MATSOLVERSUPERLU#

“superlu” - A solver package providing solvers LU and ILU for sequential matrices via the external package SuperLU https://portal.nersc.gov/project/sparse/superlu/superlu_ug.pdf Use ./configure --download-superlu to have PETSc installed with SuperLU

Use -pc_type lu -pc_factor_mat_solver_type superlu to use this direct solver

Options Database Keys#

-mat_superlu_equil - Equil (None)
-mat_superlu_colperm - (choose one of) NATURAL, MMD_ATA MMD_AT_PLUS_A, COLAMD
-mat_superlu_iterrefine - (choose one of) NOREFINE, SINGLE, DOUBLE, EXTRA
-mat_superlu_symmetricmode: - SymmetricMode (None)
-mat_superlu_diagpivotthresh <1> - DiagPivotThresh (None)
-mat_superlu_pivotgrowth - PivotGrowth (None)
-mat_superlu_conditionnumber - ConditionNumber (None)
-mat_superlu_rowperm - (choose one of) NOROWPERM, LargeDiag
-mat_superlu_replacetinypivot - ReplaceTinyPivot (None)
-mat_superlu_printstat - PrintStat (None)
-mat_superlu_lwork <0> - size of work array in bytes used by factorization (None)
-mat_superlu_ilu_droptol <0> - ILU_DropTol (None)
-mat_superlu_ilu_filltol <0> - ILU_FillTol (None)
-mat_superlu_ilu_fillfactor <0> - ILU_FillFactor (None)
-mat_superlu_ilu_droprull <0> - ILU_DropRule (None)
-mat_superlu_ilu_norm <0> - ILU_Norm (None)
-mat_superlu_ilu_milu <0> - ILU_MILU (None)

Notes#

Do not confuse this with MATSOLVERSUPERLU_DIST which is for parallel sparse solves

Cannot use ordering provided by PETSc, provides its own.

Level#

beginner

Location#

src/mat/impls/aij/seq/superlu/superlu.c

Examples#

src/ksp/ksp/tutorials/ex52.c
src/tao/constrained/tutorials/maros.c

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Index of all manual pages