1 /* Copyright (c) 2013-2015. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
7 #include "storage_n11.hpp"
8 #include "simgrid/s4u/engine.hpp"
9 #include "src/kernel/routing/NetPoint.hpp"
10 #include "surf_private.h"
11 #include <math.h> /*ceil*/
13 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_storage);
19 static inline void routing_storage_type_free(void *r)
21 storage_type_t stype = (storage_type_t) r;
25 free(stype->content_type);
26 xbt_dict_free(&(stype->properties));
27 delete stype->model_properties;
31 static void check_disk_attachment()
33 xbt_lib_cursor_t cursor;
36 xbt_lib_foreach(storage_lib, cursor, key, data) {
37 if (xbt_lib_get_level(xbt_lib_get_elm_or_null(storage_lib, key), SURF_STORAGE_LEVEL) != nullptr) {
38 simgrid::surf::Storage* storage =
39 static_cast<simgrid::surf::Storage*>(xbt_lib_get_or_null(storage_lib, key, SURF_STORAGE_LEVEL));
40 simgrid::kernel::routing::NetPoint* host_elm = sg_netpoint_by_name_or_null(storage->attach_);
42 surf_parse_error("Unable to attach storage %s: host %s does not exist.", storage->cname(), storage->attach_);
47 void storage_register_callbacks()
49 simgrid::s4u::onPlatformCreated.connect(check_disk_attachment);
50 instr_routing_define_callbacks();
52 ROUTING_STORAGE_LEVEL = xbt_lib_add_level(storage_lib, xbt_free_f);
53 ROUTING_STORAGE_TYPE_LEVEL = xbt_lib_add_level(storage_type_lib, routing_storage_type_free);
54 SURF_STORAGE_LEVEL = xbt_lib_add_level(storage_lib, [](void *self) {
55 delete static_cast<simgrid::surf::Storage*>(self);
63 void surf_storage_model_init_default()
65 surf_storage_model = new simgrid::surf::StorageN11Model();
66 all_existing_models->push_back(surf_storage_model);
72 Storage* StorageN11Model::createStorage(const char* id, const char* type_id, const char* content_name,
73 const char* content_type, const char* attach)
76 xbt_assert(!surf_storage_resource_priv(surf_storage_resource_by_name(id)),
77 "Storage '%s' declared several times in the platform file", id);
79 storage_type_t storage_type =
80 (storage_type_t)xbt_lib_get_or_null(storage_type_lib, type_id, ROUTING_STORAGE_TYPE_LEVEL);
83 surf_parse_get_bandwidth(storage_type->model_properties->at("Bread").c_str(), "property Bread, storage", type_id);
84 double Bwrite = surf_parse_get_bandwidth(storage_type->model_properties->at("Bwrite").c_str(),
85 "property Bwrite, storage", type_id);
86 double Bconnection = surf_parse_get_bandwidth(storage_type->model_properties->at("Bconnection").c_str(),
87 "property Bconnection, storage", type_id);
89 Storage* storage = new StorageN11(this, id, maxminSystem_, Bread, Bwrite, Bconnection, type_id, (char*)content_name,
90 content_type, storage_type->size, (char*)attach);
91 storageCreatedCallbacks(storage);
92 xbt_lib_set(storage_lib, id, SURF_STORAGE_LEVEL, storage);
94 XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s'\n\t\tBread '%f'\n", id, type_id, Bread);
96 p_storageList.push_back(storage);
101 double StorageN11Model::nextOccuringEvent(double now)
103 double min_completion = StorageModel::nextOccuringEventFull(now);
105 for(auto storage: p_storageList) {
107 // Foreach write action on that disk
108 for (auto write_action: storage->writeActions_) {
109 rate += lmm_variable_getvalue(write_action->getVariable());
112 min_completion = MIN(min_completion, (storage->size_-storage->usedSize_)/rate);
115 return min_completion;
118 void StorageN11Model::updateActionsState(double /*now*/, double delta)
121 ActionList *actionSet = getRunningActionSet();
122 for(ActionList::iterator it(actionSet->begin()), itNext=it, itend(actionSet->end())
123 ; it != itend ; it=itNext) {
126 StorageAction *action = static_cast<StorageAction*>(&*it);
128 if (action->type_ == WRITE) {
129 // Update the disk usage
130 // Update the file size
131 // For each action of type write
132 double current_progress = delta * lmm_variable_getvalue(action->getVariable());
133 long int incr = current_progress;
135 XBT_DEBUG("%s:\n\t progress = %.2f, current_progress = %.2f, incr = %ld, lrint(1) = %ld, lrint(2) = %ld",
136 action->file_->name, action->progress_, current_progress, incr,
137 lrint(action->progress_ + current_progress), lrint(action->progress_) + incr);
139 /* take care of rounding error accumulation */
140 if (lrint(action->progress_ + current_progress) > lrint(action->progress_) + incr)
143 action->progress_ += current_progress;
145 action->storage_->usedSize_ += incr; // disk usage
146 action->file_->current_position += incr; // current_position
147 // which becomes the new file size
148 action->file_->size = action->file_->current_position;
150 sg_size_t* psize = new sg_size_t;
151 *psize = action->file_->size;
152 std::map<std::string, sg_size_t*>* content_dict = action->storage_->content_;
