1 // Copyright (C) 2007-2010 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.
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"
33 MPIObject_i::MPIObject_i()
35 MPI_Comm_size( MPI_COMM_WORLD, &_nbproc );
36 MPI_Comm_rank( MPI_COMM_WORLD, &_numproc );
40 MPIObject_i::MPIObject_i(int nbproc, int numproc)
47 MPIObject_i::~MPIObject_i()
49 if(_tior) delete _tior;
52 Engines::IORTab* MPIObject_i::tior()
54 Engines::IORTab_var tior = new Engines::IORTab;
55 tior->length(_tior->length());
56 for(unsigned int ip=0;ip<tior->length();ip++)
57 tior[ip] = (*_tior)[ip];
61 void MPIObject_i::tior(const Engines::IORTab& ior)
63 _tior = new Engines::IORTab;
64 _tior->length(ior.length());
65 for(unsigned int ip=0;ip<ior.length();ip++)
66 (*_tior)[ip] = ior[ip];
69 void MPIObject_i::BCastIOR(CORBA::ORB_ptr orb, Engines::MPIObject_ptr pobj, bool amiCont)
73 MPI_Status status; /* status de reception de message MPI */
74 std::ostringstream msg;
79 //Allocation du tableau des IOR
80 Engines::IORTab_var iort = new Engines::IORTab;
81 iort->length(_nbproc);
85 // Process 0 recupere les ior de l'object sur les autres process
86 for(ip=1;ip<_nbproc;ip++)
88 err = MPI_Recv(&n,1,MPI_INT,ip,ip,MPI_COMM_WORLD,&status);
91 msg << "[" << _numproc << "] MPI_RECV error";
92 throw SALOME_Exception(msg.str().c_str());
94 // Allocation de la chaine de longueur n
96 err = MPI_Recv(ior,n,MPI_CHAR,ip,2*ip,MPI_COMM_WORLD,&status);
99 msg << "[" << _numproc << "] MPI_RECV error";
100 throw SALOME_Exception(msg.str().c_str());
102 iort[ip] = orb->string_to_object(ior);
104 if(CORBA::is_nil(iort[ip]))
106 msg << "[" << ip << "] MPI Component not loaded";
107 throw SALOME_Exception(msg.str().c_str());
110 // On donne le tableau des ior a l'objet Corba du process 0
112 tior(*(iort._retn()));
114 pobj->tior(*(iort._retn()));
118 // Conversion IOR vers string
119 ior = orb->object_to_string(pobj);
121 // On envoie l'IOR au process 0
122 err = MPI_Send(&n,1,MPI_INT,0,_numproc,MPI_COMM_WORLD);
125 msg << "[" << _numproc << "] MPI_SEND error";
126 throw SALOME_Exception(msg.str().c_str());
128 err = MPI_Send(ior,n,MPI_CHAR,0,2*_numproc,MPI_COMM_WORLD);
131 msg << "[" << _numproc << "] MPI_SEND error";
132 throw SALOME_Exception(msg.str().c_str());
134 CORBA::string_free(ior);
140 void MPIObject_i::remoteMPI2Connect(std::string service)
143 char port_name[MPI_MAX_PORT_NAME];
144 char port_name_clt[MPI_MAX_PORT_NAME];
145 std::ostringstream msg;
147 if( service.size() == 0 )
149 msg << "[" << _numproc << "] You have to give a service name !";
150 throw SALOME_Exception(msg.str().c_str());
153 if( _srv.find(service) != _srv.end() )
155 msg << "[" << _numproc << "] service " << service << " already exist !";
156 throw SALOME_Exception(msg.str().c_str());
159 _srv[service] = false;
161 MPI_Barrier(MPI_COMM_WORLD);
163 MPI_Errhandler_set(MPI_COMM_WORLD, MPI_ERRORS_RETURN);
166 /* rank 0 try to be a server. If service is already published, try to be a cient */
167 MPI_Open_port(MPI_INFO_NULL, port_name);
168 if ( MPI_Publish_name((char*)service.c_str(), MPI_INFO_NULL, port_name) == MPI_SUCCESS )
170 _srv[service] = true;
171 _port_name[service] = port_name;
172 MESSAGE("[" << _numproc << "] service " << service << " available at " << port_name << std::endl);
174 else if ( MPI_Lookup_name((char*)service.c_str(), MPI_INFO_NULL, port_name_clt) == MPI_SUCCESS )
176 MESSAGE("[" << _numproc << "] I get the connection with " << service << " at " << port_name_clt << std::endl);
177 MPI_Close_port( port_name );
181 msg << "[" << _numproc << "] Error on connection with " << service << " at " << port_name_clt;
182 throw SALOME_Exception(msg.str().c_str());
188 /* Waiting rank 0 publish name and try to be a client */
189 while ( i != TIMEOUT )
192 if ( MPI_Lookup_name((char*)service.c_str(), MPI_INFO_NULL, port_name_clt) == MPI_SUCCESS )
194 MESSAGE("[" << _numproc << "] I get the connection with " << service << " at " << port_name_clt << std::endl);
201 msg << "[" << _numproc << "] Error on connection with " << service << " at " << port_name_clt;
202 throw SALOME_Exception(msg.str().c_str());
205 MPI_Errhandler_set(MPI_COMM_WORLD, MPI_ERRORS_ARE_FATAL);
207 /* If rank 0 is server, all processes call MPI_Comm_accept */
208 /* If rank 0 is not server, all processes call MPI_Comm_connect */
209 int srv = (int)_srv[service];
210 MPI_Bcast(&srv,1,MPI_INT,0,MPI_COMM_WORLD);
211 _srv[service] = (bool)srv;
213 MPI_Comm_accept( port_name, MPI_INFO_NULL, 0, MPI_COMM_WORLD, &(_icom[service]) );
215 MPI_Comm_connect(port_name_clt, MPI_INFO_NULL, 0, MPI_COMM_WORLD, &(_icom[service]) );
217 /* create global communicator: servers have low index in global communicator*/
218 MPI_Intercomm_merge(_icom[service],!_srv[service],&(_gcom[service]));
220 /* only rank 0 can be server for unpublish name */
221 if(_numproc != 0) _srv[service] = false;
225 void MPIObject_i::remoteMPI2Disconnect(std::string service)
227 std::ostringstream msg;
229 if( service.size() == 0 )
231 msg << "[" << _numproc << "] You have to give a service name !";
232 throw SALOME_Exception(msg.str().c_str());
235 if( _srv.find(service) == _srv.end() )
237 msg << "[" << _numproc << "] service " << service << " don't exist !";
238 throw SALOME_Exception(msg.str().c_str());
241 MPI_Comm_disconnect( &(_gcom[service]) );
245 char port_name[MPI_MAX_PORT_NAME];
246 strcpy(port_name,_port_name[service].c_str());
248 MPI_Unpublish_name((char*)service.c_str(), MPI_INFO_NULL, port_name);
249 MESSAGE("[" << _numproc << "] " << service << ": close port " << _port_name[service] << std::endl);
250 MPI_Close_port( port_name );
251 _port_name.erase(service);
254 _gcom.erase(service);
255 _icom.erase(service);