petsc-3.7.5 2017-01-01
TSAlpha2GetParams
gets the algorithmic parameters for TSALPHA2
Synopsis
#include "petscts.h"
PetscErrorCode TSAlpha2GetParams(TS ts,PetscReal *alpha_m,PetscReal *alpha_f,PetscReal *gamma,PetscReal *beta)
Not Collective
Input Parameter
| ts | - timestepping context
|
Output Parameters
| \alpha_m | - algorithmic parameter
|
| \alpha_f | - algorithmic parameter
|
| \gamma | - algorithmic parameter
|
| \beta | - algorithmic parameter
|
Note
Use of this function is normally only required to hack TSALPHA2 to
use a modified integration scheme. Users should call
TSAlpha2SetRadius() to set the high-frequency damping (i.e. spectral
radius of the method) in order so select optimal values for these
parameters.
See Also
TSAlpha2SetRadius(), TSAlpha2SetParams()
Level:advanced
Location:src/ts/impls/implicit/alpha/alpha2.c
Index of all TS routines
Table of Contents for all manual pages
Index of all manual pages