petsc-3.11.4 2019-09-28
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TSRKRegister

 register an RK scheme by providing the entries in the Butcher tableau and optionally embedded approximations and interpolation

Synopsis

#include "petscts.h"   
PetscErrorCode TSRKRegister(TSRKType name,PetscInt order,PetscInt s,
                            const PetscReal A[],const PetscReal b[],const PetscReal c[],
                            const PetscReal bembed[],PetscInt p,const PetscReal binterp[])
Not Collective, but the same schemes should be registered on all processes on which they will be used

Input Parameters

name - identifier for method
order - approximation order of method
s - number of stages, this is the dimension of the matrices below
A - stage coefficients (dimension s*s, row-major)
b - step completion table (dimension s; NULL to use last row of A)
c - abscissa (dimension s; NULL to use row sums of A)
bembed - completion table for embedded method (dimension s; NULL if not available)
p - Order of the interpolation scheme, equal to the number of columns of binterp
binterp - Coefficients of the interpolation formula (dimension s*p; NULL to reuse b with p=1)

Notes

Several RK methods are provided, this function is only needed to create new methods.

Keywords

TS, register

See Also

TSRK

Level

advanced

Location

src/ts/impls/explicit/rk/rk.c
Index of all TS routines
Table of Contents for all manual pages
Index of all manual pages