MueLu  Version of the Day
MueLu_PatternFactory_def.hpp
Go to the documentation of this file.
1 // @HEADER
2 //
3 // ***********************************************************************
4 //
5 // MueLu: A package for multigrid based preconditioning
6 // Copyright 2012 Sandia Corporation
7 //
8 // Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
9 // the U.S. Government retains certain rights in this software.
10 //
11 // Redistribution and use in source and binary forms, with or without
12 // modification, are permitted provided that the following conditions are
13 // met:
14 //
15 // 1. Redistributions of source code must retain the above copyright
16 // notice, this list of conditions and the following disclaimer.
17 //
18 // 2. Redistributions in binary form must reproduce the above copyright
19 // notice, this list of conditions and the following disclaimer in the
20 // documentation and/or other materials provided with the distribution.
21 //
22 // 3. Neither the name of the Corporation nor the names of the
23 // contributors may be used to endorse or promote products derived from
24 // this software without specific prior written permission.
25 //
26 // THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
27 // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
30 // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
31 // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
32 // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
33 // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
34 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
35 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
36 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37 //
38 // Questions? Contact
39 // Jonathan Hu (jhu@sandia.gov)
40 // Andrey Prokopenko (aprokop@sandia.gov)
41 // Ray Tuminaro (rstumin@sandia.gov)
42 //
43 // ***********************************************************************
44 //
45 // @HEADER
46 #ifndef MUELU_PATTERNFACTORY_DEF_HPP
47 #define MUELU_PATTERNFACTORY_DEF_HPP
48 
49 #include <Xpetra_Matrix.hpp>
50 #include <Xpetra_MatrixMatrix.hpp>
51 
53 
54 #include "MueLu_MasterList.hpp"
55 #include "MueLu_Monitor.hpp"
56 //#include "MueLu_Utilities.hpp"
57 
58 namespace MueLu {
59 
60  template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
62  RCP<ParameterList> validParamList = rcp(new ParameterList());
63 
64 #define SET_VALID_ENTRY(name) validParamList->setEntry(name, MasterList::getEntry(name))
65  SET_VALID_ENTRY("emin: pattern order");
66 #undef SET_VALID_ENTRY
67 
68  validParamList->set< RCP<const FactoryBase> >("A", Teuchos::null, "Generating factory for the matrix");
69  validParamList->set< RCP<const FactoryBase> >("P", Teuchos::null, "Generating factory for the matrix providing nonzero graph");
70 
71  return validParamList;
72  }
73 
74  template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
76  Input(coarseLevel, "P");
77 
78  const ParameterList& pL = GetParameterList();
79  if (pL.get<int>("emin: pattern order") > 0)
80  Input(fineLevel, "A");
81  }
82 
83  template <class Scalar, class LocalOrdinal, class GlobalOrdinal, class Node>
85  FactoryMonitor m(*this, "Ppattern", coarseLevel);
86 
87  RCP<Matrix> P = Get< RCP<Matrix> >(coarseLevel, "P");
88 
89  const ParameterList& pL = GetParameterList();
90  int k = pL.get<int>("emin: pattern order");
91 
92  if (k > 0) {
93  RCP<Matrix> A = Get< RCP<Matrix> >(fineLevel, "A");
94  RCP<Matrix> AP;
95 
96  bool doFillComplete = true;
97  bool optimizeStorage = true;
98 
99  for (int i = 0; i < k; i++) {
100  AP = Xpetra::MatrixMatrix<Scalar, LocalOrdinal, GlobalOrdinal, Node>::Multiply(*A, false, *P, false, GetOStream(Statistics2), doFillComplete, optimizeStorage);
101  P.swap(AP);
102  }
103  }
104 
105  Set(coarseLevel, "Ppattern", P->getCrsGraph());
106  }
107 
108 
109 } // namespace MueLu
110 
111 #endif // MUELU_PATTERNFACTORY_DEF_HPP
#define SET_VALID_ENTRY(name)
RCP< const ParameterList > GetValidParameterList() const
Return a const parameter list of valid parameters that setParameterList() will accept.
Timer to be used in factories. Similar to Monitor but with additional timers.
Namespace for MueLu classes and methods.
void Build(Level &fineLevel, Level &coarseLevel) const
Build method.
Print even more statistics.
Class that holds all level-specific information.
Definition: MueLu_Level.hpp:99
void DeclareInput(Level &fineLevel, Level &coarseLevel) const
Input.