MPI_Status s;
MPI_Aint send_chunk, recv_chunk;
int i, src, dst, rank, num_procs;
- int tag = 1;
+ int tag = COLL_TAG_ALLTOALL;
char *send_ptr = (char *) send_buff;
char *recv_ptr = (char *) recv_buff;
src = (rank - i + num_procs) % num_procs;
dst = (rank + i) % num_procs;
- smpi_mpi_barrier(comm);
+ mpi_coll_barrier_fun(comm);
smpi_mpi_sendrecv(send_ptr + dst * send_chunk, send_count, send_type, dst,
tag, recv_ptr + src * recv_chunk, recv_count, recv_type,
src, tag, comm, &s);