X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/5e22c862d29ac2455672f2bc7f50bbcc9ade21c2..8a1c8b4f6c114eec0aab983ea2fbb019d4d7be04:/src/s4u/s4u_Host.cpp diff --git a/src/s4u/s4u_Host.cpp b/src/s4u/s4u_Host.cpp index 8c448a8811..9b39fd2e66 100644 --- a/src/s4u/s4u_Host.cpp +++ b/src/s4u/s4u_Host.cpp @@ -10,6 +10,7 @@ #include +XBT_LOG_NEW_DEFAULT_SUBCATEGORY(s4u_host, s4u, "Logging specific to the S4U hosts"); XBT_LOG_EXTERNAL_CATEGORY(surf_route); int USER_HOST_LEVEL = -1; @@ -30,7 +31,7 @@ simgrid::xbt::signal Host::onSpeedChange; Host::Host(const char* name) : name_(name) { xbt_assert(Host::by_name_or_null(name) == nullptr, "Refusing to create a second host named '%s'.", name); - Engine::getInstance()->host_register(std::string(name_), this); + Engine::get_instance()->host_register(std::string(name_), this); new simgrid::surf::HostImpl(this); } @@ -40,7 +41,7 @@ Host::~Host() delete pimpl_; if (pimpl_netpoint != nullptr) // not removed yet by a children class - simgrid::s4u::Engine::getInstance()->netpoint_unregister(pimpl_netpoint); + simgrid::s4u::Engine::get_instance()->netpoint_unregister(pimpl_netpoint); delete pimpl_cpu; delete mounts; } @@ -58,26 +59,26 @@ void Host::destroy() if (not currentlyDestroying_) { currentlyDestroying_ = true; onDestruction(*this); - Engine::getInstance()->host_unregister(std::string(name_)); + Engine::get_instance()->host_unregister(std::string(name_)); delete this; } } Host* Host::by_name(std::string name) { - return Engine::getInstance()->host_by_name(name); + return Engine::get_instance()->host_by_name(name); } Host* Host::by_name(const char* name) { - return Engine::getInstance()->host_by_name(std::string(name)); + return Engine::get_instance()->host_by_name(std::string(name)); } Host* Host::by_name_or_null(const char* name) { - return Engine::getInstance()->host_by_name_or_null(std::string(name)); + return Engine::get_instance()->host_by_name_or_null(std::string(name)); } Host* Host::by_name_or_null(std::string name) { - return Engine::getInstance()->host_by_name_or_null(name); + return Engine::get_instance()->host_by_name_or_null(name); } Host* Host::current() @@ -189,8 +190,7 @@ void Host::getProcesses(std::vector* list) } } -/** @brief Returns how many actors have been launched on this host */ -// FIXME: Specify whether the user should expect only non-daemon actors here! +/** @brief Returns how many actors (daemonized or not) have been launched on this host */ int Host::get_actor_count() { return this->extension()->process_list.size(); @@ -271,3 +271,330 @@ double Host::getLoad() } // namespace s4u } // namespace simgrid + +/* **************************** Public C interface *************************** */ +size_t sg_host_count() +{ + return simgrid::s4u::Engine::get_instance()->get_host_count(); +} +/** @brief Returns the host list + * + * Uses sg_host_count() to know the array size. + * + * \return an array of \ref sg_host_t containing all the hosts in the platform. + * \remark The host order in this array is generally different from the + * creation/declaration order in the XML platform (we use a hash table + * internally). + * \see sg_host_count() + */ +sg_host_t* sg_host_list() +{ + xbt_assert(sg_host_count() > 0, "There is no host!"); + std::vector hosts = simgrid::s4u::Engine::get_instance()->get_all_hosts(); + + sg_host_t* res = (sg_host_t*)malloc(sizeof(sg_host_t) * hosts.size()); + memcpy(res, hosts.data(), sizeof(sg_host_t) * hosts.size()); + + return res; +} + +const char* sg_host_get_name(sg_host_t host) +{ + return host->get_cname(); +} + +void* sg_host_extension_get(sg_host_t host, size_t ext) +{ + return host->extension(ext); +} + +size_t sg_host_extension_create(void (*deleter)(void*)) +{ + return simgrid::s4u::Host::extension_create(deleter); +} + +sg_host_t