Instead of setting rtol to default you should set it zero so it never gets triggered.
> On Sep 8, 2015, at 10:38 PM, Amal Sahai <[email protected]> wrote: > > I have been setting the tolerance for a ksp solver using KSPSetTolerances. I > would like to set my convergence criteria using only the absolute convergence > parameter. I use the following command to set this up: > > KSPSetTolerances( ksp, PETSC_DEFAULT, atol, PETSC_DEFAULT, maxits) > > The problem is my ksp solver considers only the value of rtol while stopping > the iterative solve. I tried changing the value of rtol to some other > parameter instead of PETSC_DEFAULT (while making sure that atol is the more > stringent condition requiring more iterations) but to no avail. > > How can I fix this? > > Regards > Amal
