TSAdaptChoose#

choose which method and step size to use for the next step

Synopsis#

#include "petscts.h" 
PetscErrorCode TSAdaptChoose(TSAdapt adapt, TS ts, PetscReal h, PetscInt *next_sc, PetscReal *next_h, PetscBool *accept)

Collective

Input Parameters#

adapt - adaptive controller
ts - time stepper
h - current step size

Output Parameters#

next_sc - optional, scheme to use for the next step
next_h - step size to use for the next step
accept - PETSC_TRUE to accept the current step, PETSC_FALSE to repeat the current step with the new step size

Note#

The input value of parameter accept is retained from the last time step, so it will be PETSC_FALSE if the step is being retried after an initial rejection.