optimized performance of InfoCollection generation

src/mesa_pd/domain/InfoCollection.h

@@ -55,8 +55,6 @@ void createWithNeighborhood(Accessor& ac, const BlockForest& bf, pe::InfoCollect
                ++info.computationalWeight;
             }
 
-         }
-
             for (uint_t branchID = 0; branchID < 8; ++branchID)
             {
                const auto childID   = BlockID(block->getId(), branchID);
@@ -71,7 +69,10 @@ void createWithNeighborhood(Accessor& ac, const BlockForest& bf, pe::InfoCollect
                   {
                      ++childInfo.computationalWeight;
                   }
+                  break; //particle can only be located within one child
+               }
             }
+            break; //particle can only be located within one block
          }
       }
    }