petsc-3.14.6 2021-03-30
TSRestartStep
Flags the solver to restart the next step
Synopsis
#include "petscts.h"
PetscErrorCode TSRestartStep(TS ts)
Collective on TS
Input Parameter
Notes
Multistep methods like BDF or Runge-Kutta methods with FSAL property require restarting the solver in the event of
discontinuities. These discontinuities may be introduced as a consequence of explicitly modifications to the solution
vector (which PETSc attempts to detect and handle) or problem coefficients (which PETSc is not able to detect). For
the sake of correctness and maximum safety, users are expected to call TSRestart() whenever they introduce
discontinuities in callback routines (e.g. prestep and poststep routines, or implicit/rhs function routines with
discontinuous source terms).
See Also
TSSolve(), TSSetPreStep(), TSSetPostStep()
Level
advanced
Location
src/ts/interface/ts.c
Examples
src/ts/tutorials/ex40.c.html
src/ts/tutorials/ex41.c.html
Index of all TS routines
Table of Contents for all manual pages
Index of all manual pages