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 #include "xbt/xbt_os_time.h"
  13
  14 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(simix_environment, simix,
  15                                 "Logging specific to SIMIX (environment)");
  16
  17 /********************************* SIMIX **************************************/
  18
  19 /**
  20  * \brief A platform constructor.
  21  *
  22  * Creates a new platform, including hosts, links and the
  23  * routing_table.
  24  * \param file a filename of a xml description of a platform. This file
  25  * follows this DTD :
  26  *
  27  *     \include surfxml.dtd
  28  *
  29  * Here is a small example of such a platform
  30  *
  31  *     \include small_platform.xml
  32  *
  33  */
  34 void SIMIX_create_environment(const char *file)
  35 {
  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   double start, end;
  42
  43   simix_config_init();          /* make sure that our configuration set is created */
  44   surf_timer_model_init(file);
  45
  46   /* which model do you want today? */
  47   workstation_model_name =
  48     xbt_cfg_get_string(_simix_cfg_set, "workstation_model");
  49
  50   DEBUG1("Model : %s", workstation_model_name);
  51   workstation_id =
  52     find_model_description(surf_workstation_model_description,
  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                              network_model_name);
  90     cpu_id =
  91       find_model_description(surf_cpu_model_description, cpu_model_name);
  92
  93     surf_cpu_model_description[cpu_id].model_init(file);
  94     surf_network_model_description[network_id].model_init(file);
  95
  96
  97   }
  98   surf_workstation_model_description[workstation_id].model_init(file);
  99
 100   start = xbt_os_time();
 101   parse_platform_file(file);
 102
 103   if (surf_workstation_model_description[workstation_id].create_ws != NULL)
 104     surf_workstation_model_description[workstation_id].create_ws();
 105   end = xbt_os_time();
 106   DEBUG1("PARSE TIME: %lg", (end - start));
 107
 108   _simix_init_status = 2;       /* inited; don't change settings now */
 109
 110   xbt_dict_foreach(workstation_set, cursor, name, workstation) {
 111     __SIMIX_host_create(name, workstation, NULL);
 112   }
 113
 114   return;
 115 }