1 /* Copyright (c) 2013-2019. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
9 #include "colls_private.hpp"
10 #include "src/smpi/include/smpi_actor.hpp"
12 //attempt to do a quick autotuning version of the collective,
13 #define TRACE_AUTO_COLL(cat) \
14 if (TRACE_is_enabled()) { \
15 simgrid::instr::EventType* type = \
16 simgrid::instr::Container::get_root()->type_->by_name_or_create<simgrid::instr::EventType>( \
17 _XBT_STRINGIFY(cat)); \
19 std::string cont_name = std::string("rank-" + std::to_string(simgrid::s4u::this_actor::get_pid())); \
20 type->add_entity_value(Colls::_XBT_CONCAT3(mpi_coll_, cat, _description)[i].name, "1.0 1.0 1.0"); \
21 new simgrid::instr::NewEvent(SIMIX_get_clock(), simgrid::instr::Container::by_name(cont_name), type, \
22 type->get_entity_value(Colls::_XBT_CONCAT3(mpi_coll_, cat, _description)[i].name)); \
25 #define AUTOMATIC_COLL_BENCH(cat, ret, args, args2) \
26 ret _XBT_CONCAT3(Coll_, cat, _automatic)::cat(COLL_UNPAREN args) \
28 double time1, time2, time_min = DBL_MAX; \
29 int min_coll = -1, global_coll = -1; \
31 double buf_in, buf_out, max_min = DBL_MAX; \
32 for (i = 0; not Colls::_XBT_CONCAT3(mpi_coll_, cat, _description)[i].name.empty(); i++) { \
33 if (Colls::_XBT_CONCAT3(mpi_coll_, cat, _description)[i].name == "automatic") \
35 if (Colls::_XBT_CONCAT3(mpi_coll_, cat, _description)[i].name == "default") \
37 Coll_barrier_default::barrier(comm); \
38 TRACE_AUTO_COLL(cat) \
39 time1 = SIMIX_get_clock(); \
41 ((int(*) args)Colls::_XBT_CONCAT3(mpi_coll_, cat, _description)[i].coll) args2; \
42 } catch (std::exception & ex) { \
45 time2 = SIMIX_get_clock(); \
46 buf_out = time2 - time1; \
47 Coll_reduce_default::reduce((void*)&buf_out, (void*)&buf_in, 1, MPI_DOUBLE, MPI_MAX, 0, comm); \
48 if (time2 - time1 < time_min) { \
50 time_min = time2 - time1; \
52 if (comm->rank() == 0) { \
53 if (buf_in < max_min) { \
59 if (comm->rank() == 0) { \
60 XBT_WARN("For rank 0, the quickest was %s : %f , but global was %s : %f at max", \
61 Colls::_XBT_CONCAT3(mpi_coll_, cat, _description)[min_coll].name.c_str(), time_min, \
62 Colls::_XBT_CONCAT3(mpi_coll_, cat, _description)[global_coll].name.c_str(), max_min); \
64 XBT_WARN("The quickest " _XBT_STRINGIFY(cat) " was %s on rank %d and took %f", \
65 Colls::_XBT_CONCAT3(mpi_coll_, cat, _description)[min_coll].name.c_str(), comm->rank(), time_min); \
66 return (min_coll != -1) ? MPI_SUCCESS : MPI_ERR_INTERN; \
72 COLL_APPLY(AUTOMATIC_COLL_BENCH, COLL_ALLGATHERV_SIG, (send_buff, send_count, send_type, recv_buff, recv_count, recv_disps, recv_type, comm));
73 COLL_APPLY(AUTOMATIC_COLL_BENCH, COLL_ALLREDUCE_SIG, (sbuf, rbuf, rcount, dtype, op, comm));
74 COLL_APPLY(AUTOMATIC_COLL_BENCH, COLL_GATHER_SIG, (send_buff, send_count, send_type, recv_buff, recv_count, recv_type, root, comm));
75 COLL_APPLY(AUTOMATIC_COLL_BENCH, COLL_ALLGATHER_SIG, (send_buff,send_count,send_type,recv_buff,recv_count,recv_type,comm));
76 COLL_APPLY(AUTOMATIC_COLL_BENCH, COLL_ALLTOALL_SIG,(send_buff, send_count, send_type, recv_buff, recv_count, recv_type,comm));
77 COLL_APPLY(AUTOMATIC_COLL_BENCH, COLL_ALLTOALLV_SIG, (send_buff, send_counts, send_disps, send_type, recv_buff, recv_counts, recv_disps, recv_type, comm));
78 COLL_APPLY(AUTOMATIC_COLL_BENCH, COLL_BCAST_SIG , (buf, count, datatype, root, comm));
79 COLL_APPLY(AUTOMATIC_COLL_BENCH, COLL_REDUCE_SIG,(buf,rbuf, count, datatype, op, root, comm));
80 COLL_APPLY(AUTOMATIC_COLL_BENCH, COLL_REDUCE_SCATTER_SIG ,(sbuf,rbuf, rcounts,dtype,op,comm));
81 COLL_APPLY(AUTOMATIC_COLL_BENCH, COLL_SCATTER_SIG ,(sendbuf, sendcount, sendtype,recvbuf, recvcount, recvtype,root, comm));
82 COLL_APPLY(AUTOMATIC_COLL_BENCH, COLL_BARRIER_SIG,(comm));