TSSetEventTolerances

Set tolerances for event (indicator function) zero crossings

Synopsis

#include "petscts.h" 
PetscErrorCode TSSetEventTolerances(TS ts, PetscReal tol, PetscReal vtol[])

Logically Collective

Input Parameters

• ts - time integration context

• tol - tolerance, PETSC_CURRENT to leave the current value

• vtol - array of tolerances or NULL, used in preference to tol if present

Options Database Key

• -ts_event_tol - tolerance for event (indicator function) zero crossing

Notes

One must call TSSetEventHandler() before setting the tolerances.

The size of vtol should be equal to the number of events on the given process.

This function can be also called from the postevent() callback set with TSSetEventHandler(), to adjust the tolerances on the fly.

See Also

TS: Scalable ODE and DAE Solvers, TS, TSEvent, TSSetEventHandler()

Level

beginner

Location

src/ts/event/tsevent.c

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