diff --git a/eo/src/mpi/eoMpiAssignmentAlgorithm.h b/eo/src/mpi/eoMpiAssignmentAlgorithm.h
index c3d24a19..0630a6f7 100644
--- a/eo/src/mpi/eoMpiAssignmentAlgorithm.h
+++ b/eo/src/mpi/eoMpiAssignmentAlgorithm.h
@@ -114,13 +114,14 @@ namespace eo
                     init( workers, runs );
                 }
 
-                StaticAssignmentAlgorithm( int runs )
+                StaticAssignmentAlgorithm( int runs = 0 )
                 {
                     std::vector<int> workers;
                     for(int i = 1; i < Node::comm().size(); ++i)
                     {
                         workers.push_back( i );
                     }
+
                     init( workers, runs );
                 }
 
diff --git a/eo/src/utils/eoParallel.cpp b/eo/src/utils/eoParallel.cpp
index d9d09c38..41865198 100644
--- a/eo/src/utils/eoParallel.cpp
+++ b/eo/src/utils/eoParallel.cpp
@@ -37,6 +37,7 @@ eoParallel::eoParallel() :
     _nthreads( 0, "parallelize-nthreads", "Define the number of threads you want to use, nthreads = 0 means you want to use all threads available", '\0' ),
     _enableResults( false, "parallelize-enable-results", "Enable the generation of results", '\0' ),
     _doMeasure( false, "parallelize-do-measure", "Do some measures during execution", '\0' ),
+    _packetSize( 1U, "parallelize-packet-size", "Number of elements which should be sent at a time during a parallel evaluation based on message passing.", '\0'),
     _t_start(0)
 {
 }
@@ -90,6 +91,7 @@ void eoParallel::_createParameters( eoParser& parser )
     parser.processParam( _nthreads, section );
     parser.processParam( _enableResults, section );
     parser.processParam( _doMeasure, section );
+    parser.processParam( _packetSize, section );
 }
 
 void make_parallel(eoParser& parser)
diff --git a/eo/src/utils/eoParallel.h b/eo/src/utils/eoParallel.h
index 3f22f6c4..3aae8e43 100644
--- a/eo/src/utils/eoParallel.h
+++ b/eo/src/utils/eoParallel.h
@@ -54,6 +54,7 @@ public:
     std::string prefix() const;
 
     inline unsigned int nthreads() const { return _nthreads.value(); }
+    inline unsigned int packetSize() const { return _packetSize.value(); }
 
     inline bool enableResults() const { return _enableResults.value(); }
     inline bool doMeasure() const { return _doMeasure.value(); }
@@ -68,6 +69,7 @@ private:
     eoValueParam<bool> _isDynamic;
     eoValueParam<std::string> _prefix;
     eoValueParam<unsigned int> _nthreads;
+    eoValueParam<unsigned int> _packetSize;
     eoValueParam<bool> _enableResults;
     eoValueParam<bool> _doMeasure;
     double _t_start;