+ int retval;
+ int rank = comm != MPI_COMM_NULL ? smpi_comm_rank(comm) : -1;
+
+ smpi_bench_end(rank, "Barrier");
+#ifdef HAVE_TRACING
+ TRACE_smpi_collective_in(rank, -1, __FUNCTION__);
+#endif
+ if (comm == MPI_COMM_NULL) {
+ retval = MPI_ERR_COMM;
+ } else {
+ smpi_mpi_barrier(comm);
+ retval = MPI_SUCCESS;
+ }
+#ifdef HAVE_TRACING
+ TRACE_smpi_collective_out(rank, -1, __FUNCTION__);
+#endif
+ smpi_bench_begin(rank, "Barrier");
+ return retval;
+}
+
+int MPI_Gather(void *sendbuf, int sendcount, MPI_Datatype sendtype,
+ void *recvbuf, int recvcount, MPI_Datatype recvtype,
+ int root, MPI_Comm comm)
+{
+ int retval;
+ int rank = comm != MPI_COMM_NULL ? smpi_comm_rank(comm) : -1;
+
+ smpi_bench_end(rank, "Gather");
+#ifdef HAVE_TRACING
+ int root_traced = smpi_group_rank(smpi_comm_group(comm), root);
+ TRACE_smpi_collective_in(rank, root_traced, __FUNCTION__);
+#endif
+ if (comm == MPI_COMM_NULL) {
+ retval = MPI_ERR_COMM;
+ } else if (sendtype == MPI_DATATYPE_NULL
+ || recvtype == MPI_DATATYPE_NULL) {
+ retval = MPI_ERR_TYPE;
+ } else {
+ smpi_mpi_gather(sendbuf, sendcount, sendtype, recvbuf, recvcount,
+ recvtype, root, comm);
+ retval = MPI_SUCCESS;
+ }
+#ifdef HAVE_TRACING
+ TRACE_smpi_collective_out(rank, root_traced, __FUNCTION__);
+#endif
+ smpi_bench_begin(rank, "Gather");
+ return retval;
+}
+
+int MPI_Gatherv(void *sendbuf, int sendcount, MPI_Datatype sendtype,
+ void *recvbuf, int *recvcounts, int *displs,
+ MPI_Datatype recvtype, int root, MPI_Comm comm)
+{
+ int retval;
+ int rank = comm != MPI_COMM_NULL ? smpi_comm_rank(comm) : -1;
+
+ smpi_bench_end(rank, "Gatherv");
+#ifdef HAVE_TRACING
+ int root_traced = smpi_group_rank(smpi_comm_group(comm), root);
+ TRACE_smpi_collective_in(rank, root_traced, __FUNCTION__);
+#endif
+ if (comm == MPI_COMM_NULL) {
+ retval = MPI_ERR_COMM;
+ } else if (sendtype == MPI_DATATYPE_NULL
+ || recvtype == MPI_DATATYPE_NULL) {
+ retval = MPI_ERR_TYPE;
+ } else if (recvcounts == NULL || displs == NULL) {
+ retval = MPI_ERR_ARG;
+ } else {
+ smpi_mpi_gatherv(sendbuf, sendcount, sendtype, recvbuf, recvcounts,
+ displs, recvtype, root, comm);
+ retval = MPI_SUCCESS;
+ }
+#ifdef HAVE_TRACING
+ TRACE_smpi_collective_out(rank, root_traced, __FUNCTION__);
+#endif
+ smpi_bench_begin(rank, "Gatherv");
+ return retval;
+}
+
+int MPI_Allgather(void *sendbuf, int sendcount, MPI_Datatype sendtype,
+ void *recvbuf, int recvcount, MPI_Datatype recvtype,
+ MPI_Comm comm)
+{
+ int retval;
+ int rank = comm != MPI_COMM_NULL ? smpi_comm_rank(comm) : -1;
+
+ smpi_bench_end(rank, "Allgather");
+#ifdef HAVE_TRACING
+ TRACE_smpi_collective_in(rank, -1, __FUNCTION__);
+#endif
+ if (comm == MPI_COMM_NULL) {
+ retval = MPI_ERR_COMM;
+ } else if (sendtype == MPI_DATATYPE_NULL
+ || recvtype == MPI_DATATYPE_NULL) {
+ retval = MPI_ERR_TYPE;
+ } else {
+ smpi_mpi_allgather(sendbuf, sendcount, sendtype, recvbuf, recvcount,
+ recvtype, comm);
+ retval = MPI_SUCCESS;
+ }
+#ifdef HAVE_TRACING
+ TRACE_smpi_collective_out(rank, -1, __FUNCTION__);
+#endif
+ smpi_bench_begin(rank, "Allgather");
+ return retval;
+}
+
+int MPI_Allgatherv(void *sendbuf, int sendcount, MPI_Datatype sendtype,
+ void *recvbuf, int *recvcounts, int *displs,
+ MPI_Datatype recvtype, MPI_Comm comm)
+{
+ int retval;
+ int rank = comm != MPI_COMM_NULL ? smpi_comm_rank(comm) : -1;
+
+ smpi_bench_end(rank, "Allgatherv");
+#ifdef HAVE_TRACING
+ TRACE_smpi_collective_in(rank, -1, __FUNCTION__);
+#endif
+ if (comm == MPI_COMM_NULL) {
+ retval = MPI_ERR_COMM;
+ } else if (sendtype == MPI_DATATYPE_NULL
+ || recvtype == MPI_DATATYPE_NULL) {
+ retval = MPI_ERR_TYPE;
+ } else if (recvcounts == NULL || displs == NULL) {
+ retval = MPI_ERR_ARG;
+ } else {
+ smpi_mpi_allgatherv(sendbuf, sendcount, sendtype, recvbuf, recvcounts,
+ displs, recvtype, comm);
+ retval = MPI_SUCCESS;
+ }
+#ifdef HAVE_TRACING
+ TRACE_smpi_collective_out(rank, -1, __FUNCTION__);
+#endif
+ smpi_bench_begin(rank, "Allgatherv");
+ return retval;
+}
+
+int MPI_Scatter(void *sendbuf, int sendcount, MPI_Datatype sendtype,
+ void *recvbuf, int recvcount, MPI_Datatype recvtype,
+ int root, MPI_Comm comm)
+{
+ int retval;
+ int rank = comm != MPI_COMM_NULL ? smpi_comm_rank(comm) : -1;
+
+ smpi_bench_end(rank, "Scatter");
+#ifdef HAVE_TRACING
+ int root_traced = smpi_group_rank(smpi_comm_group(comm), root);
+ TRACE_smpi_collective_in(rank, root_traced, __FUNCTION__);
+#endif
+ if (comm == MPI_COMM_NULL) {
+ retval = MPI_ERR_COMM;
+ } else if (sendtype == MPI_DATATYPE_NULL
+ || recvtype == MPI_DATATYPE_NULL) {
+ retval = MPI_ERR_TYPE;
+ } else {
+ smpi_mpi_scatter(sendbuf, sendcount, sendtype, recvbuf, recvcount,
+ recvtype, root, comm);
+ retval = MPI_SUCCESS;
+ }
+#ifdef HAVE_TRACING
+ TRACE_smpi_collective_out(rank, root_traced, __FUNCTION__);
+#endif
+ smpi_bench_begin(rank, "Scatter");
+ return retval;
+}
+
+int MPI_Scatterv(void *sendbuf, int *sendcounts, int *displs,
+ MPI_Datatype sendtype, void *recvbuf, int recvcount,
+ MPI_Datatype recvtype, int root, MPI_Comm comm)
+{
+ int retval;
+ int rank = comm != MPI_COMM_NULL ? smpi_comm_rank(comm) : -1;
+
+ smpi_bench_end(rank, "Scatterv");
+#ifdef HAVE_TRACING
+ int root_traced = smpi_group_rank(smpi_comm_group(comm), root);
+ TRACE_smpi_collective_in(rank, root_traced, __FUNCTION__);
+#endif
+ if (comm == MPI_COMM_NULL) {
+ retval = MPI_ERR_COMM;
+ } else if (sendtype == MPI_DATATYPE_NULL
+ || recvtype == MPI_DATATYPE_NULL) {
+ retval = MPI_ERR_TYPE;
+ } else if (sendcounts == NULL || displs == NULL) {
+ retval = MPI_ERR_ARG;
+ } else {
+ smpi_mpi_scatterv(sendbuf, sendcounts, displs, sendtype, recvbuf,
+ recvcount, recvtype, root, comm);
+ retval = MPI_SUCCESS;
+ }
+#ifdef HAVE_TRACING
+ TRACE_smpi_collective_out(rank, root_traced, __FUNCTION__);
+#endif
+ smpi_bench_begin(rank, "Scatterv");
+ return retval;
+}
+
+int MPI_Reduce(void *sendbuf, void *recvbuf, int count,
+ MPI_Datatype datatype, MPI_Op op, int root, MPI_Comm comm)
+{
+ int retval;
+ int rank = comm != MPI_COMM_NULL ? smpi_comm_rank(comm) : -1;
+
+ smpi_bench_end(rank, "Reduce");
+#ifdef HAVE_TRACING
+ int root_traced = smpi_group_rank(smpi_comm_group(comm), root);
+ TRACE_smpi_collective_in(rank, root_traced, __FUNCTION__);
+#endif
+ if (comm == MPI_COMM_NULL) {
+ retval = MPI_ERR_COMM;
+ } else if (datatype == MPI_DATATYPE_NULL || op == MPI_OP_NULL) {
+ retval = MPI_ERR_ARG;
+ } else {
+ smpi_mpi_reduce(sendbuf, recvbuf, count, datatype, op, root, comm);
+ retval = MPI_SUCCESS;
+ }
+#ifdef HAVE_TRACING
+ TRACE_smpi_collective_out(rank, root_traced, __FUNCTION__);
+#endif
+ smpi_bench_begin(rank, "Reduce");
+ return retval;
+}
+
+int MPI_Allreduce(void *sendbuf, void *recvbuf, int count,
+ MPI_Datatype datatype, MPI_Op op, MPI_Comm comm)
+{
+ int retval;
+ int rank = comm != MPI_COMM_NULL ? smpi_comm_rank(comm) : -1;
+
+ smpi_bench_end(rank, "Allreduce");
+#ifdef HAVE_TRACING
+ TRACE_smpi_collective_in(rank, -1, __FUNCTION__);
+#endif
+ if (comm == MPI_COMM_NULL) {
+ retval = MPI_ERR_COMM;
+ } else if (datatype == MPI_DATATYPE_NULL) {
+ retval = MPI_ERR_TYPE;
+ } else if (op == MPI_OP_NULL) {
+ retval = MPI_ERR_OP;
+ } else {
+ smpi_mpi_allreduce(sendbuf, recvbuf, count, datatype, op, comm);
+ retval = MPI_SUCCESS;
+ }
+#ifdef HAVE_TRACING
+ TRACE_smpi_collective_out(rank, -1, __FUNCTION__);
+#endif
+ smpi_bench_begin(rank, "Allreduce");
+ return retval;
+}
+
+int MPI_Scan(void *sendbuf, void *recvbuf, int count,
+ MPI_Datatype datatype, MPI_Op op, MPI_Comm comm)
+{
+ int retval;
+ int rank = comm != MPI_COMM_NULL ? smpi_comm_rank(comm) : -1;
+
+ smpi_bench_end(rank, "Scan");
+#ifdef HAVE_TRACING
+ TRACE_smpi_collective_in(rank, -1, __FUNCTION__);
+#endif
+ if (comm == MPI_COMM_NULL) {
+ retval = MPI_ERR_COMM;
+ } else if (datatype == MPI_DATATYPE_NULL) {
+ retval = MPI_ERR_TYPE;
+ } else if (op == MPI_OP_NULL) {
+ retval = MPI_ERR_OP;
+ } else {
+ smpi_mpi_scan(sendbuf, recvbuf, count, datatype, op, comm);
+ retval = MPI_SUCCESS;
+ }
+#ifdef HAVE_TRACING
+ TRACE_smpi_collective_out(rank, -1, __FUNCTION__);
+#endif
+ smpi_bench_begin(rank, "Scan");
+ return retval;
+}
+
+int MPI_Reduce_scatter(void *sendbuf, void *recvbuf, int *recvcounts,
+ MPI_Datatype datatype, MPI_Op op, MPI_Comm comm)
+{
+ int retval, i, size, count;
+ int *displs;
+ int rank = comm != MPI_COMM_NULL ? smpi_comm_rank(comm) : -1;
+
+ smpi_bench_end(rank, "Reduce_scatter");
+#ifdef HAVE_TRACING
+ TRACE_smpi_collective_in(rank, -1, __FUNCTION__);
+#endif
+ if (comm == MPI_COMM_NULL) {
+ retval = MPI_ERR_COMM;
+ } else if (datatype == MPI_DATATYPE_NULL) {
+ retval = MPI_ERR_TYPE;
+ } else if (op == MPI_OP_NULL) {
+ retval = MPI_ERR_OP;
+ } else if (recvcounts == NULL) {
+ retval = MPI_ERR_ARG;
+ } else {
+ /* arbitrarily choose root as rank 0 */
+ /* TODO: faster direct implementation ? */
+ size = smpi_comm_size(comm);
+ count = 0;
+ displs = xbt_new(int, size);
+ for (i = 0; i < size; i++) {
+ count += recvcounts[i];
+ displs[i] = 0;
+ }
+ smpi_mpi_reduce(sendbuf, recvbuf, count, datatype, op, 0, comm);
+ smpi_mpi_scatterv(recvbuf, recvcounts, displs, datatype, recvbuf,
+ recvcounts[rank], datatype, 0, comm);
+ xbt_free(displs);
+ retval = MPI_SUCCESS;
+ }
+#ifdef HAVE_TRACING
+ TRACE_smpi_collective_out(rank, -1, __FUNCTION__);
+#endif
+ smpi_bench_begin(rank, "Reduce_scatter");
+ return retval;
+}
+
+int MPI_Alltoall(void *sendbuf, int sendcount, MPI_Datatype sendtype,
+ void *recvbuf, int recvcount, MPI_Datatype recvtype,
+ MPI_Comm comm)
+{
+ int retval, size, sendsize;
+ int rank = comm != MPI_COMM_NULL ? smpi_comm_rank(comm) : -1;
+
+ smpi_bench_end(rank, "Alltoall");
+#ifdef HAVE_TRACING
+ TRACE_smpi_collective_in(rank, -1, __FUNCTION__);
+#endif
+ if (comm == MPI_COMM_NULL) {
+ retval = MPI_ERR_COMM;
+ } else if (sendtype == MPI_DATATYPE_NULL
+ || recvtype == MPI_DATATYPE_NULL) {
+ retval = MPI_ERR_TYPE;
+ } else {
+ size = smpi_comm_size(comm);
+ sendsize = smpi_datatype_size(sendtype) * sendcount;
+ if (sendsize < 200 && size > 12) {
+ retval =
+ smpi_coll_tuned_alltoall_bruck(sendbuf, sendcount, sendtype,
+ recvbuf, recvcount, recvtype,
+ comm);
+ } else if (sendsize < 3000) {
+ retval =
+ smpi_coll_tuned_alltoall_basic_linear(sendbuf, sendcount,
+ sendtype, recvbuf,
+ recvcount, recvtype, comm);
+ } else {
+ retval =
+ smpi_coll_tuned_alltoall_pairwise(sendbuf, sendcount, sendtype,
+ recvbuf, recvcount, recvtype,
+ comm);
+ }
+ }
+#ifdef HAVE_TRACING
+ TRACE_smpi_collective_out(rank, -1, __FUNCTION__);
+#endif
+ smpi_bench_begin(rank, "Alltoall");
+ return retval;
+}
+
+int MPI_Alltoallv(void *sendbuf, int *sendcounts, int *senddisps,
+ MPI_Datatype sendtype, void *recvbuf, int *recvcounts,
+ int *recvdisps, MPI_Datatype recvtype, MPI_Comm comm)
+{
+ int retval;
+ int rank = comm != MPI_COMM_NULL ? smpi_comm_rank(comm) : -1;
+
+ smpi_bench_end(rank, "Alltoallv");
+#ifdef HAVE_TRACING
+ TRACE_smpi_collective_in(rank, -1, __FUNCTION__);
+#endif
+ if (comm == MPI_COMM_NULL) {
+ retval = MPI_ERR_COMM;
+ } else if (sendtype == MPI_DATATYPE_NULL
+ || recvtype == MPI_DATATYPE_NULL) {
+ retval = MPI_ERR_TYPE;
+ } else if (sendcounts == NULL || senddisps == NULL || recvcounts == NULL
+ || recvdisps == NULL) {
+ retval = MPI_ERR_ARG;
+ } else {
+ retval =
+ smpi_coll_basic_alltoallv(sendbuf, sendcounts, senddisps, sendtype,
+ recvbuf, recvcounts, recvdisps, recvtype,
+ comm);
+ }
+#ifdef HAVE_TRACING
+ TRACE_smpi_collective_out(rank, -1, __FUNCTION__);
+#endif
+ smpi_bench_begin(rank, "Alltoallv");
+ return retval;
+}
+
+
+int MPI_Get_processor_name(char *name, int *resultlen)
+{
+ int retval = MPI_SUCCESS;
+
+ smpi_bench_end(-1, NULL);
+ strncpy(name, SIMIX_host_get_name(SIMIX_host_self()),
+ MPI_MAX_PROCESSOR_NAME - 1);
+ *resultlen =
+ strlen(name) >
+ MPI_MAX_PROCESSOR_NAME ? MPI_MAX_PROCESSOR_NAME : strlen(name);
+
+ smpi_bench_begin(-1, NULL);
+ return retval;
+}
+
+int MPI_Get_count(MPI_Status * status, MPI_Datatype datatype, int *count)
+{
+ int retval = MPI_SUCCESS;
+ size_t size;
+
+ smpi_bench_end(-1, NULL);
+ if (status == NULL || count == NULL) {
+ retval = MPI_ERR_ARG;
+ } else if (datatype == MPI_DATATYPE_NULL) {
+ retval = MPI_ERR_TYPE;
+ } else {
+ size = smpi_datatype_size(datatype);
+ if (size == 0) {
+ *count = 0;
+ } else if (status->count % size != 0) {
+ retval = MPI_UNDEFINED;
+ } else {
+ *count = smpi_mpi_get_count(status, datatype);
+ }
+ }
+ smpi_bench_begin(-1, NULL);
+ return retval;