Added Barrier() to PlumedCommunicator

src/PlumedCommunicator.cpp

@@ -81,6 +81,13 @@ void PlumedCommunicator::Abort(int errorcode){
 #endif
 }
 
+void PlumedCommunicator::Barrier()const{
+#ifdef __PLUMED_MPI
+  assert(initialized());
+  MPI_Barrier(communicator);
+#endif
+}
+
 MPI_Comm & PlumedCommunicator::Get_comm(){
     return communicator;
 }

src/PlumedCommunicator.h

@@ -59,7 +59,8 @@ public:
   void Set_fcomm(void*comm);
 /// Wrapper to MPI_Abort
   void Abort(int);
-
+/// Wrapper to MPI_Barrier
+  void Barrier()const;
 /// Tests if MPI library is initialized
   static bool initialized();