examples/msg/masterslave/masterslave_bypass.c

   1 /*      $Id$     */
   2
   3 /* Copyright (c) 2002,2003,2004 Arnaud Legrand. All rights reserved.        */
   4
   5 /* This program is free software; you can redistribute it and/or modify it
   6  * under the terms of the license (GNU LGPL) which comes with this package. */
   7
   8 #include <stdio.h>
   9 #include "msg/msg.h"  /* Yeah! If you want to use msg, you need to include msg/msg.h */
  10 #include "surf/surfxml_parse.h" /* to override surf_parse and bypass the parser */
  11 #include "surf/surfxml.h"       /* to hijack surf_parse_lex */
  12
  13 /* Create a log channel to have nice outputs. */
  14 #include "xbt/log.h"
  15 XBT_LOG_NEW_DEFAULT_CATEGORY(msg_test,"Messages specific for this msg example");
  16 #define FINALIZE ((void*)221297) /* a magic number to tell people to stop working */
  17
  18 static int surf_parse_bypass_platform(void)
  19 {
  20   static int AX_ptr = 0;
  21   static int surfxml_bufferstack_size = 2048;
  22
  23   /* allocating memory for the buffer, I think 2kB should be enough */
  24   surfxml_bufferstack = xbt_new0(char, surfxml_bufferstack_size);
  25
  26   /* <platform_description> */
  27   SURFXML_BUFFER_SET(platform_description_version,"2");
  28
  29   SURFXML_START_TAG(platform_description);
  30
  31 /*   <host id="host A" power="100000000.00"/> */
  32   SURFXML_BUFFER_SET(host_id,"host A");
  33   SURFXML_BUFFER_SET(host_power, "100000000.00");
  34   SURFXML_BUFFER_SET(host_availability, "1.0");
  35   SURFXML_BUFFER_SET(host_availability_file, "");
  36   A_surfxml_host_state = A_surfxml_host_state_ON;
  37   SURFXML_BUFFER_SET(host_state_file, "");
  38   SURFXML_BUFFER_SET(host_interference_send, "1.0");
  39   SURFXML_BUFFER_SET(host_interference_recv, "1.0");
  40   SURFXML_BUFFER_SET(host_interference_send_recv, "1.0");
  41   SURFXML_BUFFER_SET(host_max_outgoing_rate, "-1.0");
  42
  43   SURFXML_START_TAG(host);
  44   SURFXML_END_TAG(host);
  45
  46 /*   <host id="host B" power="100000000.00"/> */
  47   SURFXML_BUFFER_SET(host_id, "host B");
  48   SURFXML_BUFFER_SET(host_power, "100000000.00");
  49   SURFXML_BUFFER_SET(host_availability, "1.0");
  50   SURFXML_BUFFER_SET(host_availability_file, "");
  51   A_surfxml_host_state = A_surfxml_host_state_ON;
  52   SURFXML_BUFFER_SET(host_state_file, "");
  53   SURFXML_BUFFER_SET(host_interference_send, "1.0");
  54   SURFXML_BUFFER_SET(host_interference_recv, "1.0");
  55   SURFXML_BUFFER_SET(host_interference_send_recv, "1.0");
  56   SURFXML_BUFFER_SET(host_max_outgoing_rate, "-1.0");
  57
  58   SURFXML_START_TAG(host);
  59   SURFXML_END_TAG(host);
  60
  61 /*   <link id="LinkA" bandwidth="10000000.0" latency="0.2"/> */
  62   SURFXML_BUFFER_SET(link_id, "LinkA");
  63   SURFXML_BUFFER_SET(link_bandwidth, "10000000.0");
  64   SURFXML_BUFFER_SET(link_bandwidth_file, "");
  65   SURFXML_BUFFER_SET(link_latency, "0.2");
  66   SURFXML_BUFFER_SET(link_latency_file, "");
  67   A_surfxml_link_state = A_surfxml_link_state_ON;
  68   SURFXML_BUFFER_SET(link_state_file, "");
  69   A_surfxml_link_sharing_policy = A_surfxml_link_sharing_policy_SHARED;
  70   SURFXML_START_TAG(link);
  71   SURFXML_END_TAG(link);
  72
  73 /*   <route src="host A" dst="host B"><link:ctn id="LinkA"/></route> */
