petsc-3.7.1 2016-05-15
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MatICCFactor

Performs in-place incomplete Cholesky factorization of matrix.

Synopsis

#include "petscmat.h" 
PetscErrorCode MatICCFactor(Mat mat,IS row,const MatFactorInfo *info)
Collective on Mat Many br

Input Parameters

mat - the matrix Many br
row - row/column permutation Many br
fill - expected fill factor >= 1.0 Many br
level - level of fill, for ICC(k) Many br

Notes

Probably really in-place only when level of fill is zero, otherwise allocates Many brnew space to store factored matrix and deletes previous memory. Many br

Most users should employ the simplified KSP interface for linear solvers Many brinstead of working directly with matrix algebra routines such as this. Many brSee, e.g., KSPCreate(). Many br

Many br

See Also

MatICCFactorSymbolic(), MatLUFactorNumeric(), MatCholeskyFactor()

Developer Note: fortran interface is not autogenerated as the f90 Many brinterface defintion cannot be generated correctly [due to MatFactorInfo] Many br

Level:developer
Location:
src/mat/interface/matrix.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages