Amesos2 - Direct Sparse Solver Interfaces Version of the Day
Amesos2_MatrixTraits.hpp
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44
45#ifndef AMESOS2_MATRIXTRAITS_HPP
46#define AMESOS2_MATRIXTRAITS_HPP
47
48#include "Amesos2_config.h"
49
50#include <Tpetra_CrsMatrix.hpp>
51
52
53#ifdef HAVE_AMESOS2_EPETRA
54# include <Epetra_RowMatrix.h>
55# include <Epetra_CrsMatrix.h>
56// # include <Epetra_MsrMatrix.h>
57# include <Epetra_VbrMatrix.h>
58// and perhaps some others later...
59#endif
60
61#include "Amesos2_Util.hpp"
62
63namespace Amesos2 {
64
65 // The declaration
66 template <class Matrix>
67 struct MatrixTraits {};
68
69 /*******************
70 * Specializations *
71 *******************/
72
73 template < typename Scalar,
74 typename LocalOrdinal,
75 typename GlobalOrdinal,
76 typename Node >
77 struct MatrixTraits<
78 Tpetra::RowMatrix<Scalar,
79 LocalOrdinal,
80 GlobalOrdinal,
81 Node> > {
82 typedef Scalar scalar_t;
83 typedef LocalOrdinal local_ordinal_t;
84 typedef GlobalOrdinal global_ordinal_t;
85 typedef Node node_t;
86
87 typedef Tpetra::RowMatrix<Scalar, LocalOrdinal, GlobalOrdinal, Node> matrix_type;
88
89 typedef typename matrix_type::nonconst_global_inds_host_view_type global_host_idx_type;
90 typedef typename matrix_type::nonconst_values_host_view_type global_host_val_type;
91
92 typedef row_access major_access;
93 };
94
95 template < typename Scalar,
96 typename LocalOrdinal,
97 typename GlobalOrdinal,
98 typename Node >
99 struct MatrixTraits<
100 Tpetra::CrsMatrix<Scalar,
101 LocalOrdinal,
102 GlobalOrdinal,
103 Node> > {
104 typedef Scalar scalar_t;
105 typedef LocalOrdinal local_ordinal_t;
106 typedef GlobalOrdinal global_ordinal_t;
107 typedef Node node_t;
108
109 typedef Tpetra::CrsMatrix<Scalar, LocalOrdinal, GlobalOrdinal, Node> matrix_type;
110
111 typedef typename matrix_type::nonconst_global_inds_host_view_type global_host_idx_type;
112 typedef typename matrix_type::nonconst_values_host_view_type global_host_val_type;
113
114 typedef row_access major_access;
115 };
116
117 template < typename Scalar,
118 typename LocalOrdinal,
119 typename DeviceType >
120 struct MatrixTraits<
121 KokkosSparse::CrsMatrix<Scalar,
122 LocalOrdinal,
123 DeviceType> > {
124 typedef Scalar scalar_t;
125 typedef LocalOrdinal local_ordinal_t;
126 typedef Tpetra::Map<>::global_ordinal_type global_ordinal_t;
127 typedef LocalOrdinal global_size_t;
128
129 typedef KokkosSparse::CrsMatrix<Scalar, LocalOrdinal, DeviceType> matrix_type;
130 typedef Tpetra::Map<>::node_type node_t;
131
132 typedef typename matrix_type::HostMirror::index_type global_host_idx_type;
133 typedef typename matrix_type::HostMirror::values_type global_host_val_type;
134
135 typedef row_access major_access;
136 };
137
138#ifdef HAVE_AMESOS2_EPETRA
139
140 template <>
141 struct MatrixTraits<Epetra_RowMatrix> {
142 typedef double scalar_t;
143 typedef int local_ordinal_t;
144 typedef Tpetra::Map<>::global_ordinal_type global_ordinal_t;
145 typedef Tpetra::Map<>::node_type node_t;
146
147 typedef Epetra_RowMatrix matrix_type;
148 typedef matrix_type local_matrix_t;
149 typedef int* sparse_ptr_type;
150 typedef int* sparse_idx_type;
151 typedef double* sparse_values_type;
152
153 typedef Kokkos::View<global_ordinal_t*, Kokkos::HostSpace> global_host_idx_type;
154 typedef Kokkos::View<scalar_t*, Kokkos::HostSpace> global_host_val_type;
155
156 typedef row_access major_access;
157 };
158
159 template <>
160 struct MatrixTraits<Epetra_CrsMatrix> {
161 typedef double scalar_t;
162 typedef int local_ordinal_t;
163 typedef Tpetra::Map<>::global_ordinal_type global_ordinal_t;
164 typedef Tpetra::Map<>::node_type node_t;
165
166 typedef Epetra_CrsMatrix matrix_type;
167 typedef matrix_type local_matrix_t;
168 typedef int* sparse_ptr_type;
169 typedef int* sparse_idx_type;
170 typedef double* sparse_values_type;
171
172 typedef Kokkos::View<global_ordinal_t*, Kokkos::HostSpace> global_host_idx_type;
173 typedef Kokkos::View<scalar_t*, Kokkos::HostSpace> global_host_val_type;
174
175 typedef row_access major_access;
176 };
177
178 // template <>
179 // struct MatrixTraits<Epetra_MsrMatrix> {
180 // typedef double scalar_t;
181 // typedef int local_ordinal_t;
182 // typedef Tpetra::Map<>::global_ordinal_type global_ordinal_t;
183 // typedef Tpetra::Map<>::node_type node_t;
184
185 // typedef row_access major_access;
186 // };
187
188 template <>
189 struct MatrixTraits<Epetra_VbrMatrix> {
190 typedef double scalar_t;
191 typedef int local_ordinal_t;
192 typedef Tpetra::Map<>::global_ordinal_type global_ordinal_t;
193 typedef Tpetra::Map<>::node_type node_t;
194
195 typedef Epetra_VbrMatrix matrix_type;
196 typedef matrix_type local_matrix_t;
197 typedef int* sparse_ptr_type;
198 typedef int* sparse_idx_type;
199 typedef double* sparse_values_type;
200
201 typedef row_access major_access;
202 };
203
204#endif
205
206}
207
208#endif // AMESOS2_MATRIXTRAITS_HPP
Utility functions for Amesos2.