1 /* Copyright (c) 2013-2017. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
10 #include "colls_private.hpp"
11 #include "smpi_process.hpp"
13 //attempt to do a quick autotuning version of the collective,
14 #define TRACE_AUTO_COLL(cat) \
15 if (TRACE_is_enabled()) { \
16 simgrid::instr::EventType* type = simgrid::instr::Container::getRoot()->type_->getOrCreateEventType(#cat); \
18 std::string cont_name = std::string("rank-" + std::to_string(simgrid::s4u::Actor::self()->getPid())); \
19 type->addEntityValue(Colls::mpi_coll_##cat##_description[i].name, "1.0 1.0 1.0"); \
20 new simgrid::instr::NewEvent(SIMIX_get_clock(), simgrid::instr::Container::byName(cont_name), type, \
21 type->getEntityValue(Colls::mpi_coll_##cat##_description[i].name)); \
24 #define AUTOMATIC_COLL_BENCH(cat, ret, args, args2) \
25 ret Coll_##cat##_automatic::cat(COLL_UNPAREN args) \
27 double time1, time2, time_min = DBL_MAX; \
28 int min_coll = -1, global_coll = -1; \
30 double buf_in, buf_out, max_min = DBL_MAX; \
31 for (i = 0; Colls::mpi_coll_##cat##_description[i].name; i++) { \
32 if (not strcmp(Colls::mpi_coll_##cat##_description[i].name, "automatic")) \
34 if (not strcmp(Colls::mpi_coll_##cat##_description[i].name, "default")) \
36 Coll_barrier_default::barrier(comm); \
37 TRACE_AUTO_COLL(cat) \
38 time1 = SIMIX_get_clock(); \
40 ((int(*) args)Colls::mpi_coll_##cat##_description[i].coll) args2; \
41 } catch (std::exception & ex) { \
44 time2 = SIMIX_get_clock(); \
45 buf_out = time2 - time1; \
46 Coll_reduce_default::reduce((void*)&buf_out, (void*)&buf_in, 1, MPI_DOUBLE, MPI_MAX, 0, comm); \
47 if (time2 - time1 < time_min) { \
49 time_min = time2 - time1; \
51 if (comm->rank() == 0) { \
52 if (buf_in < max_min) { \
58 if (comm->rank() == 0) { \
59 XBT_WARN("For rank 0, the quickest was %s : %f , but global was %s : %f at max", \
60 Colls::mpi_coll_##cat##_description[min_coll].name, time_min, \
61 Colls::mpi_coll_##cat##_description[global_coll].name, max_min); \
63 XBT_WARN("The quickest %s was %s on rank %d and took %f", #cat, \
64 Colls::mpi_coll_##cat##_description[min_coll].name, comm->rank(), time_min); \
65 return (min_coll != -1) ? MPI_SUCCESS : MPI_ERR_INTERN; \
71 COLL_APPLY(AUTOMATIC_COLL_BENCH, COLL_ALLGATHERV_SIG, (send_buff, send_count, send_type, recv_buff, recv_count, recv_disps, recv_type, comm));
72 COLL_APPLY(AUTOMATIC_COLL_BENCH, COLL_ALLREDUCE_SIG, (sbuf, rbuf, rcount, dtype, op, comm));
73 COLL_APPLY(AUTOMATIC_COLL_BENCH, COLL_GATHER_SIG, (send_buff, send_count, send_type, recv_buff, recv_count, recv_type, root, comm));
74 COLL_APPLY(AUTOMATIC_COLL_BENCH, COLL_ALLGATHER_SIG, (send_buff,send_count,send_type,recv_buff,recv_count,recv_type,comm));
75 COLL_APPLY(AUTOMATIC_COLL_BENCH, COLL_ALLTOALL_SIG,(send_buff, send_count, send_type, recv_buff, recv_count, recv_type,comm));
76 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));
77 COLL_APPLY(AUTOMATIC_COLL_BENCH, COLL_BCAST_SIG , (buf, count, datatype, root, comm));
78 COLL_APPLY(AUTOMATIC_COLL_BENCH, COLL_REDUCE_SIG,(buf,rbuf, count, datatype, op, root, comm));
79 COLL_APPLY(AUTOMATIC_COLL_BENCH, COLL_REDUCE_SCATTER_SIG ,(sbuf,rbuf, rcounts,dtype,op,comm));
80 COLL_APPLY(AUTOMATIC_COLL_BENCH, COLL_SCATTER_SIG ,(sendbuf, sendcount, sendtype,recvbuf, recvcount, recvtype,root, comm));
81 COLL_APPLY(AUTOMATIC_COLL_BENCH, COLL_BARRIER_SIG,(comm));