153 auto entry = content_dict->find(action->file_->name);
154 delete entry->second;
155 entry->second = psize;
158 action->updateRemains(lmm_variable_getvalue(action->getVariable()) * delta);
160 if (action->getMaxDuration() > NO_MAX_DURATION)
161 action->updateMaxDuration(delta);
163 if (action->getRemainsNoUpdate() > 0 && lmm_get_variable_weight(action->getVariable()) > 0 &&
164 action->storage_->usedSize_ == action->storage_->size_) {
166 action->setState(Action::State::failed);
167 } else if (((action->getRemainsNoUpdate() <= 0) && (lmm_get_variable_weight(action->getVariable()) > 0)) ||
168 ((action->getMaxDuration() > NO_MAX_DURATION) && (action->getMaxDuration() <= 0))) {
170 action->setState(Action::State::done);
179 StorageN11::StorageN11(StorageModel* model, const char* name, lmm_system_t maxminSystem, double bread, double bwrite,
180 double bconnection, const char* type_id, char* content_name, const char* content_type,
181 sg_size_t size, char* attach)
182 : Storage(model, name, maxminSystem, bread, bwrite, bconnection, type_id, content_name, content_type, size, attach)
184 XBT_DEBUG("Create resource with Bconnection '%f' Bread '%f' Bwrite '%f' and Size '%llu'", bconnection, bread, bwrite, size);
187 StorageAction *StorageN11::open(const char* mount, const char* path)
189 XBT_DEBUG("\tOpen file '%s'",path);
192 sg_size_t* psize = nullptr;
193 // if file does not exist create an empty file
194 if (content_->find(path) != content_->end())
195 size = *(content_->at(path));
197 psize = new sg_size_t;
200 content_->insert({path, psize});
201 XBT_DEBUG("File '%s' was not found, file created.",path);
203 surf_file_t file = xbt_new0(s_surf_file_t,1);
204 file->name = xbt_strdup(path);
206 file->mount = xbt_strdup(mount);
207 file->current_position = 0;
209 StorageAction* action = new StorageN11Action(model(), 0, isOff(), this, OPEN);
210 action->file_ = file;
215 StorageAction *StorageN11::close(surf_file_t fd)
217 XBT_DEBUG("\tClose file '%s' size '%llu'", fd->name, fd->size);
218 // unref write actions from storage
219 for (std::vector<StorageAction*>::iterator it = writeActions_.begin(); it != writeActions_.end();) {
220 StorageAction *write_action = *it;
221 if ((write_action->file_) == fd) {
222 write_action->unref();
223 it = writeActions_.erase(it);
231 StorageAction* action = new StorageN11Action(model(), 0, isOff(), this, CLOSE);
235 StorageAction *StorageN11::read(surf_file_t fd, sg_size_t size)
237 if(fd->current_position + size > fd->size){
238 if (fd->current_position > fd->size){
241 size = fd->size - fd->current_position;
243 fd->current_position = fd->size;
246 fd->current_position += size;
248 StorageAction* action = new StorageN11Action(model(), size, isOff(), this, READ);
252 StorageAction *StorageN11::write(surf_file_t fd, sg_size_t size)
254 char *filename = fd->name;
255 XBT_DEBUG("\tWrite file '%s' size '%llu/%llu'",filename,size,fd->size);
257 StorageAction* action = new StorageN11Action(model(), size, isOff(), this, WRITE);
259 /* Substract the part of the file that might disappear from the used sized on the storage element */
260 usedSize_ -= (fd->size - fd->current_position);
261 // If the storage is full before even starting to write
262 if(usedSize_==size_) {
263 action->setState(Action::State::failed);
272 StorageN11Action::StorageN11Action(Model *model, double cost, bool failed, Storage *storage, e_surf_action_storage_type_t type)
273 : StorageAction(model, cost, failed,
274 lmm_variable_new(model->getMaxminSystem(), this, 1.0, -1.0 , 3),
276 XBT_IN("(%s,%g", storage->cname(), cost);
278 // Must be less than the max bandwidth for all actions
279 lmm_expand(model->getMaxminSystem(), storage->constraint(), getVariable(), 1.0);
286 lmm_expand(model->getMaxminSystem(), storage->constraintRead_, getVariable(), 1.0);
289 lmm_expand(model->getMaxminSystem(), storage->constraintWrite_, getVariable(), 1.0);
291 //TODO there is something annoying with what's below. Have to sort it out...
292 // Action *action = this;
293 // storage->p_writeActions->push_back(action);
302 int StorageN11Action::unref()
306 if (action_hook.is_linked())
307 stateSet_->erase(stateSet_->iterator_to(*this));
309 lmm_variable_free(getModel()->getMaxminSystem(), getVariable());
310 xbt_free(getCategory());
317 void StorageN11Action::cancel()
319 setState(Action::State::failed);
322 void StorageN11Action::suspend()
324 XBT_IN("(%p)", this);
325 if (suspended_ != 2) {
326 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), 0.0);
332 void StorageN11Action::resume()
337 bool StorageN11Action::isSuspended()
339 return suspended_ == 1;
342 void StorageN11Action::setMaxDuration(double /*duration*/)
347 void StorageN11Action::setPriority(double /*priority*/)