BICGSTAB                    ! Iterative method: BiCGSTAB BiCG CGS RGMRES BiCGSTABL CG
CSR                         ! Storage format CSR COO JAD 
0100                        ! IDIM; domain size is idim**3
2                           ! ISTOPC
2000                        ! ITMAX
10                          ! ITRACE
30                          ! IRST     (restart for RGMRES and BiCGSTABL) 
1.d-6                       ! EPS
ML-MUL-RAS-ILU              ! Descriptive name for preconditioner (up to 40 chars) 
ML                          ! Preconditioner NONE  JACOBI  BJAC  AS ML
-1                          ! If ML: Prescribed number of levels; if <0, ignore it and use coarse size.
-010                        ! If ML: Target coarse size. If  <0, then use library default
-1.5d0                      ! If ML: Minimum aggregation ratio; if <0 use library default
-0.10d0                     ! If ML: Smoother Aggregation Threshold: >= 0.0 default if <0
-20                         ! If ML: Maximum acceptable number of levels; if <0 use library default
SMOOTHED                    ! Type of aggregation: SMOOTHED, NONSMOOTHED, MINENERGY
SYMDEC                      ! Type of aggregation: DEC SYMDEC 
NATURAL                     ! Ordering of aggregation: NATURAL DEGREE
MULT                        ! Type of multilevel correction: ADD MULT KCYCLE VCYCLE WCYCLE KCYCLESYM
TWOSIDE                     ! Side of correction: PRE POST TWOSIDE (ignored for ADD)
4                           ! Smoother sweeps 
BJAC                        ! Smoother type  JACOBI BJAC AS; ignored for non-ML
0                           ! Number of overlap layers for AS preconditioner (at finest level)
HALO                        ! AS Restriction operator NONE HALO 
NONE                        ! AS Prolongation operator NONE SUM AVG
GS                          ! Subdomain solver DSCALE ILU MILU ILUT FWGS BWGS MUMPS UMF SLU 
4                           ! Solver sweeps for GS
0                           ! Level-set N for ILU(N), and P for ILUT
1.d-4                       ! Threshold T for ILU(T,P) 
DIST                        ! Coarse level: matrix distribution DIST  REPL           
BJAC                        ! Coarse level: solver JACOBI BJAC UMF SLU  SLUDIST MUMPS
ILU                         ! Coarse level: subsolver DSCALE GS BWGS ILU UMF SLU  SLUDIST MUMPS
1                           ! Coarse level: Level-set N for ILU(N)
1.d-4                       ! Coarse level: Threshold T for ILU(T,P) 
4                           ! Coarse level: Number of Jacobi sweeps