Xpetra_CrsMatrixUtils.hpp
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47 #ifndef PACKAGES_XPETRA_CRSMATRIX_UTILS_HPP_
48 #define PACKAGES_XPETRA_CRSMATRIX_UTILS_HPP_
49 
50 #include "Xpetra_ConfigDefs.hpp"
51 #include "Xpetra_Exceptions.hpp"
52 #include "Xpetra_Map.hpp" // definition of UnderlyingLib
53 
54 #ifdef HAVE_XPETRA_EPETRA
55 #include "Epetra_Util.h"
56 #endif
57 
58 #ifdef HAVE_XPETRA_TPETRA
59 #include "Tpetra_Import_Util2.hpp"
60 #endif
61 
62 namespace Xpetra {
63 
71  template <class Scalar,
72  class LocalOrdinal,
73  class GlobalOrdinal,
74  class Node>
75  class CrsMatrixUtils {
76 #undef XPETRA_CRSMATRIXUTILS_SHORT
77 
78  public:
79 
82  static void sortCrsEntries(const Teuchos::ArrayView<size_t>& CRS_rowptr,
83  const Teuchos::ArrayView<LocalOrdinal>& CRS_colind,
84  const Teuchos::ArrayView<Scalar>&CRS_vals,
85  const UnderlyingLib lib) {
86 
87  if(lib == Xpetra::UseEpetra) {
88 #if defined(HAVE_XPETRA_EPETRA)
89  throw(Xpetra::Exceptions::RuntimeError("Xpetra::CrsMatrixUtils::sortCrsEntries only available for GO=int or GO=long long with EpetraNode (Serial or OpenMP depending on configuration)"));
90 #endif // HAVE_XPETRA_EPETRA
91  } else if(lib == Xpetra::UseTpetra) {
92 #ifdef HAVE_XPETRA_TPETRA
93  Tpetra::Import_Util::sortCrsEntries(CRS_rowptr, CRS_colind, CRS_vals);
94 #endif // HAVE_XPETRA_TPETRA
95  }
96 
97  return;
98  }
99 
102  static void sortAndMergeCrsEntries(const Teuchos::ArrayView<size_t>& CRS_rowptr,
103  const Teuchos::ArrayView<LocalOrdinal>& CRS_colind,
104  const Teuchos::ArrayView<Scalar>&CRS_vals,
105  const UnderlyingLib lib) {
106 
107  if(lib == Xpetra::UseEpetra) {
108 #if defined(HAVE_XPETRA_EPETRA)
109  throw(Xpetra::Exceptions::RuntimeError("Xpetra::CrsMatrixUtils::sortAndMergeCrsEntries only available for GO=int or GO=long long with EpetraNode (Serial or OpenMP depending on configuration)"));
110 #endif // HAVE_XPETRA_EPETRA
111  } else if(lib == Xpetra::UseTpetra) {
112 #ifdef HAVE_XPETRA_TPETRA
113  Tpetra::Import_Util::sortAndMergeCrsEntries(CRS_rowptr, CRS_colind, CRS_vals);
114 #endif // HAVE_XPETRA_TPETRA
115  }
116 
117  return;
118  }
119 
120  }; // end class CrsMatrixUtils
121 
122 #ifdef HAVE_XPETRA_EPETRA
123 // Specialization for double, int, int, EpetraNode
124  template <>
125  class CrsMatrixUtils<double,int,int,EpetraNode> {
126  typedef double Scalar;
127  typedef int LocalOrdinal;
128  typedef int GlobalOrdinal;
129  typedef EpetraNode Node;
130 #undef XPETRA_CRSMATRIXUTILS_SHORT
131 
132  public:
133 
136  static void sortCrsEntries(const Teuchos::ArrayView<size_t>& CRS_rowptr,
137  const Teuchos::ArrayView<LocalOrdinal>& CRS_colind,
138  const Teuchos::ArrayView<Scalar>&CRS_vals,
139  const UnderlyingLib lib) {
140 
141  if(lib == Xpetra::UseEpetra) {
142 #if defined(HAVE_XPETRA_EPETRA)
143  int rv = Epetra_Util::SortCrsEntries(Teuchos::as<int>(CRS_rowptr.size()-1),
144  CRS_rowptr.getRawPtr(),
145  CRS_colind.getRawPtr(),
146  CRS_vals.getRawPtr());
147  if (rv != 0) {
148  throw Exceptions::RuntimeError("Epetra_Util::SortCrsEntries() return value of "
149  + Teuchos::toString(rv));
150  }
151 #endif // HAVE_XPETRA_EPETRA
152  } else if(lib == Xpetra::UseTpetra) {
153 #ifdef HAVE_XPETRA_TPETRA
154  Tpetra::Import_Util::sortCrsEntries(CRS_rowptr, CRS_colind, CRS_vals);
155 #endif // HAVE_XPETRA_TPETRA
156  }
157 
158  return;
159  }
160 
163  static void sortAndMergeCrsEntries(const Teuchos::ArrayView<size_t>& CRS_rowptr,
