src/simgrid/host.cpp

   1 /* Copyright (c) 2013-201. The SimGrid Team.
   2  * All rights reserved.                                                     */
   3
   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. */
   6
   7 #include <simgrid/simix.hpp>
   8
   9 #include "xbt/dict.h"
  10 #include "simgrid/host.h"
  11 #include "simgrid/Host.hpp"
  12 #include "surf/surf.h" // routing_get_network_element_type FIXME:killme
  13
  14 #include "src/simix/smx_private.hpp"
  15 #include "src/surf/host_interface.hpp"
  16
  17 size_t sg_host_count()
  18 {
  19   return xbt_dict_length(host_list);
  20 }
  21
  22 const char *sg_host_get_name(sg_host_t host)
  23 {
  24         return host->getName().c_str();
  25 }
  26
  27 void* sg_host_extension_get(sg_host_t host, size_t ext)
  28 {
  29   return host->extension(ext);
  30 }
  31
  32 size_t sg_host_extension_create(void(*deleter)(void*))
  33 {
  34   return simgrid::Host::extension_create(deleter);
  35 }
  36
  37 sg_host_t sg_host_by_name(const char *name)
  38 {
  39   return simgrid::Host::by_name_or_null(name);
  40 }
  41
  42 sg_host_t sg_host_by_name_or_create(const char *name)
  43 {
  44   return simgrid::Host::by_name_or_create(name);
  45 }
  46
  47 xbt_dynar_t sg_hosts_as_dynar(void)
  48 {
  49         xbt_dynar_t res = xbt_dynar_new(sizeof(sg_host_t),NULL);
  50
  51   xbt_dict_cursor_t cursor = nullptr;
  52   const char* name = nullptr;
  53   simgrid::Host* host = nullptr;
  54         xbt_dict_foreach(host_list, cursor, name, host)
  55                 if(routing_get_network_element_type(name) == SURF_NETWORK_ELEMENT_HOST)
  56                         xbt_dynar_push(res, &host);
  57         return res;
  58 }
  59
  60 // ========= Layering madness ==============
  61
  62 int MSG_HOST_LEVEL;
  63 int SD_HOST_LEVEL;
  64 int SIMIX_HOST_LEVEL;
  65 int ROUTING_HOST_LEVEL;
  66 int USER_HOST_LEVEL;
  67
  68 #include "src/msg/msg_private.h" // MSG_host_priv_free. FIXME: killme by initializing that level in msg when used
  69 #include "src/simdag/simdag_private.h" // __SD_workstation_destroy. FIXME: killme by initializing that level in simdag when used
  70 #include "src/simix/smx_host_private.h" // SIMIX_host_destroy. FIXME: killme by initializing that level in simix when used
  71 #include "src/surf/cpu_interface.hpp"
  72 #include "src/surf/surf_routing.hpp"
  73
  74 void sg_host_init()
  75 {
  76   MSG_HOST_LEVEL = simgrid::Host::extension_create([](void *p) {
  77     __MSG_host_priv_free((msg_host_priv_t) p);
  78   });
  79
  80   ROUTING_HOST_LEVEL = simgrid::Host::extension_create([](void *p) {
  81           delete static_cast<simgrid::surf::NetCard*>(p);
  82   });
  83
  84   SD_HOST_LEVEL = simgrid::Host::extension_create(__SD_workstation_destroy);
  85   SIMIX_HOST_LEVEL = simgrid::Host::extension_create(SIMIX_host_destroy);
  86   USER_HOST_LEVEL = simgrid::Host::extension_create(NULL);
  87 }
  88
  89 // ========== User data Layer ==========
  90 void *sg_host_user(sg_host_t host) {
  91   return host->extension(USER_HOST_LEVEL);
  92 }
  93 void sg_host_user_set(sg_host_t host, void* userdata) {
  94   host->extension_set(USER_HOST_LEVEL,userdata);
  95 }
  96 void sg_host_user_destroy(sg_host_t host) {
  97   host->extension_set(USER_HOST_LEVEL, nullptr);
  98 }
  99
 100 // ========== MSG Layer ==============
 101 msg_host_priv_t sg_host_msg(sg_host_t host) {
 102         return (msg_host_priv_t) host->extension(MSG_HOST_LEVEL);
 103 }
 104 void sg_host_msg_set(sg_host_t host, msg_host_priv_t smx_host) {
 105   host->extension_set(MSG_HOST_LEVEL, smx_host);
 106 }
 107 // ========== SimDag Layer ==============
 108 SD_workstation_priv_t sg_host_sd(sg_host_t host) {
 109   return (SD_workstation_priv_t) host->extension(SD_HOST_LEVEL);
 110 }
 111 void sg_host_sd_set(sg_host_t host, SD_workstation_priv_t smx_host) {
 112   host->extension_set(SD_HOST_LEVEL, smx_host);
 113 }
 114 void sg_host_sd_destroy(sg_host_t host) {
 115   host->extension_set(SD_HOST_LEVEL, nullptr);
 116 }
 117
 118 // ========== Simix layer =============
 119 smx_host_priv_t sg_host_simix(sg_host_t host){
 120   return (smx_host_priv_t) host->extension(SIMIX_HOST_LEVEL);
 121 }
 122 void sg_host_simix_set(sg_host_t host, smx_host_priv_t smx_host) {
 123   host->extension_set(SIMIX_HOST_LEVEL, smx_host);
 124 }
 125 void sg_host_simix_destroy(sg_host_t host) {
 126   host->extension_set(SIMIX_HOST_LEVEL, nullptr);
 127 }
 128
 129 // =========== user-level functions ===============
 130 // ================================================
 131
 132 double sg_host_get_available_speed(sg_host_t host){
 133   return surf_host_get_available_speed(host);
 134 }
 135 /** @brief Returns the state of a host.
