictionary of all model connections.

_auto_ivc_mapdict

Dictionary that maps all auto_ivc sources to either an absolute input name for single connections or a promoted input name for multiple connections. This is for output display.

_var_infodict

Dictionary with information about variables (scaling, indices, execution order).

_format_versionint

A version number specifying the format of array data, if not numpy arrays.

__getitem__(name)

Get an output/input variable.

Parameters:

namestr

Promoted or relative variable name in the root system’s namespace.

Returns:

float or ndarray or any python object

the requested output/input variable.

__init__(source, data, prom2abs, abs2prom, abs2meta, conns, auto_ivc_map, var_info, data_format=- 1)

Initialize.

get_constraints(scaled=True, use_indices=True)

Get the values of the constraints, as seen by the driver, for this case.

Parameters:

scaledbool

If True, then return scaled values.

use_indicesbool

If True, apply indices.

Returns:

PromAbsDict

Map of variables to their values.

get_design_vars(scaled=True, use_indices=True)

Get the values of the design variables, as seen by the driver, for this case.

Parameters:

scaledbool

If True, then return scaled values.

use_indicesbool

If True, apply indices.

Returns:

PromAbsDict

Map of variables to their values.

get_objectives(scaled=True, use_indices=True)

Get the values of the objectives, as seen by the driver, for this case.

Parameters:

scaledbool

If True, then return scaled values.

use_indicesbool

If True, apply indices.

Returns:

PromAbsDict

Map of variables to their values.

get_responses(scaled=True, use_indices=True)

Get the values of the responses, as seen by the driver, for this case.

Parameters:

scaledbool

If True, then return scaled values.

use_indicesbool

If True, apply indices.

Returns:

PromAbsDict

Map of variables to their values.

get_val(name, units=None, indices=None)

Get an output/input variable.

Function is used if you want to specify display units.

Parameters:

namestr

Promoted or relative variable name in the root system’s namespace.

unitsstr, optional

Units to convert to before upon return.

indicesint or list of ints or tuple of ints or int ndarray or Iterable or None, optional

Indices or slice to return.

Returns:

float or ndarray

The requested output/input variable.

list_inputs(val=True, prom_name=True, units=False, shape=False, desc=False, hierarchical=True, print_arrays=False, tags=None, includes=None, excludes=None, is_indep_var=None, is_design_var=None, out_stream=DEFAULT_OUT_STREAM, print_min=False, print_max=False, return_format='list')

Return and optionally log a list of input names and other optional information.

Parameters:

valbool, optional

When True, display/return input values. Default is True.

prom_namebool, optional

When True, display/return the promoted name of the variable. Default is True.

unitsbool, optional

When True, display/return units. Default is False.

shapebool, optional

When True, display/return the shape of the value. Default is False.

descbool, optional

When True, display/return description. Default is False.

hierarchicalbool, optional

When True, human readable output shows variables in hierarchical format.

print_arraysbool, optional

When False, in the columnar display, just display norm of any ndarrays with size > 1. The norm is surrounded by vertical bars to indicate that it is a norm. When True, also display full values of the ndarray below the row. Format is affected by the values set with numpy.set_printoptions Default is False.

tagsstr or list of strs

User defined tags that can be used to filter what gets listed. Only inputs with the given tags will be listed. Default is None, which means there will be no filtering based on tags.

includesstr, iter of str, or None

Glob patterns for pathnames to include in the check. Default is None, which includes all.

excludesstr, iter of str, or None

Glob patterns for pathnames to exclude from the check. Default is None, which excludes nothing.

is_indep_varbool or None

If None (the default), do no additional filtering of the inputs. If True, list only inputs connected to an output tagged openmdao:indep_var. If False, list only inputs _not_ connected to outputs tagged openmdao:indep_var.

is_design_varbool or None

If None (the default), do no additional filtering of the inputs. If True, list only inputs connected to outputs that are driver design variables. If False, list only inputs _not_ connected to outputs that are driver design variables.

out_streamfile-like object

Where to send human readable output. Default is sys.stdout. Set to None to suppress.

print_minbool, optional

When true, if the input value is an array, print its smallest value.

print_maxbool, optional

When true, if the input value is an array, print its largest value.

return_formatstr

Indicates the desired format of the return value. Can have value of ‘list’ or ‘dict’. If ‘list’, the return value is a list of (name, metadata) tuples. if ‘dict’, the return value is a dictionary mapping {name: metadata}.

Returns:

list of (name, metadata) or dict of {name: metadata}

List or dict of input names and other optional information about those inputs.

list_outputs(explicit=True, implicit=True, val=True, prom_name=True, residuals=False, residuals_tol=None, units=False, shape=False, bounds=False, scaling=False, desc=False, hierarchical=True, print_arrays=False, tags=None, includes=None, excludes=None, is_indep_var=None, is_design_var=None, list_autoivcs=False, out_stream=DEFAULT_OUT_STREAM, print_min=False, print_max=False, return_format='list')

Return and optionally log a list of output names and other optional information.

