Tpetra parallel linear algebra  Version of the Day
Tpetra_Directory_decl.hpp
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41 
42 #ifndef TPETRA_DIRECTORY_DECL_HPP
43 #define TPETRA_DIRECTORY_DECL_HPP
44 
45 #include "Tpetra_ConfigDefs.hpp"
46 #include "Tpetra_Map_decl.hpp"
48 #include "Tpetra_TieBreak.hpp"
49 #include <Teuchos_Describable.hpp>
50 
51 namespace Tpetra {
52 
59 namespace Classes {
60 
131  template<class LocalOrdinal = ::Tpetra::Details::DefaultTypes::local_ordinal_type,
132  class GlobalOrdinal = ::Tpetra::Details::DefaultTypes::global_ordinal_type,
134  class Directory : public Teuchos::Describable {
135  public:
138 
140 
141 
146  Directory ();
147 
149  ~Directory ();
150 
152  void initialize (const map_type& map);
153 
155  void
156  initialize (const map_type& map,
158 
160  bool initialized () const;
161 
180  template <class Node2>
181  Teuchos::RCP<Directory<LocalOrdinal,GlobalOrdinal,Node2> >
183  {
184  using Teuchos::RCP;
185  typedef LocalOrdinal LO;
186  typedef GlobalOrdinal GO;
187 
188  RCP<Directory<LO, GO, Node2> > dir (new Directory<LO, GO, Node2> ());
189  if (clone_map.isDistributed ()) {
190  if (clone_map.isUniform ()) {
191  typedef ::Tpetra::Details::ContiguousUniformDirectory<LO, GO, Node> impl_type;
192  const impl_type* theImpl = dynamic_cast<const impl_type*> (impl_);
193  TEUCHOS_TEST_FOR_EXCEPTION(
194  theImpl == NULL, std::logic_error, "Tpetra::Directory::clone: "
195  "The input Map claims to be distributed, contiguous, and uniform, "
196  "but its Directory's implementation type does not match that assumption. "
197  "Please report this bug to the Tpetra developers.");
198  dir->impl_ = theImpl->template clone<Node2> (clone_map);
199  }
200  else if (clone_map.isContiguous ()) {
201  typedef ::Tpetra::Details::DistributedContiguousDirectory<LO, GO, Node> impl_type;
202  const impl_type* theImpl = dynamic_cast<const impl_type*> (impl_);
203  TEUCHOS_TEST_FOR_EXCEPTION(
204  theImpl == NULL, std::logic_error, "Tpetra::Directory::clone: "
205  "The input Map claims to be distributed and contiguous, but its "
206  "Directory's implementation type does not match that assumption. "
207  "Please report this bug to the Tpetra developers.");
208  dir->impl_ = theImpl->template clone<Node2> (clone_map);
209  }
210  else { // not contiguous
211  typedef ::Tpetra::Details::DistributedNoncontiguousDirectory<LO, GO, Node> impl_type;
212  const impl_type* theImpl = dynamic_cast<const impl_type*> (impl_);
213  TEUCHOS_TEST_FOR_EXCEPTION(
214  theImpl == NULL, std::logic_error, "Tpetra::Directory::clone: "
215  "The input Map claims to be noncontiguous, but its "
216  "Directory's implementation type does not match that assumption. "
217  "Please report this bug to the Tpetra developers.");
218  dir->impl_ = theImpl->template clone<Node2> (clone_map);
219  }
220  }
221  else { // locally replicated (not distributed)
222  typedef ::Tpetra::Details::ReplicatedDirectory<LO, GO, Node> impl_type;
223  const impl_type* theImpl = dynamic_cast<const impl_type*> (impl_);
224  TEUCHOS_TEST_FOR_EXCEPTION(
225  theImpl == NULL, std::logic_error, "Tpetra::Directory::clone: "
226  "The input Map claims to be locally replicated, but its "
227  "Directory's implementation type does not match that assumption. "
228  "Please report this bug to the Tpetra developers.");
229  dir->impl_ = theImpl->template clone<Node2> (clone_map);
230  }
231  return dir;
232  }
233 
235 
237 
239  std::string description () const;
240 
242 
244 
271  getDirectoryEntries (const map_type& map,
272  const Teuchos::ArrayView<const GlobalOrdinal>& globalIDs,
273  const Teuchos::ArrayView<int>& nodeIDs) const;
274 
311  getDirectoryEntries (const map_type& map,
312  const Teuchos::ArrayView<const GlobalOrdinal>& globalIDs,
313  const Teuchos::ArrayView<int>& nodeIDs,
314  const Teuchos::ArrayView<LocalOrdinal>& localIDs) const;
315 
322  bool isOneToOne (const map_type& map) const;
323 
325  private:
332  typedef ::Tpetra::Details::Directory<LocalOrdinal, GlobalOrdinal, Node> base_type;
333 
338  const base_type* impl_;
339 
342 
343  template <class LO, class GO, class N> friend class Directory;
344 
347  operator= (const Directory<LocalOrdinal, GlobalOrdinal, Node>& source);
348  }; // class Directory
349 
350 } // namespace Classes
351 
352 } // namespace Tpetra
353 
354 #endif // TPETRA_DIRECTORY_DECL_HPP
355 
Tpetra::Classes::Directory::getDirectoryEntries
LookupStatus getDirectoryEntries(const map_type &map, const Teuchos::ArrayView< const GlobalOrdinal > &globalIDs, const Teuchos::ArrayView< int > &nodeIDs) const
Given a global ID list, return the list of their owning process IDs.
