SetupTimeStepperAction

Add and initialize a TimeStepper object to the simulation.

A TimeStepper is specified as an object inside the [TimeStepper] block with the [Executioner] block as shown below

[Executioner]
  type = Transient
  num_steps = 10
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'

  # Pluggable TimeStepper System
  [./TimeStepper]
    type = ConstantDT
    dt = 0.2
  [../]
[]

This action sets the TimeStepper to the transient executioner.

More information about TimeSteppers may be found on the TimeStepper syntax documentation.

Input Parameters

active__all__ If specified only the blocks named will be visited and made active
Default:__all__
C++ Type:std::vector<std::string>
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>
Controllable:No
Description:If specified blocks matching these identifiers will be skipped.
isObjectActionTrueIndicates that this is a MooseObjectAction.
Default:True
C++ Type:bool
Controllable:No
Description:Indicates that this is a MooseObjectAction.

(../../../SoftwareDownloads/moose/test/tests/time_steppers/constant_dt/constant_dt.i)

###########################################################
# This is a simple test with a time-dependent problem
# demonstrating the use of the TimeStepper system.
#
# @Requirement F1.20
###########################################################


[Mesh]
  type = GeneratedMesh
  dim = 2
  nx = 10
  ny = 10
[]

[Variables]
  [./u]
  [../]
[]

[Kernels]
  [./diff]
    type = CoefDiffusion
    variable = u
    coef = 0.1
  [../]
  [./time]
    type = TimeDerivative
    variable = u
  [../]
[]

[BCs]
  [./left]
    type = DirichletBC
    variable = u
    boundary = left
    value = 0
  [../]
  [./right]
    type = DirichletBC
    variable = u
    boundary = right
    value = 1
  [../]
[]

[Executioner]
  type = Transient
  num_steps = 10
  solve_type = PJFNK
  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'

  # Pluggable TimeStepper System
  [./TimeStepper]
    type = ConstantDT
    dt = 0.2
  [../]
[]

[Outputs]
  exodus = true
[]

Input Parameters