TSDIRKRegister#

register a TSDIRK scheme by providing the entries in its Butcher tableau and, optionally, embedded approximations and interpolation

Synopsis#

#include "petscts.h"   
PetscErrorCode TSDIRKRegister(TSDIRKType name, PetscInt order, PetscInt s, const PetscReal At[], const PetscReal bt[], const PetscReal ct[], const PetscReal bembedt[], PetscInt pinterp, const PetscReal binterpt[])

Logically Collective.

Input Parameters#

  • name - identifier for method

  • order - approximation order of method

  • s - number of stages, this is the dimension of the matrices below

  • At - Butcher table of stage coefficients (dimension s*s, row-major order)

  • bt - Butcher table for completing the step (dimension s; pass NULL to use the last row of At)

  • ct - Abscissa of each stage (dimension s, NULL to use row sums of At)

  • bembedt - Stiff part of completion table for embedded method (dimension s; NULL if not available)

  • pinterp - Order of the interpolation scheme, equal to the number of columns of binterpt and binterp

  • binterpt - Coefficients of the interpolation formula (dimension s*pinterp)

Note#

Several TSDIRK methods are provided, the use of this function is only needed to create new methods.

See Also#

TS: Scalable ODE and DAE Solvers, TSDIRK, TSType, TS

Level#

advanced

Location#

src/ts/impls/arkimex/arkimex.c

Index of all TS routines
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Index of all manual pages