1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
|
#include "simgrid/s4u.hpp"
#include <simgrid/s4u/Mailbox.hpp>
#include <string>
#include <sstream>
#include "inputs.hpp"
#include "simgrid/s4u/Host.hpp"
#include "simgrid/plugins/energy.h"
#include "xbt/log.h"
#define PLATFORM_FILE "platform.xml"
#define TURN_OFF() simgrid::s4u::this_actor::get_host()->set_pstate(0);
#define TURN_ON() simgrid::s4u::this_actor::get_host()->set_pstate(1);
/// @brief Required by SimGrid
XBT_LOG_NEW_DEFAULT_CATEGORY(simulator, "[DAO]");
/// @brief For convenience
typedef unsigned int u32;
/**
* Data that will be exchange between the nodes
*/
class Payload{
public:
Payload():hint(0),duration(0),containsHint(false){}
double hint;
double duration;
bool containsHint;
};
/// @brief Observation node code
static void obs_node(std::vector<std::string> args);
/**
* No arguments are require (cf inputs.json)
*/
int main(int argc, char **argv) {
// Build engine
sg_host_energy_plugin_init();
simgrid::s4u::Engine engine(&argc, argv);
Inputs::GeneratePlatform(PLATFORM_FILE);
engine.load_platform(PLATFORM_FILE);
// Headline
XBT_INFO("-------------------------------------------------");
XBT_INFO("Sarting loosely coupled data dissemination experiments");
XBT_INFO("-------------------------------------------------");
// Init all nodes actors
u32 nON=simgrid::s4u::Engine::get_instance()->get_host_count();
for(u32 i=0;i<nON;i++){
std::vector<std::string> args;
std::ostringstream ss;
ss<< "on" <<i;
simgrid::s4u::Actor::create("ON", simgrid::s4u::Host::by_name(ss.str()), obs_node, args);
}
// Setup/Run simulation
engine.run();
XBT_INFO("Simulation took %fs", simgrid::s4u::Engine::get_clock());
XBT_INFO("The simulated platform file is available in \"%s\"",PLATFORM_FILE);
return (0);
}
/**
* This is the brain behind each node
*/
static void obs_node(std::vector<std::string> args) {
// Init various variables
std::string selfName = simgrid::s4u::this_actor::get_host()->get_name();
simgrid::s4u::this_actor::get_host()->turn_on();
Inputs i(selfName);
simgrid::s4u::Mailbox *m = simgrid::s4u::Mailbox::by_name("medium");
XBT_INFO("Deploying observation node %s",selfName.c_str());
// Init convenient variables
bool isSender=i.is_sender;
bool useHint=i.use_hint;
bool isObserver=false;
u32 data_size=i.data_size;
// Starting node
u32 nWakeUp=0;
u32 nDataRcv=0;
while(i.ShouldContinue()){
XBT_INFO("%s is spleeping",selfName.c_str());
TURN_OFF();
simgrid::s4u::this_actor::sleep_until(i.GetTS());
TURN_ON();
XBT_INFO("%s wakes up",selfName.c_str());
// Doing wake up stuff
try {
if(isSender){ // If I am a sender
Payload *p=new Payload();
if(useHint&&i.HasNext()){
p->containsHint=true;
p->hint=i.GetNextTS();
p->duration=i.GetNextDuration();
}
m->put(p,data_size,i.GetDuration());
XBT_INFO("%s send data successfully",selfName.c_str());
isObserver=true; // Do one send for now...
isSender=false;
}
else if (!isObserver){
Payload* p=m->get<Payload>(i.GetDuration());
nDataRcv++; // New data received
if(p->containsHint){
XBT_INFO("%s received and hint of %f",selfName.c_str(),p->hint);
i.AddEvent(p->hint, p->duration); // Schedule a new wake up time
}
else{
XBT_INFO("%s received data successfully and switch to forwarding mode",selfName.c_str());
isSender=!isSender; // Toggle isSender to start sending
}
}
else {
XBT_INFO("%s is observing is environment...",selfName.c_str());
simgrid::s4u::this_actor::sleep_until(i.GetDuration());
}
}
catch (...)
{
if(isSender)
XBT_INFO("%s failed to send data",selfName.c_str());
else
XBT_INFO("%s failed to receive data",selfName.c_str());
}
// Load next event
i.GotoNextEvent();
nWakeUp++; // Increase the number of wake up
}
// Done
TURN_OFF()
XBT_INFO("Observation node %s finished (nWakeUp:%d|nDataRcv:%d)",selfName.c_str(),nWakeUp,nDataRcv);
}
|
