1 /* Copyright (c) 2013-2021. 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. */
6 #include "network_smpi.hpp"
7 #include "simgrid/kernel/routing/NetZoneImpl.hpp"
8 #include "simgrid/s4u/Engine.hpp"
9 #include "simgrid/sg_config.hpp"
10 #include "smpi_utils.hpp"
11 #include "src/kernel/EngineImpl.hpp"
12 #include "src/surf/surf_interface.hpp"
13 #include "surf/surf.hpp"
15 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(res_network);
21 /************************************************************************/
22 /* New model based on LV08 and experimental results of MPI ping-pongs */
23 /************************************************************************/
24 /* @Inproceedings{smpi_ipdps, */
25 /* author={Pierre-Nicolas Clauss and Mark Stillwell and Stéphane Genaud and Frédéric Suter and Henri Casanova and
27 /* title={Single Node On-Line Simulation of {MPI} Applications with SMPI}, */
28 /* booktitle={25th IEEE International Parallel and Distributed Processing Symposium (IPDPS'11)}, */
29 /* address={Anchorage (Alaska) USA}, */
33 void surf_network_model_init_SMPI()
35 auto net_model = std::make_shared<simgrid::kernel::resource::NetworkSmpiModel>("Network_SMPI");
36 simgrid::kernel::EngineImpl::get_instance()->add_model(net_model);
37 simgrid::s4u::Engine::get_instance()->get_netzone_root()->get_impl()->set_network_model(net_model);
39 simgrid::config::set_default<double>("network/weight-S", 8775);
46 void NetworkSmpiModel::check_lat_factor_cb()
48 if (not simgrid::config::is_default("smpi/lat-factor")) {
49 throw std::invalid_argument(
50 "NetworkModelIntf: Cannot mix network/latency-factor and callback configuration. Choose only one of them.");
54 void NetworkSmpiModel::check_bw_factor_cb()
56 if (not simgrid::config::is_default("smpi/bw-factor")) {
57 throw std::invalid_argument(
58 "NetworkModelIntf: Cannot mix network/bandwidth-factor and callback configuration. Choose only one of them.");
62 double NetworkSmpiModel::get_bandwidth_factor(double size)
64 static std::vector<s_smpi_factor_t> smpi_bw_factor;
65 if (smpi_bw_factor.empty())
66 smpi_bw_factor = smpi::utils::parse_factor(config::get_value<std::string>("smpi/bw-factor"));
69 for (auto const& fact : smpi_bw_factor) {
70 if (size <= fact.factor) {
71 XBT_DEBUG("%f <= %zu return %f", size, fact.factor, current);
74 current = fact.values.front();
76 XBT_DEBUG("%f > %zu return %f", size, smpi_bw_factor.back().factor, current);
81 double NetworkSmpiModel::get_latency_factor(double size)
83 static std::vector<s_smpi_factor_t> smpi_lat_factor;
84 if (smpi_lat_factor.empty())
85 smpi_lat_factor = smpi::utils::parse_factor(config::get_value<std::string>("smpi/lat-factor"));
88 for (auto const& fact : smpi_lat_factor) {
89 if (size <= fact.factor) {
90 XBT_DEBUG("%f <= %zu return %f", size, fact.factor, current);
93 current = fact.values.front();
95 XBT_DEBUG("%f > %zu return %f", size, smpi_lat_factor.back().factor, current);
99 } // namespace resource
100 } // namespace kernel
101 } // namespace simgrid