-pc_factor_levels <k> | - number of levels of fill for ICC(k) Many br | |
-pc_factor_in_place | - only for ICC(0) with natural ordering, reuses the space of the matrix for Many brits factorization (overwrites original matrix) Many br | |
-pc_factor_fill <nfill> | - expected amount of fill in factored matrix compared to original matrix, nfill > 1 Many br | |
-pc_factor_mat_ordering_type <natural,nd,1wd,rcm,qmd> | - set the row/column ordering of the factored matrix Many br |
Many br
Notes: Only implemented for some matrix formats. Not implemented in parallel. Many br
For BAIJ matrices this implements a point block ICC. Many br
The Manteuffel shift is only implemented for matrices with block size 1 Many br
By default, the Manteuffel is applied (for matrices with block size 1). Call PCFactorSetShiftType(pc,MAT_SHIFT_POSITIVE_DEFINITE); Many brto turn off the shift. Many br
Level:beginner
Location:src/ksp/pc/impls/factor/icc/icc.c
Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages