ug4
sparsematrix_print.h
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1 /*
2  * Copyright (c) 2010-2015: G-CSC, Goethe University Frankfurt
3  * Author: Martin Rupp
4  *
5  * This file is part of UG4.
6  *
7  * UG4 is free software: you can redistribute it and/or modify it under the
8  * terms of the GNU Lesser General Public License version 3 (as published by the
9  * Free Software Foundation) with the following additional attribution
10  * requirements (according to LGPL/GPL v3 §7):
11  *
12  * (1) The following notice must be displayed in the Appropriate Legal Notices
13  * of covered and combined works: "Based on UG4 (www.ug4.org/license)".
14  *
15  * (2) The following notice must be displayed at a prominent place in the
16  * terminal output of covered works: "Based on UG4 (www.ug4.org/license)".
17  *
18  * (3) The following bibliography is recommended for citation and must be
19  * preserved in all covered files:
20  * "Reiter, S., Vogel, A., Heppner, I., Rupp, M., and Wittum, G. A massively
21  * parallel geometric multigrid solver on hierarchically distributed grids.
22  * Computing and visualization in science 16, 4 (2013), 151-164"
23  * "Vogel, A., Reiter, S., Rupp, M., Nägel, A., and Wittum, G. UG4 -- a novel
24  * flexible software system for simulating pde based models on high performance
25  * computers. Computing and visualization in science 16, 4 (2013), 165-179"
26  *
27  * This program is distributed in the hope that it will be useful,
28  * but WITHOUT ANY WARRANTY; without even the implied warranty of
29  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
30  * GNU Lesser General Public License for more details.
31  */
32 
33 #ifndef __H__UG__CPU_ALGEBRA__SPARSEMATRIX_PRINT__
34 #define __H__UG__CPU_ALGEBRA__SPARSEMATRIX_PRINT__
35 
36 #include "sparsematrix.h"
37 #include "common/common.h"
38 
39 namespace ug {
40 
43 
46 template<typename T>
47 void SparseMatrix<T>::print(const char * const text) const
48 {
49  UG_LOG("================= SparseMatrix " << num_rows() << "x" << num_cols() << " =================\n");
50  for(size_t i=0; i < num_rows(); i++)
51  printrow(i);
52 }
53 
54 
57 template<typename T>
58 void SparseMatrix<T>::printrow(size_t row) const
59 {
60  UG_LOG("row " << row << ": ");
61  for(const_row_iterator it=begin_row(row); it != end_row(row); ++it)
62  {
63  if(it.value() == 0.0) continue;
64  UG_LOG(" ");
65  UG_LOG("(" << it.index() << " -> " << it.value() << ")");
66  }
67 
68  UG_LOG("\n");
69 }
70 
71 template<typename T>
73 {
74  std::cout << *this;
75 }
76 
77 // end group crs_algebra
79 
80 }
81 #endif // __H__UG__CPU_ALGEBRA__SPARSEMATRIX_PRINT__
size_t num_cols() const
Definition: sparsematrix_interface.h:77
size_t num_rows() const
Definition: sparsematrix_interface.h:76
Definition: sparsematrix.h:421
sparse matrix for big, variable sparse matrices.
Definition: sparsematrix.h:99
void print(const char *const name=NULL) const
Definition: sparsematrix_print.h:47
#define UG_LOG(msg)
Definition: log.h:367
the ug namespace
const_row_iterator end_row(size_t row) const
const_row_iterator begin_row(size_t row) const