MatSNESMFSetHHistory
Sets an array to collect a history of the differencing values (h) computed for the matrix-free product.
Synopsis
#include "petscsnes.h"
int MatSNESMFSetHHistory(Mat J,PetscScalar *history,int nhistory)
Collective on Mat
Input Parameters
| J | - the matrix-free matrix context
|
| histroy | - space to hold the history
|
| nhistory | - number of entries in history, if more entries are generated than
nhistory, then the later ones are discarded
|
Notes
Use MatSNESMFResetHHistory() to reset the history counter and collect
a new batch of differencing parameters, h.
Keywords
SNES, matrix-free, h history, differencing history
See Also
MatSNESMFGetH(), MatCreateSNESMF(),
MatSNESMFResetHHistory(),
MatSNESMFKSPMonitor(), MatSNESMFSetFunctionError()
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