petsc-3.13.6 2020-09-29
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 on Mat
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 simplified KSP interface for linear solvers
instead of working directly with matrix algebra routines such as this.
See, e.g., KSPCreate().
See Also
MatLUFactorSymbolic(), MatCholeskyFactor(), MatCholeskyFactorNumeric()
MatGetOrdering()
Developer Note: fortran interface is not autogenerated as the f90
interface defintion cannot be generated correctly [due to MatFactorInfo]
Level
developer
Location
src/mat/interface/matrix.c
Implementations
MatCholeskyFactorSymbolic_SparseElemental in src/mat/impls/aij/mpi/clique/clique.cxx
MatCholeskyFactorSymbolic_AIJMKL_CPARDISO in src/mat/impls/aij/mpi/mkl_cpardiso/mkl_cpardiso.c
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_SeqAIJ_inplace in src/mat/impls/aij/seq/aijfact.c
MatCholeskyFactorSymbolic_AIJMKL_PARDISO in src/mat/impls/aij/seq/mkl_pardiso/mkl_pardiso.c
MatCholeskyFactorSymbolic_SeqAIJCUSPARSE in src/mat/impls/aij/seq/seqcusparse/aijcusparse.cu
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_CHOLMOD in src/mat/impls/sbaij/seq/cholmod/sbaijcholmod.c
MatCholeskyFactorSymbolic_SeqSBAIJ_MSR in src/mat/impls/sbaij/seq/sbaijfact.c
MatCholeskyFactorSymbolic_SeqSBAIJ in src/mat/impls/sbaij/seq/sbaijfact.c
MatCholeskyFactorSymbolic_SeqSBAIJ_inplace in src/mat/impls/sbaij/seq/sbaijfact.c
Index of all Mat routines
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Index of all manual pages