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   int parsed = 0;
  36   xbt_dict_cursor_t cursor = NULL;
  37   char *name = NULL;
  38   void *workstation = NULL;
  39   char *workstation_model_name;
  40   int workstation_id = -1;
  41
  42   simix_config_init();          /* make sure that our configuration set is created */
  43   surf_timer_model_init(file);
  44
  45   /* which model do you want today? */
  46   workstation_model_name =
  47       xbt_cfg_get_string(_simix_cfg_set, "workstation_model");
  48
  49   DEBUG1("Model : %s", workstation_model_name);
  50   workstation_id =
  51       find_model_description(surf_workstation_model_description,
  52                                 surf_workstation_model_description_size,
  53                                 workstation_model_name);
  54   if (!strcmp(workstation_model_name, "compound")) {
  55     xbt_ex_t e;
  56     char *network_model_name = NULL;
  57     char *cpu_model_name = NULL;
  58     int network_id = -1;
  59     int cpu_id = -1;
  60
  61     TRY {
  62       cpu_model_name = xbt_cfg_get_string(_simix_cfg_set, "cpu_model");
  63     } CATCH(e) {
  64       if (e.category == bound_error) {
  65         xbt_assert0(0,
  66                     "Set a cpu model to use with the 'compound' workstation model");
  67         xbt_ex_free(e);
  68       } else {
  69         RETHROW;
  70       }
  71     }
  72
  73     TRY {
  74       network_model_name =
  75           xbt_cfg_get_string(_simix_cfg_set, "network_model");
  76     }
  77     CATCH(e) {
  78       if (e.category == bound_error) {
  79         xbt_assert0(0,
  80                     "Set a network model to use with the 'compound' workstation model");
  81         xbt_ex_free(e);
  82       } else {
  83         RETHROW;
  84       }
  85     }
  86
  87     network_id =
  88         find_model_description(surf_network_model_description,
  89                                   surf_network_model_description_size,
  90                                   network_model_name);
  91     cpu_id =
  92         find_model_description(surf_cpu_model_description,
  93                                   surf_cpu_model_description_size,
  94                                   cpu_model_name);
  95
  96     surf_cpu_model_description[cpu_id].model_init(file);
  97     surf_network_model_description[network_id].model_init(file);
  98
  99     parse_platform_file(file);
 100     parsed = 1;
 101   }
 102
 103
 104
 105   surf_workstation_model_description[workstation_id].
 106       model_init(file);
 107
 108   if  (!parsed) parse_platform_file(file);
 109
 110   _simix_init_status = 2;       /* inited; don't change settings now */
 111
 112   xbt_dict_foreach(workstation_set, cursor, name, workstation) {
 113     __SIMIX_host_create(name, workstation, NULL);
 114   }
 115
 116   return;
 117 }