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 AUTOMATIC_COLL_BENCH(cat, ret, args, args2) \
14 ret _XBT_CONCAT2(cat, __automatic)(COLL_UNPAREN args) \
16 double time1, time2, time_min = DBL_MAX; \
17 int min_coll = -1, global_coll = -1; \
19 double buf_in, buf_out, max_min = DBL_MAX; \
20 auto desc = simgrid::smpi::colls::get_smpi_coll_description(_XBT_STRINGIFY(cat), i); \
21 while (not desc->name.empty()) { \
22 if (desc->name == "automatic") \
23 goto next_iteration; \
24 if (desc->name == "default") \
25 goto next_iteration; \
26 barrier__default(comm); \
27 if (TRACE_is_enabled()) { \
28 simgrid::instr::EventType* type = \
29 simgrid::instr::Container::get_root()->type_->by_name_or_create<simgrid::instr::EventType>( \
30 _XBT_STRINGIFY(cat)); \
32 std::string cont_name = std::string("rank-" + std::to_string(simgrid::s4u::this_actor::get_pid())); \
33 type->add_entity_value(desc->name, "1.0 1.0 1.0"); \
34 new simgrid::instr::NewEvent(SIMIX_get_clock(), simgrid::instr::Container::by_name(cont_name), type, \
35 type->get_entity_value(desc->name)); \
37 time1 = SIMIX_get_clock(); \
39 ((int(*) args)desc->coll) args2; \
40 } catch (std::exception & ex) { \
43 time2 = SIMIX_get_clock(); \
44 buf_out = time2 - time1; \
45 reduce__default((void*)&buf_out, (void*)&buf_in, 1, MPI_DOUBLE, MPI_MAX, 0, comm); \
46 if (time2 - time1 < time_min) { \
48 time_min = time2 - time1; \
50 if (comm->rank() == 0) { \
51 if (buf_in < max_min) { \
58 desc = simgrid::smpi::colls::get_smpi_coll_description(_XBT_STRINGIFY(cat), i); \
60 if (comm->rank() == 0) { \
61 XBT_WARN("For rank 0, the quickest was %s : %f , but global was %s : %f at max", \
62 simgrid::smpi::colls::get_smpi_coll_description(_XBT_STRINGIFY(cat), min_coll)->name.c_str(), time_min, \
63 simgrid::smpi::colls::get_smpi_coll_description(_XBT_STRINGIFY(cat), global_coll)->name.c_str(), \
66 XBT_WARN("The quickest " _XBT_STRINGIFY(cat) " was %s on rank %d and took %f", \
67 simgrid::smpi::colls::get_smpi_coll_description(_XBT_STRINGIFY(cat), min_coll)->name.c_str(), \
68 comm->rank(), time_min); \
69 return (min_coll != -1) ? MPI_SUCCESS : MPI_ERR_INTERN; \
75 COLL_APPLY(AUTOMATIC_COLL_BENCH, COLL_ALLGATHERV_SIG, (send_buff, send_count, send_type, recv_buff, recv_count, recv_disps, recv_type, comm))
76 COLL_APPLY(AUTOMATIC_COLL_BENCH, COLL_ALLREDUCE_SIG, (sbuf, rbuf, rcount, dtype, op, comm))
77 COLL_APPLY(AUTOMATIC_COLL_BENCH, COLL_GATHER_SIG, (send_buff, send_count, send_type, recv_buff, recv_count, recv_type, root, comm))
78 COLL_APPLY(AUTOMATIC_COLL_BENCH, COLL_ALLGATHER_SIG, (send_buff,send_count,send_type,recv_buff,recv_count,recv_type,comm))
79 COLL_APPLY(AUTOMATIC_COLL_BENCH, COLL_ALLTOALL_SIG,(send_buff, send_count, send_type, recv_buff, recv_count, recv_type,comm))
80 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))
81 COLL_APPLY(AUTOMATIC_COLL_BENCH, COLL_BCAST_SIG , (buf, count, datatype, root, comm))
82 COLL_APPLY(AUTOMATIC_COLL_BENCH, COLL_REDUCE_SIG,(buf,rbuf, count, datatype, op, root, comm))
83 COLL_APPLY(AUTOMATIC_COLL_BENCH, COLL_REDUCE_SCATTER_SIG ,(sbuf,rbuf, rcounts,dtype,op,comm))
84 COLL_APPLY(AUTOMATIC_COLL_BENCH, COLL_SCATTER_SIG ,(sendbuf, sendcount, sendtype,recvbuf, recvcount, recvtype,root, comm))
85 COLL_APPLY(AUTOMATIC_COLL_BENCH, COLL_BARRIER_SIG,(comm))