MatSNESMFSetFromOptions

 Sets the MatSNESMF options from the command line parameter.

Synopsis

#include "petscsnes.h"   
PetscErrorCode PETSCSNES_DLLEXPORT MatSNESMFSetFromOptions(Mat mat)
Collective on Mat

Input Parameters

mat -the matrix obtained with MatCreateSNESMF()

Options Database Keys

-snes_mf_type - wp or ds (see MATSNESMF_WP or MATSNESMF_DS)
-snes_mf_err - square root of estimated relative error in function evaluation
-snes_mf_period -how often h is recomputed, defaults to 1, everytime

Keywords

SNES, matrix-free, parameters

See Also

MatCreateSNESMF(),MatSNESMFSetHHistory(),
MatSNESMFResetHHistory(), MatSNESMFKSPMonitor()

Level:advanced
Location:src/snes/mf/snesmfj.c
Index of all SNESMF routines
Table of Contents for all manual pages
Index of all manual pages