sg_host_by_name(const char* name) +{ + return simgrid::s4u::Host::by_name_or_null(name); +} + +static int hostcmp_voidp(const void* pa, const void* pb) +{ + return strcmp((*static_cast(pa))->get_cname(), + (*static_cast(pb))->get_cname()); +} + +xbt_dynar_t sg_hosts_as_dynar() +{ + xbt_dynar_t res = xbt_dynar_new(sizeof(sg_host_t), nullptr); + + std::vector list = simgrid::s4u::Engine::get_instance()->get_all_hosts(); + + for (auto const& host : list) { + if (host && host->pimpl_netpoint && host->pimpl_netpoint->is_host()) + xbt_dynar_push(res, &host); + } + xbt_dynar_sort(res, hostcmp_voidp); + return res; +} + +// ========= Layering madness ==============* + +// ========== User data Layer ========== +void* sg_host_user(sg_host_t host) +{ + return host->extension(USER_HOST_LEVEL); +} +void sg_host_user_set(sg_host_t host, void* userdata) +{ + host->extension_set(USER_HOST_LEVEL, userdata); +} +void sg_host_user_destroy(sg_host_t host) +{ + host->extension_set(USER_HOST_LEVEL, nullptr); +} + +// ========= storage related functions ============ +xbt_dict_t sg_host_get_mounted_storage_list(sg_host_t host) +{ + xbt_assert((host != nullptr), "Invalid parameters"); + xbt_dict_t res = xbt_dict_new_homogeneous(nullptr); + for (auto const& elm : host->getMountedStorages()) { + const char* mount_name = elm.first.c_str(); + sg_storage_t storage = elm.second; + xbt_dict_set(res, mount_name, (void*)storage->get_cname(), nullptr); + } + + return res; +} + +xbt_dynar_t sg_host_get_attached_storage_list(sg_host_t host) +{ + xbt_dynar_t storage_dynar = xbt_dynar_new(sizeof(const char*), nullptr); + std::vector storage_vector = host->get_attached_storages(); + for (auto const& name : storage_vector) + xbt_dynar_push(storage_dynar, &name); + return storage_dynar; +} + +// =========== user-level functions =============== +// ================================================ +/** @brief Returns the total speed of a host */ +double sg_host_speed(sg_host_t host) +{ + return host->getSpeed(); +} + +/** \brief Return the speed of the processor (in flop/s) at a given pstate. See also @ref plugin_energy. + * + * \param host host to test + * \param pstate_index pstate to test + * \return Returns the processor speed associated with pstate_index + */ +double sg_host_get_pstate_speed(sg_host_t host, int pstate_index) +{ + return host->getPstateSpeed(pstate_index); +} + +/** \ingroup m_host_management + * \brief Return the number of cores. + * + * \param host a host + * \return the number of cores + */ +int sg_host_core_count(sg_host_t host) +{ + return host->getCoreCount(); +} + +double sg_host_get_available_speed(sg_host_t host) +{ + return host->pimpl_cpu->get_available_speed(); +} + +/** @brief Returns the number of power states for a host. + * + * See also @ref plugin_energy. + */ +int sg_host_get_nb_pstates(sg_host_t host) +{ + return host->getPstatesCount(); +} + +/** @brief Gets the pstate at which that host currently runs. + * + * See also @ref plugin_energy. + */ +int sg_host_get_pstate(sg_host_t host) +{ + return host->getPstate(); +} +/** @brief Sets the pstate at which that host should run. + * + * See also @ref plugin_energy. + */ +void sg_host_set_pstate(sg_host_t host, int pstate) +{ + host->setPstate(pstate); +} + +/** \ingroup m_host_management + * + * \brief Start the host if it is off + * + * See also #sg_host_is_on() and #sg_host_is_off() to test the current state of the host and @ref plugin_energy + * for more info on DVFS. + */ +void sg_host_turn_on(sg_host_t host) +{ + host->turnOn(); +} + +/** \ingroup m_host_management + * + * \brief Stop the host if it is on + * + * See also #MSG_host_is_on() and #MSG_host_is_off() to test the current state of the host and @ref plugin_energy + * for more info