petsc-3.12.5 2020-03-29
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
TSAlphaSetRadius(), TSAlphaSetParams()
Level
advanced
Location
src/ts/impls/implicit/alpha/alpha1.c
Implementations
TSAlphaGetParams_Alpha in src/ts/impls/implicit/alpha/alpha1.c
Index of all TS routines
Table of Contents for all manual pages
Index of all manual pages