Dear all, I am testing some iterative methods with MATLAB and aside with PETSc however I have a question which might be answered in the documentation however I could not find that?
In MATLAB, at least on recent versions, one can specify a drop tolerance for the incomplete cholesky preconditioner, I was wondering if the same is possible with PETSc or not? One more question, is the condition number order 1e+6(estimated with condest in MATLAB) rather high for an iterative method? With icc, with a drop tolerance of 1e-3 or 1e-4, as a preconditioner to pcg, I can get decent iteration numbers to convergence in MATLAB, it is sometimes even faster than solving the system with the available factorization information and I was wondering if I can make it faster with some other options in PETSc or not? Best regards, Umut
