DMTSSetIFunction#
set TS implicit function evaluation function
Synopsis#
#include "petscts.h"
PetscErrorCode DMTSSetIFunction(DM dm, TSIFunction func, void *ctx)
Not Collective
Input Parameters#
dm - DM to be used with TS
func - function evaluating f(t,u,u_t)
ctx - context for residual evaluation
Calling sequence of func#
t - time at step/stage being solved
u - state vector
u_t - time derivative of state vector
F - function vector
ctx - [optional] user-defined context for matrix evaluation routine
Note#
TSSetFunction() is normally used, but it calls this function internally because the user context is actually associated with the DM. This makes the interface consistent regardless of whether the user interacts with a DM or not. If DM took a more central role at some later date, this could become the primary method of setting the residual.
See Also#
DMTSSetContext()
, TSSetIFunction()
, DMTSSetJacobian()
Level#
advanced
Location#
Index of all TS routines
Table of Contents for all manual pages
Index of all manual pages