MatCholeskyFactor

 Performs in-place Cholesky factorization of a symmetric matrix.

Synopsis

#include "petscmat.h" 
int MatCholeskyFactor(Mat mat,IS perm,PetscReal f)
Collective on Mat

Input Parameters

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

Notes

See MatLUFactor() for the nonsymmetric case. See also MatCholeskyFactorSymbolic(), and MatCholeskyFactorNumeric().

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

MatLUFactor(), MatCholeskyFactorSymbolic(), MatCholeskyFactorNumeric()
MatGetOrdering()

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