PETSc version 3.17.4
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# MATSOLVERSUPERLU

"superlu" - A solver package providing solvers LU and ILU for sequential matrices via the external package SuperLU. 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 <FALSE> | - Equil (None)
| -mat_superlu_colperm <COLAMD> | - (choose one of) NATURAL MMD_ATA MMD_AT_PLUS_A COLAMD
| -mat_superlu_iterrefine <NOREFINE> | - (choose one of) NOREFINE SINGLE DOUBLE EXTRA
| -mat_superlu_symmetricmode: <FALSE> | - SymmetricMode (None)
| -mat_superlu_diagpivotthresh <1> | - DiagPivotThresh (None)
| -mat_superlu_pivotgrowth <FALSE> | - PivotGrowth (None)
| -mat_superlu_conditionnumber <FALSE> | - ConditionNumber (None)
| -mat_superlu_rowperm <NOROWPERM> | - (choose one of) NOROWPERM LargeDiag
| -mat_superlu_replacetinypivot <FALSE> | - ReplaceTinyPivot (None)
| -mat_superlu_printstat <FALSE> | - 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 currently use ordering provided by PETSc.

### See Also

PCLU, PCILU, MATSOLVERSUPERLU_DIST, MATSOLVERMUMPS, PCFactorSetMatSolverType(), MatSolverType

### Level

beginner

### Location

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

### Examples

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