TSAlpha2SetPredictor

sets the callback for computing a predictor (i.e., initial guess for the nonlinear solver).

Synopsis

#include "petscts.h"   
PetscErrorCode TSAlpha2SetPredictor(TS ts, TSAlpha2PredictorFn *predictor, void *ctx)

Input Parameters

• ts - timestepping context

• predictor - callback to set the predictor in each step

• ctx - the application context, which may be set to NULL if not used

Notes

If this function is never called, a same-state-vector predictor will be used, i.e., the initial guess will be the converged solution from the previous time step, without regard for the previous velocity or acceleration.

See Also

TS: Scalable ODE and DAE Solvers, TS, TSALPHA2, TSAlpha2PredictorFn

Level

intermediate

Location

src/ts/impls/implicit/alpha/alpha2.c

Examples

src/ts/tutorials/ex43.c

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Index of all TS routines
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Index of all manual pages