-#include "colls.h"
+#include "colls_private.h"
// Allgather-Non-Topoloty-Scecific-Logical-Ring algorithm
int
MPI_Status status;
int i, to, from, rank, size;
int send_offset, recv_offset;
- int tag = 500;
+ int tag = COLL_TAG_ALLGATHER;
- MPI_Comm_rank(comm, &rank);
- MPI_Comm_size(comm, &size);
- MPI_Type_extent(rtype, &rextent);
- MPI_Type_extent(stype, &sextent);
+ rank = smpi_comm_rank(comm);
+ size = smpi_comm_size(comm);
+ rextent = smpi_datatype_get_extent(rtype);
+ sextent = smpi_datatype_get_extent(stype);
// irregular case use default MPI fucntions
- if (scount * sextent != rcount * rextent)
- MPI_Allgather(sbuf, scount, stype, rbuf, rcount, rtype, comm);
+ if (scount * sextent != rcount * rextent) {
+ XBT_WARN("MPI_allgather_NTSLR use default MPI_allgather.");
+ smpi_mpi_allgather(sbuf, scount, stype, rbuf, rcount, rtype, comm);
+ return MPI_SUCCESS;
+ }
// topo non-specific
to = (rank + 1) % size;
//copy a single segment from sbuf to rbuf
send_offset = rank * scount * sextent;
- MPI_Sendrecv(sbuf, scount, stype, rank, tag,
+ smpi_mpi_sendrecv(sbuf, scount, stype, rank, tag,
(char *)rbuf + send_offset, rcount, rtype, rank, tag,
comm, &status);
for (i = 0; i < size - 1; i++) {
send_offset = ((rank - i + size) % size) * increment;
recv_offset = ((rank - i - 1 + size) % size) * increment;
- MPI_Sendrecv((char *) rbuf + send_offset, scount, stype, to, tag + i,
+ smpi_mpi_sendrecv((char *) rbuf + send_offset, scount, stype, to, tag + i,
(char *) rbuf + recv_offset, rcount, rtype, from, tag + i,
comm, &status);
}