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#
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# GMRES+ILU(k):
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#-ksp_monitor
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#-ksp_rtol 1.e-10
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#-ksp_type gmres
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#-ksp_gmres_restart 1000
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#-pc_type ilu
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-pc_factor_levels 2
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#
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# Direct solver
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-ksp_type preonly
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-pc_type lu
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#-pc_factor_mat_solver_package umfpack
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-pc_factor_mat_solver_package superlu
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-mat_superlu_iterrefine double
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-mat_superlu_conditionnumber true
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-mat_superlu_printstat true
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-mat_superlu_symmetricmode true
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-mat_superlu_replacetinypivot true
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-mat_superlu_pivotgrowth false
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-mat_superlu_colperm COLAMD
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-mat_superlu_diagpivotthresh 1.0
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-pc_lu_mat_ordering_type rcm # natural, nd, 1wd, rcm, qmd
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-petsc_prealloc 120
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# parameters for Yousef's ZITSOL solver
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#-zitsol
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#-zitsol_precond 2 # preconditioner type (1=ILUT, 2=ARMS)
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#-zitsol_lfil 30 # fill-in
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#-zitsol_im 100 # Krylov subspace size
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#-zitsol_maxits 200 # maximum number of iterations
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#-zitsol_tol0 0.01 # threshold (ILUT) or dropping (ARMS) tolerance
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#-zitsol_tol 1.e-10 # tolerance
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