Parameters:

explicitbool, optional

Include outputs from explicit components. Default is True.

implicitbool, optional

Include outputs from implicit components. Default is True.

valbool, optional

When True, display/return output values. Default is True.

prom_namebool, optional

When True, display/return the promoted name of the variable. Default is False.

residualsbool, optional

When True, display/return residual values. Default is False.

residuals_tolfloat, optional

If set, limits the output of list_outputs to only variables where the norm of the resids array is greater than the given ‘residuals_tol’. Default is None.

unitsbool, optional

When True, display/return units. Default is False.

shapebool, optional

When True, display/return the shape of the value. Default is False.

boundsbool, optional

When True, display/return bounds (lower and upper). Default is False.

scalingbool, optional

When True, display/return scaling (ref, ref0, and res_ref). Default is False.

descbool, optional

When True, display/return description. Default is False.

hierarchicalbool, optional

When True, human readable output shows variables in hierarchical format.

print_arraysbool, optional

When False, in the columnar display, just display norm of any ndarrays with size > 1. The norm is surrounded by vertical bars to indicate that it is a norm. When True, also display full values of the ndarray below the row. Format is affected by the values set with numpy.set_printoptions Default is False.

tagsstr or list of strs

User defined tags that can be used to filter what gets listed. Only outputs with the given tags will be listed. Default is None, which means there will be no filtering based on tags.

includesstr, iter of str, or None

Glob patterns for pathnames to include in the check. Default is None, which includes all.

excludesstr, iter of str, or None

Glob patterns for pathnames to exclude from the check. Default is None, which excludes nothing.

is_indep_varbool or None

If None (the default), do no additional filtering of the inputs. If True, list only inputs connected to an output tagged openmdao:indep_var. If False, list only inputs _not_ connected to outputs tagged openmdao:indep_var.

is_design_varbool or None

If None (the default), do no additional filtering of the inputs. If True, list only inputs connected to outputs that are driver design variables. If False, list only inputs _not_ connected to outputs that are driver design variables.

list_autoivcsbool

If True, include auto_ivc outputs in the listing. Defaults to False.

out_streamfile-like

Where to send human readable output. Default is sys.stdout. Set to None to suppress.

print_minbool, optional

When true, if the output value is an array, print its smallest value.

print_maxbool, optional

When true, if the output value is an array, print its largest value.

return_formatstr

Indicates the desired format of the return value. Can have value of ‘list’ or ‘dict’. If ‘list’, the return value is a list of (name, metadata) tuples. if ‘dict’, the return value is a dictionary mapping {name: metadata}.

Returns:

list of (name, metadata) or dict of {name: metadata}

List or dict of output names and other optional information about those outputs.

class openmdao.recorders.case.PromAbsDict(values, prom2abs, abs2prom, data_format=14, in_prom2abs=None, auto_ivc_map=None, var_info=None)

Bases: dict

A dictionary that enables accessing values via absolute or promoted variable names.

Parameters:

valuesarray or dict

Numpy structured array or dictionary of values.

prom2absdict

Dictionary mapping promoted names to absolute names.

abs2promdict

Dictionary mapping absolute names in the output vector to promoted names.

data_formatint

A version number specifying the OpenMDAO SQL case database version.

in_prom2absdict

Dictionary mapping promoted names in the input vector to absolute names.

auto_ivc_mapdict

Dictionary that maps all auto_ivc sources to either an absolute input name for single connections or a promoted input name for multiple connections. This is for output display.

var_infodict

Dictionary of variable metadata. Needed when there are constraint aliases.

Attributes:

_valuesarray or dict

Array or dict of values accessible via absolute variable name.

_keysarray

Absolute variable names that map to the values in the _values array.

_prom2absdict

Dictionary mapping promoted names in the output vector to absolute names.

_abs2promdict

Dictionary mapping absolute names to promoted names.

_auto_ivc_mapdict

Dictionary that maps all auto_ivc sources to either an absolute input name for single connections or a promoted input name for multiple connections. This is for output display.

_var_infodict

Dictionary of variable metadata. Needed when there are constraint aliases.

_DERIV_KEY_SEPstr

Separator character for derivative keys.

__contains__(key, /)

True if the dictionary has the specified key, else False.

__getitem__(key)

Use the variable name to get the corresponding value.

Parameters:

keystr

Absolute or promoted variable name.

Returns:

array

An array entry value that corresponds to the given variable name.

__init__(values, prom2abs, abs2prom, data_format=14, in_prom2abs=None, auto_ivc_map=None, var_info=None)

Initialize.

__iter__(/)

Implement iter(self).

__setitem__(key, value)

Set the value for the given key, which may use absolute or promoted names.

Parameters:

keystr

Absolute or promoted variable name.

valueany

value for variable

absolute_names()

Yield absolute names for variables contained in this dictionary.

Similar to keys() but with absolute variable names instead of promoted names.

Yields:

str

absolute names for variables contained in this dictionary.

clear() → None.  Remove all items from D.

copy() → a shallow copy of D

fromkeys(iterable, value=None, /)

Create a new dictionary with keys from iterable and values set to value.

get(key, default=None, /)

Return the value for key if key is in the dictionary, else default.

items() → a set-like object providing a view on D's items

keys() → a set-like object providing a view on D's keys

pop(key, default=<unrepresentable>, /)

If the key is not found, return the default if given; otherwise, raise a KeyError.

popitem(/)

Remove and return a (key, value) pair as a 2-tuple.

Pairs are returned in LIFO (last-in, first-out) order. Raises KeyError if the dict is empty.

setdefault(key, default=None, /)

Insert key with a value of default if key is not in the dictionary.

Return the value for key if key is in the dictionary, else default.

update([E, ]**F) → None.  Update D from dict/iterable E and F.

If E is present and has a .keys() method, then does: for k in E: D[k] = E[k] If E is present and lacks a .keys() method, then does: for k, v in E: D[k] = v In either case, this is followed by: for k in F: D[k] = F[k]

values() → an object providing a view on D's values