int MatSetUnfactored(Mat mat)Collective on Mat
Note that one can specify in-place ILU(0) factorization by calling
PCType(pc,PCILU);
PCILUSeUseInPlace(pc);
or by using the options -pc_type ilu -
pc_ilu_in_place
In-place factorization ILU(0) can also be used as a localsolver for the blocks within the block Jacobi or additive Schwarzmethods (runtime option: -sub_pc_ilu_in_place). See the discussionof these preconditioners in the users manual for details on settinglocal solver options.
Location: src/mat/interface/matrix.c
Matrix Index
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