1 /* Copyright (c) 2013-2017. The SimGrid Team. All rights reserved. */
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. */
6 #include "storage_n11.hpp"
7 #include "simgrid/s4u/Engine.hpp"
8 #include "src/kernel/routing/NetPoint.hpp"
9 #include <math.h> /*ceil*/
11 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_storage);
16 extern std::map<std::string, storage_type_t> storage_types;
18 static void check_disk_attachment()
20 for (auto s : *simgrid::surf::StorageImpl::storagesMap()) {
21 simgrid::kernel::routing::NetPoint* host_elm = sg_netpoint_by_name_or_null(s.second->attach_.c_str());
23 surf_parse_error("Unable to attach storage %s: host %s does not exist.", s.second->cname(),
24 s.second->attach_.c_str());
26 s.second->piface_.attached_to_ = sg_host_by_name(s.second->attach_.c_str());
30 void storage_register_callbacks()
32 simgrid::s4u::onPlatformCreated.connect(check_disk_attachment);
33 instr_routing_define_callbacks();
40 void surf_storage_model_init_default()
42 surf_storage_model = new simgrid::surf::StorageN11Model();
43 all_existing_models->push_back(surf_storage_model);
49 StorageImpl* StorageN11Model::createStorage(const char* id, const char* type_id, const char* content_name,
52 storage_type_t storage_type = storage_types.at(type_id);
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);
59 StorageImpl* storage = new StorageN11(this, id, maxminSystem_, Bread, Bwrite, type_id, (char*)content_name,
60 storage_type->size, (char*)attach);
61 storageCreatedCallbacks(storage);
63 XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s'\n\t\tBread '%f'\n", id, type_id, Bread);
65 p_storageList.push_back(storage);
70 double StorageN11Model::nextOccuringEvent(double now)
72 return StorageModel::nextOccuringEventFull(now);
75 void StorageN11Model::updateActionsState(double /*now*/, double delta)
78 ActionList *actionSet = getRunningActionSet();
79 for(ActionList::iterator it(actionSet->begin()), itNext=it, itend(actionSet->end())
80 ; it != itend ; it=itNext) {
83 StorageAction *action = static_cast<StorageAction*>(&*it);
85 if (action->type_ == WRITE) {
86 // Update the disk usage
87 // Update the file size
88 // For each action of type write
89 double current_progress = delta * lmm_variable_getvalue(action->getVariable());
90 long int incr = current_progress;
92 XBT_DEBUG("%s:\n\t progress = %.2f, current_progress = %.2f, incr = %ld, lrint(1) = %ld, lrint(2) = %ld",
93 action->file_->cname(), action->progress_, current_progress, incr,
94 lrint(action->progress_ + current_progress), lrint(action->progress_) + incr);
96 /* take care of rounding error accumulation */
97 if (lrint(action->progress_ + current_progress) > lrint(action->progress_) + incr)
100 action->progress_ += current_progress;
102 action->storage_->usedSize_ += incr; // disk usage
103 action->file_->incrPosition(incr); // current_position
104 // which becomes the new file size
105 action->file_->setSize(action->file_->tell());
107 action->storage_->content_->erase(action->file_->cname());
108 action->storage_->content_->insert({action->file_->cname(), action->file_->size()});
111 action->updateRemains(lmm_variable_getvalue(action->getVariable()) * delta);
113 if (action->getMaxDuration() > NO_MAX_DURATION)
114 action->updateMaxDuration(delta);
116 if (action->getRemainsNoUpdate() > 0 && lmm_get_variable_weight(action->getVariable()) > 0 &&
117 action->storage_->usedSize_ == action->storage_->size_) {
119 action->setState(Action::State::failed);
120 } else if (((action->getRemainsNoUpdate() <= 0) && (lmm_get_variable_weight(action->getVariable()) > 0)) ||
121 ((action->getMaxDuration() > NO_MAX_DURATION) && (action->getMaxDuration() <= 0))) {
123 action->setState(Action::State::done);
132 StorageN11::StorageN11(StorageModel* model, const char* name, lmm_system_t maxminSystem, double bread, double bwrite,
133 const char* type_id, char* content_name, sg_size_t size, char* attach)
134 : StorageImpl(model, name, maxminSystem, bread, bwrite, type_id, content_name, size, attach)
136 XBT_DEBUG("Create resource with Bread '%f' Bwrite '%f' and Size '%llu'", bread, bwrite, size);
137 simgrid::s4u::Storage::onCreation(this->piface_);
140 StorageAction *StorageN11::open(const char* mount, const char* path)
142 XBT_DEBUG("\tOpen file '%s'",path);
145 // if file does not exist create an empty file
146 if (content_->find(path) != content_->end())
147 size = content_->at(path);
150 content_->insert({path, size});
151 XBT_DEBUG("File '%s' was not found, file created.",path);
153 FileImpl* file = new FileImpl(path, mount, size);
155 StorageAction* action = new StorageN11Action(model(), 0, isOff(), this, OPEN);
156 action->file_ = file;
161 StorageAction *StorageN11::close(surf_file_t fd)
163 XBT_DEBUG("\tClose file '%s' size '%llu'", fd->cname(), fd->size());
164 StorageAction* action = new StorageN11Action(model(), 0, isOff(), this, CLOSE);
168 StorageAction *StorageN11::read(surf_file_t fd, sg_size_t size)
170 if (fd->tell() + size > fd->size()) {
171 if (fd->tell() > fd->size()) {
174 size = fd->size() - fd->tell();
176 fd->setPosition(fd->size());
179 fd->incrPosition(size);
181 StorageAction* action = new StorageN11Action(model(), size, isOff(), this, READ);
185 StorageAction *StorageN11::write(surf_file_t fd, sg_size_t size)
187 XBT_DEBUG("\tWrite file '%s' size '%llu/%llu'", fd->cname(), size, fd->size());
189 StorageAction* action = new StorageN11Action(model(), size, isOff(), this, WRITE);
191 /* Substract the part of the file that might disappear from the used sized on the storage element */
192 usedSize_ -= (fd->size() - fd->tell());
193 // If the storage is full before even starting to write
194 if(usedSize_==size_) {
195 action->setState(Action::State::failed);
204 StorageN11Action::StorageN11Action(Model* model, double cost, bool failed, StorageImpl* storage,
205 e_surf_action_storage_type_t type)
206 : StorageAction(model, cost, failed, lmm_variable_new(model->getMaxminSystem(), this, 1.0, -1.0, 3), storage, type)
208 XBT_IN("(%s,%g", storage->cname(), cost);
210 // Must be less than the max bandwidth for all actions
211 lmm_expand(model->getMaxminSystem(), storage->constraint(), getVariable(), 1.0);
216 lmm_expand(model->getMaxminSystem(), storage->constraintRead_, getVariable(), 1.0);
219 lmm_expand(model->getMaxminSystem(), storage->constraintWrite_, getVariable(), 1.0);
227 int StorageN11Action::unref()
231 if (action_hook.is_linked())
232 stateSet_->erase(stateSet_->iterator_to(*this));
234 lmm_variable_free(getModel()->getMaxminSystem(), getVariable());
235 xbt_free(getCategory());
242 void StorageN11Action::cancel()
244 setState(Action::State::failed);
247 void StorageN11Action::suspend()
249 XBT_IN("(%p)", this);
250 if (suspended_ != 2) {
251 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), 0.0);
257 void StorageN11Action::resume()
262 bool StorageN11Action::isSuspended()
264 return suspended_ == 1;
267 void StorageN11Action::setMaxDuration(double /*duration*/)
272 void StorageN11Action::setSharingWeight(double /*priority*/)