FOREACH (ALLTOALL_COLL 2dmesh 3dmesh pair pair_one_barrier pair_light_barrier
pair_mpi_barrier rdb ring ring_light_barrier
ring_mpi_barrier ring_one_barrier
- simple bruck basic_linear pairwise)
+ simple bruck basic_linear)
ADD_TEST(smpi-alltoall-coll-${ALLTOALL_COLL} ${CMAKE_BINARY_DIR}/bin/tesh ${TESH_OPTION} --cfg smpi/alltoall:${ALLTOALL_COLL} --cd ${CMAKE_BINARY_DIR}/teshsuite/smpi ${CMAKE_HOME_DIRECTORY}/teshsuite/smpi/alltoall_coll.tesh)
ENDFOREACH()
FOREACH (ALLTOALLV_COLL default pair pair_light_barrier pair_mpi_barrier
pair_one_barrier ring ring_light_barrier
- ring_mpi_barrier ring_one_barrier bruck pairwise)
+ ring_mpi_barrier ring_one_barrier bruck)
ADD_TEST(smpi-alltoallv-coll-${ALLTOALLV_COLL} ${CMAKE_BINARY_DIR}/bin/tesh ${TESH_OPTION} --cfg smpi/alltoallv:${ALLTOALLV_COLL} --cd ${CMAKE_BINARY_DIR}/teshsuite/smpi ${CMAKE_HOME_DIRECTORY}/teshsuite/smpi/alltoallv_coll.tesh)
ENDFOREACH()
FOREACH (BCAST_COLL default arrival_nb arrival_pattern_aware arrival_pattern_aware_wait arrival_scatter
COLL_APPLY(action, COLL_ALLTOALLV_SIG, ring) COLL_sep \
COLL_APPLY(action, COLL_ALLTOALLV_SIG, ring_light_barrier) COLL_sep \
COLL_APPLY(action, COLL_ALLTOALLV_SIG, ring_mpi_barrier) COLL_sep \
-COLL_APPLY(action, COLL_ALLTOALLV_SIG, ring_one_barrier) COLL_sep \
-COLL_APPLY(action, COLL_ALLTOALLV_SIG, pairwise)
+COLL_APPLY(action, COLL_ALLTOALLV_SIG, ring_one_barrier)
COLL_ALLTOALLVS(COLL_PROTO, COLL_NOsep)
void *recvbuf, int recvcount,
MPI_Datatype recvtype,
MPI_Comm comm);
-int smpi_coll_tuned_alltoall_pairwise(void *sendbuf, int sendcount,
- MPI_Datatype sendtype, void *recvbuf,
- int recvcount, MPI_Datatype recvtype,
- MPI_Comm comm);
int smpi_coll_basic_alltoallv(void *sendbuf, int *sendcounts,
int *senddisps, MPI_Datatype sendtype,
void *recvbuf, int *recvcounts,
{"basic_linear",
"Alltoall basic linear (SG) collective",
smpi_coll_tuned_alltoall_basic_linear},
- {"pairwise",
- "Alltoall pairwise (SG) collective",
- smpi_coll_tuned_alltoall_pairwise},
{NULL, NULL, NULL} /* this array must be NULL terminated */
};
recvcount, recvtype, comm);
} else {
return
- smpi_coll_tuned_alltoall_pairwise(sendbuf, sendcount, sendtype,
- recvbuf, recvcount, recvtype,
- comm);
+ smpi_coll_tuned_alltoall_ring(sendbuf, sendcount, sendtype,
+ recvbuf, recvcount, recvtype,
+ comm);
}
}
return err;
}
-/**
- * Alltoall pairwise
- *
- * this algorithm performs size steps (1<=s<=size) and
- * at each step s, a process p sends iand receive to.from a unique distinct remote process
- * size=5 : s=1: 4->0->1, 0->1->2, 1->2->3, ...
- * s=2: 3->0->2, 4->1->3, 0->2->4, 1->3->0 , 2->4->1
- * ....
- * Openmpi calls this routine when the message size sent to each rank is greater than 3000 bytes
- **/
-int smpi_coll_tuned_alltoall_pairwise(void *sendbuf, int sendcount,
- MPI_Datatype sendtype, void *recvbuf,
- int recvcount, MPI_Datatype recvtype,
- MPI_Comm comm)
-{
- int system_tag = 999;
- int rank, size, step, sendto, recvfrom, sendsize, recvsize;
-
- rank = smpi_comm_rank(comm);
- size = smpi_comm_size(comm);
- XBT_DEBUG("<%d> algorithm alltoall_pairwise() called.", rank);
- sendsize = smpi_datatype_size(sendtype);
- recvsize = smpi_datatype_size(recvtype);
- /* Perform pairwise exchange - starting from 1 so the local copy is last */
- for (step = 1; step < size + 1; step++) {
- /* who do we talk to in this step? */
- sendto = (rank + step) % size;
- recvfrom = (rank + size - step) % size;
- /* send and receive */
- smpi_mpi_sendrecv(&((char *) sendbuf)[sendto * sendsize * sendcount],
- sendcount, sendtype, sendto, system_tag,
- &((char *) recvbuf)[recvfrom * recvsize * recvcount],
- recvcount, recvtype, recvfrom, system_tag, comm,
- MPI_STATUS_IGNORE);
- }
- return MPI_SUCCESS;
-}
-
int smpi_coll_basic_alltoallv(void *sendbuf, int *sendcounts,
int *senddisps, MPI_Datatype sendtype,
void *recvbuf, int *recvcounts,