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 xbt_lib_cursor_t cursor;
23 xbt_lib_foreach(storage_lib, cursor, key, data) {
24 if (xbt_lib_get_level(xbt_lib_get_elm_or_null(storage_lib, key), SURF_STORAGE_LEVEL) != nullptr) {
25 simgrid::surf::Storage* storage =
26 static_cast<simgrid::surf::Storage*>(xbt_lib_get_or_null(storage_lib, key, SURF_STORAGE_LEVEL));
27 simgrid::kernel::routing::NetPoint* host_elm = sg_netpoint_by_name_or_null(storage->attach_);
29 surf_parse_error("Unable to attach storage %s: host %s does not exist.", storage->cname(), storage->attach_);
34 void storage_register_callbacks()
36 simgrid::s4u::onPlatformCreated.connect(check_disk_attachment);
37 instr_routing_define_callbacks();
39 ROUTING_STORAGE_LEVEL = xbt_lib_add_level(storage_lib, xbt_free_f);
40 SURF_STORAGE_LEVEL = xbt_lib_add_level(storage_lib, [](void *self) {
41 delete static_cast<simgrid::surf::Storage*>(self);
49 void surf_storage_model_init_default()
51 surf_storage_model = new simgrid::surf::StorageN11Model();
52 all_existing_models->push_back(surf_storage_model);
58 Storage* StorageN11Model::createStorage(const char* id, const char* type_id, const char* content_name,
62 xbt_assert(!surf_storage_resource_priv(surf_storage_resource_by_name(id)),
63 "Storage '%s' declared several times in the platform file", id);
65 storage_type_t storage_type = storage_types.at(type_id);
68 surf_parse_get_bandwidth(storage_type->model_properties->at("Bread").c_str(), "property Bread, storage", type_id);
69 double Bwrite = surf_parse_get_bandwidth(storage_type->model_properties->at("Bwrite").c_str(),
70 "property Bwrite, storage", type_id);
72 Storage* storage = new StorageN11(this, id, maxminSystem_, Bread, Bwrite, type_id, (char*)content_name,
73 storage_type->size, (char*)attach);
74 storageCreatedCallbacks(storage);
75 xbt_lib_set(storage_lib, id, SURF_STORAGE_LEVEL, storage);
77 XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s'\n\t\tBread '%f'\n", id, type_id, Bread);
79 p_storageList.push_back(storage);
84 double StorageN11Model::nextOccuringEvent(double now)
86 double min_completion = StorageModel::nextOccuringEventFull(now);
88 for(auto storage: p_storageList) {
90 // Foreach write action on that disk
91 for (auto write_action: storage->writeActions_) {
92 rate += lmm_variable_getvalue(write_action->getVariable());
95 min_completion = MIN(min_completion, (storage->size_-storage->usedSize_)/rate);
98 return min_completion;
101 void StorageN11Model::updateActionsState(double /*now*/, double delta)
104 ActionList *actionSet = getRunningActionSet();
105 for(ActionList::iterator it(actionSet->begin()), itNext=it, itend(actionSet->end())
106 ; it != itend ; it=itNext) {
109 StorageAction *action = static_cast<StorageAction*>(&*it);
111 if (action->type_ == WRITE) {
112 // Update the disk usage
113 // Update the file size
114 // For each action of type write
115 double current_progress = delta * lmm_variable_getvalue(action->getVariable());
116 long int incr = current_progress;
118 XBT_DEBUG("%s:\n\t progress = %.2f, current_progress = %.2f, incr = %ld, lrint(1) = %ld, lrint(2) = %ld",
119 action->file_->name, action->progress_, current_progress, incr,
120 lrint(action->progress_ + current_progress), lrint(action->progress_) + incr);
122 /* take care of rounding error accumulation */
123 if (lrint(action->progress_ + current_progress) > lrint(action->progress_) + incr)
126 action->progress_ += current_progress;
128 action->storage_->usedSize_ += incr; // disk usage
129 action->file_->current_position += incr; // current_position
130 // which becomes the new file size
131 action->file_->size = action->file_->current_position;
133 sg_size_t* psize = new sg_size_t;
134 *psize = action->file_->size;
135 std::map<std::string, sg_size_t*>* content_dict = action->storage_->content_;
136 auto entry = content_dict->find(action->file_->name);
137 delete entry->second;
138 entry->second = psize;
141 action->updateRemains(lmm_variable_getvalue(action->getVariable()) * delta);
143 if (action->getMaxDuration() > NO_MAX_DURATION)
144 action->updateMaxDuration(delta);
146 if (action->getRemainsNoUpdate() > 0 && lmm_get_variable_weight(action->getVariable()) > 0 &&
