petsc-3.14.5 2021-03-03
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# TSSetPreStep

Sets the general-purpose function called once at the beginning of each time step.

### Synopsis

    #include "petscts.h"
    PetscErrorCode  TSSetPreStep(TS ts, PetscErrorCode (*func)(TS))

Logically Collective on TS

### Input Parameters

| ts | - The TS context obtained from TSCreate()
| func | - The function

### Calling sequence of func

| PetscErrorCode func (TS ts);

### See Also

TSSetPreStage(), TSSetPostStage(), TSSetPostStep(), TSStep(), TSRestartStep()

### Level

intermediate

### Location

src/ts/interface/ts.c

### Examples

src/ts/utils/dmplexlandau/tutorials/ex2.c.html
Index of all TS routines
Table of Contents for all manual pages
Index of all manual pages