MatCholeskyFactorNumeric

Performs numeric Cholesky factorization of a symmetric matrix. Call this routine after first calling MatGetFactor() and MatCholeskyFactorSymbolic().

Synopsis

#include "petscmat.h" 
PetscErrorCode MatCholeskyFactorNumeric(Mat fact, Mat mat, const MatFactorInfo *info)

Collective

Input Parameters

• fact - the factor matrix obtained with MatGetFactor(), where the factored values are stored

• mat - the initial matrix that is to be factored

• info - options for factorization

Note

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(), MatCholeskyFactorSymbolic(), MatCholeskyFactor(), MatLUFactorNumeric()

Level

developer

Location

src/mat/interface/matrix.c

Implementations

MatCholeskyFactorNumeric_SeqAIJ() in src/mat/impls/aij/seq/aijfact.c
MatCholeskyFactorNumeric_SeqAIJCUSPARSE() in src/mat/impls/aij/seq/seqcusparse/aijcusparse.cu
MatCholeskyFactorNumeric_SeqAIJHIPSPARSE() in src/mat/impls/aij/seq/seqhipsparse/aijhipsparse.hip.c
MatCholeskyFactorNumeric_SeqDense() in src/mat/impls/dense/seq/dense.c
MatCholeskyFactorNumeric_Elemental() in src/mat/impls/elemental/matelem.cxx
MatCholeskyFactorNumeric_CHOLMOD() in src/mat/impls/sbaij/seq/cholmod/sbaijcholmod.c
MatCholeskyFactorNumeric_ScaLAPACK() in src/mat/impls/scalapack/matscalapack.c

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