libMesh
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dense_matrix.C
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1// The libMesh Finite Element Library.
2// Copyright (C) 2002-2026 Benjamin S. Kirk, John W. Peterson, Roy H. Stogner
3
4// This library is free software; you can redistribute it and/or
5// modify it under the terms of the GNU Lesser General Public
6// License as published by the Free Software Foundation; either
7// version 2.1 of the License, or (at your option) any later version.
8
9// This library is distributed in the hope that it will be useful,
10// but WITHOUT ANY WARRANTY; without even the implied warranty of
11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12// Lesser General Public License for more details.
13
14// You should have received a copy of the GNU Lesser General Public
15// License along with this library; if not, write to the Free Software
16// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17
18
19// Local Includes
20#include "libmesh/dense_matrix_impl.h"
21
22namespace libMesh
23{
24
25//--------------------------------------------------------------
26// Explicit instantiations
27#define LIBMESH_VMA_INSTANTIATE(T1,T2,T3) \
28 template LIBMESH_EXPORT void DenseMatrix<T1>::vector_mult_add \
29 (DenseVector< \
30 CompareTypes<T1, \
31 CompareTypes<T2,T3>::supertype>::supertype> & dest, \
32 const T2 factor, \
33 const DenseVector<T3> & arg) const
34
35template class LIBMESH_EXPORT DenseMatrix<Real>;
36template LIBMESH_EXPORT void DenseMatrix<Real>::cholesky_solve(const DenseVector<Real> &, DenseVector<Real> &);
37template LIBMESH_EXPORT void DenseMatrix<Real>::_cholesky_back_substitute(const DenseVector<Real> &, DenseVector<Real> &) const;
41#ifndef LIBMESH_DEFAULT_SINGLE_PRECISION
43#endif
44#ifndef LIBMESH_DEFAULT_DOUBLE_PRECISION
46#endif
47
48#ifdef LIBMESH_USE_COMPLEX_NUMBERS
49template class LIBMESH_EXPORT DenseMatrix<Complex>;
53 const DenseVector<Complex> & arg) const;
55 const DenseVector<Complex> & arg) const;
59
60// complex<int> and complex<float_foo> don't interact well
61//LIBMESH_VMA_INSTANTIATE(Real,std::complex<int>,Complex);
62//LIBMESH_VMA_INSTANTIATE(Complex,std::complex<int>,Complex);
63//LIBMESH_VMA_INSTANTIATE(Complex,std::complex<int>,Real);
64
69#ifndef LIBMESH_DEFAULT_SINGLE_PRECISION
71#endif
73
77LIBMESH_VMA_INSTANTIATE(Real,std::complex<double>,Complex);
78#ifndef LIBMESH_DEFAULT_DOUBLE_PRECISION
80#endif
81LIBMESH_VMA_INSTANTIATE(Complex,std::complex<double>,Real);
82#endif
83
84} // namespace libMesh
Defines a dense matrix for use in Finite Element-type computations.
void vector_mult(DenseVector< T > &dest, const DenseVector< T > &arg) const
Performs the matrix-vector multiplication, dest := (*this) * arg.
void cholesky_solve(const DenseVector< T2 > &b, DenseVector< T2 > &x)
For symmetric positive definite (SPD) matrices.
void _cholesky_back_substitute(const DenseVector< T2 > &b, DenseVector< T2 > &x) const
Solves the equation Ax=b for the unknown value x and rhs b based on the Cholesky factorization of A.
void vector_mult_transpose(DenseVector< T > &dest, const DenseVector< T > &arg) const
Performs the matrix-vector multiplication, dest := (*this)^T * arg.
Defines a dense vector for use in Finite Element-type computations.
The libMesh namespace provides an interface to certain functionality in the library.
std::complex< Real > Complex
LIBMESH_VMA_INSTANTIATE(Real, int, Real)
DIE A HORRIBLE DEATH HERE typedef LIBMESH_DEFAULT_SCALAR_TYPE Real