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(std::string id, std::string type_id, std::string content_name,
  50                                             std::string attach)
  51 {
  52   storage_type_t storage_type = storage_types.at(type_id);
  53
  54   double Bread = surf_parse_get_bandwidth(storage_type->model_properties->at("Bread").c_str(),
  55                                           "property Bread, storage", type_id.c_str());
  56   double Bwrite = surf_parse_get_bandwidth(storage_type->model_properties->at("Bwrite").c_str(),
  57                                            "property Bwrite, storage", type_id.c_str());
  58
  59   StorageImpl* storage =
  60       new StorageN11(this, id, maxminSystem_, Bread, Bwrite, type_id, content_name, storage_type->size, 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.c_str(), type_id.c_str(),
  64             Bread);
  65
  66   p_storageList.push_back(storage);
  67
  68   return storage;
  69 }
  70
  71 double StorageN11Model::nextOccuringEvent(double now)
  72 {
  73   return StorageModel::nextOccuringEventFull(now);
  74 }
  75
  76 void StorageN11Model::updateActionsState(double /*now*/, double delta)
  77 {
  78   ActionList *actionSet = getRunningActionSet();
  79   for (ActionList::iterator it(actionSet->begin()), itNext = it, itend(actionSet->end()); it != itend; it = itNext) {
  80     ++itNext;
  81
  82     StorageAction *action = static_cast<StorageAction*>(&*it);
  83
  84     double current_progress = lrint(lmm_variable_getvalue(action->getVariable()) * delta);
  85
  86     action->updateRemains(current_progress);
  87     if (action->type_ == WRITE) {
  88       action->storage_->usedSize_ += current_progress;
  89       action->file_->incrPosition(current_progress);
  90       action->file_->setSize(action->file_->tell());
  91
  92       action->storage_->getContent()->erase(action->file_->cname());
  93       action->storage_->getContent()->insert({action->file_->cname(), action->file_->size()});
  94     }
  95
  96     if (action->getMaxDuration() > NO_MAX_DURATION)
  97       action->updateMaxDuration(delta);
  98
  99     if (action->getRemainsNoUpdate() > 0 && lmm_get_variable_weight(action->getVariable()) > 0 &&
 100         action->storage_->usedSize_ == action->storage_->getSize()) {
 101       action->finish();
 102       action->setState(Action::State::failed);
 103     } else if (((action->getRemainsNoUpdate() <= 0) && (lmm_get_variable_weight(action->getVariable()) > 0)) ||
 104                ((action->getMaxDuration() > NO_MAX_DURATION) && (action->getMaxDuration() <= 0))) {
 105       action->finish();
 106       action->setState(Action::State::done);
 107     }
 108   }
 109 }
 110
 111 /************
 112  * Resource *
 113  ************/
 114
 115 StorageN11::StorageN11(StorageModel* model, std::string name, lmm_system_t maxminSystem, double bread, double bwrite,
 116                        std::string type_id, std::string content_name, sg_size_t size, std::string attach)
 117     : StorageImpl(model, name, maxminSystem, bread, bwrite, type_id, content_name, size, attach)
 118 {
 119   XBT_DEBUG("Create resource with Bread '%f' Bwrite '%f' and Size '%llu'", bread, bwrite, size);
 120   simgrid::s4u::Storage::onCreation(this->piface_);
 121 }
 122
 123 StorageAction* StorageN11::read(sg_size_t size)
 124 {
 125   return new StorageN11Action(model(), size, isOff(), this, READ);
 126 }
 127
 128 StorageAction* StorageN11::write(sg_size_t size)
 129 {
 130   return new StorageN11Action(model(), size, isOff(), this, WRITE);
 131 }
 132
 133 /**********
 134  * Action *
 135  **********/
 136
 137 StorageN11Action::StorageN11Action(Model* model, double cost, bool failed, StorageImpl* storage,
 138                                    e_surf_action_storage_type_t type)
 139     : StorageAction(model, cost, failed, lmm_variable_new(model->getMaxminSystem(), this, 1.0, -1.0, 3), storage, type)
 140 {
 141   XBT_IN("(%s,%g", storage->cname(), cost);
 142
 143   // Must be less than the max bandwidth for all actions
 144   lmm_expand(model->getMaxminSystem(), storage->constraint(), getVariable(), 1.0);
 145   switch(type) {
 146   case READ:
 147     lmm_expand(model->getMaxminSystem(), storage->constraintRead_, getVariable(), 1.0);
 148     break;
 149   case WRITE:
 150     lmm_expand(model->getMaxminSystem(), storage->constraintWrite_, getVariable(), 1.0);
 151     break;
 152   default:
 153     THROW_UNIMPLEMENTED;
 154   }
 155   XBT_OUT();
 156 }
 157
 158 int StorageN11Action::unref()
 159 {
 160   refcount_--;
 161   if (not refcount_) {
 162     if (action_hook.is_linked())
 163       stateSet_->erase(stateSet_->iterator_to(*this));
 164     if (getVariable())
 165       lmm_variable_free(getModel()->getMaxminSystem(), getVariable());
 166     xbt_free(getCategory());
 167     delete this;
 168     return 1;
 169   }
 170   return 0;
 171 }
 172
 173 void StorageN11Action::cancel()
 174 {
 175   setState(Action::State::failed);
 176 }
 177
 178 void StorageN11Action::suspend()
 179 {
 180   XBT_IN("(%p)", this);
 181   if (suspended_ != 2) {
 182     lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), 0.0);
 183     suspended_ = 1;
 184   }
 185   XBT_OUT();
 186 }
 187
 188 void StorageN11Action::resume()
 189 {
 190   THROW_UNIMPLEMENTED;
 191 }
 192
 193 bool StorageN11Action::isSuspended()
 194 {
 195   return suspended_ == 1;
 196 }
 197
 198 void StorageN11Action::setMaxDuration(double /*duration*/)
 199 {
 200   THROW_UNIMPLEMENTED;
 201 }
 202
 203 void StorageN11Action::setSharingWeight(double /*priority*/)
 204 {
 205   THROW_UNIMPLEMENTED;
 206 }
 207
 208 }
 209 }