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
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