HW2: RC3 - A small exchange optimization

homework_2/test/tests_MPI.cpp

@@ -6,6 +6,9 @@
  *      make tests
  *      mpirun -np <N> ./out/tests
  *
+ * Note:
+ *  Yes each process runs the entire test suite!!
+ *
  * \author
  *    Christos Choutouridis AEM:8997
  *    <cchoutou@ece.auth.gr>
@@ -15,7 +18,11 @@
 #include <mpi.h>
 #include <random>
 #include "distsort.hpp"
+/*
+ * Global fixtures
+ */
 
+// MPI handler for the test session
 MPI_t<>         ts_mpi;
 
 // Mersenne seeded from hw if possible. range: [type_min, type_max]
@@ -27,17 +34,11 @@ protected:
     static void SetUpTestSuite() {
         int argc = 0;
         char** argv = nullptr;
-        MPI_Init(&argc, &argv);
-
-        int rank, size;
-        MPI_Comm_rank(MPI_COMM_WORLD, &rank);
-        MPI_Comm_size(MPI_COMM_WORLD, &size);
-        ts_mpi.rank(rank);
-        ts_mpi.size(size);
+        ts_mpi.init(&argc, &argv);
     }
 
     static void TearDownTestSuite() {
-        MPI_Finalize();
+        ts_mpi.finalize();
     }
 };