#include "petscksp.h" PetscErrorCode KSPBCGSLSetXRes(KSP ksp, PetscReal delta)Logically Collective on ksp
| ksp | - iterative context obtained from KSPCreate | |
| delta | - computed residuals are used alone when delta is not positive |
| -ksp_bcgsl_xres delta | - Threshold used to decide when to refresh computed residuals |