TSAlpha2PredictorFn#

A callback to set the predictor (i.e., the initial guess for the nonlinear solver) in a second-order generalized-alpha time integrator.

Synopsis#

#include <petscts.h> 
PETSC_EXTERN_TYPEDEF typedef PetscErrorCode(TSAlpha2PredictorFn)(TS ts, Vec X0, Vec V0, Vec A0, Vec X1, void *ctx);

Calling Sequence#

  • ts - the TS context obtained from TSCreate()

  • X0 - the previous time step’s state vector

  • V0 - the previous time step’s first derivative of the state vector

  • A0 - the previous time step’s second derivative of the state vector

  • X1 - the vector into which the initial guess for the current time step will be written

  • ctx - [optional] user-defined context for the predictor evaluation routine (may be NULL)

Note#

The deprecated TSAlpha2Predictor still works as a replacement for TSAlpha2PredictorFn *.

See Also#

TS: Scalable ODE and DAE Solvers, TS, TSAlpha2SetPredictor()

Level#

intermediate

Location#

include/petscts.h

Index of all TS routines
Table of Contents for all manual pages
Index of all manual pages