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.
See Also#
Matrices, Mat, PCLU, PCILU, MATSOLVERSUPERLU_DIST, MATSOLVERMUMPS, PCFactorSetMatSolverType(), MatSolverType
Level#
beginner
Location#
Examples#
src/tao/constrained/tutorials/maros.c
src/ksp/ksp/tutorials/ex52.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages