First parallel evaluation with MPI. Look at t-eoMpiParallel.cpp

eo/src/apply.h

@@ -33,6 +33,11 @@
 #include <vector>
 #include <omp.h>
 
+# ifdef WITH_MPI
+# include <eompi.h>
+# include <eoParallelApply.h>
+# endif // WITH_MPI
+
 /**
   Applies a unary function to a std::vector of things.
 
@@ -48,33 +53,48 @@ void apply(eoUF<EOT&, void>& _proc, std::vector<EOT>& _pop)
     double t1 = 0;
 
     if ( eo::parallel.enableResults() )
-	{
-	    t1 = omp_get_wtime();
-	}
+    {
+        t1 = omp_get_wtime();
+    }
 
     if (!eo::parallel.isDynamic())
-	{
+    {
 #pragma omp parallel for if(eo::parallel.isEnabled()) //default(none) shared(_proc, _pop, size)
-	    for (size_t i = 0; i < size; ++i) { _proc(_pop[i]); }
-	}
+        for (size_t i = 0; i < size; ++i) { _proc(_pop[i]); }
+    }
     else
-	{
+    {
 #pragma omp parallel for schedule(dynamic) if(eo::parallel.isEnabled())
-	    //doesnot work with gcc 4.1.2
-	    //default(none) shared(_proc, _pop, size)
-	    for (size_t i = 0; i < size; ++i) { _proc(_pop[i]); }
-	}
+        //doesnot work with gcc 4.1.2
+        //default(none) shared(_proc, _pop, size)
+        for (size_t i = 0; i < size; ++i) { _proc(_pop[i]); }
+    }
 
     if ( eo::parallel.enableResults() )
-	{
-	    double t2 = omp_get_wtime();
-	    eoLogger log;
-	    log << eo::file(eo::parallel.prefix()) << t2 - t1 << ' ';
-	}
+    {
+        double t2 = omp_get_wtime();
+        eoLogger log;
+        log << eo::file(eo::parallel.prefix()) << t2 - t1 << ' ';
+    }
 
 #else // _OPENMP
 
+#ifdef WITH_MPI
+    ParallelApply<EOT> job( _proc, _pop );
+    MasterNode* master = dynamic_cast<MasterNode*>( MpiNodeStore::instance() );
+    if ( master )
+    {
+        DynamicAssignmentAlgorithm algo;
+        master->setAssignmentAlgorithm( &algo );
+        master->run( job );
+    } else
+    {
+        WorkerNode* wrk = dynamic_cast<WorkerNode*>( MpiNodeStore::instance() );
+        wrk->run( job );
+    }
+#else // !_MPI
     for (size_t i = 0; i < size; ++i) { _proc(_pop[i]); }
+#endif
 
 #endif // !_OPENMP
 }

eo/test/t-eoMpiParallel.cpp

@@ -0,0 +1,111 @@
+//-----------------------------------------------------------------------------
+// t-eoMpiParallel.cpp
+//-----------------------------------------------------------------------------
+
+#include <eo>
+#include <es/make_real.h>
+//#include <apply.h>
+#include "real_value.h"
+
+#include <boost/mpi.hpp>
+
+//-----------------------------------------------------------------------------
+
+class eoRealSerializable : public eoReal< eoMinimizingFitness >, public eoserial::Persistent
+{
+    public:
+
+        eoRealSerializable(unsigned size = 0, double value = 0.0):
+            eoReal<eoMinimizingFitness>(size, value) {}
+
+        eoserial::Object* pack() const
+        {
+            eoserial::Object* obj = new eoserial::Object;
+            obj->add( "array",
+                    eoserial::makeArray< vector<double>, eoserial::MakeAlgorithm >
+                    ( *this )
+                    );
+            return obj;
+        }
+
+        void unpack( const eoserial::Object* obj )
+        {
+            eoserial::unpackArray< vector<double>, eoserial::Array::UnpackAlgorithm >
+                ( *obj, "array", *this );
+        }
+
+        // Gives access to boost serialization
+        friend class boost::serialization::access;
+
+        /**
+         * Serializes the decomposition in a boost archive (useful for boost::mpi)
+         */
+        template <class Archive>
+            void save( Archive & ar, const unsigned int version ) const
+            {
+                std::stringstream ss;
+                printOn( ss );
+                std::string asStr = ss.str();
+                ar & asStr;
+
+                (void) version; // avoid compilation warning
+            }
+
+        /**
+         * Deserializes the decomposition from a boost archive (useful for boost:mpi)
+         */
+        template <class Archive>
+            void load( Archive & ar, const unsigned int version )
+            {
+                std::string asStr;
+                ar & asStr;
+                std::stringstream ss;
+                ss << asStr;
+                readFrom( ss );
+
+                (void) version; // avoid compilation warning
+            }
+
+        // Indicates that boost save and load operations are not the same.
+        BOOST_SERIALIZATION_SPLIT_MEMBER()
+
+};
+
+typedef eoRealSerializable EOT;
+
+int main(int ac, char** av)
+{
+    MpiSingletonFactory::init( ac, av );
+
+    eoParser parser(ac, av);
+
+    unsigned int popSize = parser.getORcreateParam((unsigned int)100, "popSize", "Population Size", 'P', "Evolution Engine").value();
+    unsigned int dimSize = parser.getORcreateParam((unsigned int)10, "dimSize", "Dimension Size", 'd', "Evolution Engine").value();
+
+    uint32_t seedParam = parser.getORcreateParam((uint32_t)0, "seed", "Random number seed", 0).value();
+    if (seedParam == 0) { seedParam = time(0); }
+
+    make_parallel(parser);
+    make_help(parser);
+
+    rng.reseed( seedParam );
+
+    eoUniformGenerator< double > gen(-5, 5);
+    eoInitFixedLength< EOT > init( dimSize, gen );
+
+    eoEvalFuncPtr< EOT, double, const std::vector< double >& > mainEval( real_value );
+    eoEvalFuncCounter< EOT > eval( mainEval );
+
+    eoPop< EOT > pop( popSize, init );
+
+    eo::log << "Size of population : " << popSize << std::endl;
+
+    eoPopLoopEval< EOT > popEval( eval );
+    popEval( pop, pop );
+
+    eo::log << eo::quiet << "DONE!" << std::endl;
+
+    return 0;
+}
+
+//-----------------------------------------------------------------------------