-pc_type lu
-pc_factor_nonzeros_along_diagonal
-pc_factor_mat_solver_package superlu_dist
-mat_superlu_dist_replacetinypivot false
-mat_superlu_conditionnumber true
-mat_superlu_dist_equil true
-mat_superlu_equil true
-snes_monitor

#  LS type: basic, bt, l2, cp, shell
-snes_linesearch_type l2

-snes_atol 1.e-10
-snes_rtol 1.e-10
-snes_stol 1.e-20
-snes_converged_reason
