Use own implementation of Boost::mpi API instead of real Boost::mpi.

eo/src/mpi/eoMpi.cpp

@@ -9,3 +9,11 @@ namespace eo
     }
 }
 
+namespace mpi
+{
+    void broadcast( communicator & comm, int value, int root )
+    {
+        comm; // unused
+        MPI_Bcast( &value, 1, MPI_INT, root, MPI_COMM_WORLD );
+    }
+}

eo/src/mpi/eoMpiNode.h

@@ -22,8 +22,8 @@ Authors:
 # ifndef __MPI_NODE_H__
 # define __MPI_NODE_H__
 
-# include <boost/mpi.hpp>
+# include "implMpi.hpp"
-namespace bmpi = boost::mpi;
+namespace bmpi = mpi;
 
 namespace eo
 {

eo/src/mpi/implMpi.hpp

@@ -0,0 +1,283 @@
+# ifndef __EO_MPI_HPP__
+# define __EO_MPI_HPP__
+
+# include <mpi.h>
+# include <serial/eoSerial.h>
+
+# include <fstream>
+
+namespace mpi
+{
+    const int any_source = MPI_ANY_SOURCE;
+    const int any_tag = MPI_ANY_TAG;
+
+    class environment
+    {
+        public:
+
+        environment(int argc, char**argv)
+        {
+            MPI_Init(&argc, &argv);
+        }
+
+        ~environment()
+        {
+            MPI_Finalize();
+        }
+    };
+
+    class status
+    {
+        public:
+
+        status( const MPI_Status & s )
+        {
+            _source = s.MPI_SOURCE;
+            _tag = s.MPI_TAG;
+            _error = s.MPI_ERROR;
+        }
+
+        int tag() { return _tag; }
+        int error() { return _error; }
+        int source() { return _source; }
+
+        private:
+            int _source;
+            int _tag;
+            int _error;
+    };
+
+    class communicator
+    {
+        public:
+
+        communicator( )
+        {
+            _rank = -1;
+            _size = -1;
+
+            _buf = 0;
+            _bufsize = -1;
+        }
+
+        ~communicator()
+        {
+            if( _buf )
+            {
+                delete _buf;
+                _buf = 0;
+            }
+        }
+
+        int rank()
+        {
+            if ( _rank == -1 )
+            {
+                MPI_Comm_rank( MPI_COMM_WORLD, &_rank );
+            }
+            return _rank;
+        }
+
+        int size()
+        {
+            if ( _size == -1 )
+            {
+                MPI_Comm_size( MPI_COMM_WORLD, &_size );
+            }
+            return _size;
+        }
+
+        /*
+         * SEND / RECV INT
+         */
+        void send( int dest, int tag, int n )
+        {
+            //send( dest, tag, &n, 1 );
+            MPI_Send( &n, 1, MPI_INT, dest, tag, MPI_COMM_WORLD );
+        }
+
+        void recv( int src, int tag, int& n )
+        {
+            MPI_Status stat;
+            MPI_Recv( &n, 1, MPI_INT, src, tag, MPI_COMM_WORLD , &stat );
+            //recv( src, tag, &n, 1 );
+        }
+
+        /*
+        void send( int dest, int tag, int* table, int size )
+        {
+            MPI_Send( table, size, MPI_INT, dest, tag, MPI_COMM_WORLD );
+        }
+
+        void recv( int src, int tag, int* table, int size )
+        {
+            MPI_Status stat;
+            MPI_Recv( table, size, MPI_INT, src, tag, MPI_COMM_WORLD , &stat );
+        }
+        */
+
+        /*
+         * SEND / RECV STRING
+         */
+        void send( int dest, int tag, const std::string& str )
+        {
+            int size = str.size() + 1;
+            send( dest, tag, size );
+            MPI_Send( (char*)str.c_str(), size, MPI_CHAR, dest, tag, MPI_COMM_WORLD);
+        }
+
+        void recv( int src, int tag, std::string& str )
+        {
+            int size = -1;
+            MPI_Status stat;
+            recv( src, tag, size );
+
+            if( _buf == 0 )
+            {
+                _buf = new char[ size ];
+                _bufsize = size;
+            } else if( _bufsize < size )
+            {
+                delete [] _buf;
+                _buf = new char[ size ];
+                _bufsize = size;
+            }
+            MPI_Recv( _buf, size, MPI_CHAR, src, tag, MPI_COMM_WORLD, &stat );
+            str.assign( _buf );
+        }
+
+        /*
+         * SEND / RECV Objects
+         */
+        void send( int dest, int tag, const eoserial::Persistent & persistent )
+        {
+            eoserial::Object* obj = persistent.pack();
+            std::stringstream ss;
+            obj->print( ss );
+            delete obj;
+            send( dest, tag, ss.str() );
+        }
+
+        /*
+        void send( int dest, int tag, eoserial::Persistent* table, int size )
+        {
+            // Puts all the values into an array
+            eoserial::Array* array = new eoserial::Array;
+
+            std::cout << "DEBUG EO: @ premier: " << table << " / @ second: " << table+1 << std::endl;
+
+            for( int i = 0; i < size; ++i )
+            {
+                array->push_back( table[i].pack() );
+            }
+
+            // Encapsulates the array into an object
+            eoserial::Object* obj = new eoserial::Object;
+            obj->add( "array", array );
+            std::stringstream ss;
+            obj->print( ss );
+            delete obj;
+
+            // Sends the object as a string
+            send( dest, tag, ss.str() );
+        }
+        */
+
+        template< class T >
+        void send( int dest, int tag, T* table, int size )
+        {
+            // Puts all the values into an array
+            eoserial::Array* array = new eoserial::Array;
+
+            for( int i = 0; i < size; ++i )
+            {
+                array->push_back( table[i].pack() );
+            }
+
+            // Encapsulates the array into an object
+            eoserial::Object* obj = new eoserial::Object;
+            obj->add( "array", array );
+            std::stringstream ss;
+            obj->print( ss );
+            delete obj;
+
+            // Sends the object as a string
+            send( dest, tag, ss.str() );
+        }
+
+
+        void recv( int src, int tag, eoserial::Persistent & persistent )
+        {
+            std::string asText;
+            recv( src, tag, asText );
+            eoserial::Object* obj = eoserial::Parser::parse( asText );
+            persistent.unpack( obj );
+            delete obj;
+        }
+
+        /*
+        void recv( int src, int tag, eoserial::Persistent* table, int size )
+        {
+            // Receives the string which contains the object
+            std::string asText;
+            recv( src, tag, asText );
+
+            // Parses the object and retrieves the table
+            eoserial::Object* obj = eoserial::Parser::parse( asText );
+            eoserial::Array* array = static_cast<eoserial::Array*>( (*obj)["array"] );
+
+            // Retrieves all the values from the array
+            for( int i = 0; i < size; ++i )
+            {
+                eoserial::unpackObject( *array, i, table[i] );
+            }
+            delete obj;
+        }
+        */
+
+        template< class T >
+        void recv( int src, int tag, T* table, int size )
+        {
+            // Receives the string which contains the object
+            std::string asText;
+            recv( src, tag, asText );
+
+            // Parses the object and retrieves the table
+            eoserial::Object* obj = eoserial::Parser::parse( asText );
+            eoserial::Array* array = static_cast<eoserial::Array*>( (*obj)["array"] );
+
+            // Retrieves all the values from the array
+            for( int i = 0; i < size; ++i )
+            {
+                eoserial::unpackObject( *array, i, table[i] );
+            }
+            delete obj;
+        }
+
+        /*
+         * Other methods
+         */
+        status probe( int src = any_source, int tag = any_tag )
+        {
+            MPI_Status stat;
+            MPI_Probe( src, tag, MPI_COMM_WORLD , &stat );
+            return status( stat );
+        }
+
+        void barrier()
+        {
+            MPI_Barrier( MPI_COMM_WORLD );
+        }
+
+        private:
+            int _rank;
+            int _size;
+
+            char* _buf;
+            int _bufsize;
+    };
+
+    void broadcast( communicator & comm, int value, int root );
+} // namespace mpi
+
+# endif //__EO_MPI_HPP__