petsc-3.14.6 2021-03-30
DMTSCheckJacobian
Check the Jacobian of the exact solution against the residual using the Taylor Test
Synopsis
#include "petscdmplex.h"
#include "petscts.h"
PetscErrorCode DMTSCheckJacobian(TS ts, DM dm, PetscReal t, Vec u, Vec u_t, PetscReal tol, PetscBool *isLinear, PetscReal *convRate)
Input Parameters
| ts | - the TS object
|
| dm | - the DM
|
| t | - the time
|
| u | - a DM vector
|
| u_t | - a DM vector
|
| tol | - A tolerance for the check, or -1 to print the results instead
|
Output Parameters
| isLinear | - Flag indicaing that the function looks linear, or NULL
|
| convRate | - The rate of convergence of the linear model, or NULL
|
See Also
DNTSCheckFromOptions(), DMTSCheckResidual(), DNSNESCheckFromOptions(), DMSNESCheckDiscretization(), DMSNESCheckResidual()
Level
developer
Location
src/ts/utils/dmplexts.c
Index of all TS routines
Table of Contents for all manual pages
Index of all manual pages