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