petsc-master 2019-11-20
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TSMPRKRegister

register a MPRK scheme by providing the entries in the Butcher tableau

Synopsis

#include "petscts.h"   
PetscErrorCode TSMPRKRegister(TSMPRKType name,PetscInt order,
                              PetscInt sbase,PetscInt ratio1,PetscInt ratio2,
                              const PetscReal Asb[],const PetscReal bsb[],const PetscReal csb[],const PetscInt rsb[],
                              const PetscReal Amb[],const PetscReal bmb[],const PetscReal cmb[],const PetscInt rmb[],
                              const PetscReal Af[],const PetscReal bf[],const PetscReal cf[])
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 in the base methods
ratio1 - stepsize ratio at 1st level (e.g. slow/medium)
ratio2 - stepsize ratio at 2nd level (e.g. medium/fast)
Af - stage coefficients for fast components(dimension s*s, row-major)
bf - step completion table for fast components(dimension s)
cf - abscissa for fast components(dimension s)
As - stage coefficients for slow components(dimension s*s, row-major)
bs - step completion table for slow components(dimension s)
cs - abscissa for slow components(dimension s)

Notes

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

See Also

TSMPRK

Level

advanced

Location

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