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
