KSPBCGSLSetXRes#

Sets the parameter governing when exact residuals will be used instead of computed residuals.

Synopsis#

#include "petscksp.h" 
PetscErrorCode KSPBCGSLSetXRes(KSP ksp, PetscReal delta)

Logically Collective on ksp

Input Parameters#

  • ksp - iterative context obtained from KSPCreate

  • delta - computed residuals are used alone when delta is not positive

Options Database Keys#

  • -ksp_bcgsl_xres delta - Threshold used to decide when to refresh computed residuals

See Also#

KSPBCGSLSetEll(), KSPBCGSLSetPol(), KSP

Level#

intermediate

Location#

src/ksp/ksp/impls/bcgsl/bcgsl.c


Edit on GitLab

Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages