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);
16 static inline void routing_storage_type_free(void *r)
18 storage_type_t stype = (storage_type_t) r;
22 free(stype->content_type);
23 xbt_dict_free(&(stype->properties));
24 xbt_dict_free(&(stype->model_properties));
28 static inline void surf_storage_resource_free(void *r)
30 // specific to storage
31 simgrid::surf::Storage *storage = static_cast<simgrid::surf::Storage*>(r);
36 static inline void routing_storage_host_free(void *r)
38 xbt_dynar_t dyn = (xbt_dynar_t) r;
42 void storage_register_callbacks()
44 ROUTING_STORAGE_LEVEL = xbt_lib_add_level(storage_lib, xbt_free_f);
45 ROUTING_STORAGE_HOST_LEVEL = xbt_lib_add_level(storage_lib, routing_storage_host_free);
46 ROUTING_STORAGE_TYPE_LEVEL = xbt_lib_add_level(storage_type_lib, routing_storage_type_free);
47 SURF_STORAGE_LEVEL = xbt_lib_add_level(storage_lib, surf_storage_resource_free);
54 void surf_storage_model_init_default()
56 surf_storage_model = new simgrid::surf::StorageN11Model();
57 all_existing_models->push_back(surf_storage_model);
63 StorageN11Model::StorageN11Model() : StorageModel() {
64 maxminSystem_ = lmm_system_new(true /* lazy update */);
67 StorageN11Model::~StorageN11Model() = default;
69 #include "src/surf/xml/platf.hpp" // FIXME: move that back to the parsing area
70 Storage *StorageN11Model::createStorage(const char* id, const char* type_id,
71 const char* content_name, const char* content_type, xbt_dict_t properties, const char* attach)
74 xbt_assert(!surf_storage_resource_priv(surf_storage_resource_by_name(id)),
75 "Storage '%s' declared several times in the platform file", id);
77 storage_type_t storage_type = (storage_type_t) xbt_lib_get_or_null(storage_type_lib, type_id,ROUTING_STORAGE_TYPE_LEVEL);
79 double Bread = surf_parse_get_bandwidth((char*)xbt_dict_get(storage_type->model_properties, "Bread"),
80 "property Bread, storage",type_id);
81 double Bwrite = surf_parse_get_bandwidth((char*)xbt_dict_get(storage_type->model_properties, "Bwrite"),
82 "property Bwrite, storage",type_id);
83 double Bconnection = surf_parse_get_bandwidth((char*)xbt_dict_get(storage_type->model_properties, "Bconnection"),
84 "property Bconnection, storage",type_id);
86 Storage *storage = new StorageN11(this, id, properties, maxminSystem_,
87 Bread, Bwrite, Bconnection, type_id, (char *)content_name,
88 content_type, storage_type->size, (char *) attach);
89 storageCreatedCallbacks(storage);
90 xbt_lib_set(storage_lib, id, SURF_STORAGE_LEVEL, storage);
92 XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s'\n\t\tproperties '%p'\n\t\tBread '%f'\n",
93 id, type_id, properties, Bread);
95 p_storageList.push_back(storage);
100 double StorageN11Model::nextOccuringEvent(double now)
102 double min_completion = StorageModel::nextOccuringEventFull(now);
104 for(auto storage: p_storageList) {
106 // Foreach write action on that disk
107 for (auto write_action: storage->writeActions_) {
108 rate += lmm_variable_getvalue(write_action->getVariable());
111 min_completion = MIN(min_completion, (storage->size_-storage->usedSize_)/rate);
114 return min_completion;
117 void StorageN11Model::updateActionsState(double /*now*/, double delta)
120 ActionList *actionSet = getRunningActionSet();
121 for(ActionList::iterator it(actionSet->begin()), itNext=it, itend(actionSet->end())
122 ; it != itend ; it=itNext) {
125 StorageAction *action = static_cast<StorageAction*>(&*it);
127 if(action->m_type == WRITE){
128 // Update the disk usage
129 // Update the file size
130 // For each action of type write
131 double current_progress = delta * lmm_variable_getvalue(action->getVariable());
132 long int incr = current_progress;
134 XBT_DEBUG("%s:\n\t progress = %.2f, current_progress = %.2f, incr = %ld, lrint(1) = %ld, lrint(2) = %ld",
135 action->p_file->name,
136 action->progress, current_progress, incr,
137 lrint(action->progress + current_progress),
138 lrint(action->progress)+ incr);
140 /* take care of rounding error accumulation */
141 if (lrint(action->progress + current_progress) > lrint(action->progress)+ incr)
144 action->progress +=current_progress;
146 action->p_storage->usedSize_ += incr; // disk usage
147 action->p_file->current_position+= incr; // current_position
148 // which becomes the new file size
149 action->p_file->size = action->p_file->current_position ;
151 sg_size_t *psize = xbt_new(sg_size_t,1);
152 *psize = action->p_file->size;
153 xbt_dict_t content_dict = action->p_storage->content_;
154 xbt_dict_set(content_dict, action->p_file->name, psize, nullptr);
157 action->updateRemains(lmm_variable_getvalue(action->getVariable()) * delta);
159 if (action->getMaxDuration() > NO_MAX_DURATION)
160 action->updateMaxDuration(delta);
162 if(action->getRemainsNoUpdate() > 0 && lmm_get_variable_weight(action->getVariable()) > 0 &&
163 action->p_storage->usedSize_ == action->p_storage->size_) {
165 action->setState(Action::State::failed);
166 } else if (((action->getRemainsNoUpdate() <= 0) && (lmm_get_variable_weight(action->getVariable()) > 0)) ||
167 ((action->getMaxDuration() > NO_MAX_DURATION) && (action->getMaxDuration() <= 0))) {
169 action->setState(Action::State::done);
178 StorageN11::StorageN11(StorageModel *model, const char* name,
179 xbt_dict_t properties, lmm_system_t maxminSystem, double bread,
180 double bwrite, double bconnection, const char* type_id, char *content_name,
181 const char *content_type, sg_size_t size, char *attach)
182 : Storage(model, name, properties,
183 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);
191 sg_size_t size, *psize;
192 psize = (sg_size_t*) xbt_dict_get_or_null(content_, path);
193 // if file does not exist create an empty file
197 psize = xbt_new(sg_size_t,1);
200 xbt_dict_set(content_, path, psize, nullptr);
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(getModel(), 0, isOff(), this, OPEN);
210 action->p_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->p_file) == fd) {
222 write_action->unref();
223 it = writeActions_.erase(it);
231 StorageAction *action = new StorageN11Action(getModel(), 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(getModel(), 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(getModel(), 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->getName(), cost);
278 // Must be less than the max bandwidth for all actions
279 lmm_expand(model->getMaxminSystem(), storage->getConstraint(), 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);
300 int StorageN11Action::unref()
304 if (action_hook.is_linked())
305 stateSet_->erase(stateSet_->iterator_to(*this));
307 lmm_variable_free(getModel()->getMaxminSystem(), getVariable());
308 xbt_free(getCategory());
315 void StorageN11Action::cancel()
317 setState(Action::State::failed);
320 void StorageN11Action::suspend()
322 XBT_IN("(%p)", this);
323 if (suspended_ != 2) {
324 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), 0.0);
330 void StorageN11Action::resume()
335 bool StorageN11Action::isSuspended()
337 return suspended_ == 1;
340 void StorageN11Action::setMaxDuration(double /*duration*/)
345 void StorageN11Action::setPriority(double /*priority*/)