examples/msg/masterslave/masterslave_bypass.c

   1 /* Copyright (c) 2007, 2008, 2009, 2010. 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 #include "msg/msg.h"            /* Yeah! If you want to use msg, you need to include msg/msg.h */
   9 #include "surf/surfxml_parse.h" /* to override surf_parse and bypass the parser */
  10
  11 /* Create a log channel to have nice outputs. */
  12 #include "xbt/log.h"
  13 XBT_LOG_NEW_DEFAULT_CATEGORY(msg_test,
  14                              "Messages specific for this msg example");
  15 #define FINALIZE ((void*)221297)        /* a magic number to tell people to stop working */
  16
  17 static int surf_parse_bypass_platform(void)
  18 {
  19   static int AX_ptr = 0;
  20   static int surfxml_bufferstack_size = 2048;
  21
  22   /* allocating memory for the buffer, I think 2kB should be enough */
  23   surfxml_bufferstack = xbt_new0(char, surfxml_bufferstack_size);
  24
  25   /* <platform> */
  26   SURFXML_BUFFER_SET(platform_version, "2");
  27
  28   SURFXML_START_TAG(platform);
  29
  30 /*   <host id="host A" power="100000000.00"/> */
  31   SURFXML_BUFFER_SET(host_id, "host A");
  32   SURFXML_BUFFER_SET(host_power, "100000000.00");
  33   SURFXML_BUFFER_SET(host_availability, "1.0");
  34   SURFXML_BUFFER_SET(host_availability_file, "");
  35   A_surfxml_host_state = A_surfxml_host_state_ON;
  36   SURFXML_BUFFER_SET(host_state_file, "");
  37   SURFXML_BUFFER_SET(host_interference_send, "1.0");
  38   SURFXML_BUFFER_SET(host_interference_recv, "1.0");
  39   SURFXML_BUFFER_SET(host_interference_send_recv, "1.0");
  40   SURFXML_BUFFER_SET(host_max_outgoing_rate, "-1.0");
  41
  42   SURFXML_START_TAG(host);
  43   SURFXML_END_TAG(host);
  44
  45 /*   <host id="host B" power="100000000.00"/> */
  46   SURFXML_BUFFER_SET(host_id, "host B");
  47   SURFXML_BUFFER_SET(host_power, "100000000.00");
  48   SURFXML_BUFFER_SET(host_availability, "1.0");
  49   SURFXML_BUFFER_SET(host_availability_file, "");
  50   A_surfxml_host_state = A_surfxml_host_state_ON;
  51   SURFXML_BUFFER_SET(host_state_file, "");
  52   SURFXML_BUFFER_SET(host_interference_send, "1.0");
  53   SURFXML_BUFFER_SET(host_interference_recv, "1.0");
  54   SURFXML_BUFFER_SET(host_interference_send_recv, "1.0");
  55   SURFXML_BUFFER_SET(host_max_outgoing_rate, "-1.0");
  56
  57   SURFXML_START_TAG(host);
  58   SURFXML_END_TAG(host);
  59
  60 /*   <link id="LinkA" bandwidth="10000000.0" latency="0.2"/> */
  61   SURFXML_BUFFER_SET(link_id, "LinkA");
  62   SURFXML_BUFFER_SET(link_bandwidth, "10000000.0");
  63   SURFXML_BUFFER_SET(link_bandwidth_file, "");
  64   SURFXML_BUFFER_SET(link_latency, "0.2");
  65   SURFXML_BUFFER_SET(link_latency_file, "");
  66   A_surfxml_link_state = A_surfxml_link_state_ON;
  67   SURFXML_BUFFER_SET(link_state_file, "");
  68   A_surfxml_link_sharing_policy = A_surfxml_link_sharing_policy_SHARED;
  69   SURFXML_START_TAG(link);
  70   SURFXML_END_TAG(link);
  71
  72 /*   <route src="host A" dst="host B"><link:ctn id="LinkA"/></route> */
  73   SURFXML_BUFFER_SET(route_src, "host A");
  74   SURFXML_BUFFER_SET(route_dst, "host B");
  75   SURFXML_BUFFER_SET(route_impact_on_src, "0.0");
  76   SURFXML_BUFFER_SET(route_impact_on_dst, "0.0");
  77   SURFXML_BUFFER_SET(route_impact_on_src_with_other_recv, "0.0");
  78   SURFXML_BUFFER_SET(route_impact_on_dst_with_other_send, "0.0");
  79
  80   SURFXML_START_TAG(route);
  81
  82   SURFXML_BUFFER_SET(link_c_ctn_id, "LinkA");
  83   SURFXML_START_TAG(link_c_ctn);
  84   SURFXML_END_TAG(link_c_ctn);
  85
  86   SURFXML_END_TAG(route);
  87
