MueLu Version of the Day
Loading...
Searching...
No Matches
MueLu_TwoLevelFactoryBase.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_TWOLEVELFACTORY_HPP
47#define MUELU_TWOLEVELFACTORY_HPP
48
49#include "MueLu_ConfigDefs.hpp"
50
51#include "MueLu_Factory.hpp"
52#include "MueLu_Level.hpp"
53#include "MueLu_TimeMonitor.hpp"
54#include "MueLu_Utilities.hpp"
55
56namespace MueLu {
57
68
69 public:
70
72
73
76
79 { }
80
82
84
85
91 virtual void DeclareInput(Level &fineLevel, Level &coarseLevel) const = 0;
92
94 virtual void CallDeclareInput(Level & requestedLevel) const {
95 if (requestedLevel.GetPreviousLevel() == Teuchos::null) {
96 std::ostringstream errStr;
97 errStr << "LevelID = " << requestedLevel.GetLevelID();
98 throw Exceptions::DependencyError(errStr.str());
99 }
100 DeclareInput(*requestedLevel.GetPreviousLevel(), requestedLevel);
101 }
102
104
106
107
108
110 virtual void Build(Level & fineLevel, Level & coarseLevel) const = 0;
111
113 virtual void CallBuild(Level& requestedLevel) const {
114 int levelID = requestedLevel.GetLevelID();
115
116#ifdef HAVE_MUELU_DEBUG
117 // We cannot call Build method twice for the same level, but we can call it multiple times for different levels
118 TEUCHOS_TEST_FOR_EXCEPTION((multipleCallCheck_ == ENABLED) && (multipleCallCheckGlobal_ == ENABLED) && (lastLevelID_ == levelID),
120 this->ShortClassName() << "::Build() called twice for the same level (levelID=" << levelID
121 << "). This is likely due to a configuration error, or calling hierarchy setup multiple times "
122 << "without resetting debug info through FactoryManager::ResetDebugData().");
123 if (multipleCallCheck_ == FIRSTCALL)
124 multipleCallCheck_ = ENABLED;
125
126 lastLevelID_ = levelID;
127#endif
128 TEUCHOS_TEST_FOR_EXCEPTION(requestedLevel.GetPreviousLevel() == Teuchos::null, Exceptions::RuntimeError, "LevelID = " << levelID);
129
130 RCP<const Teuchos::Comm<int> > comm = requestedLevel.GetComm();
131 if (comm.is_null()) {
132 // Some factories are called before we constructed Ac, and therefore,
133 // before we set the level communicator. For such factories we can get
134 // the comm from the previous level, as all processes go there
135 RCP<Level>& prevLevel = requestedLevel.GetPreviousLevel();
136 if (!prevLevel.is_null())
137 comm = prevLevel->GetComm();
138 }
139
140 int oldRank = -1;
141 if (!comm.is_null())
142 oldRank = SetProcRankVerbose(comm->getRank());
143
144 // Synchronization timer
145 std::string syncTimer = this->ShortClassName() + ": Build sync (level=" + toString(requestedLevel.GetLevelID()) + ")";
146 if (this->timerSync_ && !comm.is_null()) {
147 TimeMonitor timer(*this, syncTimer);
148 comm->barrier();
149 }
150
151 Build(*requestedLevel.GetPreviousLevel(), requestedLevel);
152
153 if (this->timerSync_ && !comm.is_null()) {
154 TimeMonitor timer(*this, syncTimer);
155 comm->barrier();
156 }
157
158 if (IsPrint(Test1))
160 else
161 RemoveFactoriesFromList(GetParameterList())->print(GetOStream(Test0), Teuchos::ParameterList::PrintOptions().indent(0).showFlags(true).showDefault(false));
162
163 if (oldRank != -1)
164 SetProcRankVerbose(oldRank);
165 }
166
168
169 }; //class TwoLevelFactoryBase
170
171
172} //namespace MueLu
173
174#define MUELU_TWOLEVELFACTORY_SHORT
175#endif //ifndef MUELU_TWOLEVELFACTORY_HPP
virtual std::string ShortClassName() const
Return the class name of the object, without template parameters and without namespace.
Exception throws to report data dependency problems between factories.
Exception throws to report errors in the internal logical of the program.
static bool timerSync_
RCP< ParameterList > RemoveFactoriesFromList(const ParameterList &list) const
Class that holds all level-specific information.
Definition: MueLu_Level.hpp:99
RCP< Level > & GetPreviousLevel()
Previous level.
RCP< const Teuchos::Comm< int > > GetComm() const
int GetLevelID() const
Return level number.
Definition: MueLu_Level.cpp:76
virtual const Teuchos::ParameterList & GetParameterList() const
Integrates Teuchos::TimeMonitor with MueLu verbosity system.
Base class for factories that use two levels (fineLevel and coarseLevel).
virtual void CallDeclareInput(Level &requestedLevel) const
virtual void Build(Level &fineLevel, Level &coarseLevel) const =0
Build an object with this factory.
virtual void CallBuild(Level &requestedLevel) const
virtual void DeclareInput(Level &fineLevel, Level &coarseLevel) const =0
Input.
Teuchos::FancyOStream & GetOStream(MsgType type, int thisProcRankOnly=0) const
Get an output stream for outputting the input message type.
int SetProcRankVerbose(int procRank) const
Set proc rank used for printing.
bool IsPrint(MsgType type, int thisProcRankOnly=-1) const
Find out whether we need to print out information for a specific message type.
Namespace for MueLu classes and methods.
@ Test0
Print factory calls.
@ Test1
Print used parameters.
std::string toString(const T &what)
Little helper function to convert non-string types to strings.