nonlinear_block_gs.py#
Define the NonlinearBlockGS class.
- class openmdao.solvers.nonlinear.nonlinear_block_gs.NonlinearBlockGS(**kwargs)[source]
Bases:
NonlinearSolverNonlinear block Gauss-Seidel solver.
- Parameters:
- **kwargsdict
Options dictionary.
- Attributes:
- _delta_outputs_n_1ndarray
Cached change in the full output vector for the previous iteration. Only used if the aitken acceleration option is turned on.
- _theta_n_1float
Cached relaxation factor from previous iteration. Only used if the aitken acceleration option is turned on.
- SOLVER = 'NL: NLBGS'
- __init__(**kwargs)[source]
Initialize all attributes.
- add_recorder(recorder)
Add a recorder to the solver’s RecordingManager.
- Parameters:
- recorder<CaseRecorder>
A recorder instance to be added to RecManager.
- can_solve_cycle()
Return True if this solver can solve groups with cycles.
- Returns:
- bool
True if this solver can solve groups with cycles.
- cleanup()
Clean up resources prior to exit.
- get_outputs_dir(*subdirs, mkdir=False)
Get the path under which all output files of this solver are to be placed.
- Parameters:
- *subdirsstr
Subdirectories nested under the relevant problem output directory. To create {prob_output_dir}/a/b one would pass solver.get_outputs_dir(‘a’, ‘b’).
- mkdirbool
If True, attempt to create this directory if it does not exist.
- Returns:
- pathlib.Path
The path of the outputs directory for the problem.
- get_reports_dir()
Get the path to the directory where the report files should go.
If it doesn’t exist, it will be created.
- Returns:
- str
The path to the directory where reports should be written.
- property linesearch
Get the linesearch solver associated with this solver.
- Returns:
- NonlinearSolver or None
The linesearch associated with this solver, or None if it does not support one.
- property msginfo
Return info to prepend to messages.
- Returns:
- str
Info to prepend to messages.
- record_iteration(**kwargs)
Record an iteration of the current Solver.
- Parameters:
- **kwargsdict
Keyword arguments (used for abs and rel error).
- report_failure(msg)
Report a failure that has occurred.
The msg may be printed or ignored depending on the iprint option, and may raise an AnalysisError depending on the err_on_non_converge option.
- Parameters:
- msgstr
Message indicating the failure.
- solve()
Run the solver.
- use_relevance()
Return True if relevance should be active.
- Returns:
- bool
True if relevance should be active.