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young1c.mtx ! This matrix (and others) from: http://math.nist.gov/MatrixMarket/ or
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NONE ! rhs | http://www.cise.ufl.edu/research/sparse/matrices/index.html
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MM ! File format: MM (Matrix Market) HB (Harwell-Boeing).
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BICGSTAB ! Iterative method: BiCGSTAB BiCG CGS RGMRES BiCGSTABL CG
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CSR ! Storage format: CSR COO JAD
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0 ! IPART (partition method): 0 (block) 2 (graph, with Metis)
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2 ! ISTOPC
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00200 ! ITMAX
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02 ! ITRACE
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30 ! IRST (restart for RGMRES and BiCGSTABL)
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1.d-5 ! EPS
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3L-M-RAS-I-D4 ! Longer descriptive name for preconditioner (up to 20 chars)
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ML ! Preconditioner type: NONE JACOBI BJAC AS ML
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0 ! Number of overlap layers for AS preconditioner
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HALO ! AS restriction operator: NONE HALO
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NONE ! AS prolongation operator: NONE SUM AVG
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ILU ! AS subdomain solver: ILU MILU ILUT UMF SLU MUMPS
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1 ! Fill level P for ILU(P) and ILU(T,P)
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1.d-4 ! Threshold T for ILU(T,P)
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4 ! Number of Jacobi sweeps for base smoother
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3 ! Number of levels in a multilevel preconditioner
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AS ! Smoother type JACOBI BJAC AS ignored for non-ML
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SMOOTHED ! Type of aggregation: SMOOTHED NONSMOOTHED MINENERGY
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DEC ! Type of aggregation: DEC
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MULT ! Type of multilevel correction: ADD MULT
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POST ! Side of multiplicative correction PRE POST TWOSIDE (ignored for ADD)
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REPL ! Coarsest-level matrix distribution: DIST REPL
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BJAC ! Coarsest-level solver: JACOBI BJAC UMF SLU SLUDIST MUMPS
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UMF ! Coarsest-level subsolver: ILU UMF SLU MUMPS SLUDIST (DSCALE for JACOBI)
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0 ! Coarsest-level fillin P for ILU(P) and ILU(T,P)
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1.d-4 ! Coarsest-level threshold T for ILU(T,P)
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4 ! Number of Jacobi sweeps for BJAC coarsest-level solver
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0.10d0 ! Smoothed aggregation threshold: >= 0.0
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