young1c.mtx ! This matrix (and others) from: http://math.nist.gov/MatrixMarket/ or NONE ! rhs | http://www.cise.ufl.edu/research/sparse/matrices/index.html MM ! File format: MM (Matrix Market) HB (Harwell-Boeing). BICGSTAB ! Iterative method: BiCGSTAB BiCG CGS RGMRES BiCGSTABL CG CSR ! Storage format: CSR COO JAD 0 ! IPART (partition method): 0 (block) 2 (graph, with Metis) 2 ! ISTOPC 00200 ! ITMAX 02 ! ITRACE 30 ! IRST (restart for RGMRES and BiCGSTABL) 1.d-5 ! EPS 3L-M-RAS-I-D4 ! Longer descriptive name for preconditioner (up to 20 chars) ML ! Preconditioner type: NONE JACOBI BJAC AS ML 0 ! Number of overlap layers for AS preconditioner HALO ! AS restriction operator: NONE HALO NONE ! AS prolongation operator: NONE SUM AVG ILU ! AS subdomain solver: DSCALE ILU MILU ILUT UMF SLU MUMPS 1 ! Fill level P for ILU(P) and ILU(T,P) 1.d-4 ! Threshold T for ILU(T,P) 4 ! Number of Jacobi sweeps for base smoother 4 ! Number of levels in a multilevel preconditioner BJAC ! Smoother type JACOBI BJAC AS ignored for non-ML SMOOTHED ! Type of aggregation: SMOOTHED NONSMOOTHED DEC ! Type of aggregation: DEC NATURAL ! Ordering of aggregation NATURAL DEGREE MULT ! Type of multilevel correction: ADD MULT POST ! Side of multiplicative correction PRE POST TWOSIDE (ignored for ADD) REPL ! Coarsest-level matrix distribution: DIST REPL BJAC ! Coarsest-level solver: JACOBI BJAC UMF SLU SLUDIST MUMPS ILU ! Coarsest-level subsolver: ILU UMF SLU MUMPS SLUDIST (DSCALE for JACOBI) 0 ! Coarsest-level fillin P for ILU(P) and ILU(T,P) 1.d-4 ! Coarsest-level threshold T for ILU(T,P) 4 ! Number of Jacobi sweeps for BJAC/PJAC coarsest-level solver 0.0125d0 ! Smoothed aggregation threshold: >= 0.0 0.5 ! Smoothed aggregation scaling factor.