1 /* Copyright (c) 2013-2022. 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 <simgrid/kernel/routing/NetPoint.hpp>
7 #include <simgrid/kernel/routing/NetZoneImpl.hpp>
8 #include <simgrid/s4u/Engine.hpp>
10 #include "simgrid/sg_config.hpp"
11 #include "src/kernel/EngineImpl.hpp"
12 #include "src/kernel/resource/NetworkModel.hpp"
13 #include "src/surf/host_clm03.hpp"
15 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(res_host);
17 void surf_host_model_init_current_default()
19 simgrid::config::set_default<bool>("network/crosstraffic", true);
20 auto host_model = std::make_shared<simgrid::kernel::resource::HostCLM03Model>("Host_CLM03");
21 auto* engine = simgrid::kernel::EngineImpl::get_instance();
22 engine->add_model(host_model);
23 engine->get_netzone_root()->set_host_model(host_model);
24 surf_cpu_model_init_Cas01();
25 surf_network_model_init_LegrandVelho();
28 void surf_host_model_init_compound()
30 auto host_model = std::make_shared<simgrid::kernel::resource::HostCLM03Model>("Host_CLM03");
31 auto* engine = simgrid::kernel::EngineImpl::get_instance();
32 engine->add_model(host_model);
33 engine->get_netzone_root()->set_host_model(host_model);
36 namespace simgrid::kernel::resource {
38 double HostCLM03Model::next_occurring_event(double /*now*/)
40 /* nothing specific to be done here
41 * EngineImpl::solve already calls all the models next_occurring_event properly */
45 void HostCLM03Model::update_actions_state(double /*now*/, double /*delta*/)
47 /* I've no action to update */
50 /* Helper function for executeParallelTask */
51 static inline double has_cost(const double* array, size_t pos)
58 Action* HostCLM03Model::execute_parallel(const std::vector<s4u::Host*>& host_list, const double* flops_amount,
59 const double* bytes_amount, double rate)
61 Action* action = nullptr;
62 auto net_model = host_list[0]->get_netpoint()->get_englobing_zone()->get_network_model();
63 if ((host_list.size() == 1) && (has_cost(bytes_amount, 0) <= 0) && (has_cost(flops_amount, 0) > 0)) {
64 action = host_list[0]->get_cpu()->execution_start(flops_amount[0], rate);
65 } else if ((host_list.size() == 1) && (has_cost(flops_amount, 0) <= 0)) {
66 action = net_model->communicate(host_list[0], host_list[0], bytes_amount[0], rate);
67 } else if ((host_list.size() == 2) && (has_cost(flops_amount, 0) <= 0) && (has_cost(flops_amount, 1) <= 0)) {
71 for (size_t i = 0; i < host_list.size() * host_list.size(); i++) {
72 if (has_cost(bytes_amount, i) > 0.0) {
74 value = has_cost(bytes_amount, i);
78 action = net_model->communicate(host_list[0], host_list[1], value, rate);
80 xbt_die("Cannot have a communication with no flop to exchange in this model. You should consider using the "
83 xbt_die("Cannot have a communication that is not a simple point-to-point in this model. You should consider "
84 "using the ptask model");
88 "This model only accepts one of the following. You should consider using the ptask model for the other cases.\n"
89 " - execution with one host only and no communication\n"
90 " - Self-comms with one host only\n"
91 " - Communications with two hosts and no computation");
96 Action* HostCLM03Model::execute_thread(const s4u::Host* host, double flops_amount, int thread_count)
98 auto cpu = host->get_cpu();
99 /* Create a single action whose cost is thread_count * flops_amount and that requests thread_count cores. */
100 return cpu->execution_start(thread_count * flops_amount, thread_count, -1);
103 } // namespace simgrid::kernel::resource