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 "src/kernel/routing/NetPoint.hpp"
9 #include "surf_private.h"
10 #include <math.h> /*ceil*/
12 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_storage);
18 static inline void routing_storage_type_free(void *r)
20 storage_type_t stype = (storage_type_t) r;
24 free(stype->content_type);
25 xbt_dict_free(&(stype->properties));
26 xbt_dict_free(&(stype->model_properties));
30 static inline void routing_storage_host_free(void *r)
32 xbt_dynar_t dyn = (xbt_dynar_t) r;
36 static void check_disk_attachment()
38 xbt_lib_cursor_t cursor;
41 xbt_lib_foreach(storage_lib, cursor, key, data) {
42 if (xbt_lib_get_level(xbt_lib_get_elm_or_null(storage_lib, key), SURF_STORAGE_LEVEL) != nullptr) {
43 simgrid::surf::Storage* storage =
44 static_cast<simgrid::surf::Storage*>(xbt_lib_get_or_null(storage_lib, key, SURF_STORAGE_LEVEL));
45 simgrid::kernel::routing::NetPoint* host_elm = sg_netcard_by_name_or_null(storage->attach_);
47 surf_parse_error("Unable to attach storage %s: host %s does not exist.", storage->getName(), storage->attach_);
52 void storage_register_callbacks()
54 simgrid::surf::on_postparse.connect(check_disk_attachment);
55 instr_routing_define_callbacks();
57 ROUTING_STORAGE_LEVEL = xbt_lib_add_level(storage_lib, xbt_free_f);
58 ROUTING_STORAGE_HOST_LEVEL = xbt_lib_add_level(storage_lib, routing_storage_host_free);
59 ROUTING_STORAGE_TYPE_LEVEL = xbt_lib_add_level(storage_type_lib, routing_storage_type_free);
60 SURF_STORAGE_LEVEL = xbt_lib_add_level(storage_lib, [](void *self) {
61 delete static_cast<simgrid::surf::Storage*>(self);
69 void surf_storage_model_init_default()
71 surf_storage_model = new simgrid::surf::StorageN11Model();
72 all_existing_models->push_back(surf_storage_model);
78 Storage* StorageN11Model::createStorage(const char* id, const char* type_id, const char* content_name,
79 const char* content_type, const char* attach)
82 xbt_assert(!surf_storage_resource_priv(surf_storage_resource_by_name(id)),
83 "Storage '%s' declared several times in the platform file", id);
85 storage_type_t storage_type = (storage_type_t) xbt_lib_get_or_null(storage_type_lib, type_id,ROUTING_STORAGE_TYPE_LEVEL);
87 double Bread = surf_parse_get_bandwidth((char*)xbt_dict_get(storage_type->model_properties, "Bread"),
88 "property Bread, storage",type_id);
89 double Bwrite = surf_parse_get_bandwidth((char*)xbt_dict_get(storage_type->model_properties, "Bwrite"),
90 "property Bwrite, storage",type_id);
91 double Bconnection = surf_parse_get_bandwidth((char*)xbt_dict_get(storage_type->model_properties, "Bconnection"),
92 "property Bconnection, storage",type_id);
94 Storage* storage = new StorageN11(this, id, maxminSystem_, Bread, Bwrite, Bconnection, type_id, (char*)content_name,
95 content_type, storage_type->size, (char*)attach);
96 storageCreatedCallbacks(storage);
97 xbt_lib_set(storage_lib, id, SURF_STORAGE_LEVEL, storage);
99 XBT_DEBUG("SURF storage create resource\n\t\tid '%s'\n\t\ttype '%s'\n\t\tBread '%f'\n", id, type_id, Bread);
101 p_storageList.push_back(storage);
106 double StorageN11Model::nextOccuringEvent(double now)
108 double min_completion = StorageModel::nextOccuringEventFull(now);
110 for(auto storage: p_storageList) {
112 // Foreach write action on that disk
113 for (auto write_action: storage->writeActions_) {
114 rate += lmm_variable_getvalue(write_action->getVariable());
117 min_completion = MIN(min_completion, (storage->size_-storage->usedSize_)/rate);
120 return min_completion;
123 void StorageN11Model::updateActionsState(double /*now*/, double delta)
126 ActionList *actionSet = getRunningActionSet();
127 for(ActionList::iterator it(actionSet->begin()), itNext=it, itend(actionSet->end())
128 ; it != itend ; it=itNext) {
131 StorageAction *action = static_cast<StorageAction*>(&*it);
133 if (action->type_ == WRITE) {
134 // Update the disk usage
135 // Update the file size
136 // For each action of type write
137 double current_progress = delta * lmm_variable_getvalue(action->getVariable());
138 long int incr = current_progress;
140 XBT_DEBUG("%s:\n\t progress = %.2f, current_progress = %.2f, incr = %ld, lrint(1) = %ld, lrint(2) = %ld",
141 action->file_->name, action->progress_, current_progress, incr,
142 lrint(action->progress_ + current_progress), lrint(action->progress_) + incr);
144 /* take care of rounding error accumulation */
145 if (lrint(action->progress_ + current_progress) > lrint(action->progress_) + incr)
148 action->progress_ += current_progress;
150 action->storage_->usedSize_ += incr; // disk usage
151 action->file_->current_position += incr; // current_position
152 // which becomes the new file size
153 action->file_->size = action->file_->current_position;
155 sg_size_t *psize = xbt_new(sg_size_t,1);
