1 // Copyright (C) 2007-2014 CEA/DEN, EDF R&D, 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 // SALOME MPIContainer : implemenation of container based on MPI libraries
24 // File : MPIObject_i.cxx
27 #include "MPIObject_i.hxx"
28 #include "utilities.h"
29 #include "Utils_SALOME_Exception.hxx"
37 MPIObject_i::MPIObject_i()
39 MPI_Comm_size( MPI_COMM_WORLD, &_nbproc );
40 MPI_Comm_rank( MPI_COMM_WORLD, &_numproc );
44 MPIObject_i::~MPIObject_i()
46 if(_tior) delete _tior;
49 Engines::IORTab* MPIObject_i::tior()
51 Engines::IORTab_var tior = new Engines::IORTab;
52 tior->length(_tior->length());
53 for(unsigned int ip=0;ip<tior->length();ip++)
54 tior[ip] = (*_tior)[ip];
58 void MPIObject_i::tior(const Engines::IORTab& ior)
60 _tior = new Engines::IORTab;
61 _tior->length(ior.length());
62 for(unsigned int ip=0;ip<ior.length();ip++)
63 (*_tior)[ip] = ior[ip];
66 void MPIObject_i::BCastIOR(CORBA::ORB_ptr orb, Engines::MPIObject_ptr pobj, bool amiCont)
70 MPI_Status status; /* status de reception de message MPI */
71 std::ostringstream msg;
76 //Allocation du tableau des IOR
77 Engines::IORTab_var iort = new Engines::IORTab;
78 iort->length(_nbproc);
82 // Process 0 recupere les ior de l'object sur les autres process
83 for(ip=1;ip<_nbproc;ip++)
85 err = MPI_Recv(&n,1,MPI_INT,ip,ip,MPI_COMM_WORLD,&status);
88 msg << "[" << _numproc << "] MPI_RECV error";
89 throw SALOME_Exception(msg.str().c_str());
91 // Allocation de la chaine de longueur n
93 err = MPI_Recv(ior,n,MPI_CHAR,ip,2*ip,MPI_COMM_WORLD,&status);
96 msg << "[" << _numproc << "] MPI_RECV error";
97 throw SALOME_Exception(msg.str().c_str());
99 iort[ip] = orb->string_to_object(ior);
101 if(CORBA::is_nil(iort[ip]))
103 msg << "[" << ip << "] MPI Component not loaded";
104 throw SALOME_Exception(msg.str().c_str());
107 // On donne le tableau des ior a l'objet Corba du process 0
109 tior(*(iort._retn()));
111 pobj->tior(*(iort._retn()));
115 // Conversion IOR vers string
116 ior = orb->object_to_string(pobj);
118 // On envoie l'IOR au process 0
119 err = MPI_Send(&n,1,MPI_INT,0,_numproc,MPI_COMM_WORLD);
122 msg << "[" << _numproc << "] MPI_SEND error";
123 throw SALOME_Exception(msg.str().c_str());
125 err = MPI_Send(ior,n,MPI_CHAR,0,2*_numproc,MPI_COMM_WORLD);
128 msg << "[" << _numproc << "] MPI_SEND error";
129 throw SALOME_Exception(msg.str().c_str());
131 CORBA::string_free(ior);
137 void MPIObject_i::remoteMPI2Connect(std::string service)
140 char port_name[MPI_MAX_PORT_NAME];
141 char port_name_clt[MPI_MAX_PORT_NAME];
142 std::ostringstream msg;
144 if( service.size() == 0 )
146 msg << "[" << _numproc << "] You have to give a service name !";
147 throw SALOME_Exception(msg.str().c_str());
150 if( _srv.find(service) != _srv.end() )
152 msg << "[" << _numproc << "] service " << service << " already exist !";
153 throw SALOME_Exception(msg.str().c_str());
156 _srv[service] = false;
158 MPI_Barrier(MPI_COMM_WORLD);
160 MPI_Errhandler_set(MPI_COMM_WORLD, MPI_ERRORS_RETURN);
163 /* rank 0 try to be a server. If service is already published, try to be a cient */
164 MPI_Open_port(MPI_INFO_NULL, port_name);
165 if ( MPI_Lookup_name((char*)service.c_str(), MPI_INFO_NULL, port_name_clt) == MPI_SUCCESS )
167 MESSAGE("[" << _numproc << "] I get the connection with " << service << " at " << port_name_clt << std::endl);
168 MPI_Close_port( port_name );
170 else if ( MPI_Publish_name((char*)service.c_str(), MPI_INFO_NULL, port_name) == MPI_SUCCESS )
172 _srv[service] = true;
173 _port_name[service] = port_name;
174 MESSAGE("[" << _numproc << "] service " << service << " available at " << port_name << std::endl);
176 else if ( MPI_Lookup_name((char*)service.c_str(), MPI_INFO_NULL, port_name_clt) == MPI_SUCCESS )
178 MESSAGE("[" << _numproc << "] I get the connection with " << service << " at " << port_name_clt << std::endl);
179 MPI_Close_port( port_name );
183 msg << "[" << _numproc << "] Error on connection with " << service << " at " << port_name_clt;
184 throw SALOME_Exception(msg.str().c_str());
190 /* Waiting rank 0 publish name and try to be a client */
191 while ( i != TIMEOUT )
194 if ( MPI_Lookup_name((char*)service.c_str(), MPI_INFO_NULL, port_name_clt) == MPI_SUCCESS )
196 MESSAGE("[" << _numproc << "] I get the connection with " << service << " at " << port_name_clt << std::endl);
203 msg << "[" << _numproc << "] Error on connection with " << service << " at " << port_name_clt;
204 throw SALOME_Exception(msg.str().c_str());
207 MPI_Errhandler_set(MPI_COMM_WORLD, MPI_ERRORS_ARE_FATAL);
209 /* If rank 0 is server, all processes call MPI_Comm_accept */
210 /* If rank 0 is not server, all processes call MPI_Comm_connect */
211 int srv = (int)_srv[service];
212 MPI_Bcast(&srv,1,MPI_INT,0,MPI_COMM_WORLD);
213 _srv[service] = (bool)srv;
215 MPI_Comm_accept( port_name, MPI_INFO_NULL, 0, MPI_COMM_WORLD, &(_icom[service]) );
217 MPI_Comm_connect(port_name_clt, MPI_INFO_NULL, 0, MPI_COMM_WORLD, &(_icom[service]) );
219 /* create global communicator: servers have low index in global communicator*/
220 MPI_Intercomm_merge(_icom[service],!_srv[service],&(_gcom[service]));
222 /* only rank 0 can be server for unpublish name */
223 if(_numproc != 0) _srv[service] = false;
227 void MPIObject_i::remoteMPI2Disconnect(std::string service)
229 std::ostringstream msg;
231 if( service.size() == 0 )
233 msg << "[" << _numproc << "] You have to give a service name !";
234 throw SALOME_Exception(msg.str().c_str());
237 if( _srv.find(service) == _srv.end() )
239 msg << "[" << _numproc << "] service " << service << " don't exist !";
240 throw SALOME_Exception(msg.str().c_str());
243 MPI_Comm_disconnect( &(_gcom[service]) );
247 char port_name[MPI_MAX_PORT_NAME];
248 strcpy(port_name,_port_name[service].c_str());
250 MPI_Unpublish_name((char*)service.c_str(), MPI_INFO_NULL, port_name);
251 MESSAGE("[" << _numproc << "] " << service << ": close port " << _port_name[service] << std::endl);
252 MPI_Close_port( port_name );
253 _port_name.erase(service);
256 _gcom.erase(service);
257 _icom.erase(service);