Problem

Full name

pylith.problems.Problem

Journal name

problem

Abstract base class for a problem.

Pyre Facilities

• bc: Boundary conditions.

  • current value: ‘emptybin’, from {default}

  • configurable as: emptybin, bc

• defaults: Default options for problem.

  • current value: ‘problem_defaults’, from {default}

  • configurable as: problem_defaults, defaults

• gravity_field: Database used for gravity field.

  • current value: ‘nullcomponent’, from {default}

  • configurable as: nullcomponent, gravity_field

• interfaces: Interior surfaces with constraints or constitutive models.

  • current value: ‘emptybin’, from {default}

  • configurable as: emptybin, interfaces

• materials: Materials in problem.

  • current value: ‘homogeneous’, from {default}

  • configurable as: homogeneous, materials

• normalizer: Nondimensionalizer for problem.

  • current value: ‘nondimelasticquasistatic’, from {default}

  • configurable as: nondimelasticquasistatic, normalizer

• petsc_defaults: Flags controlling which default PETSc options to use.

  • current value: ‘petscdefaults’, from {default}

  • configurable as: petscdefaults, petsc_defaults

• solution: Solution field for problem.

  • current value: ‘solution’, from {default}

  • configurable as: solution

• solution_observers: Observers (e.g., output) for solution.

  • current value: ‘singlesolnobserver’, from {default}

  • configurable as: singlesolnobserver, solution_observers

Pyre Properties

• formulation=<str>: Formulation for equations.

  • default value: ‘quasistatic’

  • current value: ‘quasistatic’, from {default}

  • validator: (in [‘quasistatic’, ‘dynamic’, ‘dynamic_imex’])

• solver=<str>: Type of solver to use [‘linear’, ‘nonlinear’].

  • default value: ‘linear’

  • current value: ‘linear’, from {default}

  • validator: (in [‘linear’, ‘nonlinear’])