diff --git a/eo/src/mpi/eoMultiStart.h b/eo/src/mpi/eoMultiStart.h
index b8455e68..5be5fd68 100644
--- a/eo/src/mpi/eoMultiStart.h
+++ b/eo/src/mpi/eoMultiStart.h
@@ -53,10 +53,14 @@ namespace eo
         {
             typedef eoUF< eoPop<EOT>&, void> ResetAlgo;
 
-            MultiStartData( bmpi::communicator& _comm, eoAlgo<EOT>& _algo, int _masterRank, ResetAlgo & _resetAlgo )
+            MultiStartData(
+                    bmpi::communicator& _comm,
+                    eoAlgo<EOT>& _algo,
+                    int _masterRank,
+                    ResetAlgo & _resetAlgo )
                 :
-                    runs( 0 ), pop(), bests(),
-                    comm( _comm ), algo( _algo ), masterRank( _masterRank ), resetAlgo( _resetAlgo )
+                    runs( 0 ), bests(), pop(),
+                    comm( _comm ), algo( _algo ), resetAlgo( _resetAlgo ), masterRank( _masterRank )
             {
                 // empty
             }
@@ -245,20 +249,20 @@ namespace eo
                 {
                     _data.runs = runs;
 
-                    int nbWorkers = workers.size();
+                    unsigned nbWorkers = workers.size();
                     std::vector< int > seeds = _getSeeds( nbWorkers );
                     if( eo::mpi::Node::comm().rank() == _masterRank )
                     {
                         if( seeds.size() < nbWorkers )
                         {
                             // Random seeds
-                            for( int i = seeds.size(); i < nbWorkers; ++i )
+                            for( unsigned i = seeds.size(); i < nbWorkers; ++i )
                             {
                                 seeds.push_back( eo::rng.rand() );
                             }
                         }
 
-                        for( int i = 0 ; i < nbWorkers ; ++i )
+                        for( unsigned i = 0 ; i < nbWorkers ; ++i )
                         {
                             int wrkRank = workers[i];
                             eo::mpi::Node::comm().send( wrkRank, 1, seeds[ i ] );
diff --git a/eo/src/utils/eoParallel.h b/eo/src/utils/eoParallel.h
index b812fecc..c7a15a4f 100644
--- a/eo/src/utils/eoParallel.h
+++ b/eo/src/utils/eoParallel.h
@@ -68,9 +68,9 @@ private:
     eoValueParam<bool> _isDynamic;
     eoValueParam<std::string> _prefix;
     eoValueParam<unsigned int> _nthreads;
-    eoValueParam<unsigned int> _packetSize;
     eoValueParam<bool> _enableResults;
     eoValueParam<bool> _doMeasure;
+    eoValueParam<unsigned int> _packetSize;
     double _t_start;
 };
 
diff --git a/eo/test/mpi/t-mpi-multipleRoles.cpp b/eo/test/mpi/t-mpi-multipleRoles.cpp
index 07f65937..3a525126 100644
--- a/eo/test/mpi/t-mpi-multipleRoles.cpp
+++ b/eo/test/mpi/t-mpi-multipleRoles.cpp
@@ -118,7 +118,7 @@ struct Work: public eoUF< SerializableVector< SerializableBase<int> >&, void >
     {
         cout << "Work phase..." << endl;
         subtask( v, Node::comm().rank() );
-        for( int i = 0; i < v.size(); ++i )
+        for( unsigned i = 0; i < v.size(); ++i )
         {
             v[i] *= 2;
         }
@@ -168,7 +168,7 @@ int main(int argc, char** argv)
                     EmptyJob stop( algo, 0 );
                     v = metaV[0];
                     cout << "Results : " << endl;
-                    for(int i = 0; i < v.size(); ++i)
+                    for(unsigned i = 0; i < v.size(); ++i)
                     {
                         cout << v[i] << ' ';
                     }
diff --git a/eo/test/mpi/t-mpi-parallelApply.cpp b/eo/test/mpi/t-mpi-parallelApply.cpp
index 6cda8990..559505bd 100644
--- a/eo/test/mpi/t-mpi-parallelApply.cpp
+++ b/eo/test/mpi/t-mpi-parallelApply.cpp
@@ -198,7 +198,7 @@ int main(int argc, char** argv)
             // job.
             EmptyJob stop( *(tests[i].assign), eo::mpi::DEFAULT_MASTER ); 
             ++offset;
-            for(int i = 0; i < v.size(); ++i)
+            for(unsigned i = 0; i < v.size(); ++i)
             {
                 cout << v[i] << ' ';
                 if( originalV[i] + offset != v[i] )
diff --git a/eo/test/mpi/t-mpi-wrapper.cpp b/eo/test/mpi/t-mpi-wrapper.cpp
index cedc717f..7e5fa4d2 100644
--- a/eo/test/mpi/t-mpi-wrapper.cpp
+++ b/eo/test/mpi/t-mpi-wrapper.cpp
@@ -116,7 +116,7 @@ int main(int argc, char** argv)
     if( job.isMaster() )
     {
         ++offset;
-        for(int i = 0; i < v.size(); ++i)
+        for(unsigned i = 0; i < v.size(); ++i)
         {
             cout << v[i] << ' ';
             if( originalV[i] + offset != v[i] )