1 /* Copyright (c) 2013-2014. 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 "host_interface.hpp"
9 #include "simix/smx_private.h"
10 #include "cpu_cas01.hpp"
11 #include "simgrid/sg_config.h"
13 #include "network_interface.hpp"
14 #include "vm_interface.hpp"
16 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_host, surf,
17 "Logging specific to the SURF host module");
19 HostModel *surf_host_model = NULL;
25 surf_callback(void, Host*) hostCreatedCallbacks;
26 surf_callback(void, Host*) hostDestructedCallbacks;
27 surf_callback(void, Host*, e_surf_resource_state_t, e_surf_resource_state_t) hostStateChangedCallbacks;
28 surf_callback(void, HostAction*, e_surf_action_state_t, e_surf_action_state_t) hostActionStateChangedCallbacks;
30 void host_parse_init(sg_platf_host_cbarg_t host)
32 surf_host_model->createHost(host->id);
35 void host_add_traces(){
36 surf_host_model->addTraces();
42 HostModel::HostModel(const char *name)
45 p_cpuModel = surf_cpu_model_pm;
48 HostModel::HostModel()
50 p_cpuModel = surf_cpu_model_pm;
53 HostModel::~HostModel() {
56 /* Each VM has a dummy CPU action on the PM layer. This CPU action works as the
57 * constraint (capacity) of the VM in the PM layer. If the VM does not have any
58 * active task, the dummy CPU action must be deactivated, so that the VM does
59 * not get any CPU share in the PM layer. */
60 void HostModel::adjustWeightOfDummyCpuActions()
62 /* iterate for all virtual machines */
63 for (VMModel::vm_list_t::iterator iter =
64 VMModel::ws_vms.begin();
65 iter != VMModel::ws_vms.end(); ++iter) {
68 CpuCas01 *cpu_cas01 = static_cast<CpuCas01*>(ws_vm->p_cpu);
69 xbt_assert(cpu_cas01, "cpu-less host");
71 int is_active = lmm_constraint_used(cpu_cas01->getModel()->getMaxminSystem(), cpu_cas01->getConstraint());
72 // int is_active_old = constraint_is_active(cpu_cas01);
75 /* some tasks exist on this VM */
76 XBT_DEBUG("set the weight of the dummy CPU action on PM to 1");
78 /* FIXME: we should use lmm_update_variable_weight() ? */
79 /* FIXME: If we assign 1.05 and 0.05, the system makes apparently wrong values. */
80 ws_vm->p_action->setPriority(1);
83 /* no task exits on this VM */
84 XBT_DEBUG("set the weight of the dummy CPU action on PM to 0");
86 ws_vm->p_action->setPriority(0);
94 Host::Host(Model *model, const char *name, xbt_dict_t props,
95 xbt_dynar_t storage, RoutingEdge *netElm, Cpu *cpu)
96 : Resource(model, name, props)
97 , p_storage(storage), p_netElm(netElm), p_cpu(cpu)
100 surf_callback_emit(hostCreatedCallbacks, this);
103 Host::Host(Model *model, const char *name, xbt_dict_t props, lmm_constraint_t constraint,
104 xbt_dynar_t storage, RoutingEdge *netElm, Cpu *cpu)
105 : Resource(model, name, props, constraint)
106 , p_storage(storage), p_netElm(netElm), p_cpu(cpu)
108 p_params.ramsize = 0;
109 surf_callback_emit(hostCreatedCallbacks, this);
113 surf_callback_emit(hostDestructedCallbacks, this);
116 void Host::setState(e_surf_resource_state_t state){
117 e_surf_resource_state_t old = Resource::getState();
118 Resource::setState(state);
119 surf_callback_emit(hostStateChangedCallbacks, this, old, state);
120 p_cpu->setState(state);
124 return p_cpu->getCore();
127 double Host::getSpeed(double load){
128 return p_cpu->getSpeed(load);
131 double Host::getAvailableSpeed(){
132 return p_cpu->getAvailableSpeed();
