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_);
23 surf_parse_error("Unable to attach storage %s: host %s does not exist.", s.second->cname(), s.second->attach_);
27 void storage_register_callbacks()
29 simgrid::s4u::onPlatformCreated.connect(check_disk_attachment);
30 instr_routing_define_callbacks();
37 void surf_storage_model_init_default()
39 surf_storage_model = new simgrid::surf::StorageN11Model();
40 all_existing_models->push_back(surf_storage_model);
46 StorageImpl* StorageN11Model::createStorage(const char* id, const char* type_id, const char* content_name,
49 storage_type_t storage_type = storage_types.at(type_id);
52 surf_parse_get_bandwidth(storage_type->model_properties->at("Bread").c_str(), "property Bread, storage", type_id);
53 double Bwrite = surf_parse_get_bandwidth(storage_type->model_properties->at("Bwrite").c_str(),
54 "property Bwrite, storage", type_id);
56 StorageImpl* storage = new StorageN11(this, id, maxminSystem_, Bread, Bwrite, type_id, (char*)content_name,
57 storage_type->size, (char*)attach);
58 storageCreatedCallbacks(storage);
60 XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s'\n\t\tBread '%f'\n", id, type_id, Bread);
62 p_storageList.push_back(storage);
67 double StorageN11Model::nextOccuringEvent(double now)
69 double min_completion = StorageModel::nextOccuringEventFull(now);
71 for(auto storage: p_storageList) {
73 // Foreach write action on that disk
74 for (auto write_action: storage->writeActions_) {
75 rate += lmm_variable_getvalue(write_action->getVariable());
78 min_completion = MIN(min_completion, (storage->size_-storage->usedSize_)/rate);
81 return min_completion;
84 void StorageN11Model::updateActionsState(double /*now*/, double delta)
87 ActionList *actionSet = getRunningActionSet();
88 for(ActionList::iterator it(actionSet->begin()), itNext=it, itend(actionSet->end())
89 ; it != itend ; it=itNext) {
92 StorageAction *action = static_cast<StorageAction*>(&*it);
94 if (action->type_ == WRITE) {
95 // Update the disk usage
96 // Update the file size
97 // For each action of type write
98 double current_progress = delta * lmm_variable_getvalue(action->getVariable());
99 long int incr = current_progress;
101 XBT_DEBUG("%s:\n\t progress = %.2f, current_progress = %.2f, incr = %ld, lrint(1) = %ld, lrint(2) = %ld",
102 action->file_->name, action->progress_, current_progress, incr,
103 lrint(action->progress_ + current_progress), lrint(action->progress_) + incr);
105 /* take care of rounding error accumulation */
106 if (lrint(action->progress_ + current_progress) > lrint(action->progress_) + incr)
109 action->progress_ += current_progress;
111 action->storage_->usedSize_ += incr; // disk usage
112 action->file_->current_position += incr; // current_position
113 // which becomes the new file size
114 action->file_->size = action->file_->current_position;
116 sg_size_t* psize = new sg_size_t;
117 *psize = action->file_->size;
118 std::map<std::string, sg_size_t*>* content_dict = action->storage_->content_;
119 auto entry = content_dict->find(action->file_->name);
120 delete entry->second;
121 entry->second = psize;
124 action->updateRemains(lmm_variable_getvalue(action->getVariable()) * delta);
126 if (action->getMaxDuration() > NO_MAX_DURATION)
127 action->updateMaxDuration(delta);
129 if (action->getRemainsNoUpdate() > 0 && lmm_get_variable_weight(action->getVariable()) > 0 &&
130 action->storage_->usedSize_ == action->storage_->size_) {
132 action->setState(Action::State::failed);
133 } else if (((action->getRemainsNoUpdate() <= 0) && (lmm_get_variable_weight(action->getVariable()) > 0)) ||
134 ((action->getMaxDuration() > NO_MAX_DURATION) && (action->getMaxDuration() <= 0))) {
136 action->setState(Action::State::done);
145 StorageN11::StorageN11(StorageModel* model, const char* name, lmm_system_t maxminSystem, double bread, double bwrite,
