petsc-3.14.6 2021-03-30
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set TS solution evaluation function


#include "petscts.h" 
PetscErrorCode DMTSSetSolutionFunction(DM dm,TSSolutionFunction func,void *ctx)
Not Collective

Input Arguments

dm - DM to be used with TS
func - solution function evaluation routine
ctx - context for solution evaluation

Calling sequence of f

    PetscErrorCode f(TS ts,PetscReal t,Vec u,void *ctx);

ts - timestep context
t - current timestep
u - output vector
ctx - [optional] user-defined function context


TSSetSolutionFunction() 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(), TSSetFunction(), DMTSSetJacobian(), DMTSGetSolutionFunction()




Index of all TS routines
Table of Contents for all manual pages
Index of all manual pages