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/ksp/ksp/tutorials/ex52.c
src/tao/constrained/tutorials/maros.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages