PETSc version 3.17.4
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# TSMonitorSet

Sets an ADDITIONAL function that is to be used at every timestep to display the iteration's progress.

### Synopsis

    #include "petscts.h"
    PetscErrorCode  TSMonitorSet(TS ts,PetscErrorCode (*monitor)(TS,PetscInt,PetscReal,Vec,void*),void *mctx,PetscErrorCode (*mdestroy)(void**))

Logically Collective on TS

### Input Parameters

| ts | - the TS context obtained from TSCreate()
| monitor | - monitoring routine
| mctx | - [optional] user-defined context for private data for the monitor routine (use NULL if no context is desired)
| monitordestroy | - [optional] routine that frees monitor context (may be NULL)

### Calling sequence of monitor

       PetscErrorCode monitor(TS ts,PetscInt steps,PetscReal time,Vec u,void *mctx)

| ts | - the TS context
| steps | - iteration number (after the final time step the monitor routine may be called with a step of -1, this indicates the solution has been interpolated to this time)
| time | - current time
| u | - current iterate
| mctx | - [optional] monitoring context

### Notes

This routine adds an additional monitor to the list of monitors that already has been loaded.

### Fortran Notes

Only a single monitor function can be set for each TS object

### See Also

TSMonitorDefault(), TSMonitorCancel()

### Level

intermediate

### Location

src/ts/interface/tsmon.c

### Examples

src/ts/tutorials/ex2.c.html
src/ts/tutorials/ex3.c.html
src/ts/tutorials/ex4.c.html
src/ts/tutorials/ex5.c.html
src/ts/tutorials/ex6.c.html
src/ts/tutorials/ex7.c.html
src/ts/tutorials/ex8.c.html
src/ts/tutorials/ex11.c.html
src/ts/tutorials/ex12.c.html
src/ts/tutorials/ex14.c.html
src/ts/tutorials/ex16.c.html
Index of all TS routines
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Index of all manual pages