  88 /*   <route src="host B" dst="host A"><link:ctn id="LinkA"/></route> */
  89   SURFXML_BUFFER_SET(route_src, "host B");
  90   SURFXML_BUFFER_SET(route_dst, "host A");
  91   SURFXML_BUFFER_SET(route_impact_on_src, "0.0");
  92   SURFXML_BUFFER_SET(route_impact_on_dst, "0.0");
  93   SURFXML_BUFFER_SET(route_impact_on_src_with_other_recv, "0.0");
  94   SURFXML_BUFFER_SET(route_impact_on_dst_with_other_send, "0.0");
  95
  96   SURFXML_START_TAG(route);
  97
  98   SURFXML_BUFFER_SET(link_c_ctn_id, "LinkA");
  99   SURFXML_START_TAG(link_c_ctn);
 100   SURFXML_END_TAG(link_c_ctn);
 101
 102   SURFXML_END_TAG(route);
 103 /* </platform> */
 104   SURFXML_END_TAG(platform);
 105
 106   free(surfxml_bufferstack);
 107   return 0;
 108 }
 109
 110 static int surf_parse_bypass_application(void)
 111 {
 112   static int AX_ptr;
 113   static int surfxml_bufferstack_size = 2048;
 114
 115   /* allocating memory to the buffer, I think 2MB should be enough */
 116   surfxml_bufferstack = xbt_new0(char, surfxml_bufferstack_size);
 117
 118   /* <platform> */
 119   SURFXML_BUFFER_SET(platform_version, "2");
 120
 121   SURFXML_START_TAG(platform);
 122
 123 /*   <process host="host A" function="master"> */
 124   SURFXML_BUFFER_SET(process_host, "host A");
 125   SURFXML_BUFFER_SET(process_function, "master");
 126   SURFXML_BUFFER_SET(process_start_time, "-1.0");
 127   SURFXML_BUFFER_SET(process_kill_time, "-1.0");
 128   SURFXML_START_TAG(process);
 129
 130 /*      <argument value="20"/> */
 131   SURFXML_BUFFER_SET(argument_value, "20");
 132   SURFXML_START_TAG(argument);
 133   SURFXML_END_TAG(argument);
 134
 135 /*      <argument value="5000000"/> */
 136   SURFXML_BUFFER_SET(argument_value, "5000000");
 137   SURFXML_START_TAG(argument);
 138   SURFXML_END_TAG(argument);
 139
 140 /*      <argument value="100000"/> */
 141   SURFXML_BUFFER_SET(argument_value, "100000");
 142   SURFXML_START_TAG(argument);
 143   SURFXML_END_TAG(argument);
 144
 145 /*      <argument value="host B"/> */
 146   SURFXML_BUFFER_SET(argument_value, "host B");
 147   SURFXML_START_TAG(argument);
 148   SURFXML_END_TAG(argument);
 149
 150 /*   </process> */
 151   SURFXML_END_TAG(process);
 152
 153 /*   <process host="host B" function="slave"/> */
 154   SURFXML_BUFFER_SET(process_host, "host B");
 155   SURFXML_BUFFER_SET(process_function, "slave");
 156   SURFXML_BUFFER_SET(process_start_time, "-1.0");
 157   SURFXML_BUFFER_SET(process_kill_time, "-1.0");
 158   SURFXML_START_TAG(process);
 159   SURFXML_END_TAG(process);
 160
 161 /* </platform> */
 162   SURFXML_END_TAG(platform);
 163
 164   free(surfxml_bufferstack);
 165   return 0;
 166 }
 167
 168 int master(int argc, char *argv[]);
 169 int slave(int argc, char *argv[]);
 170 MSG_error_t test_all(void);
 171
 172 typedef enum {
 173   PORT_22 = 0,
 174   MAX_CHANNEL
 175 } channel_t;
 176
 177 /** Emitter function  */
 178 int master(int argc, char *argv[])
 179 {
 180   int slaves_count = 0;
 181   m_host_t *slaves = NULL;
 182   m_task_t *todo = NULL;
 183   int number_of_tasks = 0;
 184   double task_comp_size = 0;
 185   double task_comm_size = 0;
 186
 187
 188   int i;
 189
 190   xbt_assert1(sscanf(argv[1], "%d", &number_of_tasks),
 191               "Invalid argument %s\n", argv[1]);
 192   xbt_assert1(sscanf(argv[2], "%lg", &task_comp_size),
 193               "Invalid argument %s\n", argv[2]);
 194   xbt_assert1(sscanf(argv[3], "%lg", &task_comm_size),
 195               "Invalid argument %s\n", argv[3]);
 196
 197   {                             /*  Task creation */
 198     char sprintf_buffer[64];
 199
