PCLUSetReuseOrdering
When similar matrices are factored, this causes the ordering computed in the first factor to be used for all following factors; applies to both fill and drop tolerance LUs.
Synopsis
int PCLUSetReuseOrdering(PC pc,PetscTruth flag)
Collective on PC
Input Parameters
pc | - the preconditioner context
|
flag | - PETSC_TRUE to reuse else PETSC_FALSE
|
Options Database Key
-pc_lu_reuse_ordering -Activate PCLUSetReuseOrdering()
Keywords
PC, levels, reordering, factorization, incomplete, LU
See Also
PCLUSetReuseFill(), PCILUSetReuseOrdering(), PCILUSetReuseFill()
Level:intermediate
Location:src/sles/pc/impls/lu/lu.c
PC Index
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