Dear All, I just explored the user manual v3.4 and I noticed the option
-ksp_compute_eigenvalues I test it with my problem with ~1000 number of dofs, and it printed out Iteratively computed eigenvalues 0.840692 + 0i 0.857247 - 0.235747i 0.857247 + 0.235747i 0.999993 + 0i 1.03457 + 0i 2.69763 + 0i I noticed there are complex numbers... I wonder what does the printout info indicate, a good system, a bad system or nothing special? Best, Ling
