MatILUDTFactor

 Performs a drop tolerance ILU factorization.

Synopsis

#include "petscmat.h" 
int MatILUDTFactor(Mat mat,MatILUInfo *info,IS row,IS col,Mat *fact)
Collective on Mat

Input Parameters

mat - the matrix
info - information about the factorization to be done
row - row permutation
col - column permutation

Output Parameters

fact -the factored matrix

Notes

Most users should employ the simplified SLES interface for linear solvers instead of working directly with matrix algebra routines such as this. See, e.g., SLESCreate().

This is currently only supported for the SeqAIJ matrix format using code from Yousef Saad's SPARSEKIT2 package (translated to C with f2c) and/or Matlab. SPARSEKIT2 is copyrighted by Yousef Saad with the GNU copyright and thus can be distributed with PETSc.

See Also

MatLUFactorSymbolic(), MatLUFactorNumeric(), MatCholeskyFactor(), MatILUInfo

Level:developer
Location:src/mat/interface/matrix.c
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