petsc-3.12.5 2020-03-29
KSP_CONVERGED_ATOL
norm(r) <= atol
See KSPNormType and KSPSetNormType() for possible norms that may be used. By default
for left preconditioning it is the 2-norm of the preconditioned residual, and the
2-norm of the residual for right preconditioning
See also KSP_CONVERGED_RTOL which may apply before this tolerance.
See Also
KSP_CONVERGED_RTOL, KSP_DIVERGED_DTOL, KSPSolve(), KSPGetConvergedReason(), KSPConvergedReason, KSPSetTolerances()
Level
beginner
Location
src/ksp/ksp/guess/../../../../include/petscksp.h
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages