dune-istl  2.8.0
owneroverlapcopy.hh
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1 // -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
2 // vi: set et ts=4 sw=2 sts=2:
3 #ifndef DUNE_ISTL_OWNEROVERLAPCOPY_HH
4 #define DUNE_ISTL_OWNEROVERLAPCOPY_HH
5 
6 #include <new>
7 #include <iostream>
8 #include <vector>
9 #include <list>
10 #include <map>
11 #include <set>
12 #include <tuple>
13 
14 #include "cmath"
15 
16 // MPI header
17 #if HAVE_MPI
18 #include <mpi.h>
19 #endif
20 
21 #include <dune/common/enumset.hh>
22 
23 #if HAVE_MPI
24 #include <dune/common/parallel/indexset.hh>
25 #include <dune/common/parallel/communicator.hh>
26 #include <dune/common/parallel/remoteindices.hh>
27 #include <dune/common/parallel/mpicommunication.hh>
28 #endif
29 
30 #include "solvercategory.hh"
31 #include "istlexception.hh"
32 #include <dune/common/parallel/communication.hh>
34 
35 template<int dim, template<class,class> class Comm>
36 void testRedistributed(int s);
37 
38 
39 namespace Dune {
40 
57  {
58  enum AttributeSet {
59  owner=1, overlap=2, copy=3
60  };
61  };
62 
74  template <class G, class L>
76  {
77  public:
79  typedef G GlobalIdType;
80 
82  typedef L LocalIdType;
83 
90  typedef std::tuple<GlobalIdType,LocalIdType,int> IndexTripel;
97  typedef std::tuple<int,GlobalIdType,int> RemoteIndexTripel;
98 
104  void addLocalIndex (const IndexTripel& x)
105  {
106  if (std::get<2>(x)!=OwnerOverlapCopyAttributeSet::owner &&
107  std::get<2>(x)!=OwnerOverlapCopyAttributeSet::overlap &&
108  std::get<2>(x)!=OwnerOverlapCopyAttributeSet::copy)
109  DUNE_THROW(ISTLError,"OwnerOverlapCopyCommunication: global index not in index set");
110  localindices.insert(x);
111  }
112 
119  {
120  if (std::get<2>(x)!=OwnerOverlapCopyAttributeSet::owner &&
121  std::get<2>(x)!=OwnerOverlapCopyAttributeSet::overlap &&
122  std::get<2>(x)!=OwnerOverlapCopyAttributeSet::copy)
123  DUNE_THROW(ISTLError,"OwnerOverlapCopyCommunication: global index not in index set");
124  remoteindices.insert(x);
125  }
126 
131  const std::set<IndexTripel>& localIndices () const
132  {
133  return localindices;
134  }
135 
140  const std::set<RemoteIndexTripel>& remoteIndices () const
141  {
142  return remoteindices;
143  }
144 
148  void clear ()
149  {
150  localindices.clear();
151  remoteindices.clear();
152  }
153 
154  private:
156  std::set<IndexTripel> localindices;
158  std::set<RemoteIndexTripel> remoteindices;
159  };
160 
161 
162 #if HAVE_MPI
163 
170  template <class GlobalIdType, class LocalIdType=int>
172  {
173  template<typename M, typename G, typename L>
174  friend void loadMatrixMarket(M&,
175  const std::string&,
177  bool);
178  // used types
180  typedef typename IndexInfoFromGrid<GlobalIdType,LocalIdType>::RemoteIndexTripel RemoteIndexTripel;
181  typedef typename std::set<IndexTripel>::const_iterator localindex_iterator;
182  typedef typename std::set<RemoteIndexTripel>::const_iterator remoteindex_iterator;
184  typedef Dune::ParallelLocalIndex<AttributeSet> LI;
185  public:
186  typedef Dune::ParallelIndexSet<GlobalIdType,LI,512> PIS;
187  typedef Dune::RemoteIndices<PIS> RI;
188  typedef Dune::RemoteIndexListModifier<PIS,typename RI::Allocator,false> RILM;
189  typedef typename RI::RemoteIndex RX;
190  typedef Dune::BufferedCommunicator BC;
191  typedef Dune::Interface IF;
192  typedef EnumItem<AttributeSet,OwnerOverlapCopyAttributeSet::owner> OwnerSet;
193  typedef EnumItem<AttributeSet,OwnerOverlapCopyAttributeSet::copy> CopySet;
194  typedef Combine<EnumItem<AttributeSet,OwnerOverlapCopyAttributeSet::owner>,EnumItem<AttributeSet,OwnerOverlapCopyAttributeSet::overlap>,AttributeSet> OwnerOverlapSet;
195  typedef Dune::AllSet<AttributeSet> AllSet;
196  protected:
197 
198 
200  template<typename T>
202  {
203  typedef typename CommPolicy<T>::IndexedType V;
204 
205  static V gather(const T& a, std::size_t i)
206  {
207  return a[i];
208  }
209 
210  static void scatter(T& a, V v, std::size_t i)
211  {
212  a[i] = v;
213  }
214  };
215  template<typename T>
217  {
218  typedef typename CommPolicy<T>::IndexedType V;
219 
220  static V gather(const T& a, std::size_t i)
221  {
222  return a[i];
223  }
224 
225  static void scatter(T& a, V v, std::size_t i)
226  {
227  a[i] += v;
228  }
229  };
230 
232  {
233  if (OwnerOverlapToAllInterfaceBuilt)
234  OwnerOverlapToAllInterface.free();
235  OwnerOverlapSet sourceFlags;
236  Combine<OwnerOverlapSet,EnumItem<AttributeSet,OwnerOverlapCopyAttributeSet::copy>,AttributeSet>
237  destFlags;
238  OwnerOverlapToAllInterface.build(ri,sourceFlags,destFlags);
239  OwnerOverlapToAllInterfaceBuilt = true;
240  }
241 
243  {
244  if (OwnerToAllInterfaceBuilt)
245  OwnerToAllInterface.free();
246  OwnerSet sourceFlags;
247  AllSet destFlags;
248  OwnerToAllInterface.build(ri,sourceFlags,destFlags);
249  OwnerToAllInterfaceBuilt = true;
250  }
251 
253  {
254  if (OwnerCopyToAllInterfaceBuilt)
255  OwnerCopyToAllInterface.free();
256 
257  typedef Combine<EnumItem<AttributeSet,OwnerOverlapCopyAttributeSet::owner>,EnumItem<AttributeSet,OwnerOverlapCopyAttributeSet::copy>,AttributeSet> OwnerCopySet;
258  OwnerCopySet sourceFlags;
259  Combine<OwnerCopySet,EnumItem<AttributeSet,OwnerOverlapCopyAttributeSet::overlap>,AttributeSet> destFlags;
260  OwnerCopyToAllInterface.build(ri,sourceFlags,destFlags);
261  OwnerCopyToAllInterfaceBuilt = true;
262  }
263 
265  {
266  if (OwnerCopyToOwnerCopyInterfaceBuilt)
267  OwnerCopyToOwnerCopyInterface.free();
268 
269 
270  typedef Combine<EnumItem<AttributeSet,OwnerOverlapCopyAttributeSet::owner>,EnumItem<AttributeSet,OwnerOverlapCopyAttributeSet::copy>,AttributeSet> OwnerCopySet;
271  OwnerCopySet sourceFlags;
272  OwnerCopySet destFlags;
273  OwnerCopyToOwnerCopyInterface.build(ri,sourceFlags,destFlags);
274  OwnerCopyToOwnerCopyInterfaceBuilt = true;
275  }
276 
278  {
279  if (CopyToAllInterfaceBuilt)
280  CopyToAllInterface.free();
281  CopySet sourceFlags;
282  AllSet destFlags;
283  CopyToAllInterface.build(ri,sourceFlags,destFlags);
284  CopyToAllInterfaceBuilt = true;
285  }
286 
287  public:
288 
294  return category_;
295  }
296 
297  const CollectiveCommunication<MPI_Comm>& communicator() const
298  {
299  return cc;
300  }
301 
308  template<class T>
309  void copyOwnerToAll (const T& source, T& dest) const
310  {
311  if (!OwnerToAllInterfaceBuilt)
314  communicator.template build<T>(OwnerToAllInterface);
315  communicator.template forward<CopyGatherScatter<T> >(source,dest);
316  communicator.free();
317  }
318 
325  template<class T>
326  void copyCopyToAll (const T& source, T& dest) const
327  {
328  if (!CopyToAllInterfaceBuilt)
331  communicator.template build<T>(CopyToAllInterface);
332  communicator.template forward<CopyGatherScatter<T> >(source,dest);
333  communicator.free();
334  }
335 
342  template<class T>
343  void addOwnerOverlapToAll (const T& source, T& dest) const
344  {
345  if (!OwnerOverlapToAllInterfaceBuilt)
348  communicator.template build<T>(OwnerOverlapToAllInterface);
349  communicator.template forward<AddGatherScatter<T> >(source,dest);
350  communicator.free();
351  }
352 
359  template<class T>
360  void addOwnerCopyToAll (const T& source, T& dest) const
361  {
362  if (!OwnerCopyToAllInterfaceBuilt)
365  communicator.template build<T>(OwnerCopyToAllInterface);
366  communicator.template forward<AddGatherScatter<T> >(source,dest);
367  communicator.free();
368  }
369 
376  template<class T>
377  void addOwnerCopyToOwnerCopy (const T& source, T& dest) const
378  {
379  if (!OwnerCopyToOwnerCopyInterfaceBuilt)
382  communicator.template build<T>(OwnerCopyToOwnerCopyInterface);
383  communicator.template forward<AddGatherScatter<T> >(source,dest);
384  communicator.free();
385  }
386 
387 
395  template<class T1, class T2>
396  void dot (const T1& x, const T1& y, T2& result) const
397  {
398  using real_type = typename FieldTraits<typename T1::field_type>::real_type;
399  // set up mask vector
400  if (mask.size()!=static_cast<typename std::vector<double>::size_type>(x.size()))
401  {
402  mask.resize(x.size());
403  for (typename std::vector<double>::size_type i=0; i<mask.size(); i++)
404  mask[i] = 1;
405  for (typename PIS::const_iterator i=pis.begin(); i!=pis.end(); ++i)
406  if (i->local().attribute()!=OwnerOverlapCopyAttributeSet::owner)
407  mask[i->local().local()] = 0;
408  }
409  result = T2(0.0);
410 
411  for (typename T1::size_type i=0; i<x.size(); i++)
412  result += (x[i]*(y[i]))*static_cast<real_type>(mask[i]);
413  result = cc.sum(result);
414  }
415 
422  template<class T1>
423  typename FieldTraits<typename T1::field_type>::real_type norm (const T1& x) const
424  {
425  using real_type = typename FieldTraits<typename T1::field_type>::real_type;
426 
427  // set up mask vector
428  if (mask.size()!=static_cast<typename std::vector<double>::size_type>(x.size()))
429  {
430  mask.resize(x.size());
431  for (typename std::vector<double>::size_type i=0; i<mask.size(); i++)
432  mask[i] = 1;
433  for (typename PIS::const_iterator i=pis.begin(); i!=pis.end(); ++i)
434  if (i->local().attribute()!=OwnerOverlapCopyAttributeSet::owner)
435  mask[i->local().local()] = 0;
436  }
437  auto result = real_type(0.0);
438  for (typename T1::size_type i=0; i<x.size(); i++)
439  result += Impl::asVector(x[i]).two_norm2()*mask[i];
440  using std::sqrt;
441  return sqrt(cc.sum(result));
442  }
443 
444  typedef Dune::EnumItem<AttributeSet,OwnerOverlapCopyAttributeSet::copy> CopyFlags;
445 
447  typedef Dune::ParallelIndexSet<GlobalIdType,LI,512> ParallelIndexSet;
448 
450  typedef Dune::RemoteIndices<PIS> RemoteIndices;
451 
454  typedef Dune::GlobalLookupIndexSet<ParallelIndexSet> GlobalLookupIndexSet;
455 
460  const ParallelIndexSet& indexSet() const
461  {
462  return pis;
463  }
464 
470  {
471  return ri;
472  }
473 
479  {
480  return pis;
481  }
482 
483 
489  {
490  return ri;
491  }
492 
494  {
495  if(globalLookup_) {
496  if(pis.seqNo()==oldseqNo)
497  // Nothing changed!
498  return;
499  delete globalLookup_;
500  }
501 
502  globalLookup_ = new GlobalLookupIndexSet(pis);
503  oldseqNo = pis.seqNo();
504  }
505 
506  void buildGlobalLookup(std::size_t size)
507  {
508  if(globalLookup_) {
509  if(pis.seqNo()==oldseqNo)
510  // Nothing changed!
511  return;
512  delete globalLookup_;
513  }
514  globalLookup_ = new GlobalLookupIndexSet(pis, size);
515  oldseqNo = pis.seqNo();
516  }
517 
519  {
520  delete globalLookup_;
521  globalLookup_=0;
522  }
523 
525  {
526  assert(globalLookup_ != 0);
527  return *globalLookup_;
528  }
529 
535  template<class T1>
536  void project (T1& x) const
537  {
538  for (typename PIS::const_iterator i=pis.begin(); i!=pis.end(); ++i)
539  if (i->local().attribute()==OwnerOverlapCopyAttributeSet::copy)
540  x[i->local().local()] = 0;
541  }
542 
554  bool freecomm_ = false)
555  : comm(comm_), cc(comm_), pis(), ri(pis,pis,comm_),
556  OwnerToAllInterfaceBuilt(false), OwnerOverlapToAllInterfaceBuilt(false),
557  OwnerCopyToAllInterfaceBuilt(false), OwnerCopyToOwnerCopyInterfaceBuilt(false),
558  CopyToAllInterfaceBuilt(false), globalLookup_(0), category_(cat_),
559  freecomm(freecomm_)
560  {}
561 
571  : comm(MPI_COMM_WORLD), cc(MPI_COMM_WORLD), pis(), ri(pis,pis,MPI_COMM_WORLD),
572  OwnerToAllInterfaceBuilt(false), OwnerOverlapToAllInterfaceBuilt(false),
573  OwnerCopyToAllInterfaceBuilt(false), OwnerCopyToOwnerCopyInterfaceBuilt(false),
574  CopyToAllInterfaceBuilt(false), globalLookup_(0), category_(cat_), freecomm(false)
575  {}
576 
585  MPI_Comm comm_,
587  bool freecomm_ = false)
588  : comm(comm_), cc(comm_), OwnerToAllInterfaceBuilt(false),
589  OwnerOverlapToAllInterfaceBuilt(false), OwnerCopyToAllInterfaceBuilt(false),
590  OwnerCopyToOwnerCopyInterfaceBuilt(false), CopyToAllInterfaceBuilt(false),
591  globalLookup_(0), category_(cat_), freecomm(freecomm_)
592  {
593  // set up an ISTL index set
594  pis.beginResize();
595  for (localindex_iterator i=indexinfo.localIndices().begin(); i!=indexinfo.localIndices().end(); ++i)
596  {
597  if (std::get<2>(*i)==OwnerOverlapCopyAttributeSet::owner)
598  pis.add(std::get<0>(*i),LI(std::get<1>(*i),OwnerOverlapCopyAttributeSet::owner,true));
599  if (std::get<2>(*i)==OwnerOverlapCopyAttributeSet::overlap)
600  pis.add(std::get<0>(*i),LI(std::get<1>(*i),OwnerOverlapCopyAttributeSet::overlap,true));
601  if (std::get<2>(*i)==OwnerOverlapCopyAttributeSet::copy)
602  pis.add(std::get<0>(*i),LI(std::get<1>(*i),OwnerOverlapCopyAttributeSet::copy,true));
603  // std::cout << cc.rank() << ": adding index " << std::get<0>(*i) << " " << std::get<1>(*i) << " " << std::get<2>(*i) << std::endl;
604  }
605  pis.endResize();
606 
607  // build remote indices WITHOUT communication
608  // std::cout << cc.rank() << ": build remote indices" << std::endl;
609  ri.setIndexSets(pis,pis,cc);
610  if (indexinfo.remoteIndices().size()>0)
611  {
612  remoteindex_iterator i=indexinfo.remoteIndices().begin();
613  int p = std::get<0>(*i);
614  RILM modifier = ri.template getModifier<false,true>(p);
615  typename PIS::const_iterator pi=pis.begin();
616  for ( ; i!=indexinfo.remoteIndices().end(); ++i)
617  {
618  // handle processor change
619  if (p!=std::get<0>(*i))
620  {
621  p = std::get<0>(*i);
622  modifier = ri.template getModifier<false,true>(p);
623  pi=pis.begin();
624  }
625 
626  // position to correct entry in parallel index set
627  while (pi->global()!=std::get<1>(*i) && pi!=pis.end())
628  ++pi;
629  if (pi==pis.end())
630  DUNE_THROW(ISTLError,"OwnerOverlapCopyCommunication: global index not in index set");
631 
632  // insert entry
633  // std::cout << cc.rank() << ": adding remote index " << std::get<0>(*i) << " " << std::get<1>(*i) << " " << std::get<2>(*i) << std::endl;
634  if (std::get<2>(*i)==OwnerOverlapCopyAttributeSet::owner)
635  modifier.insert(RX(OwnerOverlapCopyAttributeSet::owner,&(*pi)));
636  if (std::get<2>(*i)==OwnerOverlapCopyAttributeSet::overlap)
637  modifier.insert(RX(OwnerOverlapCopyAttributeSet::overlap,&(*pi)));
638  if (std::get<2>(*i)==OwnerOverlapCopyAttributeSet::copy)
639  modifier.insert(RX(OwnerOverlapCopyAttributeSet::copy,&(*pi)));
640  }
641  }else{
642  // Force remote indices to be synced!
643  ri.template getModifier<false,true>(0);
644  }
645  }
646 
647  // destructor: free memory in some objects
649  {
650  ri.free();
651  if (OwnerToAllInterfaceBuilt) OwnerToAllInterface.free();
652  if (OwnerOverlapToAllInterfaceBuilt) OwnerOverlapToAllInterface.free();
653  if (OwnerCopyToAllInterfaceBuilt) OwnerCopyToAllInterface.free();
654  if (OwnerCopyToOwnerCopyInterfaceBuilt) OwnerCopyToOwnerCopyInterface.free();
655  if (CopyToAllInterfaceBuilt) CopyToAllInterface.free();
656  if (globalLookup_) delete globalLookup_;
657  if (freecomm==true)
658  if(comm!=MPI_COMM_NULL)
659  {
660 #ifdef MPI_2
661  // If it is possible to query whether MPI_Finalize
662  // was called, only free the communicator before
663  // calling MPI_Finalize.
664  int wasFinalized = 0;
665  MPI_Finalized( &wasFinalized );
666  if(!wasFinalized)
667 #endif
668  MPI_Comm_free(&comm);
669  }
670  }
671 
672  private:
674  {}
675  MPI_Comm comm;
676  CollectiveCommunication<MPI_Comm> cc;
677  PIS pis;
678  RI ri;
679  mutable IF OwnerToAllInterface;
680  mutable bool OwnerToAllInterfaceBuilt;
681  mutable IF OwnerOverlapToAllInterface;
682  mutable bool OwnerOverlapToAllInterfaceBuilt;
683  mutable IF OwnerCopyToAllInterface;
684  mutable bool OwnerCopyToAllInterfaceBuilt;
685  mutable IF OwnerCopyToOwnerCopyInterface;
686  mutable bool OwnerCopyToOwnerCopyInterfaceBuilt;
687  mutable IF CopyToAllInterface;
688  mutable bool CopyToAllInterfaceBuilt;
689  mutable std::vector<double> mask;
690  int oldseqNo;
691  GlobalLookupIndexSet* globalLookup_;
692  const SolverCategory::Category category_;
693  bool freecomm;
694  };
695 
696 #endif
697 
698 
701 } // end namespace
702 
703 #endif
Provides classes for reading and writing MatrixMarket Files with an extension for parallel matrices.
void testRedistributed(int s)
Definition: allocator.hh:9
derive error class from the base class in common
Definition: istlexception.hh:17
Attribute set for overlapping Schwarz.
Definition: owneroverlapcopy.hh:57
AttributeSet
Definition: owneroverlapcopy.hh:58
@ owner
Definition: owneroverlapcopy.hh:59
@ copy
Definition: owneroverlapcopy.hh:59
@ overlap
Definition: owneroverlapcopy.hh:59
Information about the index distribution.
Definition: owneroverlapcopy.hh:76
std::tuple< GlobalIdType, LocalIdType, int > IndexTripel
A triple describing a local index.
Definition: owneroverlapcopy.hh:90
void addRemoteIndex(const RemoteIndexTripel &x)
Add a new remote index triple to the set of remote indices.
Definition: owneroverlapcopy.hh:118
G GlobalIdType
The type of the global index.
Definition: owneroverlapcopy.hh:79
L LocalIdType
The type of the local index.
Definition: owneroverlapcopy.hh:82
const std::set< IndexTripel > & localIndices() const
Get the set of indices local to the process.
Definition: owneroverlapcopy.hh:131
void clear()
Remove all indices from the sets.
Definition: owneroverlapcopy.hh:148
void addLocalIndex(const IndexTripel &x)
Add a new index triple to the set of local indices.
Definition: owneroverlapcopy.hh:104
const std::set< RemoteIndexTripel > & remoteIndices() const
Get the set of remote indices.
Definition: owneroverlapcopy.hh:140
std::tuple< int, GlobalIdType, int > RemoteIndexTripel
A triple describing a remote index.
Definition: owneroverlapcopy.hh:97
A class setting up standard communication for a two-valued attribute set with owner/overlap/copy sema...
Definition: owneroverlapcopy.hh:172
EnumItem< AttributeSet, OwnerOverlapCopyAttributeSet::copy > CopySet
Definition: owneroverlapcopy.hh:193
const CollectiveCommunication< MPI_Comm > & communicator() const
Definition: owneroverlapcopy.hh:297
const ParallelIndexSet & indexSet() const
Get the underlying parallel index set.
Definition: owneroverlapcopy.hh:460
void buildOwnerOverlapToAllInterface() const
Definition: owneroverlapcopy.hh:231
RemoteIndices & remoteIndices()
Get the underlying remote indices.
Definition: owneroverlapcopy.hh:488
Dune::ParallelIndexSet< GlobalIdType, LI, 512 > PIS
Definition: owneroverlapcopy.hh:186
void buildOwnerCopyToAllInterface() const
Definition: owneroverlapcopy.hh:252
ParallelIndexSet & indexSet()
Get the underlying parallel index set.
Definition: owneroverlapcopy.hh:478
void buildOwnerCopyToOwnerCopyInterface() const
Definition: owneroverlapcopy.hh:264
OwnerOverlapCopyCommunication(const IndexInfoFromGrid< GlobalIdType, LocalIdType > &indexinfo, MPI_Comm comm_, SolverCategory::Category cat_=SolverCategory::overlapping, bool freecomm_=false)
Constructor.
Definition: owneroverlapcopy.hh:584
SolverCategory::Category category() const
Get Solver Category.
Definition: owneroverlapcopy.hh:293
void addOwnerCopyToOwnerCopy(const T &source, T &dest) const
Communicate values from owner and copy data points to owner and copy data points and add them to thos...
Definition: owneroverlapcopy.hh:377
void buildCopyToAllInterface() const
Definition: owneroverlapcopy.hh:277
FieldTraits< typename T1::field_type >::real_type norm(const T1 &x) const
Compute the global Euclidean norm of a vector.
Definition: owneroverlapcopy.hh:423
Dune::EnumItem< AttributeSet, OwnerOverlapCopyAttributeSet::copy > CopyFlags
Definition: owneroverlapcopy.hh:444
Dune::RemoteIndices< PIS > RI
Definition: owneroverlapcopy.hh:187
void buildGlobalLookup(std::size_t size)
Definition: owneroverlapcopy.hh:506
void addOwnerOverlapToAll(const T &source, T &dest) const
Communicate values from owner data points to all other data points and add them to those values.
Definition: owneroverlapcopy.hh:343
Dune::RemoteIndices< PIS > RemoteIndices
The type of the remote indices.