  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   SURFXML_BUFFER_SET(route_src, "host B");
  91   SURFXML_BUFFER_SET(route_dst, "host A");
  92   SURFXML_BUFFER_SET(route_impact_on_src, "0.0");
  93   SURFXML_BUFFER_SET(route_impact_on_dst, "0.0");
  94   SURFXML_BUFFER_SET(route_impact_on_src_with_other_recv, "0.0");
  95   SURFXML_BUFFER_SET(route_impact_on_dst_with_other_send, "0.0");
  96
  97   SURFXML_START_TAG(route);
  98
  99   SURFXML_BUFFER_SET(link_c_ctn_id, "LinkA");
 100   SURFXML_START_TAG(link_c_ctn);
 101   SURFXML_END_TAG(link_c_ctn);
 102
 103   SURFXML_END_TAG(route);
 104 /* </platform_description> */
 105   SURFXML_END_TAG(platform_description);
 106
 107   free(surfxml_bufferstack);
 108   return 0;
 109 }
 110
 111 static int surf_parse_bypass_application(void) {
 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_description> */
 119   SURFXML_BUFFER_SET(platform_description_version,"2");
 120
 121   SURFXML_START_TAG(platform_description);
 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_description> */
 162   SURFXML_END_TAG(platform_description);
 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 = calloc(number_of_tasks, sizeof(m_task_t));
 201
 202     for (i = 0; i < number_of_tasks; i++) {
 203       sprintf(sprintf_buffer, "Task_%d", i);
 204       todo[i] = MSG_task_create(sprintf_buffer, task_comp_size, task_comm_size, NULL);
 205     }
 206   }
 207
 208   {                  /* Process organisation */
 209     slaves_count = argc - 4;
 210     slaves = calloc(slaves_count, sizeof(m_host_t));
 211
 212     for (i = 4; i < argc; i++) {
 213       slaves[i-4] = MSG_get_host_by_name(argv[i]);
 214       if(slaves[i-4]==NULL) {
 215         INFO1("Unknown host %s. Stopping Now! ", argv[i]);
 216         abort();
 217       }
 218     }
 219   }
 220
 221   INFO1("Got %d slave(s) :", slaves_count);
 222   for (i = 0; i < slaves_count; i++)
 223     INFO1("\t %s", slaves[i]->name);
 224
 225   INFO1("Got %d task to process :", number_of_tasks);
 226
 227   for (i = 0; i < number_of_tasks; i++)
 228     INFO1("\t\"%s\"", todo[i]->name);
 229
 230   for (i = 0; i < number_of_tasks; i++) {
 231     INFO2("Sending \"%s\" to \"%s\"",
 232                   todo[i]->name,
 233                   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],
 238                  PORT_22);
 239     INFO0("Send completed");
 240   }
 241
 242   INFO0("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    MSG_paje_output("msg_test.trace");
 288    surf_parse = surf_parse_bypass_platform;
 289    MSG_create_environment(NULL);
 290
 291    /*   Application deployment */
 292    MSG_function_register("master", master);
 293    MSG_function_register("slave", slave);
 294    surf_parse = surf_parse_bypass_application;
 295    MSG_launch_application(NULL);
 296
 297    res = MSG_main();
 298
 299   INFO1("Simulation time %g",MSG_get_clock());
 300   return res;
 301 } /* end_of_test_all */
 302
 303 /** Main function */
 304 int main(int argc, char *argv[])
 305 {
 306   MSG_error_t res = MSG_OK;
 307
 308   MSG_global_init(&argc,argv);
 309   res = test_all();
 310   MSG_clean();
 311
 312   if(res==MSG_OK) return 0;
 313   else return 1;
 314 } /* end_of_main */
 315