diff --git a/include/ALL_Histogram.hpp b/include/ALL_Histogram.hpp
index f4c204d7db7b7d822dc3b20d4fe206e95849e215..139c131a34c6a56e4934926547bb763668325fa2 100644
--- a/include/ALL_Histogram.hpp
+++ b/include/ALL_Histogram.hpp
@@ -459,9 +459,11 @@ template <class T, class W> void Histogram_LB<T, W>::find_neighbors() {
 
   MPI_Cart_rank(this->globalComm, offset_coords, &rank_offset);
 
+#ifdef ALL_DEBUG_ENABLED  
   MPI_Barrier(this->globalComm);
   if (this->localRank == 0)
     std::cout << "HISTOGRAM: neighbor_find y-communication" << std::endl;
+#endif  
   // wait for communication
   MPI_Wait(&sreq, &sstat);
   MPI_Wait(&rreq, &rstat);
@@ -505,9 +507,11 @@ template <class T, class W> void Histogram_LB<T, W>::find_neighbors() {
 
   MPI_Cart_rank(this->globalComm, offset_coords, &rank_offset);
 
+#ifdef ALL_DEBUG_ENABLED  
   MPI_Barrier(this->globalComm);
   if (this->localRank == 0)
     std::cout << "HISTOGRAM: neighbor_find y-communication 2" << std::endl;
+#endif
   // wait for communication
   MPI_Wait(&sreq, &sstat);
   MPI_Wait(&rreq, &rstat);
@@ -567,9 +571,11 @@ template <class T, class W> void Histogram_LB<T, W>::find_neighbors() {
 
   MPI_Cart_rank(this->globalComm, offset_coords, &rank_offset);
 
+#ifdef ALL_DEBUG_ENABLED  
   MPI_Barrier(this->globalComm);
   if (this->localRank == 0)
     std::cout << "HISTOGRAM: neighbor_find z-communication" << std::endl;
+#endif
   // wait for communication
   MPI_Wait(&sreq, &sstat);
   MPI_Wait(&rreq, &rstat);
@@ -637,16 +643,19 @@ template <class T, class W> void Histogram_LB<T, W>::find_neighbors() {
 
   MPI_Cart_rank(this->globalComm, offset_coords, &rank_offset);
 
+#ifdef ALL_DEBUG_ENABLED  
   MPI_Barrier(this->globalComm);
   if (this->localRank == 0)
     std::cout << "HISTOGRAM: neighbor_find z-communication 2" << std::endl;
+#endif
 
   // wait for communication
   MPI_Wait(&sreq, &sstat);
   MPI_Wait(&rreq, &rstat);
+#ifdef ALL_DEBUG_ENABLED  
   if (this->localRank == 0)
     std::cout << "HISTOGRAM: neighbor_find z-communication 2" << std::endl;
-
+#endif
   // iterate about neighbor borders to determine the neighborship relation
   nNeighbors.at(5) = 0;
   for (int y = 0; y < this->global_dims.at(1); ++y) {