void task8() {
barrier("Task 8");
int excludeNode = size - 1;
Group group = comm.Get_group().Excl(1, &excludeNode);
Intracomm newComm = comm.Create(group);
string data = "default";
if (newComm != COMM_NULL) {
if (newComm.Get_rank() == master) {
data = "task8";
printf("Process %d initialized data [%s]\n", id, &data[0]);
}
newComm.Barrier();
if(id == master) {
int len = data.length();
newComm.Bcast(&len, 1, INTEGER, master);
newComm.Bcast(&data[0], len + 1, CHAR, master);
printf("Process %d sent data [%s]\n", id, &data[0]);
} else {
int len = 0;
newComm.Bcast(&len, 1, INTEGER, master);
char *resp = new char[len + 1];
newComm.Bcast(resp, len + 1, CHAR, master);
printf("Process %d catched data [%s]\n", id, resp);
delete resp;
}
newComm.Free();
group.Free();
}
}
void task9() {
barrier("Task 9");
int excludeNode = size - 1;
int elements[] = {0, 2};
Group group = comm.Get_group().Incl(2, elements);
Intracomm newComm = comm.Create(group);
int data = 5;
int dataLen = 1;
if (newComm != COMM_NULL) {
if (newComm.Get_rank() == master) {
data = 3;
printf("Process %d initialized data [%d]\n", id, data);
}
int red = 0;
newComm.Reduce(&data, &red, dataLen, INTEGER, SUM, 0);
if (newComm.Get_rank() == master) {
printf("Reduced data: [%d]\n", red);
}
newComm.Free();
group.Free();
}
}