#include "petscdmda.h" #include "petscts.h" PetscErrorCode DMDATSSetIJacobianLocal(DM dm,DMDATSIJacobianLocal func,void *ctx)Logically Collective
| dm | - DM to associate callback with | |
| func | - local residual evaluation | |
| ctx | - optional context for local residual evaluation |
func(DMDALocalInfo* info,PetscReal t,void* x,void *xdot,PetscScalar shift,Mat J,Mat B,void *ctx);
| info | - DMDALocalInfo defining the subdomain to evaluate the residual on | |
| t | - time at which to evaluate the jacobian | |
| x | - array of local state information | |
| xdot | - time derivative at this state | |
| shift | - see TSSetIJacobian() for the meaning of this parameter | |
| J | - Jacobian matrix | |
| B | - preconditioner matrix; often same as J | |
| ctx | - optional context passed above |
Level:beginner
Location:src/ts/utils/dmdats.c
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