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 // OLD THINGS COMMENTED
  74 //   SURFXML_BUFFER_SET(route_src, "host A");
  75 //   SURFXML_BUFFER_SET(route_dst, "host B");
  76 //   SURFXML_BUFFER_SET(route_impact_on_src, "0.0");
  77 //   SURFXML_BUFFER_SET(route_impact_on_dst, "0.0");
  78 //   SURFXML_BUFFER_SET(route_impact_on_src_with_other_recv, "0.0");
  79 //   SURFXML_BUFFER_SET(route_impact_on_dst_with_other_send, "0.0");
  80
  81   SURFXML_START_TAG(route);
  82
  83   SURFXML_BUFFER_SET(link_c_ctn_id, "LinkA");
  84   SURFXML_START_TAG(link_c_ctn);
  85   SURFXML_END_TAG(link_c_ctn);
  86
  87   SURFXML_END_TAG(route);
  88
  89 /*   <route src="host B" dst="host A"><link:ctn id="LinkA"/></route> */
  90 // OLD THINGS COMMENTED
  91 //   SURFXML_BUFFER_SET(route_src, "host B");
  92 //   SURFXML_BUFFER_SET(route_dst, "host A");
  93 //   SURFXML_BUFFER_SET(route_impact_on_src, "0.0");
  94 //   SURFXML_BUFFER_SET(route_impact_on_dst, "0.0");
  95 //   SURFXML_BUFFER_SET(route_impact_on_src_with_other_recv, "0.0");
  96 //   SURFXML_BUFFER_SET(route_impact_on_dst_with_other_send, "0.0");
  97
  98   SURFXML_START_TAG(route);
  99
 100   SURFXML_BUFFER_SET(link_c_ctn_id, "LinkA");
 101   SURFXML_START_TAG(link_c_ctn);
 102   SURFXML_END_TAG(link_c_ctn);
 103
 104   SURFXML_END_TAG(route);
 105 /* </platform> */
 106   SURFXML_END_TAG(platform);
 107
 108   free(surfxml_bufferstack);
 109   return 0;
 110 }
 111
 112 static int surf_parse_bypass_application(void)
 113 {
 114   static int AX_ptr;
 115   static int surfxml_bufferstack_size = 2048;
 116
 117   /* allocating memory to the buffer, I think 2MB should be enough */
 118   surfxml_bufferstack = xbt_new0(char, surfxml_bufferstack_size);
 119
 120   /* <platform> */
 121   SURFXML_BUFFER_SET(platform_version, "2");
 122
 123   SURFXML_START_TAG(platform);
 124
 125 /*   <process host="host A" function="master"> */
 126   SURFXML_BUFFER_SET(process_host, "host A");
 127   SURFXML_BUFFER_SET(process_function, "master");
 128   SURFXML_BUFFER_SET(process_start_time, "-1.0");
 129   SURFXML_BUFFER_SET(process_kill_time, "-1.0");
 130   SURFXML_START_TAG(process);
 131
 132 /*      <argument value="20"/> */
 133   SURFXML_BUFFER_SET(argument_value, "20");
 134   SURFXML_START_TAG(argument);
 135   SURFXML_END_TAG(argument);
 136
 137 /*      <argument value="5000000"/> */
 138   SURFXML_BUFFER_SET(argument_value, "5000000");
 139   SURFXML_START_TAG(argument);
 140   SURFXML_END_TAG(argument);
 141
 142 /*      <argument value="100000"/> */
 143   SURFXML_BUFFER_SET(argument_value, "100000");
 144   SURFXML_START_TAG(argument);
 145   SURFXML_END_TAG(argument);
 146
 147 /*      <argument value="host B"/> */
 148   SURFXML_BUFFER_SET(argument_value, "host B");
 149   SURFXML_START_TAG(argument);
 150   SURFXML_END_TAG(argument);
 151
 152 /*   </process> */
 153   SURFXML_END_TAG(process);
 154
 155 /*   <process host="host B" function="slave"/> */
 156   SURFXML_BUFFER_SET(process_host, "host B");
 157   SURFXML_BUFFER_SET(process_function, "slave");
 158   SURFXML_BUFFER_SET(process_start_time, "-1.0");
 159   SURFXML_BUFFER_SET(process_kill_time, "-1.0");
 160   SURFXML_START_TAG(process);
 161   SURFXML_END_TAG(process);
 162
 163 /* </platform> */
 164   SURFXML_END_TAG(platform);
 165
 166   free(surfxml_bufferstack);
 167   return 0;
 168 }
 169
 170 int master(int argc, char *argv[]);
 171 int slave(int argc, char *argv[]);
 172 MSG_error_t test_all(void);
 173
 174 typedef enum {
 175   PORT_22 = 0,
 176   MAX_CHANNEL
 177 } channel_t;
 178
 179 /** Emitter function  */
 180 int master(int argc, char *argv[])
 181 {
 182   int slaves_count = 0;
 183   m_host_t *slaves = NULL;
 184   m_task_t *todo = NULL;
 185   int number_of_tasks = 0;
 186   double task_comp_size = 0;
 187   double task_comm_size = 0;
 188
 189
 190   int i;
 191
 192   xbt_assert1(sscanf(argv[1], "%d", &number_of_tasks),
 193               "Invalid argument %s\n", argv[1]);
