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/* Copyright (c) 2007-2025. The SimGrid Team. All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
#include "simgrid/s4u.hpp"
#include "simgrid/plugins/live_migration.h"
#include "simgrid/s4u/VirtualMachine.hpp"
XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_test, "Messages specific for this s4u example");
namespace sg4 = simgrid::s4u;
static void computation_fun()
{
double clock_sta = sg4::Engine::get_clock();
sg4::this_actor::execute(1000000);
double clock_end = sg4::Engine::get_clock();
XBT_INFO("%s:%s executed %g", sg4::this_actor::get_host()->get_cname(), sg4::this_actor::get_cname(),
clock_end - clock_sta);
}
static void launch_computation_worker(sg4::Engine* e, sg4::Host* host)
{
e->add_actor("compute", host, computation_fun);
}
struct s_payload {
sg4::Host* tx_host;
const char* tx_actor_name;
double clock_sta;
};
static void communication_tx_fun(std::vector<std::string> args)
{
sg4::Mailbox* mbox = sg4::Mailbox::by_name(args.at(0));
auto* payload = new s_payload;
payload->tx_actor_name = sg4::Actor::self()->get_cname();
payload->tx_host = sg4::this_actor::get_host();
payload->clock_sta = sg4::Engine::get_clock();
mbox->put(payload, 1000000);
}
static void communication_rx_fun(std::vector<std::string> args)
{
const char* actor_name = sg4::Actor::self()->get_cname();
const char* host_name = sg4::this_actor::get_host()->get_cname();
sg4::Mailbox* mbox = sg4::Mailbox::by_name(args.at(0));
auto payload = mbox->get_unique<struct s_payload>();
double clock_end = sg4::Engine::get_clock();
XBT_INFO("%s:%s to %s:%s => %g sec", payload->tx_host->get_cname(), payload->tx_actor_name, host_name, actor_name,
clock_end - payload->clock_sta);
}
static void launch_communication_worker(sg4::Engine* e, sg4::Host* tx_host, sg4::Host* rx_host)
{
std::string mbox_name = "MBOX:" + tx_host->get_name() + "-" + rx_host->get_name();
std::vector<std::string> args;
args.push_back(mbox_name);
e->add_actor("comm_tx", tx_host, communication_tx_fun, args);
e->add_actor("comm_rx", rx_host, communication_rx_fun, args);
}
static void master_main()
{
auto e = simgrid::s4u::this_actor::get_engine();
sg4::Host* pm0 = sg4::Host::by_name("Fafard");
sg4::Host* pm1 = sg4::Host::by_name("Tremblay");
sg4::Host* pm2 = sg4::Host::by_name("Bourassa");
XBT_INFO("## Test 1 (started): check computation on normal PMs");
XBT_INFO("### Put an activity on a PM");
launch_computation_worker(e, pm0);
sg4::this_actor::sleep_for(2);
XBT_INFO("### Put two activities on a PM");
launch_computation_worker(e, pm0);
launch_computation_worker(e, pm0);
sg4::this_actor::sleep_for(2);
XBT_INFO("### Put an activity on each PM");
launch_computation_worker(e, pm0);
launch_computation_worker(e, pm1);
sg4::this_actor::sleep_for(2);
XBT_INFO("## Test 1 (ended)");
XBT_INFO(
"## Test 2 (started): check impact of running an activity inside a VM (there is no degradation for the moment)");
XBT_INFO("### Put a VM on a PM, and put an activity to the VM");
auto* vm0 = pm0->create_vm("VM0", 1);
vm0->start();
launch_computation_worker(e, vm0);
sg4::this_actor::sleep_for(2);
vm0->destroy();
XBT_INFO("## Test 2 (ended)");
XBT_INFO("## Test 3 (started): check impact of running an activity collocated with a VM (there is no VM noise for "
"the moment)");
XBT_INFO("### Put a VM on a PM, and put an activity to the PM");
vm0 = pm0->create_vm("VM0", 1);
vm0->start();
launch_computation_worker(e, pm0);
sg4::this_actor::sleep_for(2);
vm0->destroy();
XBT_INFO("## Test 3 (ended)");
XBT_INFO(
"## Test 4 (started): compare the cost of running two activities inside two different VMs collocated or not (for"
" the moment, there is no degradation for the VMs. Hence, the time should be equals to the time of test 1");
XBT_INFO("### Put two VMs on a PM, and put an activity to each VM");
vm0 = pm0->create_vm("VM0", 1);
vm0->start();
auto* vm1 = pm0->create_vm("VM1", 1);
vm1->start();
launch_computation_worker(e, vm0);
launch_computation_worker(e, vm1);
sg4::this_actor::sleep_for(2);
vm0->destroy();
vm1->destroy();
XBT_INFO("### Put a VM on each PM, and put an activity to each VM");
vm0 = pm0->create_vm("VM0", 1);
vm1 = pm1->create_vm("VM1", 1);
vm0->start();
vm1->start();
launch_computation_worker(e, vm0);
launch_computation_worker(e, vm1);
sg4::this_actor::sleep_for(2);
vm0->destroy();
vm1->destroy();
XBT_INFO("## Test 4 (ended)");
XBT_INFO("## Test 5 (started): Analyse network impact");
XBT_INFO("### Make a connection between PM0 and PM1");
launch_communication_worker(e, pm0, pm1);
sg4::this_actor::sleep_for(5);
XBT_INFO("### Make two connection between PM0 and PM1");
launch_communication_worker(e, pm0, pm1);
launch_communication_worker(e, pm0, pm1);
sg4::this_actor::sleep_for(5);
XBT_INFO("### Make a connection between PM0 and VM0@PM0");
vm0 = pm0->create_vm("VM0", 1);
vm0->start();
launch_communication_worker(e, pm0, vm0);
sg4::this_actor::sleep_for(5);
vm0->destroy();
XBT_INFO("### Make a connection between PM0 and VM0@PM1");
vm0 = pm1->create_vm("VM0", 1);
launch_communication_worker(e, pm0, vm0);
sg4::this_actor::sleep_for(5);
vm0->destroy();
XBT_INFO("### Make two connections between PM0 and VM0@PM1");
vm0 = pm1->create_vm("VM0", 1);
vm0->start();
launch_communication_worker(e, pm0, vm0);
launch_communication_worker(e, pm0, vm0);
sg4::this_actor::sleep_for(5);
vm0->destroy();
XBT_INFO("### Make a connection between PM0 and VM0@PM1, and also make a connection between PM0 and PM1");
vm0 = pm1->create_vm("VM0", 1);
vm0->start();
launch_communication_worker(e, pm0, vm0);
launch_communication_worker(e, pm0, pm1);
sg4::this_actor::sleep_for(5);
vm0->destroy();
XBT_INFO("### Make a connection between VM0@PM0 and PM1@PM1, and also make a connection between VM0@PM0 and VM1@PM1");
vm0 = pm0->create_vm("VM0", 1);
vm1 = pm1->create_vm("VM1", 1);
vm0->start();
vm1->start();
launch_communication_worker(e, vm0, vm1);
launch_communication_worker(e, vm0, vm1);
sg4::this_actor::sleep_for(5);
vm0->destroy();
vm1->destroy();
XBT_INFO("## Test 5 (ended)");
XBT_INFO("## Test 6 (started): Check migration impact (not yet implemented neither on the CPU resource nor on the"
" network one");
XBT_INFO("### Relocate VM0 between PM0 and PM1");
vm0 = pm0->create_vm("VM0", 1);
vm0->set_ramsize(1L * 1024 * 1024 * 1024); // 1GiB
vm0->start();
launch_communication_worker(e, vm0, pm2);
sg4::this_actor::sleep_for(0.01);
sg_vm_migrate(vm0, pm1);
sg4::this_actor::sleep_for(0.01);
sg_vm_migrate(vm0, pm0);
sg4::this_actor::sleep_for(5);
vm0->destroy();
XBT_INFO("## Test 6 (ended)");
}
int main(int argc, char* argv[])
{
sg4::Engine e(&argc, argv);
sg_vm_live_migration_plugin_init();
e.load_platform(argv[1]); /* - Load the platform description */
e.add_actor("master_", e.host_by_name("Fafard"), master_main);
e.run();
XBT_INFO("Simulation time %g", sg4::Engine::get_clock());
return 0;
}
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