parallel_group.py¶
Defines the base class for a ParallelGroup in OpenMDAO. ParallelGroup is used for systems of Components or Groups that can be run in parallel.
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class
openmdao.core.parallel_group.
ParallelGroup
[source]¶ Bases:
openmdao.core.group.Group
ParallelGroup is used for systems of Components or Groups that can be run in parallel.
Options: fd_options[‘force_fd’] : bool(False)
Set to True to finite difference this system.
fd_options[‘form’] : str(‘forward’)
Finite difference mode. (forward, backward, central) You can also set to ‘complex_step’ to peform the complex step method if your components support it.
fd_options[‘step_size’] : float(1e-06)
Default finite difference stepsize
fd_options[‘step_type’] : str(‘absolute’)
Set to absolute, relative
fd_options[‘extra_check_partials_form’] : None or str
Finite difference mode: (“forward”, “backward”, “central”, “complex_step”) During check_partial_derivatives, you can optionally do a second finite difference with a different mode.
fd_options[‘linearize’] : bool(False)
Set to True if you want linearize to be called even though you are using FD.
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apply_nonlinear
(params, unknowns, resids, metadata=None)[source]¶ Evaluates the residuals of our children systems.
Args: params : VecWrapper
VecWrapper containing parameters. (p)
unknowns : VecWrapper
VecWrapper containing outputs and states. (u)
resids : VecWrapper
VecWrapper containing residuals. (r)
metadata : dict, optional
Dictionary containing execution metadata (e.g. iteration coordinate).
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