pdevs/mpi: add time display

src/tests/mpi/main.cpp

@@ -72,7 +72,18 @@ void example_simple(int argc, char *argv[])
                 paradevs::tests::mpi::RootGraphManagerParameters >
             > rc(0, 20, "root", paradevs::common::NoParameters(), parameters);
 
+
+        steady_clock::time_point t1 = steady_clock::now();
+
         rc.run();
+
+        steady_clock::time_point t2 = steady_clock::now();
+
+        duration < double > time_span = duration_cast <
+            duration < double > >(t2 - t1);
+
+        std::cout << "CHAIN = " << time_span.count() << std::endl;
+
     } else {
         std::stringstream ss;