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block_polynomial.h
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1/*
2 * Copyright 2008-2009 NVIDIA Corporation
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
21#pragma once
22
23#include <cusp/detail/config.h>
24
25#include <cusp/linear_operator.h>
26
27namespace cusp
28{
29namespace precond
30{
31namespace aggregation
32{
33// forward definitions
34template<typename MatrixType> struct sa_level;
35} // end namespace aggregation
36} // end namespace precond
37
38namespace relaxation
39{
40
41template <typename ValueType, typename MemorySpace, typename Orientation>
42class block_polynomial : public cusp::linear_operator<ValueType, MemorySpace>
43{
44public:
45
46 typedef Orientation orientation;
47
48 // note: default_coefficients lives on the host
49 cusp::array1d<ValueType, cusp::host_memory> default_coefficients;
50 cusp::array2d<ValueType, MemorySpace, Orientation> residual;
51 cusp::array2d<ValueType, MemorySpace, Orientation> h;
52 cusp::array2d<ValueType, MemorySpace, Orientation> y;
53
55
56 template <typename MatrixType, typename VectorType>
57 block_polynomial(const MatrixType& A, const VectorType& coefficients);
58
59 template <typename MemorySpace2>
61
62 template <typename MatrixType>
64
65 // ignores initial x
66 template<typename MatrixType, typename VectorType1, typename VectorType2>
67 void presmooth(const MatrixType& A, const VectorType1& b, VectorType2& x);
68
69 // smooths initial x
70 template<typename MatrixType, typename VectorType1, typename VectorType2>
71 void postsmooth(const MatrixType& A, const VectorType1& b, VectorType2& x);
72
73 template <typename MatrixType, typename VectorType1, typename VectorType2>
74 void operator()(const MatrixType& A, const VectorType1& b, VectorType2& x) const;
75
76 template <typename MatrixType, typename VectorType1, typename VectorType2, typename VectorType3>
77 void operator()(const MatrixType& A, const VectorType1& b, VectorType2& x, VectorType3& coeffients);
78};
79
80} // end namespace relaxation
81} // end namespace cusp
82
83#include <cusp/relaxation/block_polynomial.inl>
cusp::array2d< ValueType, MemorySpace, Orientation > y
void postsmooth(const MatrixType &A, const VectorType1 &b, VectorType2 &x)
block_polynomial(const block_polynomial< ValueType, MemorySpace2, Orientation > &A)
void presmooth(const MatrixType &A, const VectorType1 &b, VectorType2 &x)
block_polynomial(const MatrixType &A, const VectorType &coefficients)
block_polynomial(const cusp::precond::aggregation::sa_level< MatrixType > &sa_level)
cusp::array1d< ValueType, cusp::host_memory > default_coefficients
void operator()(const MatrixType &A, const VectorType1 &b, VectorType2 &x) const
cusp::array2d< ValueType, MemorySpace, Orientation > h
void operator()(const MatrixType &A, const VectorType1 &b, VectorType2 &x, VectorType3 &coeffients)
cusp::array2d< ValueType, MemorySpace, Orientation > residual