NEPRIISetConstCorrectionTol#
Sets a flag to keep the tolerance used in the linear solver constant.
Synopsis#
#include "slepcnep.h"
PetscErrorCode NEPRIISetConstCorrectionTol(NEP nep,PetscBool cct)
Logically Collective
Input Parameters#
nep - the nonlinear eigensolver context
cct - a boolean value
Options Database Key#
-nep_rii_const_correction_tol
- set the boolean flag
Notes#
By default, an exponentially decreasing tolerance is set in the KSP used within the nonlinear iteration, so that each Newton iteration requests better accuracy than the previous one. The constant correction tolerance flag stops this behavior.
See Also#
NEP: Nonlinear Eigenvalue Problems, NEPRIIGetConstCorrectionTol()
Level#
intermediate
Location#
Implementations#
NEPRIISetConstCorrectionTol_RII() in src/nep/impls/rii/rii.c
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