TSAlphaGetParams#

gets the algorithmic parameters for TSALPHA

Synopsis#

#include "petscts.h"   
PetscErrorCode TSAlphaGetParams(TS ts, PetscReal *alpha_m, PetscReal *alpha_f, PetscReal *gamma)

Not Collective

Input Parameter#

  • ts - timestepping context

Output Parameters#

  • \alpha_m - algorithmic parameter

  • \alpha_f - algorithmic parameter

  • \gamma - algorithmic parameter

Note#

Use of this function is normally only required to hack TSALPHA to use a modified integration scheme. Users should call TSAlphaSetRadius() to set the high-frequency damping (i.e. spectral radius of the method) in order so select optimal values for these parameters.

See Also#

TS: Scalable ODE and DAE Solvers, TS, TSALPHA, TSAlphaSetRadius(), TSAlphaSetParams()

Level#

advanced

Location#

src/ts/impls/implicit/alpha/alpha1.c

Implementations#

TSAlphaGetParams_Alpha in src/ts/impls/implicit/alpha/alpha1.c

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Index of all manual pages