petsc-3.8.4 2018-03-24

TSFunctionDomainError

Check if the current state is valid

#include "petscts.h"  
PetscErrorCode TSFunctionDomainError(TS ts,PetscReal stagetime,Vec Y,PetscBool* accept)

ts - the TS context stagetime - time of the simulation Y - state vector to check.

accept - Set to PETSC_FALSE if the current state vector is valid.

This function should be used to ensure the state is in a valid part of the space. For example, one can ensure here all values are positive.