PCILUSetUseInPlace
Tells the system to do an in-place incomplete factorization. Collective on PC
Synopsis
int PCILUSetUseInPlace(PC pc)
Input Parameters
pc | - the preconditioner context
|
Options Database Key
-pc_ilu_in_place | - Activates in-place factorization
|
Notes
PCILUSetUseInPlace() is intended for use with matrix-free variants of
Krylov methods, or when a different matrices are employed for the linear
system and preconditioner. Do NOT use this option if the linear system
matrix also serves as the preconditioning matrix, since the factored
matrix would then overwrite the original matrix.
Keywords
PC, set, factorization, inplace, in-place, ILU
See Also
PCLUSetUseInPlace()
Level:intermediate
Location:src/sles/pc/impls/ilu/ilu.c
PC Index
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