156 *psize = action->file_->size;
157 xbt_dict_t content_dict = action->storage_->content_;
158 xbt_dict_set(content_dict, action->file_->name, psize, nullptr);
161 action->updateRemains(lmm_variable_getvalue(action->getVariable()) * delta);
163 if (action->getMaxDuration() > NO_MAX_DURATION)
164 action->updateMaxDuration(delta);
166 if (action->getRemainsNoUpdate() > 0 && lmm_get_variable_weight(action->getVariable()) > 0 &&
167 action->storage_->usedSize_ == action->storage_->size_) {
169 action->setState(Action::State::failed);
170 } else if (((action->getRemainsNoUpdate() <= 0) && (lmm_get_variable_weight(action->getVariable()) > 0)) ||
171 ((action->getMaxDuration() > NO_MAX_DURATION) && (action->getMaxDuration() <= 0))) {
173 action->setState(Action::State::done);
182 StorageN11::StorageN11(StorageModel* model, const char* name, lmm_system_t maxminSystem, double bread, double bwrite,
183 double bconnection, const char* type_id, char* content_name, const char* content_type,
184 sg_size_t size, char* attach)
185 : Storage(model, name, maxminSystem, bread, bwrite, bconnection, type_id, content_name, content_type, size, attach)
187 XBT_DEBUG("Create resource with Bconnection '%f' Bread '%f' Bwrite '%f' and Size '%llu'", bconnection, bread, bwrite, size);
190 StorageAction *StorageN11::open(const char* mount, const char* path)
192 XBT_DEBUG("\tOpen file '%s'",path);
194 sg_size_t size, *psize;
195 psize = (sg_size_t*) xbt_dict_get_or_null(content_, path);
196 // if file does not exist create an empty file
200 psize = xbt_new(sg_size_t,1);
203 xbt_dict_set(content_, path, psize, nullptr);
204 XBT_DEBUG("File '%s' was not found, file created.",path);
206 surf_file_t file = xbt_new0(s_surf_file_t,1);
207 file->name = xbt_strdup(path);
209 file->mount = xbt_strdup(mount);
210 file->current_position = 0;
212 StorageAction *action = new StorageN11Action(getModel(), 0, isOff(), this, OPEN);
213 action->file_ = file;
218 StorageAction *StorageN11::close(surf_file_t fd)
220 XBT_DEBUG("\tClose file '%s' size '%llu'", fd->name, fd->size);
221 // unref write actions from storage
222 for (std::vector<StorageAction*>::iterator it = writeActions_.begin(); it != writeActions_.end();) {
223 StorageAction *write_action = *it;
224 if ((write_action->file_) == fd) {
225 write_action->unref();
226 it = writeActions_.erase(it);
234 StorageAction *action = new StorageN11Action(getModel(), 0, isOff(), this, CLOSE);
238 StorageAction *StorageN11::read(surf_file_t fd, sg_size_t size)
240 if(fd->current_position + size > fd->size){
241 if (fd->current_position > fd->size){
244 size = fd->size - fd->current_position;
246 fd->current_position = fd->size;
249 fd->current_position += size;
251 StorageAction *action = new StorageN11Action(getModel(), size, isOff(), this, READ);
255 StorageAction *StorageN11::write(surf_file_t fd, sg_size_t size)
257 char *filename = fd->name;
258 XBT_DEBUG("\tWrite file '%s' size '%llu/%llu'",filename,size,fd->size);
260 StorageAction *action = new StorageN11Action(getModel(), size, isOff(), this, WRITE);
262 /* Substract the part of the file that might disappear from the used sized on the storage element */
263 usedSize_ -= (fd->size - fd->current_position);
264 // If the storage is full before even starting to write
265 if(usedSize_==size_) {
266 action->setState(Action::State::failed);
275 StorageN11Action::StorageN11Action(Model *model, double cost, bool failed, Storage *storage, e_surf_action_storage_type_t type)
276 : StorageAction(model, cost, failed,
277 lmm_variable_new(model->getMaxminSystem(), this, 1.0, -1.0 , 3),
279 XBT_IN("(%s,%g", storage->getName(), cost);
281 // Must be less than the max bandwidth for all actions
282 lmm_expand(model->getMaxminSystem(), storage->getConstraint(), getVariable(), 1.0);
289 lmm_expand(model->getMaxminSystem(), storage->constraintRead_, getVariable(), 1.0);
292 lmm_expand(model->getMaxminSystem(), storage->constraintWrite_, getVariable(), 1.0);
294 //TODO there is something annoying with what's below. Have to sort it out...
295 // Action *action = this;
296 // storage->p_writeActions->push_back(action);
303 int StorageN11Action::unref()
307 if (action_hook.is_linked())
308 stateSet_->erase(stateSet_->iterator_to(*this));
310 lmm_variable_free(getModel()->getMaxminSystem(), getVariable());
311 xbt_free(getCategory());
318 void StorageN11Action::cancel()
320 setState(Action::State::failed);
323 void StorageN11Action::suspend()
325 XBT_IN("(%p)", this);
326 if (suspended_ != 2) {
327 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), 0.0);
333 void StorageN11Action::resume()
338 bool StorageN11Action::isSuspended()
340 return suspended_ == 1;
343 void StorageN11Action::setMaxDuration(double /*duration*/)
348 void StorageN11Action::setPriority(double /*priority*/)