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 #include "src/surf/xml/platf.hpp" // FIXME: move that back to the parsing area
64 Storage *StorageN11Model::createStorage(const char* id, const char* type_id,
65 const char* content_name, const char* content_type, xbt_dict_t properties, const char* attach)
68 xbt_assert(!surf_storage_resource_priv(surf_storage_resource_by_name(id)),
69 "Storage '%s' declared several times in the platform file", id);
71 storage_type_t storage_type = (storage_type_t) xbt_lib_get_or_null(storage_type_lib, type_id,ROUTING_STORAGE_TYPE_LEVEL);
73 double Bread = surf_parse_get_bandwidth((char*)xbt_dict_get(storage_type->model_properties, "Bread"),
74 "property Bread, storage",type_id);
75 double Bwrite = surf_parse_get_bandwidth((char*)xbt_dict_get(storage_type->model_properties, "Bwrite"),
76 "property Bwrite, storage",type_id);
77 double Bconnection = surf_parse_get_bandwidth((char*)xbt_dict_get(storage_type->model_properties, "Bconnection"),
78 "property Bconnection, storage",type_id);
80 Storage *storage = new StorageN11(this, id, properties, maxminSystem_,
81 Bread, Bwrite, Bconnection, type_id, (char *)content_name,
82 content_type, storage_type->size, (char *) attach);
83 storageCreatedCallbacks(storage);
84 xbt_lib_set(storage_lib, id, SURF_STORAGE_LEVEL, storage);
86 XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s'\n\t\tproperties '%p'\n\t\tBread '%f'\n",
87 id, type_id, properties, Bread);
89 p_storageList.push_back(storage);
94 double StorageN11Model::nextOccuringEvent(double now)
96 double min_completion = StorageModel::nextOccuringEventFull(now);
98 for(auto storage: p_storageList) {
100 // Foreach write action on that disk
101 for (auto write_action: storage->writeActions_) {
102 rate += lmm_variable_getvalue(write_action->getVariable());
105 min_completion = MIN(min_completion, (storage->size_-storage->usedSize_)/rate);
108 return min_completion;
111 void StorageN11Model::updateActionsState(double /*now*/, double delta)
114 ActionList *actionSet = getRunningActionSet();
115 for(ActionList::iterator it(actionSet->begin()), itNext=it, itend(actionSet->end())
116 ; it != itend ; it=itNext) {
119 StorageAction *action = static_cast<StorageAction*>(&*it);
121 if (action->type_ == WRITE) {
122 // Update the disk usage
123 // Update the file size
124 // For each action of type write
125 double current_progress = delta * lmm_variable_getvalue(action->getVariable());
126 long int incr = current_progress;
128 XBT_DEBUG("%s:\n\t progress = %.2f, current_progress = %.2f, incr = %ld, lrint(1) = %ld, lrint(2) = %ld",
129 action->file_->name, action->progress_, current_progress, incr,
130 lrint(action->progress_ + current_progress), lrint(action->progress_) + incr);
132 /* take care of rounding error accumulation */
133 if (lrint(action->progress_ + current_progress) > lrint(action->progress_) + incr)
136 action->progress_ += current_progress;
138 action->storage_->usedSize_ += incr; // disk usage
139 action->file_->current_position += incr; // current_position
140 // which becomes the new file size
141 action->file_->size = action->file_->current_position;
143 sg_size_t *psize = xbt_new(sg_size_t,1);
144 *psize = action->file_->size;
145 xbt_dict_t content_dict = action->storage_->content_;
146 xbt_dict_set(content_dict, action->file_->name, psize, nullptr);
149 action->updateRemains(lmm_variable_getvalue(action->getVariable()) * delta);
151 if (action->getMaxDuration() > NO_MAX_DURATION)
152 action->updateMaxDuration(delta);
154 if (action->getRemainsNoUpdate() > 0 && lmm_get_variable_weight(action->getVariable()) > 0 &&
155 action->storage_->usedSize_ == action->storage_->size_) {
157 action->setState(Action::State::failed);
158 } else if (((action->getRemainsNoUpdate() <= 0) && (lmm_get_variable_weight(action->getVariable()) > 0)) ||
159 ((action->getMaxDuration() > NO_MAX_DURATION) && (action->getMaxDuration() <= 0))) {
161 action->setState(Action::State::done);
170 StorageN11::StorageN11(StorageModel *model, const char* name,
