SNESQNSetRestartType#
Sets the restart type for SNESQN.
Synopsis#
#include "petscsnes.h"
PetscErrorCode SNESQNSetRestartType(SNES snes, SNESQNRestartType rtype)
Logically Collective
Input Parameters#
snes - the iterative context
rtype - restart type
Options Database Keys#
-snes_qn_restart_type <powell,periodic,none> - set the restart type
-snes_qn_m
- sets the number of stored updates and the restart period for periodic
SNESQNRestartTypes#
SNES_QN_RESTART_NONE- never restartSNES_QN_RESTART_POWELL- restart based upon descent criteriaSNES_QN_RESTART_PERIODIC- restart after a fixed number of iterations
See Also#
SNESQN, SNESQNRestartType, SNES_QN_RESTART_NONE, SNES_QN_RESTART_POWELL, SNES_QN_RESTART_PERIODIC
Level#
intermediate
Location#
Implementations#
SNESQNSetRestartType_QN in src/snes/impls/qn/qn.c
Index of all SNES routines
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Index of all manual pages