 194   xbt_assert1(sscanf(argv[2], "%lg", &task_comp_size),
 195               "Invalid argument %s\n", argv[2]);
 196   xbt_assert1(sscanf(argv[3], "%lg", &task_comm_size),
 197               "Invalid argument %s\n", argv[3]);
 198
 199   {                             /*  Task creation */
 200     char sprintf_buffer[64];
 201
 202     todo = xbt_new0(m_task_t, number_of_tasks);
 203
 204     for (i = 0; i < number_of_tasks; i++) {
 205       sprintf(sprintf_buffer, "Task_%d", i);
 206       todo[i] =
 207         MSG_task_create(sprintf_buffer, task_comp_size, task_comm_size, NULL);
 208     }
 209   }
 210
 211   {                             /* Process organisation */
 212     slaves_count = argc - 4;
 213     slaves = xbt_new0(m_host_t, slaves_count);
 214
 215     for (i = 4; i < argc; i++) {
 216       slaves[i - 4] = MSG_get_host_by_name(argv[i]);
 217       if (slaves[i - 4] == NULL) {
 218         INFO1("Unknown host %s. Stopping Now! ", argv[i]);
 219         abort();
 220       }
 221     }
 222   }
 223
 224   INFO1("Got %d slave(s) :", slaves_count);
 225   for (i = 0; i < slaves_count; i++)
 226     INFO1("\t %s", slaves[i]->name);
 227
 228   INFO1("Got %d task to process :", number_of_tasks);
 229
 230   for (i = 0; i < number_of_tasks; i++)
 231     INFO1("\t\"%s\"", todo[i]->name);
 232
 233   for (i = 0; i < number_of_tasks; i++) {
 234     INFO2("Sending \"%s\" to \"%s\"",
 235           todo[i]->name, slaves[i % slaves_count]->name);
 236     if (MSG_host_self() == slaves[i % slaves_count]) {
 237       INFO0("Hey ! It's me ! :)");
 238     }
 239     MSG_task_put(todo[i], slaves[i % slaves_count], PORT_22);
 240     INFO0("Send completed");
 241   }
 242
 243   INFO0
 244     ("All tasks have been dispatched. Let's tell everybody the computation is over.");
 245   for (i = 0; i < slaves_count; i++)
 246     MSG_task_put(MSG_task_create("finalize", 0, 0, FINALIZE),
 247                  slaves[i], PORT_22);
 248
 249   INFO0("Goodbye now!");
 250   free(slaves);
 251   free(todo);
 252   return 0;
 253 }                               /* end_of_master */
 254
 255 /** Receiver function  */
 256 int slave(int argc, char *argv[])
 257 {
 258   INFO0("I'm a slave");
 259   while (1) {
 260     m_task_t task = NULL;
 261     int a;
 262     a = MSG_task_get(&(task), PORT_22);
 263     if (a == MSG_OK) {
 264       INFO1("Received \"%s\" ", MSG_task_get_name(task));
 265       if (MSG_task_get_data(task) == FINALIZE) {
 266         MSG_task_destroy(task);
 267         break;
 268       }
 269       INFO1("Processing \"%s\" ", MSG_task_get_name(task));
 270       MSG_task_execute(task);
 271       INFO1("\"%s\" done ", MSG_task_get_name(task));
 272       MSG_task_destroy(task);
 273     } else {
 274       INFO0("Hey ?! What's up ? ");
 275       xbt_assert0(0, "Unexpected behavior");
 276     }
 277   }
 278   INFO0("I'm done. See you!");
 279   return 0;
 280 }                               /* end_of_slave */
 281
 282 /** Test function */
 283 MSG_error_t test_all(void)
 284 {
 285   MSG_error_t res = MSG_OK;
 286
 287   /*  Simulation setting */
 288   MSG_set_channel_number(MAX_CHANNEL);
 289   surf_parse = surf_parse_bypass_platform;
 290   MSG_create_environment(NULL);
 291
 292   /*   Application deployment */
 293   MSG_function_register("master", master);
 294   MSG_function_register("slave", slave);
 295   surf_parse = surf_parse_bypass_application;
 296   MSG_launch_application(NULL);
 297
 298   res = MSG_main();
 299
 300   INFO1("Simulation time %g", MSG_get_clock());
 301   return res;
 302 }                               /* end_of_test_all */
 303
 304 /** Main function */
 305 int main(int argc, char *argv[])
 306 {
 307   MSG_error_t res = MSG_OK;
 308
 309   MSG_global_init(&argc, argv);
 310   res = test_all();
 311   MSG_clean();
 312
 313   if (res == MSG_OK)
 314     return 0;
 315   else
 316     return 1;
 317 }                               /* end_of_main */