MatLUFactorSymbolic#
Performs symbolic LU factorization of matrix. Call this routine before calling MatLUFactorNumeric() and after MatGetFactor().
Synopsis#
#include "petscmat.h"
PetscErrorCode MatLUFactorSymbolic(Mat fact, Mat mat, IS row, IS col, const MatFactorInfo *info)
Collective
Input Parameters#
fact - the factor matrix obtained with
MatGetFactor()mat - the matrix
row - the row permutation
col - the column permutation
info - options for factorization, includes
fill - expected fill as ratio of original fill. Run with the option -info to determine an optimal value to use
dtcol - pivot tolerance (0 no pivot, 1 full column pivoting)
Notes#
See Matrix Factorization for additional information about factorizations
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().
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, MatGetFactor(), MatLUFactor(), MatLUFactorNumeric(), MatCholeskyFactor(), MatFactorInfo, MatFactorInfoInitialize()
Level#
developer
Location#
Examples#
Implementations#
MatLUFactorSymbolic_AIJMUMPS() in src/mat/impls/aij/mpi/mumps/mumps.c
MatLUFactorSymbolic_BAIJMUMPS() in src/mat/impls/aij/mpi/mumps/mumps.c
MatLUFactorSymbolic_AIJPASTIX() in src/mat/impls/aij/mpi/pastix/pastix.c
MatLUFactorSymbolic_STRUMPACK() in src/mat/impls/aij/mpi/strumpack/strumpack.c
MatLUFactorSymbolic_SuperLU_DIST() in src/mat/impls/aij/mpi/superlu_dist/superlu_dist.c
MatLUFactorSymbolic_SeqAIJ() in src/mat/impls/aij/seq/aijfact.c
MatLUFactorSymbolic_Essl() in src/mat/impls/aij/seq/essl/essl.c
MatLUFactorSymbolic_KLU() in src/mat/impls/aij/seq/klu/klu.c
MatLUFactorSymbolic_SeqAIJKokkos() in src/mat/impls/aij/seq/kokkos/aijkok.kokkos.cxx
MatLUFactorSymbolic_LUSOL() in src/mat/impls/aij/seq/lusol/lusol.c
MatLUFactorSymbolic_Matlab() in src/mat/impls/aij/seq/matlab/aijmatlab.c
MatLUFactorSymbolic_SeqAIJCUSPARSE() in src/mat/impls/aij/seq/seqcusparse/aijcusparse.cu
MatLUFactorSymbolic_SeqAIJHIPSPARSE() in src/mat/impls/aij/seq/seqhipsparse/aijhipsparse.hip.c
MatLUFactorSymbolic_SuperLU() in src/mat/impls/aij/seq/superlu/superlu.c
MatLUFactorSymbolic_UMFPACK() in src/mat/impls/aij/seq/umfpack/umfpack.c
MatLUFactorSymbolic_SeqBAIJ() in src/mat/impls/baij/seq/baijfact3.c
MatLUFactorSymbolic_SeqDense() in src/mat/impls/dense/seq/dense.c
MatLUFactorSymbolic_Elemental() in src/mat/impls/elemental/matelem.cxx
MatLUFactorSymbolic_Htool() in src/mat/impls/htool/htool.cxx
MatLUFactorSymbolic_ScaLAPACK() in src/mat/impls/scalapack/matscalapack.c
MatLUFactorSymbolic_HT() in src/mat/impls/transpose/htransm.c
MatLUFactorSymbolic_Transpose() in src/mat/impls/transpose/transm.c
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