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
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
|
/* 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/actor.h"
#include "simgrid/engine.h"
#include "simgrid/host.h"
#include "simgrid/mailbox.h"
#include "simgrid/plugins/live_migration.h"
#include "simgrid/vm.h"
#include "xbt/log.h"
#include "xbt/str.h"
#include "xbt/sysdep.h"
XBT_LOG_NEW_DEFAULT_CATEGORY(cloud_simple, "Messages specific for this example");
static void computation_fun(int argc, char* argv[])
{
const char* pr_name = sg_actor_get_name(sg_actor_self());
const char* host_name = sg_host_get_name(sg_host_self());
double clock_sta = simgrid_get_clock();
sg_actor_execute(1000000);
double clock_end = simgrid_get_clock();
XBT_INFO("%s:%s task executed %g", host_name, pr_name, clock_end - clock_sta);
}
static void launch_computation_worker(sg_host_t host)
{
sg_actor_create("compute", host, &computation_fun, 0, NULL);
}
struct task_priv {
sg_host_t tx_host;
sg_actor_t tx_proc;
double clock_sta;
};
static void communication_tx_fun(int argc, char* argv[])
{
xbt_assert(argc == 2);
sg_mailbox_t mbox = sg_mailbox_by_name(argv[1]);
struct task_priv* priv = xbt_new(struct task_priv, 1);
priv->tx_proc = sg_actor_self();
priv->tx_host = sg_host_self();
priv->clock_sta = simgrid_get_clock();
sg_mailbox_put(mbox, priv, 1000000);
}
static void communication_rx_fun(int argc, char* argv[])
{
const char* pr_name = sg_actor_get_name(sg_actor_self());
const char* host_name = sg_host_get_name(sg_host_self());
xbt_assert(argc == 2);
sg_mailbox_t mbox = sg_mailbox_by_name(argv[1]);
struct task_priv* priv = (struct task_priv*)sg_mailbox_get(mbox);
double clock_end = simgrid_get_clock();
XBT_INFO("%s:%s to %s:%s => %g sec", sg_host_get_name(priv->tx_host), sg_actor_get_name(priv->tx_proc), host_name,
pr_name, clock_end - priv->clock_sta);
xbt_free(priv);
}
static void launch_communication_worker(sg_host_t tx_host, sg_host_t rx_host)
{
char* mbox = bprintf("MBOX:%s-%s", sg_host_get_name(tx_host), sg_host_get_name(rx_host));
const char* tx_argv[] = {"comm_tx", mbox, NULL};
sg_actor_create_("comm_tx", tx_host, &communication_tx_fun, 2, tx_argv);
const char* rx_argv[] = {"comm_rx", mbox, NULL};
sg_actor_create_("comm_rx", rx_host, &communication_rx_fun, 2, rx_argv);
xbt_free(mbox);
}
static void master_main(int argc, char* argv[])
{
sg_host_t pm0 = sg_host_by_name("Fafard");
sg_host_t pm1 = sg_host_by_name("Tremblay");
sg_host_t pm2 = sg_host_by_name("Bourassa");
XBT_INFO("## Test 1 (started): check computation on normal PMs");
XBT_INFO("### Put a task on a PM");
launch_computation_worker(pm0);
sg_actor_sleep_for(2);
XBT_INFO("### Put two tasks on a PM");
launch_computation_worker(pm0);
launch_computation_worker(pm0);
sg_actor_sleep_for(2);
XBT_INFO("### Put a task on each PM");
launch_computation_worker(pm0);
launch_computation_worker(pm1);
sg_actor_sleep_for(2);
XBT_INFO("## Test 1 (ended)");
XBT_INFO("## Test 2 (started): check impact of running a task inside a VM (there is no degradation for the moment)");
XBT_INFO("### Put a VM on a PM, and put a task to the VM");
sg_vm_t vm0 = sg_vm_create_core(pm0, "VM0");
sg_vm_start(vm0);
launch_computation_worker((sg_host_t)vm0);
sg_actor_sleep_for(2);
sg_vm_destroy(vm0);
XBT_INFO("## Test 2 (ended)");
XBT_INFO(
"## Test 3 (started): check impact of running a task collocated with a VM (there is no VM noise for the moment)");
