MatICCFactorSymbolic

 Performs symbolic incomplete Cholesky factorization for a symmetric matrix. Use MatCholeskyFactorNumeric() to complete the factorization.

Synopsis

#include "petscmat.h" 
int MatICCFactorSymbolic(Mat mat,IS perm,PetscReal f,int fill,Mat *fact)
Collective on Mat

Input Parameters

mat - the matrix
perm - row and column permutation
fill - levels of fill
f - expected fill as ratio of original fill

Output Parameter

fact -the factored matrix

Notes

Currently only no-fill factorization is supported.

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().

See Also

MatCholeskyFactorNumeric(), MatCholeskyFactor()

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