PCILUReorderForNonzeroDiagonal

reorders rows/columns of matrix to remove zeros from diagonal

Synopsis

#include "petscpc.h"  
PetscErrorCode PETSCKSP_DLLEXPORT PCILUReorderForNonzeroDiagonal(PC pc,PetscReal rtol)
Collective on PC

Input Parameters

pc - the preconditioner context
tol - diagonal entries smaller than this in absolute value are considered zero

Options Database Key

-pc_lu_nonzeros_along_diagonal -

Keywords

PC, set, factorization, direct, fill

See Also

PCILUSetFill(), MatReorderForNonzeroDiagonal()

Level:intermediate
Location:
src/ksp/pc/impls/factor/ilu/ilu.c
Index of all PC routines
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Index of all manual pages