Definition: owneroverlapcopy.hh:450
void project(T1 &x) const
Set vector to zero at copy dofs.
Definition: owneroverlapcopy.hh:536
Dune::AllSet< AttributeSet > AllSet
Definition: owneroverlapcopy.hh:195
Combine< EnumItem< AttributeSet, OwnerOverlapCopyAttributeSet::owner >, EnumItem< AttributeSet, OwnerOverlapCopyAttributeSet::overlap >, AttributeSet > OwnerOverlapSet
Definition: owneroverlapcopy.hh:194
void copyCopyToAll(const T &source, T &dest) const
Communicate values from copy data points to all other data points.
Definition: owneroverlapcopy.hh:326
Dune::GlobalLookupIndexSet< ParallelIndexSet > GlobalLookupIndexSet
The type of the reverse lookup of indices.
Definition: owneroverlapcopy.hh:454
Dune::Interface IF
Definition: owneroverlapcopy.hh:191
~OwnerOverlapCopyCommunication()
Definition: owneroverlapcopy.hh:648
void buildGlobalLookup()
Definition: owneroverlapcopy.hh:493
Dune::BufferedCommunicator BC
Definition: owneroverlapcopy.hh:190
OwnerOverlapCopyCommunication(MPI_Comm comm_, SolverCategory::Category cat_=SolverCategory::overlapping, bool freecomm_=false)
Construct the communication without any indices.
Definition: owneroverlapcopy.hh:552
void dot(const T1 &x, const T1 &y, T2 &result) const
Compute a global dot product of two vectors.
Definition: owneroverlapcopy.hh:396
OwnerOverlapCopyCommunication(SolverCategory::Category cat_=SolverCategory::overlapping)
Construct the communication without any indices using MPI_COMM_WORLD.
Definition: owneroverlapcopy.hh:570
EnumItem< AttributeSet, OwnerOverlapCopyAttributeSet::owner > OwnerSet
Definition: owneroverlapcopy.hh:192
const RemoteIndices & remoteIndices() const
Get the underlying remote indices.
Definition: owneroverlapcopy.hh:469
void copyOwnerToAll(const T &source, T &dest) const
Communicate values from owner data points to all other data points.
Definition: owneroverlapcopy.hh:309
friend void loadMatrixMarket(M &, const std::string &, OwnerOverlapCopyCommunication< G, L > &, bool)
Load a parallel matrix/vector stored in matrix market format.
Definition: matrixmarket.hh:1222
RI::RemoteIndex RX
Definition: owneroverlapcopy.hh:189
void addOwnerCopyToAll(const T &source, T &dest) const
Communicate values from owner and copy data points to all other data points and add them to those val...
Definition: owneroverlapcopy.hh:360
void freeGlobalLookup()
Definition: owneroverlapcopy.hh:518
Dune::RemoteIndexListModifier< PIS, typename RI::Allocator, false > RILM
Definition: owneroverlapcopy.hh:188
Dune::ParallelIndexSet< GlobalIdType, LI, 512 > ParallelIndexSet
The type of the parallel index set.
Definition: owneroverlapcopy.hh:447
void buildOwnerToAllInterface() const
Definition: owneroverlapcopy.hh:242
const GlobalLookupIndexSet & globalLookup() const
Definition: owneroverlapcopy.hh:524
gather/scatter callback for communcation
Definition: owneroverlapcopy.hh:202
static V gather(const T &a, std::size_t i)
Definition: owneroverlapcopy.hh:205
static void scatter(T &a, V v, std::size_t i)
Definition: owneroverlapcopy.hh:210
CommPolicy< T >::IndexedType V
Definition: owneroverlapcopy.hh:203
CommPolicy< T >::IndexedType V
Definition: owneroverlapcopy.hh:218
static V gather(const T &a, std::size_t i)
Definition: owneroverlapcopy.hh:220
static void scatter(T &a, V v, std::size_t i)
Definition: owneroverlapcopy.hh:225
Category
Definition: solvercategory.hh:21
@ overlapping
Category for overlapping solvers.
Definition: solvercategory.hh:27