diff --git a/build/ag_gen b/build/ag_gen
index 54814ad..66de6b6 100755
Binary files a/build/ag_gen and b/build/ag_gen differ
diff --git a/src/mpi/serialize.cpp b/src/mpi/serialize.cpp
index 51bd700..2f45358 100644
--- a/src/mpi/serialize.cpp
+++ b/src/mpi/serialize.cpp
@@ -181,6 +181,7 @@ void serialization_unit_testing(AGGenInstance &instance, boost::mpi::communicato
 
     char hammer_host[256];
     gethostname(hammer_host, 256);
+    std::string str_host(hammer_host);
 
     if(world.rank() == 0){
         printf("\n");
@@ -188,8 +189,21 @@ void serialization_unit_testing(AGGenInstance &instance, boost::mpi::communicato
     }
     world.barrier();
 
-    std::cout << "\nHello from process " << world.rank() << " of " << world.size()
-        << "running on " << hammer_host << std::endl;
+    //std::cout << "\nHello from process " << world.rank() << " of " << world.size()
+    //    << " running on " << hammer_host << "." << std::endl;
+    std::string rollcall = "\nHello from process " + std::to_string(world.rank())\
+     + " of " + std::to_string(world.size()) + " running on "\
+      + str_host + ".";
+
+    if(world.rank() != 0)
+        world.send(0, 0, rollcall);
+    else{
+        for(int i = 0; i < world.size()-1; i++){
+            world.recv(mpi::any_source, 0, str_host);
+            std::cout << str_host << std::endl;
+        }
+    }
+    std::cout << "" << std::endl;
     world.barrier();
 
     std::string filename(boost::archive::tmpdir());
@@ -353,7 +367,7 @@ void serialization_unit_testing(AGGenInstance &instance, boost::mpi::communicato
             e_flag = 1;
         }
 
-       
+       std::cout << "" << std::endl;
         if(e_flag == 1)
             std::cout << "-------------ERRORS OCCURRED DURING SERIALIZATION UNIT TESTING---------------" << std::endl;
         std::cout << "---------FINISHED SERIALIZATION UNIT TESTING---------" << std::endl;