diff --git a/eo/src/apply.h b/eo/src/apply.h
index 2cd977b08..41d96adba 100644
--- a/eo/src/apply.h
+++ b/eo/src/apply.h
@@ -26,6 +26,7 @@
 #ifndef _apply_h
 #define _apply_h
 
+#include <utils/eoParser.h>
 #include <eoFunctor.h>
 #include <vector>
 
@@ -37,7 +38,8 @@
 template <class EOT>
 void apply(eoUF<EOT&, void>& _proc, std::vector<EOT>& _pop)
 {
-    for (unsigned i = 0; i < _pop.size(); ++i)
+    size_t size = _pop.size();
+    for (size_t i = 0; i < size; ++i)
     {
         _proc(_pop[i]);
     }
@@ -52,8 +54,9 @@ void apply(eoUF<EOT&, void>& _proc, std::vector<EOT>& _pop)
 template <class EOT>
 void omp_apply(eoUF<EOT&, void>& _proc, std::vector<EOT>& _pop)
 {
-#pragma omp parallel for default(none) shared(_proc, _pop)
-    for (unsigned i = 0; i < _pop.size(); ++i)
+    size_t size = _pop.size();
+#pragma omp parallel for if(eo::parallelizeLoopParam.value()) //default(none) shared(_proc, _pop, size)
+    for (size_t i = 0; i < size; ++i)
     {
         _proc(_pop[i]);
     }
@@ -67,8 +70,9 @@ void omp_apply(eoUF<EOT&, void>& _proc, std::vector<EOT>& _pop)
 template <class EOT>
 void omp_dynamic_apply(eoUF<EOT&, void>& _proc, std::vector<EOT>& _pop)
 {
-#pragma omp parallel for default(none) shared(_proc, _pop) schedule(dynamic)
-    for (unsigned i = 0; i < _pop.size(); ++i)
+    size_t size = _pop.size();
+#pragma omp parallel for if(eo::parallelizeLoopParam.value()) schedule(dynamic) //default(none) shared(_proc, _pop, size)
+    for (size_t i = 0; i < size; ++i)
     {
         _proc(_pop[i]);
     }
diff --git a/eo/src/utils/eoParser.cpp b/eo/src/utils/eoParser.cpp
index f6c81f14a..f7c2aac4c 100644
--- a/eo/src/utils/eoParser.cpp
+++ b/eo/src/utils/eoParser.cpp
@@ -61,6 +61,9 @@ eoParameterLoader::~eoParameterLoader()
     }
 }
 
+//multithreading
+eoValueParam<bool> eo::parallelizeLoopParam = eoValueParam<bool>(false, "parallelize-loop", "Enable memory shared parallelization into evaluation's loops", '\0');
+//multithreading ends
 
 eoParser::eoParser ( unsigned _argc, char **_argv , string _programDescription,
                      string _lFileParamName, char _shortHand) :
@@ -99,6 +102,10 @@ eoParser::eoParser ( unsigned _argc, char **_argv , string _programDescription,
     readFrom(stream);
     processParam(needHelp);
     processParam(stopOnUnknownParam);
+
+    //multithreading
+    processParam(eo::parallelizeLoopParam);
+    //multithreading ends
 }
 
 
diff --git a/eo/src/utils/eoParser.h b/eo/src/utils/eoParser.h
index bb8e5811a..073d1a3e3 100644
--- a/eo/src/utils/eoParser.h
+++ b/eo/src/utils/eoParser.h
@@ -93,6 +93,12 @@ private :
 };
 
 
+//multithreading
+namespace eo
+{
+    extern eoValueParam<bool> parallelizeLoopParam;
+}
+//multithreading ends
 
 /**
     eoParser: command line parser and configuration file reader