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

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

TS: Scalable ODE and DAE Solvers, TSPSEUDO, 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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