164  const Teuchos::ArrayView<LocalOrdinal>& CRS_colind,
165  const Teuchos::ArrayView<Scalar>&CRS_vals,
166  const UnderlyingLib lib) {
167 
168  if(lib == Xpetra::UseEpetra) {
169 #if defined(HAVE_XPETRA_EPETRA)
170  int rv = Epetra_Util::SortAndMergeCrsEntries(Teuchos::as<int>(CRS_rowptr.size()-1),
171  CRS_rowptr.getRawPtr(),
172  CRS_colind.getRawPtr(),
173  CRS_vals.getRawPtr());
174  if (rv != 0) {
175  throw Exceptions::RuntimeError("Epetra_Util::SortCrsEntries() return value of "
176  + Teuchos::toString(rv));
177  }
178 #endif // HAVE_XPETRA_EPETRA
179  } else if(lib == Xpetra::UseTpetra) {
180 #ifdef HAVE_XPETRA_TPETRA
181  Tpetra::Import_Util::sortAndMergeCrsEntries(CRS_rowptr, CRS_colind, CRS_vals);
182 #endif // HAVE_XPETRA_TPETRA
183  }
184 
185  return;
186  }
187 
188  }; // end class CrsMatrixUtils
189 
190 
191 // Specialization for double, int, long long, EpetraNode
192  template <>
193  class CrsMatrixUtils<double,int,long long,EpetraNode> {
194  typedef double Scalar;
195  typedef int LocalOrdinal;
196  typedef long long GlobalOrdinal;
197  typedef EpetraNode Node;
198 #undef XPETRA_CRSMATRIXUTILS_SHORT
199 
200  public:
201 
204  static void sortCrsEntries(const Teuchos::ArrayView<size_t>& CRS_rowptr,
205  const Teuchos::ArrayView<LocalOrdinal>& CRS_colind,
206  const Teuchos::ArrayView<Scalar>&CRS_vals,
207  const UnderlyingLib lib) {
208 
209  if(lib == Xpetra::UseEpetra) {
210 #if defined(HAVE_XPETRA_EPETRA)
211  int rv = Epetra_Util::SortCrsEntries(Teuchos::as<int>(CRS_rowptr.size()-1),
212  CRS_rowptr.getRawPtr(),
213  CRS_colind.getRawPtr(),
214  CRS_vals.getRawPtr());
215  if (rv != 0) {
216  throw Exceptions::RuntimeError("Epetra_Util::SortCrsEntries() return value of "
217  + Teuchos::toString(rv));
218  }
219 #endif // HAVE_XPETRA_EPETRA
220  } else if(lib == Xpetra::UseTpetra) {
221 #ifdef HAVE_XPETRA_TPETRA
222  Tpetra::Import_Util::sortCrsEntries(CRS_rowptr, CRS_colind, CRS_vals);
223 #endif // HAVE_XPETRA_TPETRA
224  }
225 
226  return;
227  }
228 
231  static void sortAndMergeCrsEntries(const Teuchos::ArrayView<size_t>& CRS_rowptr,
232  const Teuchos::ArrayView<LocalOrdinal>& CRS_colind,
233  const Teuchos::ArrayView<Scalar>&CRS_vals,
234  const UnderlyingLib lib) {
235 
236  if(lib == Xpetra::UseEpetra) {
237 #if defined(HAVE_XPETRA_EPETRA)
238  int rv = Epetra_Util::SortAndMergeCrsEntries(Teuchos::as<int>(CRS_rowptr.size()-1),
239  CRS_rowptr.getRawPtr(),
240  CRS_colind.getRawPtr(),
241  CRS_vals.getRawPtr());
242  if (rv != 0) {
243  throw Exceptions::RuntimeError("Epetra_Util::SortCrsEntries() return value of "
244  + Teuchos::toString(rv));
245  }
246 #endif // HAVE_XPETRA_EPETRA
247  } else if(lib == Xpetra::UseTpetra) {
248 #ifdef HAVE_XPETRA_TPETRA
249  Tpetra::Import_Util::sortAndMergeCrsEntries(CRS_rowptr, CRS_colind, CRS_vals);
250 #endif // HAVE_XPETRA_TPETRA
251  }
252 
253  return;
254  }
255 
256  }; // end class CrsMatrixUtils
257 #endif // HAVE_XPETRA_EPETRA for Epetra scpecialization
258 
259 } // end namespace Xpetra
260 
261 #define XPETRA_CRSMATRIXUTILS_SHORT
262 
263 #endif // PACKAGES_XPETRA_CRSMATRIX_UTILS_HPP_
Xpetra::CrsMatrixUtils::sortAndMergeCrsEntries
static void sortAndMergeCrsEntries(const Teuchos::ArrayView< size_t > &CRS_rowptr, const Teuchos::ArrayView< LocalOrdinal > &CRS_colind, const Teuchos::ArrayView< Scalar > &CRS_vals, const UnderlyingLib lib)
Sort and merge the entries of the (raw CSR) matrix by column index within each row.
