XBT_INFO("Host \"%u\" received \"%s\"", rank, res);
XBT_INFO("Host \"%u\" send 'Token' to Host \"%s\"", rank, neighbor_mailbox->name());
XBT_INFO("Host \"%u\" received \"%s\"", rank, res);
XBT_INFO("Host \"%u\" send 'Token' to Host \"%s\"", rank, neighbor_mailbox->name());