src/surf/host_clm03.cpp

   1 /* Copyright (c) 2013-2015. The SimGrid Team.
   2  * All rights reserved.                                                     */
   3
   4 /* This program is free software; you can redistribute it and/or modify it
   5  * under the terms of the license (GNU LGPL) which comes with this package. */
   6
   7 #include <cstdlib>
   8
   9 #include <algorithm>
  10
  11 #include "host_clm03.hpp"
  12
  13 #include "cpu_cas01.hpp"
  14 #include "simgrid/sg_config.h"
  15 #include "virtual_machine.hpp"
  16
  17 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_host);
  18
  19 /*************
  20  * CallBacks *
  21  *************/
  22
  23 /*********
  24  * Model *
  25  *********/
  26
  27 void surf_host_model_init_current_default(void)
  28 {
  29   surf_host_model = new simgrid::surf::HostCLM03Model();
  30   xbt_cfg_setdefault_boolean(_sg_cfg_set, "network/crosstraffic", "yes");
  31   surf_cpu_model_init_Cas01();
  32   surf_network_model_init_LegrandVelho();
  33
  34   xbt_dynar_push(all_existing_models, &surf_host_model);
  35 }
  36
  37 void surf_host_model_init_compound()
  38 {
  39   xbt_assert(surf_cpu_model_pm, "No CPU model defined yet!");
  40   xbt_assert(surf_network_model, "No network model defined yet!");
  41
  42   surf_host_model = new simgrid::surf::HostCLM03Model();
  43   xbt_dynar_push(all_existing_models, &surf_host_model);
  44 }
  45
  46 namespace simgrid {
  47 namespace surf {
  48
  49 double HostCLM03Model::shareResources(double now){
  50   adjustWeightOfDummyCpuActions();
  51
  52   double min_by_cpu = surf_cpu_model_pm->shareResources(now);
  53   double min_by_net = surf_network_model->shareResourcesIsIdempotent() ? surf_network_model->shareResources(now) : -1;
  54   double min_by_sto = surf_storage_model->shareResources(now);
  55
  56   XBT_DEBUG("model %p, %s min_by_cpu %f, %s min_by_net %f, %s min_by_sto %f",
  57       this, typeid(surf_cpu_model_pm).name(), min_by_cpu,
  58                 typeid(surf_network_model).name(), min_by_net,
  59                         typeid(surf_storage_model).name(), min_by_sto);
  60
  61   double res = std::max(std::max(min_by_cpu, min_by_net), min_by_sto);
  62   if (min_by_cpu >= 0.0 && min_by_cpu < res)
  63         res = min_by_cpu;
  64   if (min_by_net >= 0.0 && min_by_net < res)
  65         res = min_by_net;
  66   if (min_by_sto >= 0.0 && min_by_sto < res)
  67         res = min_by_sto;
  68   return res;
  69 }
  70
  71 void HostCLM03Model::updateActionsState(double /*now*/, double /*delta*/){
  72   return;
  73 }
  74
  75 Action *HostCLM03Model::executeParallelTask(int host_nb,
  76                                         sg_host_t *host_list,
  77                                         double *flops_amount,
  78                                         double *bytes_amount,
  79                                         double rate){
  80 #define cost_or_zero(array,pos) ((array)?(array)[pos]:0.0)
  81   Action *action =NULL;
  82   if ((host_nb == 1)
  83       && (cost_or_zero(bytes_amount, 0) == 0.0)){
  84     action = host_list[0]->p_cpu->execute(flops_amount[0]);
  85   } else if ((host_nb == 1)
  86            && (cost_or_zero(flops_amount, 0) == 0.0)) {
  87     action = surf_network_model->communicate(host_list[0]->p_netcard,
  88                                                  host_list[0]->p_netcard,
  89                                                                                          bytes_amount[0], rate);
  90   } else if ((host_nb == 2)
  91              && (cost_or_zero(flops_amount, 0) == 0.0)
  92              && (cost_or_zero(flops_amount, 1) == 0.0)) {
  93     int i,nb = 0;
  94     double value = 0.0;
  95
  96     for (i = 0; i < host_nb * host_nb; i++) {
  97       if (cost_or_zero(bytes_amount, i) > 0.0) {
  98         nb++;
  99         value = cost_or_zero(bytes_amount, i);
 100       }
 101     }
 102     if (nb == 1){
 103       action = surf_network_model->communicate(host_list[0]->p_netcard,
 104                                                    host_list[1]->p_netcard,
 105                                                                                            value, rate);
 106     }
 107   } else
 108     THROW_UNIMPLEMENTED;      /* This model does not implement parallel tasks for more than 2 hosts */
 109 #undef cost_or_zero
 110   xbt_free(host_list);
 111   return action;
 112 }
 113
 114 }
 115 }