src/simix/smx_environment.c

   1 /*      $Id$     */
   2
   3 /* Copyright (c) 2007 Arnaud Legrand, Bruno Donnassolo.
   4    All rights reserved.                                          */
   5
   6 /* This program is free software; you can redistribute it and/or modify it
   7  * under the terms of the license (GNU LGPL) which comes with this package. */
   8
   9 #include "private.h"
  10 #include "xbt/sysdep.h"
  11 #include "xbt/log.h"
  12
  13 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_environment, simix,
  14                                 "Logging specific to SIMIX (environment)");
  15
  16 /********************************* SIMIX **************************************/
  17
  18 /**
  19  * \brief A platform constructor.
  20  *
  21  * Creates a new platform, including hosts, links and the
  22  * routing_table.
  23  * \param file a filename of a xml description of a platform. This file
  24  * follows this DTD :
  25  *
  26  *     \include surfxml.dtd
  27  *
  28  * Here is a small example of such a platform
  29  *
  30  *     \include small_platform.xml
  31  *
  32  */
  33 void SIMIX_create_environment(const char *file)
  34 {
  35   xbt_dict_cursor_t cursor = NULL;
  36   char *name = NULL;
  37   void *workstation = NULL;
  38   char *workstation_model_name;
  39   int workstation_id = -1;
  40
  41   simix_config_init();          /* make sure that our configuration set is created */
  42   surf_timer_model_init(file);
  43
  44   /* which model do you want today? */
  45   workstation_model_name =
  46       xbt_cfg_get_string(_simix_cfg_set, "workstation_model");
  47
  48   DEBUG1("Model : %s", workstation_model_name);
  49   workstation_id =
  50       find_model_description(surf_workstation_model_description,
  51                                 surf_workstation_model_description_size,
  52                                 workstation_model_name);
  53   if (!strcmp(workstation_model_name, "compound")) {
  54     xbt_ex_t e;
  55     char *network_model_name = NULL;
  56     char *cpu_model_name = NULL;
  57     int network_id = -1;
  58     int cpu_id = -1;
  59
  60     TRY {
  61       cpu_model_name = xbt_cfg_get_string(_simix_cfg_set, "cpu_model");
  62     } CATCH(e) {
  63       if (e.category == bound_error) {
  64         xbt_assert0(0,
  65                     "Set a cpu model to use with the 'compound' workstation model");
  66         xbt_ex_free(e);
  67       } else {
  68         RETHROW;
  69       }
  70     }
  71
  72     TRY {
  73       network_model_name =
  74           xbt_cfg_get_string(_simix_cfg_set, "network_model");
  75     }
  76     CATCH(e) {
  77       if (e.category == bound_error) {
  78         xbt_assert0(0,
  79                     "Set a network model to use with the 'compound' workstation model");
  80         xbt_ex_free(e);
  81       } else {
  82         RETHROW;
  83       }
  84     }
  85
  86     network_id =
  87         find_model_description(surf_network_model_description,
  88                                   surf_network_model_description_size,
  89                                   network_model_name);
  90     cpu_id =
  91         find_model_description(surf_cpu_model_description,
  92                                   surf_cpu_model_description_size,
  93                                   cpu_model_name);
  94
  95     surf_cpu_model_description[cpu_id].model_init(file);
  96     surf_network_model_description[network_id].model_init(file);
  97
  98   }
  99
 100   surf_workstation_model_description[workstation_id].
 101       model_init(file);
 102
 103   /* Parse the platform file */
 104   parse_platform_file(file);
 105
 106   _simix_init_status = 2;       /* inited; don't change settings now */
 107
 108   xbt_dict_foreach(workstation_set, cursor, name, workstation) {
 109     __SIMIX_host_create(name, workstation, NULL);
 110   }
 111
 112   return;
 113 }