I just downloaded and compiled Petsc 3.0.0-p2, and after making some changes in my code to specify the correct location of the include files, finally got everything to compile okay.
Now, I'm trying to run my test problem, and it's not converging. When I say not converging, the first line (with ksp_monitor_true_residual) shows that the true and preconditioned residuals are the same as before, but immediately thereafter, the preconditioned residual fails to go below 1e-8 whereas before it quickly went down to 1e-15. The options in my command file are: -ksp_type bcgsl -pc_type bjacobi -sub_pc_type ilu -sub_pc_factor_levels 3 -sub_pc_factor_fill 6 The only thing I see in the Change notes are that the ILU defaults to shifting so that it's p.d. but I don't see an easy way to turn this off by the command line to see if that's the problem. I tried to do it in my program, but it's unclear if I did that correctly. Any suggestions? Thanks, Randy
