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 "surf_private.h"
9 #include <math.h> /*ceil*/
10 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_storage);
12 static int storage_selective_update = 0;
13 static xbt_swag_t storage_running_action_set_that_does_not_need_being_checked = nullptr;
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 xbt_dict_free(&(stype->model_properties));
31 static inline void surf_storage_resource_free(void *r)
33 // specific to storage
34 simgrid::surf::Storage *storage = static_cast<simgrid::surf::Storage*>(r);
39 static inline void routing_storage_host_free(void *r)
41 xbt_dynar_t dyn = (xbt_dynar_t) r;
45 void storage_register_callbacks()
47 ROUTING_STORAGE_LEVEL = xbt_lib_add_level(storage_lib, xbt_free_f);
48 ROUTING_STORAGE_HOST_LEVEL = xbt_lib_add_level(storage_lib, routing_storage_host_free);
49 ROUTING_STORAGE_TYPE_LEVEL = xbt_lib_add_level(storage_type_lib, routing_storage_type_free);
50 SURF_STORAGE_LEVEL = xbt_lib_add_level(storage_lib, surf_storage_resource_free);
57 void surf_storage_model_init_default()
59 surf_storage_model = new simgrid::surf::StorageN11Model();
60 all_existing_models->push_back(surf_storage_model);
66 StorageN11Model::StorageN11Model() : StorageModel() {
67 Action *action = nullptr;
69 XBT_DEBUG("surf_storage_model_init_internal");
71 storage_running_action_set_that_does_not_need_being_checked = xbt_swag_new(xbt_swag_offset(*action, stateHookup_));
73 maxminSystem_ = lmm_system_new(storage_selective_update);
77 StorageN11Model::~StorageN11Model(){
78 xbt_swag_free(storage_running_action_set_that_does_not_need_being_checked);
79 storage_running_action_set_that_does_not_need_being_checked = nullptr;
82 #include "src/surf/xml/platf.hpp" // FIXME: move that back to the parsing area
83 Storage *StorageN11Model::createStorage(const char* id, const char* type_id,
84 const char* content_name, const char* content_type, xbt_dict_t properties, const char* attach)
87 xbt_assert(!surf_storage_resource_priv(surf_storage_resource_by_name(id)),
88 "Storage '%s' declared several times in the platform file", id);
90 storage_type_t storage_type = (storage_type_t) xbt_lib_get_or_null(storage_type_lib, type_id,ROUTING_STORAGE_TYPE_LEVEL);
92 double Bread = surf_parse_get_bandwidth((char*)xbt_dict_get(storage_type->model_properties, "Bread"),
93 "property Bread, storage",type_id);
94 double Bwrite = surf_parse_get_bandwidth((char*)xbt_dict_get(storage_type->model_properties, "Bwrite"),
95 "property Bwrite, storage",type_id);
96 double Bconnection = surf_parse_get_bandwidth((char*)xbt_dict_get(storage_type->model_properties, "Bconnection"),
97 "property Bconnection, storage",type_id);
99 Storage *storage = new StorageN11(this, id, properties, maxminSystem_,
100 Bread, Bwrite, Bconnection, type_id, (char *)content_name,
101 content_type, storage_type->size, (char *) attach);
102 storageCreatedCallbacks(storage);
103 xbt_lib_set(storage_lib, id, SURF_STORAGE_LEVEL, storage);
105 XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s'\n\t\tproperties '%p'\n\t\tBread '%f'\n",
106 id, type_id, properties, Bread);
108 p_storageList.push_back(storage);
113 double StorageN11Model::next_occuring_event(double /*now*/)
115 XBT_DEBUG("storage_share_resources");
117 double min_completion = shareResourcesMaxMin(getRunningActionSet(), maxminSystem_, lmm_solve);
121 for(auto storage: p_storageList) {
123 // Foreach write action on disk
124 for (auto write_action: storage->writeActions_) {
125 rate += lmm_variable_getvalue(write_action->getVariable());
128 min_completion = MIN(min_completion, (storage->size_-storage->usedSize_)/rate);
131 return min_completion;
134 void StorageN11Model::updateActionsState(double /*now*/, double delta)
137 ActionList *actionSet = getRunningActionSet();
138 for(ActionList::iterator it(actionSet->begin()), itNext=it, itend(actionSet->end())
139 ; it != itend ; it=itNext) {
142 StorageAction *action = static_cast<StorageAction*>(&*it);
144 if(action->m_type == WRITE){
145 // Update the disk usage
146 // Update the file size
147 // For each action of type write
148 double current_progress = delta * lmm_variable_getvalue(action->getVariable());
149 long int incr = current_progress;
151 XBT_DEBUG("%s:\n\t progress = %.2f, current_progress = %.2f, incr = %ld, lrint(1) = %ld, lrint(2) = %ld",
152 action->p_file->name,
153 action->progress, current_progress, incr,
154 lrint(action->progress + current_progress),
155 lrint(action->progress)+ incr);
157 /* take care of rounding error accumulation */
158 if (lrint(action->progress + current_progress) > lrint(action->progress)+ incr)
161 action->progress +=current_progress;
163 action->p_storage->usedSize_ += incr; // disk usage
164 action->p_file->current_position+= incr; // current_position
165 // which becomes the new file size
166 action->p_file->size = action->p_file->current_position ;
