radupopescu

### Keybase proof

I hereby claim:

  * I am radupopescu on github.
  * I am radupopescu (https://keybase.io/radupopescu) on keybase.
  * I have a public key ASCRaRw6hTKM_gFZLSDumscNe6skFXBFA9I86ledy81-AAo

To claim this, I am signing this object:

radupopescu

#include <iostream>
#include <array>

#include <mpi.h>

using message_t = std::array<int, 3>;

void printMessage(const int rank, const message_t& message)
{
    std::cout << "Process " << rank << ": ";