TSMPRKRegister#

register a TSMPRK 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

  • sbase - 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)

Note#

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

See Also#

TS: Scalable ODE and DAE Solvers, TSMPRK

Level#

advanced

Location#

src/ts/impls/multirate/mprk.c

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