1 // Copyright (C) 2007-2023 CEA, EDF, OPEN CASCADE
3 // Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
6 // This library is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU Lesser General Public
8 // License as published by the Free Software Foundation; either
9 // version 2.1 of the License, or (at your option) any later version.
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 // Lesser General Public License for more details.
16 // You should have received a copy of the GNU Lesser General Public
17 // License along with this library; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
23 // File : SMESH_ParallelMesh.cxx
24 // Author : Yoann AUDOUIN, EDF
27 #include "SMESH_ParallelMesh.hxx"
29 #include "SMESH_Gen.hxx"
35 #include <boost/filesystem.hpp>
36 namespace fs=boost::filesystem;
39 #include <boost/asio.hpp>
42 #include <utilities.h>
44 SMESH_ParallelMesh::SMESH_ParallelMesh(int theLocalId,
46 bool theIsEmbeddedMode,
47 SMESHDS_Document* theDocument) :SMESH_Mesh(theLocalId,
52 MESSAGE("SMESH_ParallelMesh::SMESH_ParallelMesh(int localId)");
56 SMESH_ParallelMesh::~SMESH_ParallelMesh()
61 void SMESH_ParallelMesh::cleanup()
64 if(!keepingTmpFolfer())
66 MESSAGE("Set SMESH_KEEP_TMP to > 0 to keep temporary folders")
71 //=============================================================================
73 * \brief Checking if we should keep the temporary folder
74 * They are kept if the variable SMESH_KEEP_TMP is set to higher than 0
76 //=============================================================================
77 bool SMESH_ParallelMesh::keepingTmpFolfer()
79 const char* envVar = std::getenv("SMESH_KEEP_TMP");
81 if (envVar && (envVar[0] != '\0'))
85 const long long numValue = std::stoll(envVar);
88 catch(const std::exception& e)
90 std::cerr << e.what() << '\n';
98 //=============================================================================
100 * \brief Build folder for parallel computation
102 //=============================================================================
103 void SMESH_ParallelMesh::CreateTmpFolder()
105 // Temporary folder that will be used by parallel computation
106 tmp_folder = fs::temp_directory_path()/fs::unique_path(fs::path("SMESH_%%%%-%%%%"));
107 fs::create_directories(tmp_folder);
110 //=============================================================================
112 * \brief Delete temporary folder used for parallel computation
114 //=============================================================================
115 void SMESH_ParallelMesh::DeleteTmpFolder()
117 MESSAGE("Deleting temporary folder" << tmp_folder.string());
118 fs::remove_all(tmp_folder);
121 //=============================================================================
123 * \brief Get the number of Threads to be used for the pool of Threads
125 //=============================================================================
126 int SMESH_ParallelMesh::GetPoolNbThreads()
130 if(_method == ParallelismMethod::MultiThread){
131 nbThreads = _NbThreads;
132 }else if( _method == ParallelismMethod::MultiNode){
133 //TODO: Check of that is the right way
134 nbThreads = std::max(_nbProc, _nbNode*_nbProcPerNode);
136 throw SALOME_Exception("Unknown method "+std::to_string(_method));
142 //=============================================================================
144 * \brief Set Number of thread for multithread run
146 //=============================================================================
147 void SMESH_ParallelMesh::SetNbThreads(long nbThreads)
150 throw SALOME_Exception("Number of threads should be higher than 1");
151 _NbThreads=nbThreads;
154 //=============================================================================
156 * \brief Get the element associated to the dimension of the parallelism
158 //=============================================================================
159 int SMESH_ParallelMesh::GetParallelElement()
168 //=============================================================================
170 * \brief Get the element associated to the dimension of the parallelism
172 //=============================================================================
173 int SMESH_ParallelMesh::GetDumpElement()
182 bool SMESH_ParallelMesh::ComputeSubMeshes(
185 const TopoDS_Shape & aShape,
186 const ::MeshDimension aDim,
187 TSetOfInt* aShapesId /*=0*/,
188 TopTools_IndexedMapOfShape* allowedSubShapes,
189 SMESH_subMesh::compute_event &computeEvent,
190 const bool includeSelf,
191 const bool complexShapeFirst,
192 const bool aShapeOnly)
195 return gen->parallelComputeSubMeshes(
197 aShapesId, allowedSubShapes,