petsc-3.11.3 2019-06-26
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KSPCheckSolve

Checks if the PCSetUp() or KSPSolve() failed and set the error flag for the outer PC. A KSP_DIVERGED_ITS is not considered a failure in this context

Synopsis

#include "petscksp.h" 
PetscErrorCode KSPCheckSolve(KSP ksp,PC pc,Vec vec)
Collective on KSP

Input Parameter

ksp - the linear solver (KSP) context.
pc - the preconditioner context
vec - a vector that will be initialized with Inf to indicate lack of convergence

Notes: this may be called by a subset of the processes in the PC

Developer Note: this is used to manage returning from preconditioners whose inner KSP solvers have failed in some way

Keywords

KSP, PC, divergence, convergence

See Also

KSPCreate(), KSPSetType(), KSP, KSPCheckNorm(), KSPCheckDot()

Level

developer

Location

src/ksp/ksp/interface/iterativ.c
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages