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amg4psblas/tests/pdegen/runs/amg_pde2d.inp

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%%%%%%%%%%% General arguments % Lines starting with % are ignored.
CSR ! Storage format CSR COO JAD
0200 ! IDIM; domain size. Linear system size is IDIM**2
CG ! Iterative method: BiCGSTAB BiCGSTABL BiCG CG CGS FCG GCR RGMRES
2 ! ISTOPC
00500 ! ITMAX
1 ! ITRACE
30 ! IRST (restart for RGMRES and BiCGSTABL)
1.d-6 ! EPS
%%%%%%%%%%% Main preconditioner choices %%%%%%%%%%%%%%%%
ML-VCYCLE-FBGS-R-UMF ! Longer descriptive name for preconditioner (up to 20 chars)
ML ! Preconditioner type: NONE JACOBI GS FBGS BJAC AS ML
%%%%%%%%%%% First smoother (for all levels but coarsest) %%%%%%%%%%%%%%%%
BJAC ! Smoother type JACOBI FBGS GS BWGS BJAC AS. For 1-level, repeats previous.
1 ! Number of sweeps for smoother
0 ! Number of overlap layers for AS preconditioner
HALO ! AS restriction operator: NONE HALO
NONE ! AS prolongation operator: NONE SUM AVG
ILU ! Subdomain solver for BJAC/AS: JACOBI GS BGS ILU ILUT MILU MUMPS SLU UMF
0 ! Fill level P for ILU(P) and ILU(T,P)
1.d-4 ! Threshold T for ILU(T,P)
%%%%%%%%%%% Second smoother, always ignored for non-ML %%%%%%%%%%%%%%%%
NONE ! Second (post) smoother, ignored if NONE
1 ! Number of sweeps for (post) smoother
0 ! Number of overlap layers for AS preconditioner
HALO ! AS restriction operator: NONE HALO
NONE ! AS prolongation operator: NONE SUM AVG
ILU ! Subdomain solver for BJAC/AS: JACOBI GS BGS ILU ILUT MILU MUMPS SLU UMF
0 ! Fill level P for ILU(P) and ILU(T,P)
1.d-4 ! Threshold T for ILU(T,P)
%%%%%%%%%%% Multilevel parameters %%%%%%%%%%%%%%%%
VCYCLE ! Type of multilevel CYCLE: VCYCLE WCYCLE KCYCLE MULT ADD
4 ! Number of outer sweeps for ML
-3 ! Max Number of levels in a multilevel preconditioner; if <0, lib default
-3 ! Target coarse matrix size; if <0, lib default
SMOOTHED ! Type of aggregation: SMOOTHED UNSMOOTHED
DEC ! Parallel aggregation: DEC, SYMDEC
NATURAL ! Ordering of aggregation NATURAL DEGREE
FILTER ! Filtering of matrix: FILTER NOFILTER
-1.5 ! Coarsening ratio, if < 0 use library default
-2 ! Number of thresholds in vector, next line ignored if <= 0
0.05 0.025 ! Thresholds
-0.0100d0 ! Smoothed aggregation threshold, ignored if < 0
%%%%%%%%%%% Coarse level solver %%%%%%%%%%%%%%%%
UMF ! Coarsest-level solver: MUMPS UMF SLU SLUDIST JACOBI GS BJAC
UMF ! Coarsest-level subsolver for BJAC: ILU ILUT MILU UMF MUMPS SLU
REPL ! Coarsest-level matrix distribution: DIST REPL
1 ! Coarsest-level fillin P for ILU(P) and ILU(T,P)
1.d-4 ! Coarsest-level threshold T for ILU(T,P)
1 ! Number of sweeps for JACOBI/GS/BJAC coarsest-level solver