AddFieldSplitAction

Add a Split object to the simulation.

Field splits are specified as an object inside the [FSP] block, nested in the [Preconditioning] block. This action adds them to the Problem.

MOOSE can use field splits with Schur decomposition to precondition nonlinear systems.

Input Parameters

  • active__all__ If specified only the blocks named will be visited and made active

    Default:__all__

    C++ Type:std::vector<std::string>

    Unit:(no unit assumed)

    Controllable:No

    Description:If specified only the blocks named will be visited and made active

  • inactiveIf specified blocks matching these identifiers will be skipped.

    C++ Type:std::vector<std::string>

    Unit:(no unit assumed)

    Controllable:No

    Description:If specified blocks matching these identifiers will be skipped.

  • nl_sysnl0The nonlinear system that this split belongs to

    Default:nl0

    C++ Type:NonlinearSystemName

    Unit:(no unit assumed)

    Controllable:No

    Description:The nonlinear system that this split belongs to

  • petsc_optionsSingleton PETSc options

    C++ Type:MultiMooseEnum

    Unit:(no unit assumed)

    Options:-dm_moose_print_embedding, -dm_view, -ksp_converged_reason, -ksp_gmres_modifiedgramschmidt, -ksp_monitor, -ksp_monitor_snes_lg-snes_ksp_ew, -ksp_snes_ew, -snes_converged_reason, -snes_ksp, -snes_ksp_ew, -snes_linesearch_monitor, -snes_mf, -snes_mf_operator, -snes_monitor, -snes_test_display, -snes_view

    Controllable:No

    Description:Singleton PETSc options

  • petsc_options_inameNames of PETSc name/value pairs

    C++ Type:MultiMooseEnum

    Unit:(no unit assumed)

    Options:-ksp_atol, -ksp_gmres_restart, -ksp_max_it, -ksp_pc_side, -ksp_rtol, -ksp_type, -mat_fd_coloring_err, -mat_fd_type, -mat_mffd_type, -pc_asm_overlap, -pc_factor_levels, -pc_factor_mat_ordering_type, -pc_hypre_boomeramg_grid_sweeps_all, -pc_hypre_boomeramg_max_iter, -pc_hypre_boomeramg_strong_threshold, -pc_hypre_type, -pc_type, -snes_atol, -snes_linesearch_type, -snes_ls, -snes_max_it, -snes_rtol, -snes_divergence_tolerance, -snes_type, -sub_ksp_type, -sub_pc_type

    Controllable:No

    Description:Names of PETSc name/value pairs

  • petsc_options_valueValues of PETSc name/value pairs (must correspond with "petsc_options_iname"

    C++ Type:std::vector<std::string>

    Unit:(no unit assumed)

    Controllable:No

    Description:Values of PETSc name/value pairs (must correspond with "petsc_options_iname"

  • varsvariables for this field

    C++ Type:std::vector<NonlinearVariableName>

    Unit:(no unit assumed)

    Controllable:No

    Description:variables for this field

Optional Parameters

  • control_tagsAdds user-defined labels for accessing object parameters via control logic.

    C++ Type:std::vector<std::string>

    Unit:(no unit assumed)

    Controllable:No

    Description:Adds user-defined labels for accessing object parameters via control logic.

  • isObjectActionTrueIndicates that this is a MooseObjectAction.

    Default:True

    C++ Type:bool

    Unit:(no unit assumed)

    Controllable:No

    Description:Indicates that this is a MooseObjectAction.

Advanced Parameters