1# SNES (nonlinear solver) options 2# Newton method 3-waternet_snes_type newtonls 4# Absolute and relative tolerances 5-waternet_snes_atol 1e-8 6-waternet_snes_rtol 1e-20 7# Line search method (bt and l2 lead to converge, basic diverges) 8-waternet_snes_linesearch_type l2 9# Finite differenced Jacobian 10-waternet_snes_fd 11 12# KSP (linear solver) options 13-waternet_ksp_type gmres 14 15# PC (preconditioner) options 16-waternet_pc_type bjacobi 17-waternet_sub_pc_type lu 18-waternet_sub_pc_factor_mat_ordering_type qmd 19