SNES_KSP_SetConvergenceTestEW
Sets alternative convergence test for the linear solvers within an inexact Newton method.
Synopsis
int SNES_KSP_SetConvergenceTestEW(SNES snes)
Collective on
SNES
Input Parameter
snes -SNES context
Notes
Currently, the default is to use a constant relative tolerance
forthe inner linear solvers. Alternatively, one can use
theEisenstat-Walker method, where the relative convergence
toleranceis reset at each Newton iteration according progress of the
nonlinearsolver.
Reference
S. C. Eisenstat and H. F. Walker, "Choosing the forcing terms in
aninexact Newton method", SISC 17 (1), pp.16-32, 1996.
Keywords
SNES, KSP, Eisenstat, Walker, convergence, test, inexact, Newton
Location: src/snes/interface/snesut.c
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