KrylovLinearSolver

class KrylovLinearSolver

Bases: LinearSolver

KrylovLinearSolver class for setting up the Krylov linear solver.

When used as the linear_solver on NavierStokesSolver, max_iterations is interpreted as the Krylov iterations.

Example

>>> fl.KrylovLinearSolver(
...     max_iterations=15,
...     max_preconditioner_iterations=15,
...     relative_tolerance=0.05,
... )

Attributes

max_iterations: int

Number of Krylov iterations.

Default:

15

absolute_tolerance: float, optional

The linear solver converges when the final residual of the pseudo steps below this value.Either absolute tolerance or relative tolerance can be used to determine convergence.

Default:

None

relative_tolerance: float

Relative tolerance for the Krylov linear solver convergence.

Default:

0.05

max_preconditioner_iterations: int

Number of preconditioner sweeps per Krylov iteration.

Default:

15