MPI: MPI_Get not working - mpi

Question

The following code creates a window in process 0 (master) and the other processes put some values in it and I'm trying to get the window of the master from other processes each time to print it but I'm getting totally confusing results. Here's the code:
int main ( int argc, char *argv[] )
{
int id;
MPI_Init ( &argc, &argv );
MPI_Comm_rank ( MPI_COMM_WORLD, &id );
MPI_Win win;
if (id == 0)
{
int *arr;
int in = 0;
MPI_Alloc_mem(10 * sizeof(int), MPI_INFO_NULL, &arr);
for(in = 1; in < 10; in++)
{
arr[in] = -1;
}
arr[0] = 0;
MPI_Win_create(arr, 10 * sizeof(int), sizeof(int), MPI_INFO_NULL,MPI_COMM_WORLD, &win);
int ready = 0;
while (!ready)
{
MPI_Win_lock(MPI_LOCK_SHARED, 0, 0, win);
ready = fini(arr);
MPI_Win_unlock(0, win);
}
printf("All workers checked in using RMA\n");
MPI_Win_free(&win);
MPI_Free_mem(arr);
printf("Master done\n");
}
else
{
int one = id;
int *local;
int i = 0;
MPI_Alloc_mem(sizeof(int)*10, MPI_INFO_NULL, &local);
MPI_Win_create(NULL, 0, 1, MPI_INFO_NULL, MPI_COMM_WORLD, &win);
MPI_Win_lock(MPI_LOCK_EXCLUSIVE, 0, 0, win);
for(i = 0; i < 10; i++)
{
MPI_Get(&local[i], 1, MPI_INT, 0, i,1, MPI_INT, win);
}
printf("Worker before %d: ", id);
pt(local); //Printing array "local"
MPI_Put(&one, 1, MPI_INT, 0, id, 1, MPI_INT, win);
for(i = 0; i < 10; i++)
{
MPI_Get(&local[i], 1, MPI_INT, 0, i,1, MPI_INT, win);
}
printf("Worker %d done: ", id);
pt(local);
MPI_Win_unlock(0, win);
MPI_Win_free(&win);
}
MPI_Finalize ( );
return 0;
}
int fini ( int table[] )
{
int i = 0;
while(i < 10)
{
if(table[i] == -1) return 0;
i++;
}
return 1;
}
void pt(int t[])
{
int i = 0;
while(i < 10)
{
printf("%d ",t[i]);
i++;
}
printf("\n");
}
This actually gives me the following result:
Worker before 4: 1152288776 32731 1152288776 32731 4 0 0 0 48 0
Worker 4 done: 1152288776 32731 1152288776 32731 4 0 0 0 48 0
Worker before 1: 1525372936 32743 1525372936 32743 4 0 0 0 48 0
Worker 1 done: 1525372936 32743 1525372936 32743 4 0 0 0 48 0
Worker before 3: 1422645256 32661 1422645256 32661 4 0 0 0 48 0
Worker 3 done: 1422645256 32661 1422645256 32661 4 0 0 0 48 0
Worker before 6: 1553508328 32675 34348016 0 0 0 33 0 1553508280 32675
Worker 6 done: 1553508328 32675 34348016 0 0 0 33 0 1553508280 32675
Worker before 5: -1745405976 32676 33995760 0 0 0 33 0 -1745406024 32676
Worker 5 done: -1745405976 32676 33995760 0 0 0 33 0 -1745406024 32676
Worker before 9: -990742552 32568 20737008 0 0 0 33 0 -990742600 32568
Worker 9 done: -990742552 32568 20737008 0 0 0 33 0 -990742600 32568
Worker before 2: 1455122440 32635 1455122440 32635 4 0 0 0 48 0
Worker 2 done: 1455122440 32635 1455122440 32635 4 0 0 0 48 0
Worker before 7: -1086933016 32650 18463728 0 0 0 33 0 -1086933064 32650
Worker 7 done: -1086933016 32650 18463728 0 0 0 33 0 -1086933064 32650
Worker before 8: 1328670696 32548 24464368 0 0 0 33 0 1328670648 32548
Worker 8 done: 1328670696 32548 24464368 0 0 0 33 0 1328670648 32548
Can you please help me figure out what's wrong with my code ? Thanks.
edit : Apparently the problem is that MPI_Get doesn't fill the "local" buffer...