Tpetra::Classes::Directory::~Directory
~Directory()
Destructor.
Definition: Tpetra_Directory_def.hpp:59
Tpetra::Classes::Directory::initialize
void initialize(const map_type &map)
Initialize the Directory with its Map.
Tpetra::Classes::Directory::Directory
Directory()
Default constructor: the only one you should use.
Definition: Tpetra_Directory_def.hpp:54
Tpetra::Classes::Map::isDistributed
bool isDistributed() const
Whether this Map is globally distributed or locally replicated.
Definition: Tpetra_Map_def.hpp:1535
Tpetra::Classes::Directory::description
std::string description() const
A one-line human-readable description of this object.
Definition: Tpetra_Directory_def.hpp:271
Tpetra::Details::DefaultTypes::node_type
::Kokkos::Compat::KokkosDeviceWrapperNode< execution_space > node_type
Default value of Node template parameter.
Definition: Tpetra_Details_DefaultTypes.hpp:105
Tpetra::Classes::Map::isUniform
bool isUniform() const
Whether the range of global indices is uniform.
Definition: Tpetra_Map_def.hpp:1152
Tpetra_TieBreak.hpp
Interface for breaking ties in ownership.
Tpetra::Classes::Directory::initialized
bool initialized() const
Whether the Directory is initialized.
Definition: Tpetra_Directory_def.hpp:68
Tpetra::Classes::Directory::map_type
Map< LocalOrdinal, GlobalOrdinal, Node > map_type
Type of the Map specialization to give to the constructor.
Definition: Tpetra_Directory_decl.hpp:137
Tpetra_Map_decl.hpp
Declaration of the Tpetra::Map class and related nonmember constructors.
Tpetra::LookupStatus
LookupStatus
Return status of Map remote index lookup (getRemoteIndexList()).
Definition: Tpetra_ConfigDefs.hpp:124
Tpetra::Details::DefaultTypes::local_ordinal_type
int local_ordinal_type
Default value of Scalar template parameter.
Definition: Tpetra_Details_DefaultTypes.hpp:72
Tpetra::Details::Classes::TieBreak
Interface for breaking ties in ownership.
Definition: Tpetra_TieBreak.hpp:69
Tpetra::Classes::Map
A parallel distribution of indices over processes.
Definition: Tpetra_Map_decl.hpp:247
Tpetra::Classes::Directory::clone
Teuchos::RCP< Directory< LocalOrdinal, GlobalOrdinal, Node2 > > clone(const Map< LocalOrdinal, GlobalOrdinal, Node2 > &clone_map) const
Clone the Directory for a different Node type, using a cloned Map.
Definition: Tpetra_Directory_decl.hpp:182
Tpetra_DirectoryImpl_decl.hpp
Declaration of implementation details of Tpetra::Directory.
Tpetra
Namespace Tpetra contains the class and methods constituting the Tpetra library.
Tpetra::Classes::Directory
Implement mapping from global ID to process ID and local ID.
Definition: Tpetra_Directory_decl.hpp:134
Tpetra::Classes::Map::isContiguous
bool isContiguous() const
True if this Map is distributed contiguously, else false.
Definition: Tpetra_Map_def.hpp:1157
Tpetra::Classes::Directory::isOneToOne
bool isOneToOne(const map_type &map) const
Whether the Directory's input Map is (globally) one to one.