examples/msg/energy/onoff/onoff.c

   1 /* Copyright (c) 2007-2010, 2013-2014. The SimGrid Team.
   2  * All rights reserved.                                                     */
   3
   4 /* This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the license (GNU LGPL) which comes with this package. */
   6
   7 #include<stdio.h>
   8
   9 #include "simgrid/msg.h"
  10 #include "xbt/sysdep.h"         /* calloc */
  11 #include "simgrid/plugins.h"
  12
  13 /* Create a log channel to have nice outputs. */
  14 #include "xbt/log.h"
  15 #include "xbt/asserts.h"
  16
  17 XBT_LOG_NEW_DEFAULT_CATEGORY(msg_test,
  18                 "Messages specific for this msg example");
  19
  20 static void simulate_bootup(msg_host_t host) {
  21
  22         int previous_pstate = MSG_host_get_pstate(host);
  23
  24         XBT_INFO("Switch to virtual pstate 3, that encodes the shutting down state in the XML file of that example");
  25         MSG_host_set_pstate(host,3);
  26
  27         msg_host_t host_list[1] = {host};
  28         double flops_amount[1] = {1};
  29         double bytes_amount[1] = {0};
  30
  31         XBT_INFO("Actually start the host");
  32         MSG_host_on(host);
  33
  34         XBT_INFO("Simulate the boot up by executing one flop on that host");
  35         // We use a parallel task to run some task on a remote host.
  36         msg_task_t bootup = MSG_parallel_task_create("boot up", 1, host_list, flops_amount, bytes_amount, NULL);
  37         MSG_task_execute(bootup);
  38         MSG_task_destroy(bootup);
  39
  40         XBT_INFO("Switch back to previously selected pstate %d", previous_pstate);
  41         MSG_host_set_pstate(host, previous_pstate);
  42 }
  43
  44 static void simulate_shutdown(msg_host_t host) {
  45
  46         int previous_pstate = MSG_host_get_pstate(host);
  47
  48         XBT_INFO("Switch to virtual pstate 4, that encodes the shutting down state in the XML file of that example");
  49         MSG_host_set_pstate(host,4);
  50
  51         msg_host_t host_list[1] = {host};
  52         double flops_amount[1] = {1};
  53         double bytes_amount[1] = {0};
  54
  55         XBT_INFO("Simulate the shutdown by executing one flop on that remote host (using a parallel task)");
  56         msg_task_t shutdown = MSG_parallel_task_create("shutdown", 1, host_list, flops_amount, bytes_amount, NULL);
  57         MSG_task_execute(shutdown);
  58         MSG_task_destroy(shutdown);
  59
  60         XBT_INFO("Switch back to previously selected pstate %d", previous_pstate);
  61         MSG_host_set_pstate(host, previous_pstate);
  62
  63         XBT_INFO("Actually shutdown the host");
  64         MSG_host_off(host);
  65 }
  66
  67 static int onoff(int argc, char *argv[]) {
  68         msg_host_t host1 = MSG_host_by_name("MyHost1");
  69
  70         XBT_INFO("Energetic profile: %s",
  71                         MSG_host_get_property_value(host1,"watt_per_state"));
  72         XBT_INFO("Initial peak speed=%.0E flop/s; Energy dissipated =%.0E J",
  73                         MSG_host_get_current_power_peak(host1), MSG_host_get_consumed_energy(host1));
  74
  75         XBT_INFO("Sleep for 10 seconds");
  76         MSG_process_sleep(10);
  77         XBT_INFO("Done sleeping. Current peak speed=%.0E; Energy dissipated=%.2f J",
  78                         MSG_host_get_current_power_peak(host1), MSG_host_get_consumed_energy(host1));
  79
  80         simulate_shutdown(host1);
  81         XBT_INFO("Host1 is now OFF. Current peak speed=%.0E flop/s; Energy dissipated=%.0f J",
  82                         MSG_host_get_current_power_peak(host1), MSG_host_get_consumed_energy(host1));
  83
  84         XBT_INFO("Sleep for 10 seconds");
  85         MSG_process_sleep(10);
  86         XBT_INFO("Done sleeping. Current peak speed=%.0E; Energy dissipated=%.2f J",
  87                         MSG_host_get_current_power_peak(host1), MSG_host_get_consumed_energy(host1));
  88
  89         simulate_bootup(host1);
  90         XBT_INFO("Host1 is now ON again. Current peak speed=%.0E flop/s; Energy dissipated=%.0f J",
  91                         MSG_host_get_current_power_peak(host1), MSG_host_get_consumed_energy(host1));
  92
  93
  94         return 0;
  95 }
  96
  97 int main(int argc, char *argv[])
  98 {
  99         msg_error_t res = MSG_OK;
 100         sg_energy_plugin_init();
 101         MSG_init(&argc, argv);
 102
 103         if (argc != 3) {
 104                 XBT_CRITICAL("Usage: %s platform_file deployment_file\n",
 105                                 argv[0]);
 106                 XBT_CRITICAL
 107                 ("example: %s msg_platform.xml msg_deployment.xml\n",
 108                                 argv[0]);
 109                 exit(1);
 110         }
 111
 112         MSG_create_environment(argv[1]);
 113
 114         /*   Application deployment */
 115         MSG_function_register("onoff_test", onoff);
 116
 117         MSG_launch_application(argv[2]);
 118
 119         res = MSG_main();
 120
 121         XBT_INFO("Total simulation time: %.2f", MSG_get_clock());
 122
 123         if (res == MSG_OK)
 124                 return 0;
 125         else
 126                 return 1;
 127 }
 128