KSPGuessSetFromOptions#
Sets the options for a KSPGuess from the options database
Synopsis#
#include "petscksp.h"  
PetscErrorCode KSPGuessSetFromOptions(KSPGuess guess)
Collective
Input Parameter#
- guess - - KSPGuessobject
Options Database Keys#
- -ksp_guess_type - - Turns on generation of initial guesses and sets the method; use -help for a list of available methods
- -ksp_guess_view - - view the- KSPGuessobject
- -ksp_guess_fischer_model <a,b> - set details for the Fischer models 
- -ksp_guess_fischer_monitor - monitor the Fischer models 
- -ksp_guess_fischer_tol - - set the tolerance for the Fischer models
- -ksp_guess_pod_size - - Number of snapshots
- -ksp_guess_pod_monitor true - monitor the pod initial guess processing 
- -ksp_guess_pod_tol - - Tolerance to retain eigenvectors
- -ksp_guess_pod_Ainner true - Use the operator as inner product (must be SPD) 
See Also#
KSP: Linear System Solvers, KSPGuess, KSPGetGuess(), KSPGuessSetType(), KSPGuessType
Level#
developer
Location#
Implementations#
KSPGuessSetFromOptions_Fischer() in src/ksp/ksp/guess/impls/fischer/fischer.c
KSPGuessSetFromOptions_POD() in src/ksp/ksp/guess/impls/pod/pod.c
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages