1 /* Copyright (c) 2007-2023. 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/plugins/load.h"
7 #include "simgrid/s4u.hpp"
9 XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_test, "Messages specific for this s4u example");
10 namespace sg4 = simgrid::s4u;
12 static void sender(const std::string& mailbox, uint64_t msg_size)
14 auto mbox = sg4::Mailbox::by_name(mailbox);
15 static int payload = 42;
16 mbox->put(&payload, msg_size);
19 static void receiver(const std::string& mailbox)
21 auto mbox = sg4::Mailbox::by_name(mailbox);
25 static void run_transfer(sg4::Host* src_host, sg4::Host* dst_host, const std::string& mailbox, unsigned long msg_size)
27 XBT_INFO("Launching the transfer of %lu bytes", msg_size);
28 sg4::Actor::create("sender", src_host, sender, mailbox, msg_size);
29 sg4::Actor::create("receiver", dst_host, receiver, mailbox);
32 static void execute_load_test()
34 auto host0 = sg4::Host::by_name("node-0.simgrid.org");
35 auto host1 = sg4::Host::by_name("node-1.simgrid.org");
37 sg4::this_actor::sleep_for(1);
38 run_transfer(host0, host1, "1", 1000 * 1000 * 1000);
40 sg4::this_actor::sleep_for(10);
41 run_transfer(host0, host1, "2", 1000 * 1000 * 1000);
42 sg4::this_actor::sleep_for(3);
43 run_transfer(host0, host1, "3", 1000 * 1000 * 1000);
46 static void show_link_load(const std::string& link_name, const sg4::Link* link)
48 XBT_INFO("%s link load (cum, avg, min, max): (%g, %g, %g, %g)", link_name.c_str(), sg_link_get_cum_load(link),
49 sg_link_get_avg_load(link), sg_link_get_min_instantaneous_load(link),
50 sg_link_get_max_instantaneous_load(link));
55 auto link_backbone = sg4::Link::by_name("cluster0_backbone");
56 auto link_host0 = sg4::Link::by_name("cluster0_link_0_UP");
57 auto link_host1 = sg4::Link::by_name("cluster0_link_1_DOWN");
59 XBT_INFO("Tracking desired links");
60 sg_link_load_track(link_backbone);
61 sg_link_load_track(link_host0);
62 sg_link_load_track(link_host1);
64 show_link_load("Backbone", link_backbone);
65 while (sg4::Engine::get_clock() < 5) {
66 sg4::this_actor::sleep_for(1);
67 show_link_load("Backbone", link_backbone);
70 XBT_INFO("Untracking the backbone link");
71 sg_link_load_untrack(link_backbone);
73 show_link_load("Host0_UP", link_host0);
74 show_link_load("Host1_UP", link_host1);
76 XBT_INFO("Now resetting and probing host links each second.");
78 while (sg4::Engine::get_clock() < 29) {
79 sg_link_load_reset(link_host0);
80 sg_link_load_reset(link_host1);
82 sg4::this_actor::sleep_for(1);
84 show_link_load("Host0_UP", link_host0);
85 show_link_load("Host1_UP", link_host1);
89 int main(int argc, char* argv[])
91 sg4::Engine e(&argc, argv);
92 sg_link_load_plugin_init();
94 xbt_assert(argc == 2, "Usage: %s platform_file\n\tExample: %s ../platforms/energy_platform.xml\n", argv[0], argv[0]);
95 e.load_platform(argv[1]);
97 sg4::Actor::create("load_test", e.host_by_name("node-42.simgrid.org"), execute_load_test);
98 sg4::Actor::create("monitor", e.host_by_name("node-51.simgrid.org"), monitor);
102 XBT_INFO("Total simulation time: %.2f", sg4::Engine::get_clock());