 136  *  @return 1 if the host is active or 0 if it has crashed.
 137  */
 138 int sg_host_is_on(sg_host_t host) {
 139         return host->pimpl_cpu->isOn();
 140 }
 141
 142 /** @brief Returns the number of power states for a host.
 143  *
 144  *  See also @ref SURF_plugin_energy.
 145  */
 146 int sg_host_get_nb_pstates(sg_host_t host) {
 147   return host->pimpl_cpu->getNbPStates();
 148 }
 149
 150 /** @brief Gets the pstate at which that host currently runs.
 151  *
 152  *  See also @ref SURF_plugin_energy.
 153  */
 154 int sg_host_get_pstate(sg_host_t host) {
 155   return host->getPState();
 156 }
 157 /** @brief Sets the pstate at which that host should run.
 158  *
 159  *  See also @ref SURF_plugin_energy.
 160  */
 161 void sg_host_set_pstate(sg_host_t host,int pstate) {
 162   host->setPState(pstate);
 163 }
 164
 165 namespace simgrid {
 166
 167 Host::Host(std::string const& id)
 168   : name_(id)
 169 {
 170 }
 171
 172 Host::~Host()
 173 {
 174 }
 175
 176 /** Start the host if it is off */
 177 void Host::turnOn()
 178 {
 179   simgrid::simix::kernel(std::bind(SIMIX_host_on, this));
 180 }
 181
 182 /** Stop the host if it is on */
 183 void Host::turnOff()
 184 {
 185   simgrid::simix::simcall<void>(SIMCALL_HOST_OFF, this);
 186 }
 187
 188 bool Host::isOn() {
 189   return pimpl_cpu->isOn();
 190 }
 191 bool Host::isOff() {
 192   return ! pimpl_cpu->isOn();
 193 }
 194
 195
 196 /** Get the properties assigned to a host */
 197 xbt_dict_t Host::getProperties()
 198 {
 199   return simgrid::simix::kernel(std::bind(sg_host_get_properties, this));
 200 }
 201
 202 /** Get the processes attached to the host */
 203 xbt_swag_t Host::getProcessList()
 204 {
 205   return simgrid::simix::kernel([&]() {
 206     return ((smx_host_priv_t)this->extension(SIMIX_HOST_LEVEL))->process_list;
 207   });
 208 }
 209
 210 /** Get the peak power of a host */
 211 double Host::getCurrentPowerPeak()
 212 {
 213   return simgrid::simix::kernel(
 214     std::bind(surf_host_get_current_power_peak, this));
 215 }
 216
 217 /** Get one power peak (in flops/s) of a host at a given pstate */
 218 double Host::getPowerPeakAt(int pstate_index)
 219 {
 220   return simgrid::simix::kernel(
 221     std::bind(surf_host_get_power_peak_at, this, pstate_index));
 222 }
 223
 224 /** @brief Get the speed of the cpu associated to a host */
 225 double Host::getSpeed() {
 226         return pimpl_cpu->getSpeed(1.0);
 227 }
 228 /** @brief Returns the number of core of the processor. */
 229 int Host::getCoreAmount() {
 230         return pimpl_cpu->getCore();
 231 }
 232
 233 Host* Host::by_name_or_null(const char* name)
 234 {
 235   return (Host*) xbt_dict_get_or_null(host_list, name);
 236 }
 237
 238 Host* Host::by_name_or_create(const char* name)
 239 {
 240   Host* host = by_name_or_null(name);
 241   if (host == nullptr) {
 242     host = new Host(name);
 243     xbt_dict_set(host_list, name, host, NULL);
 244   }
 245   return host;
 246 }
 247
 248 /** @brief Set the pstate at which the host should run */
 249 void Host::setPState(int pstate_index)
 250 {
 251   simgrid::simix::kernel(std::bind(
 252       &simgrid::surf::Cpu::setPState, pimpl_cpu, pstate_index
 253   ));
 254 }
 255 /** @brief Retrieve the pstate at which the host is currently running */
 256 int Host::getPState()
 257 {
 258   return pimpl_cpu->getPState();
 259 }
 260
 261 void Host::getParams(vm_params_t params)
 262 {
 263   simgrid::simix::kernel([&]() {
 264     this->extension<simgrid::surf::Host>()->getParams(params);
 265   });
 266 }
 267
 268 void Host::setParams(vm_params_t params)
 269 {
 270   simgrid::simix::kernel([&]() {
 271     this->extension<simgrid::surf::Host>()->setParams(params);
 272   });
 273 }
 274
 275 /**
 276  * \ingroup simix_storage_management
 277  * \brief Returns the list of storages mounted on an host.
 278  * \return a dict containing all storages mounted on the host
 279  */
 280 xbt_dict_t Host::getMountedStorageList()
 281 {
 282   return simgrid::simix::kernel([&] {
 283     return this->extension<simgrid::surf::Host>()->getMountedStorageList();
 284   });
 285 }
 286
 287 /**
 288  * \ingroup simix_storage_management
 289  * \brief Returns the list of storages attached to an host.
 290  * \return a dict containing all storages attached to the host
 291  */
 292 xbt_dynar_t Host::getAttachedStorageList()
 293 {
 294   return simgrid::simix::kernel([&] {
 295     return this->extension<simgrid::surf::Host>()->getAttachedStorageList();
 296   });
 297 }
 298
 299 }