168 sg_size_t *psize = xbt_new(sg_size_t,1);
169 *psize = action->p_file->size;
170 xbt_dict_t content_dict = action->p_storage->content_;
171 xbt_dict_set(content_dict, action->p_file->name, psize, nullptr);
174 action->updateRemains(lmm_variable_getvalue(action->getVariable()) * delta);
176 if (action->getMaxDuration() > NO_MAX_DURATION)
177 action->updateMaxDuration(delta);
179 if(action->getRemainsNoUpdate() > 0 && lmm_get_variable_weight(action->getVariable()) > 0 &&
180 action->p_storage->usedSize_ == action->p_storage->size_) {
182 action->setState(Action::State::failed);
183 } else if (((action->getRemainsNoUpdate() <= 0) && (lmm_get_variable_weight(action->getVariable()) > 0)) ||
184 ((action->getMaxDuration() > NO_MAX_DURATION) && (action->getMaxDuration() <= 0))) {
186 action->setState(Action::State::done);
195 StorageN11::StorageN11(StorageModel *model, const char* name,
196 xbt_dict_t properties, lmm_system_t maxminSystem, double bread,
197 double bwrite, double bconnection, const char* type_id, char *content_name,
198 const char *content_type, sg_size_t size, char *attach)
199 : Storage(model, name, properties,
200 maxminSystem, bread, bwrite, bconnection, type_id, content_name, content_type, size, attach) {
201 XBT_DEBUG("Create resource with Bconnection '%f' Bread '%f' Bwrite '%f' and Size '%llu'", bconnection, bread, bwrite, size);
204 StorageAction *StorageN11::open(const char* mount, const char* path)
206 XBT_DEBUG("\tOpen file '%s'",path);
208 sg_size_t size, *psize;
209 psize = (sg_size_t*) xbt_dict_get_or_null(content_, path);
210 // if file does not exist create an empty file
214 psize = xbt_new(sg_size_t,1);
217 xbt_dict_set(content_, path, psize, nullptr);
218 XBT_DEBUG("File '%s' was not found, file created.",path);
220 surf_file_t file = xbt_new0(s_surf_file_t,1);
221 file->name = xbt_strdup(path);
223 file->mount = xbt_strdup(mount);
224 file->current_position = 0;
226 StorageAction *action = new StorageN11Action(getModel(), 0, isOff(), this, OPEN);
227 action->p_file = file;
232 StorageAction *StorageN11::close(surf_file_t fd)
234 XBT_DEBUG("\tClose file '%s' size '%llu'", fd->name, fd->size);
235 // unref write actions from storage
236 for (std::vector<StorageAction*>::iterator it = writeActions_.begin(); it != writeActions_.end();) {
237 StorageAction *write_action = *it;
238 if ((write_action->p_file) == fd) {
239 write_action->unref();
240 it = writeActions_.erase(it);
248 StorageAction *action = new StorageN11Action(getModel(), 0, isOff(), this, CLOSE);
252 StorageAction *StorageN11::read(surf_file_t fd, sg_size_t size)
254 if(fd->current_position + size > fd->size){
255 if (fd->current_position > fd->size){
258 size = fd->size - fd->current_position;
260 fd->current_position = fd->size;
263 fd->current_position += size;
265 StorageAction *action = new StorageN11Action(getModel(), size, isOff(), this, READ);
269 StorageAction *StorageN11::write(surf_file_t fd, sg_size_t size)
271 char *filename = fd->name;
272 XBT_DEBUG("\tWrite file '%s' size '%llu/%llu'",filename,size,fd->size);
274 StorageAction *action = new StorageN11Action(getModel(), size, isOff(), this, WRITE);
276 /* Substract the part of the file that might disappear from the used sized on the storage element */
277 usedSize_ -= (fd->size - fd->current_position);
278 // If the storage is full before even starting to write
279 if(usedSize_==size_) {
280 action->setState(Action::State::failed);
289 StorageN11Action::StorageN11Action(Model *model, double cost, bool failed, Storage *storage, e_surf_action_storage_type_t type)
290 : StorageAction(model, cost, failed,
291 lmm_variable_new(model->getMaxminSystem(), this, 1.0, -1.0 , 3),
293 XBT_IN("(%s,%g", storage->getName(), cost);
295 // Must be less than the max bandwidth for all actions
296 lmm_expand(model->getMaxminSystem(), storage->getConstraint(), getVariable(), 1.0);
303 lmm_expand(model->getMaxminSystem(), storage->constraintRead_, getVariable(), 1.0);
306 lmm_expand(model->getMaxminSystem(), storage->constraintWrite_, getVariable(), 1.0);
308 //TODO there is something annoying with what's below. Have to sort it out...
309 // Action *action = this;
310 // storage->p_writeActions->push_back(action);
317 int StorageN11Action::unref()
321 if (action_hook.is_linked())
322 stateSet_->erase(stateSet_->iterator_to(*this));
324 lmm_variable_free(getModel()->getMaxminSystem(), getVariable());
325 xbt_free(getCategory());
332 void StorageN11Action::cancel()
334 setState(Action::State::failed);
337 void StorageN11Action::suspend()
339 XBT_IN("(%p)", this);
340 if (suspended_ != 2) {
341 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), 0.0);
347 void StorageN11Action::resume()
352 bool StorageN11Action::isSuspended()
354 return suspended_ == 1;
357 void StorageN11Action::setMaxDuration(double /*duration*/)
362 void StorageN11Action::setPriority(double /*priority*/)