MatCholeskyFactorSymbolic#
Performs symbolic Cholesky factorization of a symmetric matrix.
Synopsis#
#include "petscmat.h" 
PetscErrorCode MatCholeskyFactorSymbolic(Mat fact, Mat mat, IS perm, const MatFactorInfo *info)
Collective
Input Parameters#
- fact - the factor matrix obtained with - MatGetFactor()
- mat - the matrix 
- perm - row and column permutations 
- info - options for factorization, includes 
          fill - expected fill as ratio of original fill.
          dtcol - pivot tolerance (0 no pivot, 1 full column pivoting)
                   Run with the option -info to determine an optimal value to use
Notes#
See MatLUFactorSymbolic() for the nonsymmetric case.  See also
MatCholeskyFactor() and MatCholeskyFactorNumeric().
Most users should employ the KSP interface for linear solvers
instead of working directly with matrix algebra routines such as this.
See, e.g., KSPCreate().
Developer Note#
The Fortran interface is not autogenerated as the
interface definition cannot be generated correctly [due to MatFactorInfo]
See Also#
Matrices, Mat, Matrix Factorization, MatFactorInfo, MatGetFactor(), MatLUFactorSymbolic(), MatCholeskyFactor(), MatCholeskyFactorNumeric()
MatGetOrdering()
Level#
developer
Location#
Implementations#
MatCholeskyFactorSymbolic_MUMPS() in src/mat/impls/aij/mpi/mumps/mumps.c
MatCholeskyFactorSymbolic_SBAIJPASTIX() in src/mat/impls/aij/mpi/pastix/pastix.c
MatCholeskyFactorSymbolic_SuperLU_DIST() in src/mat/impls/aij/mpi/superlu_dist/superlu_dist.c
MatCholeskyFactorSymbolic_SeqAIJ() in src/mat/impls/aij/seq/aijfact.c
MatCholeskyFactorSymbolic_SeqAIJCUSPARSE() in src/mat/impls/aij/seq/seqcusparse/aijcusparse.cu
MatCholeskyFactorSymbolic_SeqAIJHIPSPARSE() in src/mat/impls/aij/seq/seqhipsparse/aijhipsparse.hip.c
MatCholeskyFactorSymbolic_SeqBAIJ() in src/mat/impls/baij/seq/baijfact.c
MatCholeskyFactorSymbolic_SeqDense() in src/mat/impls/dense/seq/dense.c
MatCholeskyFactorSymbolic_Elemental() in src/mat/impls/elemental/matelem.cxx
MatCholeskyFactorSymbolic_Htool() in src/mat/impls/htool/htool.cxx
MatCholeskyFactorSymbolic_CHOLMOD() in src/mat/impls/sbaij/seq/cholmod/sbaijcholmod.c
MatCholeskyFactorSymbolic_SeqSBAIJ() in src/mat/impls/sbaij/seq/sbaijfact.c
MatCholeskyFactorSymbolic_ScaLAPACK() in src/mat/impls/scalapack/matscalapack.c
MatCholeskyFactorSymbolic_HT() in src/mat/impls/transpose/htransm.c
MatCholeskyFactorSymbolic_Transpose() in src/mat/impls/transpose/transm.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages