ex7

ex7/code/task2/first.template/main.cpp

@@ -0,0 +1,33 @@
+//		MPI code in C++.
+//		See [Gropp/Lusk/Skjellum, "Using MPI", p.33/41 etc.]
+//		and  /opt/mpich/include/mpi2c++/comm.h  for details
+
+#include "greetings.h"
+#include <iostream>                               // MPI
+#include <mpi.h>
+using namespace std;
+
+int main(int argc, char *argv[])
+{
+    MPI_Comm icomm = MPI_COMM_WORLD;
+    MPI_Init(&argc, &argv);
+    int myrank, numprocs;
+    // numprocs = 1;    // delete this line when uncommenting the next line
+    MPI_Comm_rank(icomm, &myrank);                          // my MPI-rank
+    MPI_Comm_size(icomm, &numprocs);
+
+    if (0==myrank) {
+        cout << "\n There are " << numprocs << " processes running.\n \n";
+    }
+
+    // greetings(icomm);
+    greetings_cpp(icomm);
+
+    if (0==myrank) cout << endl;
+
+    MPI_Finalize();
+
+    return 0;
+}
+
+