Definition: Xpetra_CrsMatrixUtils.hpp:102
Epetra_Util::SortAndMergeCrsEntries
static int SortAndMergeCrsEntries(int NumRows, int *CRS_rowptr, int *CRS_colind, double *CRS_vals)
Xpetra
Xpetra namespace
Definition: Xpetra_BlockedCrsMatrix.hpp:86
Xpetra::CrsMatrixUtils
Xpetra utility class for CrsMatrix-related routines.
Definition: Xpetra_CrsMatrixUtils_fwd.hpp:51
Xpetra::Exceptions::RuntimeError
Exception throws to report errors in the internal logical of the program.
Definition: Xpetra_Exceptions.hpp:101
Teuchos::ArrayView::size
size_type size() const
Xpetra::CrsMatrixUtils< double, int, long long, EpetraNode >::sortCrsEntries
static void sortCrsEntries(const Teuchos::ArrayView< size_t > &CRS_rowptr, const Teuchos::ArrayView< LocalOrdinal > &CRS_colind, const Teuchos::ArrayView< Scalar > &CRS_vals, const UnderlyingLib lib)
Sort the entries of the (raw CSR) matrix by column index within each row.
Definition: Xpetra_CrsMatrixUtils.hpp:204
Epetra_Util::SortCrsEntries
static int SortCrsEntries(int NumRows, const int *CRS_rowptr, int *CRS_colind, double *CRS_vals)
Xpetra::CrsMatrixUtils< double, int, int, EpetraNode >::sortCrsEntries
static void sortCrsEntries(const Teuchos::ArrayView< size_t > &CRS_rowptr, const Teuchos::ArrayView< LocalOrdinal > &CRS_colind, const Teuchos::ArrayView< Scalar > &CRS_vals, const UnderlyingLib lib)
Sort the entries of the (raw CSR) matrix by column index within each row.
Definition: Xpetra_CrsMatrixUtils.hpp:136
Xpetra_Exceptions.hpp
Xpetra::CrsMatrixUtils< double, int, int, EpetraNode >::sortAndMergeCrsEntries
static void sortAndMergeCrsEntries(const Teuchos::ArrayView< size_t > &CRS_rowptr, const Teuchos::ArrayView< LocalOrdinal > &CRS_colind, const Teuchos::ArrayView< Scalar > &CRS_vals, const UnderlyingLib lib)
Sort and merge the entries of the (raw CSR) matrix by column index within each row.
Definition: Xpetra_CrsMatrixUtils.hpp:163
Xpetra::CrsMatrixUtils::sortCrsEntries
static void sortCrsEntries(const Teuchos::ArrayView< size_t > &CRS_rowptr, const Teuchos::ArrayView< LocalOrdinal > &CRS_colind, const Teuchos::ArrayView< Scalar > &CRS_vals, const UnderlyingLib lib)
Sort the entries of the (raw CSR) matrix by column index within each row.
Definition: Xpetra_CrsMatrixUtils.hpp:82
Teuchos::ArrayView::getRawPtr
T * getRawPtr() const
Xpetra_ConfigDefs.hpp
Xpetra::CrsMatrixUtils< double, int, long long, EpetraNode >::sortAndMergeCrsEntries
static void sortAndMergeCrsEntries(const Teuchos::ArrayView< size_t > &CRS_rowptr, const Teuchos::ArrayView< LocalOrdinal > &CRS_colind, const Teuchos::ArrayView< Scalar > &CRS_vals, const UnderlyingLib lib)
Sort and merge the entries of the (raw CSR) matrix by column index within each row.
Definition: Xpetra_CrsMatrixUtils.hpp:231
Xpetra_Map.hpp
Teuchos::toString
std::string toString(const T &t)
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