171 xbt_dict_t properties, lmm_system_t maxminSystem, double bread,
172 double bwrite, double bconnection, const char* type_id, char *content_name,
173 const char *content_type, sg_size_t size, char *attach)
174 : Storage(model, name, properties,
175 maxminSystem, bread, bwrite, bconnection, type_id, content_name, content_type, size, attach) {
176 XBT_DEBUG("Create resource with Bconnection '%f' Bread '%f' Bwrite '%f' and Size '%llu'", bconnection, bread, bwrite, size);
179 StorageAction *StorageN11::open(const char* mount, const char* path)
181 XBT_DEBUG("\tOpen file '%s'",path);
183 sg_size_t size, *psize;
184 psize = (sg_size_t*) xbt_dict_get_or_null(content_, path);
185 // if file does not exist create an empty file
189 psize = xbt_new(sg_size_t,1);
192 xbt_dict_set(content_, path, psize, nullptr);
193 XBT_DEBUG("File '%s' was not found, file created.",path);
195 surf_file_t file = xbt_new0(s_surf_file_t,1);
196 file->name = xbt_strdup(path);
198 file->mount = xbt_strdup(mount);
199 file->current_position = 0;
201 StorageAction *action = new StorageN11Action(getModel(), 0, isOff(), this, OPEN);
202 action->file_ = file;
207 StorageAction *StorageN11::close(surf_file_t fd)
209 XBT_DEBUG("\tClose file '%s' size '%llu'", fd->name, fd->size);
210 // unref write actions from storage
211 for (std::vector<StorageAction*>::iterator it = writeActions_.begin(); it != writeActions_.end();) {
212 StorageAction *write_action = *it;
213 if ((write_action->file_) == fd) {
214 write_action->unref();
215 it = writeActions_.erase(it);
223 StorageAction *action = new StorageN11Action(getModel(), 0, isOff(), this, CLOSE);
227 StorageAction *StorageN11::read(surf_file_t fd, sg_size_t size)
229 if(fd->current_position + size > fd->size){
230 if (fd->current_position > fd->size){
233 size = fd->size - fd->current_position;
235 fd->current_position = fd->size;
238 fd->current_position += size;
240 StorageAction *action = new StorageN11Action(getModel(), size, isOff(), this, READ);
244 StorageAction *StorageN11::write(surf_file_t fd, sg_size_t size)
246 char *filename = fd->name;
247 XBT_DEBUG("\tWrite file '%s' size '%llu/%llu'",filename,size,fd->size);
249 StorageAction *action = new StorageN11Action(getModel(), size, isOff(), this, WRITE);
251 /* Substract the part of the file that might disappear from the used sized on the storage element */
252 usedSize_ -= (fd->size - fd->current_position);
253 // If the storage is full before even starting to write
254 if(usedSize_==size_) {
255 action->setState(Action::State::failed);
264 StorageN11Action::StorageN11Action(Model *model, double cost, bool failed, Storage *storage, e_surf_action_storage_type_t type)
265 : StorageAction(model, cost, failed,
266 lmm_variable_new(model->getMaxminSystem(), this, 1.0, -1.0 , 3),
268 XBT_IN("(%s,%g", storage->getName(), cost);
270 // Must be less than the max bandwidth for all actions
271 lmm_expand(model->getMaxminSystem(), storage->getConstraint(), getVariable(), 1.0);
278 lmm_expand(model->getMaxminSystem(), storage->constraintRead_, getVariable(), 1.0);
281 lmm_expand(model->getMaxminSystem(), storage->constraintWrite_, getVariable(), 1.0);
283 //TODO there is something annoying with what's below. Have to sort it out...
284 // Action *action = this;
285 // storage->p_writeActions->push_back(action);
292 int StorageN11Action::unref()
296 if (action_hook.is_linked())
297 stateSet_->erase(stateSet_->iterator_to(*this));
299 lmm_variable_free(getModel()->getMaxminSystem(), getVariable());
300 xbt_free(getCategory());
307 void StorageN11Action::cancel()
309 setState(Action::State::failed);
312 void StorageN11Action::suspend()
314 XBT_IN("(%p)", this);
315 if (suspended_ != 2) {
316 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), 0.0);
322 void StorageN11Action::resume()
327 bool StorageN11Action::isSuspended()
329 return suspended_ == 1;
332 void StorageN11Action::setMaxDuration(double /*duration*/)
337 void StorageN11Action::setPriority(double /*priority*/)