src/surf/storage_n11.cpp

   1 /* Copyright (c) 2013-2017. The SimGrid Team. All rights reserved.          */
   2
   3 /* This program is free software; you can redistribute it and/or modify it
   4  * under the terms of the license (GNU LGPL) which comes with this package. */
   5
   6 #include "storage_n11.hpp"
   7 #include "simgrid/s4u/Engine.hpp"
   8 #include "src/kernel/routing/NetPoint.hpp"
   9 #include <math.h> /*ceil*/
  10
  11 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_storage);
  12
  13 /*************
  14  * CallBacks *
  15  *************/
  16 extern std::map<std::string, storage_type_t> storage_types;
  17
  18 static void check_disk_attachment()
  19 {
  20   for (auto s : *simgrid::surf::StorageImpl::storagesMap()) {
  21     simgrid::kernel::routing::NetPoint* host_elm = sg_netpoint_by_name_or_null(s.second->getHost().c_str());
  22     if (not host_elm)
  23       surf_parse_error("Unable to attach storage %s: host %s does not exist.", s.second->cname(),
  24                        s.second->getHost().c_str());
  25     else
  26       s.second->piface_.attached_to_ = sg_host_by_name(s.second->getHost().c_str());
  27   }
  28 }
  29
  30 void storage_register_callbacks()
  31 {
  32   simgrid::s4u::onPlatformCreated.connect(check_disk_attachment);
  33   instr_routing_define_callbacks();
  34 }
  35
  36 /*********
  37  * Model *
  38  *********/
  39
  40 void surf_storage_model_init_default()
  41 {
  42   surf_storage_model = new simgrid::surf::StorageN11Model();
  43   all_existing_models->push_back(surf_storage_model);
  44 }
  45
  46 namespace simgrid {
  47 namespace surf {
  48
  49 StorageImpl* StorageN11Model::createStorage(const char* id, const char* type_id, const char* content_name,
  50                                             const char* attach)
  51 {
  52   storage_type_t storage_type = storage_types.at(type_id);
  53
  54   double Bread =
  55       surf_parse_get_bandwidth(storage_type->model_properties->at("Bread").c_str(), "property Bread, storage", type_id);
  56   double Bwrite = surf_parse_get_bandwidth(storage_type->model_properties->at("Bwrite").c_str(),
  57                                            "property Bwrite, storage", type_id);
  58
  59   StorageImpl* storage = new StorageN11(this, id, maxminSystem_, Bread, Bwrite, type_id, (char*)content_name,
  60                                         storage_type->size, (char*)attach);
  61   storageCreatedCallbacks(storage);
  62
  63   XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s'\n\t\tBread '%f'\n", id, type_id, Bread);
  64
  65   p_storageList.push_back(storage);
  66
  67   return storage;
  68 }
  69
  70 double StorageN11Model::nextOccuringEvent(double now)
  71 {
  72   return StorageModel::nextOccuringEventFull(now);
  73 }
  74
  75 void StorageN11Model::updateActionsState(double /*now*/, double delta)
  76 {
  77   ActionList *actionSet = getRunningActionSet();
  78   for (ActionList::iterator it(actionSet->begin()), itNext = it, itend(actionSet->end()); it != itend; it = itNext) {
  79     ++itNext;
  80
  81     StorageAction *action = static_cast<StorageAction*>(&*it);
  82
  83     double current_progress = lrint(lmm_variable_getvalue(action->getVariable()) * delta);
  84
  85     action->updateRemains(current_progress);
  86     if (action->type_ == WRITE) {
  87       action->storage_->usedSize_ += current_progress;
  88       action->file_->incrPosition(current_progress);
  89       action->file_->setSize(action->file_->tell());
  90
  91       action->storage_->getContent()->erase(action->file_->cname());
  92       action->storage_->getContent()->insert({action->file_->cname(), action->file_->size()});