XBT_INFO("### Put a VM on a PM, and put a task to the PM");
vm0 = sg_vm_create_core(pm0, "VM0");
sg_vm_start(vm0);
launch_computation_worker(pm0);
sg_actor_sleep_for(2);
sg_vm_destroy(vm0);
XBT_INFO("## Test 3 (ended)");
XBT_INFO("## Test 4 (started): compare the cost of running two tasks 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 a task to each VM");
vm0 = sg_vm_create_core(pm0, "VM0");
sg_vm_t vm1 = sg_vm_create_core(pm0, "VM1");
sg_vm_start(vm0);
sg_vm_start(vm1);
launch_computation_worker((sg_host_t)vm0);
launch_computation_worker((sg_host_t)vm1);
sg_actor_sleep_for(2);
sg_vm_destroy(vm0);
sg_vm_destroy(vm1);
XBT_INFO("### Put a VM on each PM, and put a task to each VM");
vm0 = sg_vm_create_core(pm0, "VM0");
vm1 = sg_vm_create_core(pm1, "VM1");
sg_vm_start(vm0);
sg_vm_start(vm1);
launch_computation_worker((sg_host_t)vm0);
launch_computation_worker((sg_host_t)vm1);
sg_actor_sleep_for(2);
sg_vm_destroy(vm0);
sg_vm_destroy(vm1);
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(pm0, pm1);
sg_actor_sleep_for(5);
XBT_INFO("### Make two connection between PM0 and PM1");
launch_communication_worker(pm0, pm1);
launch_communication_worker(pm0, pm1);
sg_actor_sleep_for(5);
XBT_INFO("### Make a connection between PM0 and VM0@PM0");
vm0 = sg_vm_create_core(pm0, "VM0");
sg_vm_start(vm0);
launch_communication_worker(pm0, (sg_host_t)vm0);
sg_actor_sleep_for(5);
sg_vm_destroy(vm0);
XBT_INFO("### Make a connection between PM0 and VM0@PM1");
vm0 = sg_vm_create_core(pm1, "VM0");
sg_vm_start(vm0);
launch_communication_worker(pm0, (sg_host_t)vm0);
sg_actor_sleep_for(5);
sg_vm_destroy(vm0);
XBT_INFO("### Make two connections between PM0 and VM0@PM1");
vm0 = sg_vm_create_core(pm1, "VM0");
sg_vm_start(vm0);
launch_communication_worker(pm0, (sg_host_t)vm0);
launch_communication_worker(pm0, (sg_host_t)vm0);
sg_actor_sleep_for(5);
sg_vm_destroy(vm0);
XBT_INFO("### Make a connection between PM0 and VM0@PM1, and also make a connection between PM0 and PM1");
vm0 = sg_vm_create_core(pm1, "VM0");
sg_vm_start(vm0);
launch_communication_worker(pm0, (sg_host_t)vm0);
launch_communication_worker(pm0, pm1);
sg_actor_sleep_for(5);
sg_vm_destroy(vm0);
XBT_INFO("### Make a connection between VM0@PM0 and PM1@PM1, and also make a connection between VM0@PM0 and VM1@PM1");
vm0 = sg_vm_create_core(pm0, "VM0");
vm1 = sg_vm_create_core(pm1, "VM1");
sg_vm_start(vm0);
sg_vm_start(vm1);
launch_communication_worker((sg_host_t)vm0, (sg_host_t)vm1);
launch_communication_worker((sg_host_t)vm0, (sg_host_t)vm1);
sg_actor_sleep_for(5);
sg_vm_destroy(vm0);
sg_vm_destroy(vm1);
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 = sg_vm_create_core(pm0, "VM0");
sg_vm_set_ramsize(vm0, 1L * 1024 * 1024 * 1024); // 1GiB
sg_vm_start(vm0);
launch_communication_worker((sg_host_t)vm0, pm2);
sg_actor_sleep_for(0.01);
sg_vm_migrate(vm0, pm1);
sg_actor_sleep_for(0.01);
sg_vm_migrate(vm0, pm0);
sg_actor_sleep_for(5);
sg_vm_destroy(vm0);
XBT_INFO("## Test 6 (ended)");
}
int main(int argc, char* argv[])
{
/* Get the arguments */
simgrid_init(&argc, argv);
sg_vm_live_migration_plugin_init();
/* load the platform file */
simgrid_load_platform(argv[1]);
sg_actor_create("master_", sg_host_by_name("Fafard"), &master_main, 0, NULL);
simgrid_run();
XBT_INFO("Simulation time %g", simgrid_get_clock());
return 0;
}
|
