PETSc version 3.17.4
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# TSPseudoIncrementDtFromInitialDt

Indicates that a new timestep is computed via the formula $ dt = initial_dt*initial_fnorm/current_fnorm rather than the default update, $ dt = current_dt*previous_fnorm/current_fnorm.

### Synopsis

    #include "petscts.h"
    PetscErrorCode  TSPseudoIncrementDtFromInitialDt(TS ts)

Logically Collective on TS

### Input Parameter

| ts | - the timestep context

### Options Database Key

| -ts_pseudo_increment_dt_from_initial_dt <true,false> | - use the initial dt to determine increment

### See Also

TSPseudoSetTimeStep(), TSPseudoTimeStepDefault()

### Level

advanced

### Location

src/ts/impls/pseudo/posindep.c

### Implementations

TSPseudoIncrementDtFromInitialDt_Pseudo in src/ts/impls/pseudo/posindep.c
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