146 const char* type_id, char* content_name, sg_size_t size, char* attach)
147 : StorageImpl(model, name, maxminSystem, bread, bwrite, type_id, content_name, size, attach)
149 XBT_DEBUG("Create resource with Bread '%f' Bwrite '%f' and Size '%llu'", bread, bwrite, size);
150 simgrid::s4u::Storage::onCreation(this->piface_);
153 StorageAction *StorageN11::open(const char* mount, const char* path)
155 XBT_DEBUG("\tOpen file '%s'",path);
158 sg_size_t* psize = nullptr;
159 // if file does not exist create an empty file
160 if (content_->find(path) != content_->end())
161 size = *(content_->at(path));
163 psize = new sg_size_t;
166 content_->insert({path, psize});
167 XBT_DEBUG("File '%s' was not found, file created.",path);
169 surf_file_t file = xbt_new0(s_surf_file_t,1);
170 file->name = xbt_strdup(path);
172 file->mount = xbt_strdup(mount);
173 file->current_position = 0;
175 StorageAction* action = new StorageN11Action(model(), 0, isOff(), this, OPEN);
176 action->file_ = file;
181 StorageAction *StorageN11::close(surf_file_t fd)
183 XBT_DEBUG("\tClose file '%s' size '%llu'", fd->name, fd->size);
184 // unref write actions from storage
185 for (std::vector<StorageAction*>::iterator it = writeActions_.begin(); it != writeActions_.end();) {
186 StorageAction *write_action = *it;
187 if ((write_action->file_) == fd) {
188 write_action->unref();
189 it = writeActions_.erase(it);
197 StorageAction* action = new StorageN11Action(model(), 0, isOff(), this, CLOSE);
201 StorageAction *StorageN11::read(surf_file_t fd, sg_size_t size)
203 if(fd->current_position + size > fd->size){
204 if (fd->current_position > fd->size){
207 size = fd->size - fd->current_position;
209 fd->current_position = fd->size;
212 fd->current_position += size;
214 StorageAction* action = new StorageN11Action(model(), size, isOff(), this, READ);
218 StorageAction *StorageN11::write(surf_file_t fd, sg_size_t size)
220 char *filename = fd->name;
221 XBT_DEBUG("\tWrite file '%s' size '%llu/%llu'",filename,size,fd->size);
223 StorageAction* action = new StorageN11Action(model(), size, isOff(), this, WRITE);
225 /* Substract the part of the file that might disappear from the used sized on the storage element */
226 usedSize_ -= (fd->size - fd->current_position);
227 // If the storage is full before even starting to write
228 if(usedSize_==size_) {
229 action->setState(Action::State::failed);
238 StorageN11Action::StorageN11Action(Model* model, double cost, bool failed, StorageImpl* storage,
239 e_surf_action_storage_type_t type)
240 : StorageAction(model, cost, failed, lmm_variable_new(model->getMaxminSystem(), this, 1.0, -1.0, 3), storage, type)
242 XBT_IN("(%s,%g", storage->cname(), cost);
244 // Must be less than the max bandwidth for all actions
245 lmm_expand(model->getMaxminSystem(), storage->constraint(), getVariable(), 1.0);
252 lmm_expand(model->getMaxminSystem(), storage->constraintRead_, getVariable(), 1.0);
255 lmm_expand(model->getMaxminSystem(), storage->constraintWrite_, getVariable(), 1.0);
257 //TODO there is something annoying with what's below. Have to sort it out...
258 // Action *action = this;
259 // storage->p_writeActions->push_back(action);
268 int StorageN11Action::unref()
272 if (action_hook.is_linked())
273 stateSet_->erase(stateSet_->iterator_to(*this));
275 lmm_variable_free(getModel()->getMaxminSystem(), getVariable());
276 xbt_free(getCategory());
283 void StorageN11Action::cancel()
285 setState(Action::State::failed);
288 void StorageN11Action::suspend()
290 XBT_IN("(%p)", this);
291 if (suspended_ != 2) {
292 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), 0.0);
298 void StorageN11Action::resume()
303 bool StorageN11Action::isSuspended()
305 return suspended_ == 1;
308 void StorageN11Action::setMaxDuration(double /*duration*/)
313 void StorageN11Action::setPriority(double /*priority*/)