147 action->storage_->usedSize_ == action->storage_->size_) {
149 action->setState(Action::State::failed);
150 } else if (((action->getRemainsNoUpdate() <= 0) && (lmm_get_variable_weight(action->getVariable()) > 0)) ||
151 ((action->getMaxDuration() > NO_MAX_DURATION) && (action->getMaxDuration() <= 0))) {
153 action->setState(Action::State::done);
162 StorageN11::StorageN11(StorageModel* model, const char* name, lmm_system_t maxminSystem, double bread, double bwrite,
163 const char* type_id, char* content_name, sg_size_t size, char* attach)
164 : Storage(model, name, maxminSystem, bread, bwrite, type_id, content_name, size, attach)
166 XBT_DEBUG("Create resource with Bread '%f' Bwrite '%f' and Size '%llu'", bread, bwrite, size);
169 StorageAction *StorageN11::open(const char* mount, const char* path)
171 XBT_DEBUG("\tOpen file '%s'",path);
174 sg_size_t* psize = nullptr;
175 // if file does not exist create an empty file
176 if (content_->find(path) != content_->end())
177 size = *(content_->at(path));
179 psize = new sg_size_t;
182 content_->insert({path, psize});
183 XBT_DEBUG("File '%s' was not found, file created.",path);
185 surf_file_t file = xbt_new0(s_surf_file_t,1);
186 file->name = xbt_strdup(path);
188 file->mount = xbt_strdup(mount);
189 file->current_position = 0;
191 StorageAction* action = new StorageN11Action(model(), 0, isOff(), this, OPEN);
192 action->file_ = file;
197 StorageAction *StorageN11::close(surf_file_t fd)
199 XBT_DEBUG("\tClose file '%s' size '%llu'", fd->name, fd->size);
200 // unref write actions from storage
201 for (std::vector<StorageAction*>::iterator it = writeActions_.begin(); it != writeActions_.end();) {
202 StorageAction *write_action = *it;
203 if ((write_action->file_) == fd) {
204 write_action->unref();
205 it = writeActions_.erase(it);
213 StorageAction* action = new StorageN11Action(model(), 0, isOff(), this, CLOSE);
217 StorageAction *StorageN11::read(surf_file_t fd, sg_size_t size)
219 if(fd->current_position + size > fd->size){
220 if (fd->current_position > fd->size){
223 size = fd->size - fd->current_position;
225 fd->current_position = fd->size;
228 fd->current_position += size;
230 StorageAction* action = new StorageN11Action(model(), size, isOff(), this, READ);
234 StorageAction *StorageN11::write(surf_file_t fd, sg_size_t size)
236 char *filename = fd->name;
237 XBT_DEBUG("\tWrite file '%s' size '%llu/%llu'",filename,size,fd->size);
239 StorageAction* action = new StorageN11Action(model(), size, isOff(), this, WRITE);
241 /* Substract the part of the file that might disappear from the used sized on the storage element */
242 usedSize_ -= (fd->size - fd->current_position);
243 // If the storage is full before even starting to write
244 if(usedSize_==size_) {
245 action->setState(Action::State::failed);
254 StorageN11Action::StorageN11Action(Model *model, double cost, bool failed, Storage *storage, e_surf_action_storage_type_t type)
255 : StorageAction(model, cost, failed,
256 lmm_variable_new(model->getMaxminSystem(), this, 1.0, -1.0 , 3),
258 XBT_IN("(%s,%g", storage->cname(), cost);
260 // Must be less than the max bandwidth for all actions
261 lmm_expand(model->getMaxminSystem(), storage->constraint(), getVariable(), 1.0);
268 lmm_expand(model->getMaxminSystem(), storage->constraintRead_, getVariable(), 1.0);
271 lmm_expand(model->getMaxminSystem(), storage->constraintWrite_, getVariable(), 1.0);
273 //TODO there is something annoying with what's below. Have to sort it out...
274 // Action *action = this;
275 // storage->p_writeActions->push_back(action);
284 int StorageN11Action::unref()
288 if (action_hook.is_linked())
289 stateSet_->erase(stateSet_->iterator_to(*this));
291 lmm_variable_free(getModel()->getMaxminSystem(), getVariable());
292 xbt_free(getCategory());
299 void StorageN11Action::cancel()
301 setState(Action::State::failed);
304 void StorageN11Action::suspend()
306 XBT_IN("(%p)", this);
307 if (suspended_ != 2) {
308 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), 0.0);
314 void StorageN11Action::resume()
319 bool StorageN11Action::isSuspended()
321 return suspended_ == 1;
324 void StorageN11Action::setMaxDuration(double /*duration*/)
329 void StorageN11Action::setPriority(double /*priority*/)