on DVFS. + */ +void sg_host_turn_off(sg_host_t host) +{ + host->turnOff(); +} + +/** @ingroup m_host_management + * @brief Determine if a host is up and running. + * + * See also #sg_host_turn_on() and #sg_host_turn_off() to switch the host ON and OFF and @ref plugin_energy for more + * info on DVFS. + * + * @param host host to test + * @return Returns true if the host is up and running, and false if it's currently down + */ +int sg_host_is_on(sg_host_t host) +{ + return host->isOn(); +} + +/** @ingroup m_host_management + * @brief Determine if a host is currently off. + * + * See also #sg_host_turn_on() and #sg_host_turn_off() to switch the host ON and OFF and @ref plugin_energy for more + * info on DVFS. + */ +int sg_host_is_off(sg_host_t host) +{ + return host->isOff(); +} + +/** @brief Get the properties of an host */ +xbt_dict_t sg_host_get_properties(sg_host_t host) +{ + xbt_dict_t as_dict = xbt_dict_new_homogeneous(xbt_free_f); + std::map* props = host->getProperties(); + if (props == nullptr) + return nullptr; + for (auto const& elm : *props) { + xbt_dict_set(as_dict, elm.first.c_str(), xbt_strdup(elm.second.c_str()), nullptr); + } + return as_dict; +} + +/** \ingroup m_host_management + * \brief Returns the value of a given host property + * + * \param host a host + * \param name a property name + * \return value of a property (or nullptr if property not set) +*/ +const char* sg_host_get_property_value(sg_host_t host, const char* name) +{ + return host->getProperty(name); +} + +void sg_host_set_property_value(sg_host_t host, const char* name, const char* value) +{ + host->setProperty(name, value); +} + +/** + * \brief Find a route between two hosts + * + * \param from where from + * \param to where to + * \param links [OUT] where to store the list of links (must exist, cannot be nullptr). + */ +void sg_host_route(sg_host_t from, sg_host_t to, xbt_dynar_t links) +{ + std::vector vlinks; + from->routeTo(to, vlinks, nullptr); + for (auto const& link : vlinks) + xbt_dynar_push(links, &link); +} +/** + * \brief Find the latency of the route between two hosts + * + * \param from where from + * \param to where to + */ +double sg_host_route_latency(sg_host_t from, sg_host_t to) +{ + std::vector vlinks; + double res = 0; + from->routeTo(to, vlinks, &res); + return res; +} +/** + * \brief Find the bandwitdh of the route between two hosts + * + * \param from where from + * \param to where to + */ +double sg_host_route_bandwidth(sg_host_t from, sg_host_t to) +{ + double min_bandwidth = -1.0; + + std::vector vlinks; + from->routeTo(to, vlinks, nullptr); + for (auto const& link : vlinks) { + double bandwidth = link->bandwidth(); + if (bandwidth < min_bandwidth || min_bandwidth < 0.0) + min_bandwidth = bandwidth; + } + return min_bandwidth; +} + +/** @brief Displays debugging information about a host */ +void sg_host_dump(sg_host_t host) +{ + XBT_INFO("Displaying host %s", host->get_cname()); + XBT_INFO(" - speed: %.0f", host->getSpeed()); + XBT_INFO(" - available speed: %.2f", sg_host_get_available_speed(host)); + std::map* props = host->getProperties(); + + if (not props->empty()) { + XBT_INFO(" - properties:"); + for (auto const& elm : *props) { + XBT_INFO(" %s->%s", elm.first.c_str(), elm.second.c_str()); + } + } +} + +/** \brief Return the list of actors attached to an host. + * + * \param host a host + * \param whereto a dynar in which we should push actors living on that host + */ +void sg_host_get_actor_list(sg_host_t host, xbt_dynar_t whereto) +{ + for (auto& actor : host->extension()->process_list) { + s4u_Actor* p = actor.ciface(); + xbt_dynar_push(whereto, &p); + } +} + +sg_host_t sg_host_self() +{ + smx_actor_t process = SIMIX_process_self(); + return (process == nullptr) ? nullptr : process->host; +}