param_file.petsc

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# --- Problem: poisson_2d_nonhomogeneous, poisson_2d_lagrange_multiplier
 
## Linear solver (non-fieldsplit)
-ksp_type fgmres 
-pc_type lu 
-pc_factor_mat_solver_type mumps
-mat_mumps_icntl_20 0
-ksp_monitor
 
# Fieldsplit (block) solver
#-pc_type fieldsplit
#-pc_fieldsplit_type schur
#-ksp_type fgmres
#-ksp_initial_guess_nonzero
#-ksp_atol 1e-12
#-ksp_rtol 0
#-ksp_monitor ascii
#-pc_fieldsplit_schur_precondition selfp
#-fieldsplit_0_ksp_type gmres
 
# ---