 200     todo = xbt_new0(m_task_t, number_of_tasks);
 201
 202     for (i = 0; i < number_of_tasks; i++) {
 203       sprintf(sprintf_buffer, "Task_%d", i);
 204       todo[i] =
 205         MSG_task_create(sprintf_buffer, task_comp_size, task_comm_size, NULL);
 206     }
 207   }
 208
 209   {                             /* Process organisation */
 210     slaves_count = argc - 4;
 211     slaves = xbt_new0(m_host_t, slaves_count);
 212
 213     for (i = 4; i < argc; i++) {
 214       slaves[i - 4] = MSG_get_host_by_name(argv[i]);
 215       if (slaves[i - 4] == NULL) {
 216         INFO1("Unknown host %s. Stopping Now! ", argv[i]);
 217         abort();
 218       }
 219     }
 220   }
 221
 222   INFO1("Got %d slave(s) :", slaves_count);
 223   for (i = 0; i < slaves_count; i++)
 224     INFO1("\t %s", slaves[i]->name);
 225
 226   INFO1("Got %d task to process :", number_of_tasks);
 227
 228   for (i = 0; i < number_of_tasks; i++)
 229     INFO1("\t\"%s\"", todo[i]->name);
 230
 231   for (i = 0; i < number_of_tasks; i++) {
 232     INFO2("Sending \"%s\" to \"%s\"",
 233           todo[i]->name, slaves[i % slaves_count]->name);
 234     if (MSG_host_self() == slaves[i % slaves_count]) {
 235       INFO0("Hey ! It's me ! :)");
 236     }
 237     MSG_task_put(todo[i], slaves[i % slaves_count], PORT_22);
 238     INFO0("Send completed");
 239   }
 240
 241   INFO0
 242     ("All tasks have been dispatched. Let's tell everybody the computation is over.");
 243   for (i = 0; i < slaves_count; i++)
 244     MSG_task_put(MSG_task_create("finalize", 0, 0, FINALIZE),
 245                  slaves[i], PORT_22);
 246
 247   INFO0("Goodbye now!");
 248   free(slaves);
 249   free(todo);
 250   return 0;
 251 }                               /* end_of_master */
 252
 253 /** Receiver function  */
 254 int slave(int argc, char *argv[])
 255 {
 256   INFO0("I'm a slave");
 257   while (1) {
 258     m_task_t task = NULL;
 259     int a;
 260     a = MSG_task_get(&(task), PORT_22);
 261     if (a == MSG_OK) {
 262       INFO1("Received \"%s\" ", MSG_task_get_name(task));
 263       if (MSG_task_get_data(task) == FINALIZE) {
 264         MSG_task_destroy(task);
 265         break;
 266       }
 267       INFO1("Processing \"%s\" ", MSG_task_get_name(task));
 268       MSG_task_execute(task);
 269       INFO1("\"%s\" done ", MSG_task_get_name(task));
 270       MSG_task_destroy(task);
 271     } else {
 272       INFO0("Hey ?! What's up ? ");
 273       xbt_assert0(0, "Unexpected behavior");
 274     }
 275   }
 276   INFO0("I'm done. See you!");
 277   return 0;
 278 }                               /* end_of_slave */
 279
 280 /** Test function */
 281 MSG_error_t test_all(void)
 282 {
 283   MSG_error_t res = MSG_OK;
 284
 285   /*  Simulation setting */
 286   MSG_set_channel_number(MAX_CHANNEL);
 287   surf_parse = surf_parse_bypass_platform;
 288   MSG_create_environment(NULL);
 289
 290   /*   Application deployment */
 291   MSG_function_register("master", master);
 292   MSG_function_register("slave", slave);
 293   surf_parse = surf_parse_bypass_application;
 294   MSG_launch_application(NULL);
 295
 296   res = MSG_main();
 297
 298   INFO1("Simulation time %g", MSG_get_clock());
 299   return res;
 300 }                               /* end_of_test_all */
 301
 302 /** Main function */
 303 int main(int argc, char *argv[])
 304 {
 305   MSG_error_t res = MSG_OK;
 306
 307   MSG_global_init(&argc, argv);
 308   res = test_all();
 309   MSG_clean();
 310
 311   if (res == MSG_OK)
 312     return 0;
 313   else
 314     return 1;
 315 }                               /* end_of_main */