135 double Host::getCurrentPowerPeak()
137 return p_cpu->getCurrentPowerPeak();
140 double Host::getPowerPeakAt(int pstate_index)
142 return p_cpu->getPowerPeakAt(pstate_index);
145 int Host::getNbPstates()
147 return p_cpu->getNbPstates();
150 void Host::setPstate(int pstate_index)
152 p_cpu->setPstate(pstate_index);
154 int Host::getPstate()
156 return p_cpu->getPstate();
159 xbt_dict_t Host::getProperties()
161 return p_cpu->getProperties();
164 Storage *Host::findStorageOnMountList(const char* mount)
170 XBT_DEBUG("Search for storage name '%s' on '%s'", mount, getName());
171 xbt_dynar_foreach(p_storage,cursor,mnt)
173 XBT_DEBUG("See '%s'",mnt.name);
174 if(!strcmp(mount,mnt.name)){
175 st = static_cast<Storage*>(mnt.storage);
179 if(!st) xbt_die("Can't find mount '%s' for '%s'", mount, getName());
183 xbt_dict_t Host::getMountedStorageList()
187 xbt_dict_t storage_list = xbt_dict_new_homogeneous(NULL);
188 char *storage_name = NULL;
190 xbt_dynar_foreach(p_storage,i,mnt){
191 storage_name = (char *)static_cast<Storage*>(mnt.storage)->getName();
192 xbt_dict_set(storage_list,mnt.name,storage_name,NULL);
197 xbt_dynar_t Host::getAttachedStorageList()
199 xbt_lib_cursor_t cursor;
202 xbt_dynar_t result = xbt_dynar_new(sizeof(void*), NULL);
203 xbt_lib_foreach(storage_lib, cursor, key, data) {
204 if(xbt_lib_get_level(xbt_lib_get_elm_or_null(storage_lib, key), SURF_STORAGE_LEVEL) != NULL) {
205 Storage *storage = static_cast<Storage*>(xbt_lib_get_level(xbt_lib_get_elm_or_null(storage_lib, key), SURF_STORAGE_LEVEL));
206 if(!strcmp((const char*)storage->p_attach,this->getName())){
207 xbt_dynar_push_as(result, void *, (void*)storage->getName());
214 Action *Host::open(const char* fullpath) {
219 size_t longest_prefix_length = 0;
221 char *file_mount_name = NULL;
222 char *mount_name = NULL;
224 XBT_DEBUG("Search for storage name for '%s' on '%s'", fullpath, getName());
225 xbt_dynar_foreach(p_storage,cursor,mnt)
227 XBT_DEBUG("See '%s'",mnt.name);
228 file_mount_name = (char *) xbt_malloc ((strlen(mnt.name)+1));
229 strncpy(file_mount_name,fullpath,strlen(mnt.name)+1);
230 file_mount_name[strlen(mnt.name)] = '\0';
232 if(!strcmp(file_mount_name,mnt.name) && strlen(mnt.name)>longest_prefix_length)
233 {/* The current mount name is found in the full path and is bigger than the previous*/
234 longest_prefix_length = strlen(mnt.name);
235 st = static_cast<Storage*>(mnt.storage);
237 free(file_mount_name);
239 if(longest_prefix_length>0)
240 { /* Mount point found, split fullpath into mount_name and path+filename*/
241 path = (char *) xbt_malloc ((strlen(fullpath)-longest_prefix_length+1));
242 mount_name = (char *) xbt_malloc ((longest_prefix_length+1));
243 strncpy(mount_name, fullpath, longest_prefix_length+1);
244 strncpy(path, fullpath+longest_prefix_length, strlen(fullpath)-longest_prefix_length+1);
245 path[strlen(fullpath)-longest_prefix_length] = '\0';
246 mount_name[longest_prefix_length] = '\0';
249 xbt_die("Can't find mount point for '%s' on '%s'", fullpath, getName());
251 XBT_DEBUG("OPEN %s on disk '%s'",path, st->getName());
252 Action *action = st->open((const char*)mount_name, (const char*)path);
254 free((char*)mount_name);
258 Action *Host::close(surf_file_t fd) {
259 Storage *st = findStorageOnMountList(fd->mount);
260 XBT_DEBUG("CLOSE %s on disk '%s'",fd->name, st->getName());
261 return st->close(fd);
264 Action *Host::read(surf_file_t fd, sg_size_t size) {
265 Storage *st = findStorageOnMountList(fd->mount);
266 XBT_DEBUG("READ %s on disk '%s'",fd->name, st->getName());
267 return st->read(fd, size);
270 Action *Host::write(surf_file_t fd, sg_size_t size) {
271 Storage *st = findStorageOnMountList(fd->mount);
272 XBT_DEBUG("WRITE %s on disk '%s'",fd->name, st->getName());
273 return st->write(fd, size);
276 int Host::unlink(surf_file_t fd) {
278 XBT_WARN("No such file descriptor. Impossible to unlink");
282 Storage *st = findStorageOnMountList(fd->mount);
283 /* Check if the file is on this storage */
284 if (!xbt_dict_get_or_null(st->p_content, fd->name)){
285 XBT_WARN("File %s is not on disk %s. Impossible to unlink", fd->name,
289 XBT_DEBUG("UNLINK %s on disk '%s'",fd->name, st->getName());
290 st->m_usedSize -= fd->size;
292 // Remove the file from storage
293 xbt_dict_remove(st->p_content, fd->name);
303 sg_size_t Host::getSize(surf_file_t fd){
307 xbt_dynar_t Host::getInfo( surf_file_t fd)
309 Storage *st = findStorageOnMountList(fd->mount);
310 sg_size_t *psize = xbt_new(sg_size_t, 1);
312 xbt_dynar_t info = xbt_dynar_new(sizeof(void*), NULL);
313 xbt_dynar_push_as(info, sg_size_t *, psize);
314 xbt_dynar_push_as(info, void *, fd->mount);
315 xbt_dynar_push_as(info, void *, (void *)st->getName());
316 xbt_dynar_push_as(info, void *, st->p_typeId);
317 xbt_dynar_push_as(info, void *, st->p_contentType);
322 sg_size_t Host::fileTell(surf_file_t fd){
323 return fd->current_position;
326 int Host::fileSeek(surf_file_t fd, sg_offset_t offset, int origin){
330 fd->current_position = offset;
333 fd->current_position += offset;
336 fd->current_position = fd->size + offset;
343 int Host::fileMove(surf_file_t fd, const char* fullpath){
344 /* Check if the new full path is on the same mount point */
345 if(!strncmp((const char*)fd->mount, fullpath, strlen(fd->mount))) {
346 sg_size_t *psize, *new_psize;
348 xbt_dict_get_or_null(findStorageOnMountList(fd->mount)->p_content,
350 new_psize = xbt_new(sg_size_t, 1);
352 if (psize){// src file exists
353 xbt_dict_remove(findStorageOnMountList(fd->mount)->p_content, fd->name);
354 char *path = (char *) xbt_malloc ((strlen(fullpath)-strlen(fd->mount)+1));
355 strncpy(path, fullpath+strlen(fd->mount),
356 strlen(fullpath)-strlen(fd->mount)+1);
357 xbt_dict_set(findStorageOnMountList(fd->mount)->p_content, path,
359 XBT_DEBUG("Move file from %s to %s, size '%llu'",fd->name, fullpath, *psize);
363 XBT_WARN("File %s doesn't exist", fd->name);
367 XBT_WARN("New full path %s is not on the same mount point: %s. Action has been canceled.",
368 fullpath, fd->mount);
373 xbt_dynar_t Host::getVms()
375 xbt_dynar_t dyn = xbt_dynar_new(sizeof(VM*), NULL);
377 /* iterate for all virtual machines */
378 for (VMModel::vm_list_t::iterator iter =
379 VMModel::ws_vms.begin();
380 iter != VMModel::ws_vms.end(); ++iter) {
383 if (this == ws_vm->p_subWs)
384 xbt_dynar_push(dyn, &ws_vm);
390 void Host::getParams(ws_params_t params)
395 void Host::setParams(ws_params_t params)
397 /* may check something here. */
405 void HostAction::setState(e_surf_action_state_t state){
406 e_surf_action_state_t old = getState();
407 Action::setState(state);
408 surf_callback_emit(hostActionStateChangedCallbacks, this, old, state);