  93     }
  94
  95     if (action->getMaxDuration() > NO_MAX_DURATION)
  96       action->updateMaxDuration(delta);
  97
  98     if (action->getRemainsNoUpdate() > 0 && lmm_get_variable_weight(action->getVariable()) > 0 &&
  99         action->storage_->usedSize_ == action->storage_->getSize()) {
 100       action->finish();
 101       action->setState(Action::State::failed);
 102     } else if (((action->getRemainsNoUpdate() <= 0) && (lmm_get_variable_weight(action->getVariable()) > 0)) ||
 103                ((action->getMaxDuration() > NO_MAX_DURATION) && (action->getMaxDuration() <= 0))) {
 104       action->finish();
 105       action->setState(Action::State::done);
 106     }
 107   }
 108 }
 109
 110 /************
 111  * Resource *
 112  ************/
 113
 114 StorageN11::StorageN11(StorageModel* model, const char* name, lmm_system_t maxminSystem, double bread, double bwrite,
 115                        const char* type_id, char* content_name, sg_size_t size, char* attach)
 116     : StorageImpl(model, name, maxminSystem, bread, bwrite, type_id, content_name, size, attach)
 117 {
 118   XBT_DEBUG("Create resource with Bread '%f' Bwrite '%f' and Size '%llu'", bread, bwrite, size);
 119   simgrid::s4u::Storage::onCreation(this->piface_);
 120 }
 121
 122 StorageAction* StorageN11::read(sg_size_t size)
 123 {
 124   return new StorageN11Action(model(), size, isOff(), this, READ);
 125 }
 126
 127 StorageAction* StorageN11::write(sg_size_t size)
 128 {
 129   return new StorageN11Action(model(), size, isOff(), this, WRITE);
 130 }
 131
 132 /**********
 133  * Action *
 134  **********/
 135
 136 StorageN11Action::StorageN11Action(Model* model, double cost, bool failed, StorageImpl* storage,
 137                                    e_surf_action_storage_type_t type)
 138     : StorageAction(model, cost, failed, lmm_variable_new(model->getMaxminSystem(), this, 1.0, -1.0, 3), storage, type)
 139 {
 140   XBT_IN("(%s,%g", storage->cname(), cost);
 141
 142   // Must be less than the max bandwidth for all actions
 143   lmm_expand(model->getMaxminSystem(), storage->constraint(), getVariable(), 1.0);
 144   switch(type) {
 145   case READ:
 146     lmm_expand(model->getMaxminSystem(), storage->constraintRead_, getVariable(), 1.0);
 147     break;
 148   case WRITE:
 149     lmm_expand(model->getMaxminSystem(), storage->constraintWrite_, getVariable(), 1.0);
 150     break;
 151   default:
 152     THROW_UNIMPLEMENTED;
 153   }
 154   XBT_OUT();
 155 }
 156
 157 int StorageN11Action::unref()
 158 {
 159   refcount_--;
 160   if (not refcount_) {
 161     if (action_hook.is_linked())
 162       stateSet_->erase(stateSet_->iterator_to(*this));
 163     if (getVariable())
 164       lmm_variable_free(getModel()->getMaxminSystem(), getVariable());
 165     xbt_free(getCategory());
 166     delete this;
 167     return 1;
 168   }
 169   return 0;
 170 }
 171
 172 void StorageN11Action::cancel()
 173 {
 174   setState(Action::State::failed);
 175 }
 176
 177 void StorageN11Action::suspend()
 178 {
 179   XBT_IN("(%p)", this);
 180   if (suspended_ != 2) {
 181     lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), 0.0);
 182     suspended_ = 1;
 183   }
 184   XBT_OUT();
 185 }
 186
 187 void StorageN11Action::resume()
 188 {
 189   THROW_UNIMPLEMENTED;
 190 }
 191
 192 bool StorageN11Action::isSuspended()
 193 {
 194   return suspended_ == 1;
 195 }
 196
 197 void StorageN11Action::setMaxDuration(double /*duration*/)
 198 {
 199   THROW_UNIMPLEMENTED;
 200 }
 201
 202 void StorageN11Action::setSharingWeight(double /*priority*/)
 203 {
 204   THROW_UNIMPLEMENTED;
 205 }
 206
 207 }
 208 }