Application System

Description

The Application block within an input file is utilized to explicitly specify the application type used for the input file. The application type should be provided using the "type" parameter in the Application block. This block is parsed before the MOOSE application is actually built. If any mismatch between the registered application type and the user-selected type is detected, the system will immediately throw an error and stop the setup of the simulation.

Example

The following input file snippet demonstrates the use of the Application block.

[Application]
  type = MooseTestApp
[]

Available Actions

Moose App
CreateApplicationBlockActionAdds application and application related parameters.

(moose/test/tests/multiapps/application_block_multiapps/application_block_sub.i)

[Application]
  type = MooseTestApp
[]

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

[Variables]
  [u]
  []
[]

[Kernels]
  [diff]
    type = Diffusion
    variable = u
  []
  [td]
    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 = 1
  dt = 1

  solve_type = 'PJFNK'

  petsc_options_iname = '-pc_type -pc_hypre_type'
  petsc_options_value = 'hypre boomeramg'
[]

[Outputs]
  exodus = true
[]