PETSc version 3.15.5

TSRHSJacobianTestTranspose

Compares the multiply transpose routine provided to the MATSHELL with differencing on the TS given RHS function.

#include "petscts.h"  
PetscErrorCode  TSRHSJacobianTestTranspose(TS ts,PetscBool *flg)

Logically Collective on TS

TS - the time stepping routine

flg

- PETSC_TRUE if the multiply is likely correct

-ts_rhs_jacobian_test_mult_transpose

- mat_shell_test_mult_transpose_view - run the test at each timestep of the integrator

This only works for problems defined only the RHS function and Jacobian NOT IFunction and IJacobian

advanced