MATSOLVERKLU#
“klu” - A matrix type providing direct solvers, LU, for sequential matrices via the external package KLU. ./configure --download-suitesparse to install PETSc to use KLU
Use -pc_type lu -pc_factor_mat_solver_type klu to use this direct solver
Consult KLU documentation for more information on the options database keys below.
Options Database Keys#
- -mat_klu_pivot_tol <0.001> - Partial pivoting tolerance 
- -mat_klu_use_btf <1> - Use BTF preordering 
- -mat_klu_ordering - - KLU reordering scheme to reduce fill-in (choose one of)- AMD,- COLAMD,- PETSC
- -mat_klu_row_scale - - Matrix row scaling (choose one of)- NONE,- SUM,- MAX
Note#
KLU is part of SuiteSparse http://faculty.cse.tamu.edu/davis/suitesparse.html
See Also#
Matrices, Mat, PCLU, MATSOLVERUMFPACK, MATSOLVERCHOLMOD, PCFactorSetMatSolverType(), MatSolverType
Level#
beginner
Location#
src/mat/impls/aij/seq/klu/klu.c
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Table of Contents for all manual pages
Index of all manual pages