X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/2d2995483b57463581ffdc4365fe1999ddc306c2..d1283facbb31a936d01dd2c14982724aa30d3661:/src/s4u/s4u_Host.cpp diff --git a/src/s4u/s4u_Host.cpp b/src/s4u/s4u_Host.cpp index 54ecde3254..3c5e613344 100644 --- a/src/s4u/s4u_Host.cpp +++ b/src/s4u/s4u_Host.cpp @@ -1,11 +1,12 @@ -/* Copyright (c) 2006-2018. The SimGrid Team. All rights reserved. */ +/* Copyright (c) 2006-2019. The SimGrid Team. All rights reserved. */ /* This program is free software; you can redistribute it and/or modify it * under the terms of the license (GNU LGPL) which comes with this package. */ #include "simgrid/kernel/routing/NetPoint.hpp" +#include "simgrid/s4u/Actor.hpp" #include "simgrid/s4u/Engine.hpp" -#include "src/simix/smx_host_private.hpp" +#include "simgrid/s4u/Exec.hpp" #include "src/surf/HostImpl.hpp" #include @@ -28,9 +29,9 @@ simgrid::xbt::signal Host::on_destruction; simgrid::xbt::signal Host::on_state_change; simgrid::xbt::signal Host::on_speed_change; -Host::Host(const char* name) : name_(name) +Host::Host(std::string name) : name_(name) { - xbt_assert(Host::by_name_or_null(name) == nullptr, "Refusing to create a second host named '%s'.", name); + xbt_assert(Host::by_name_or_null(name) == nullptr, "Refusing to create a second host named '%s'.", name.c_str()); Engine::get_instance()->host_register(std::string(name_), this); new simgrid::surf::HostImpl(this); } @@ -48,7 +49,7 @@ Host::~Host() /** @brief Fire the required callbacks and destroy the object * - * Don't delete directly an Host, call h->destroy() instead. + * Don't delete directly a host, call h->destroy() instead. * * This is cumbersome but this is the simplest solution to ensure that the * onDestruction() callback receives a valid object (because of the destructor @@ -68,14 +69,6 @@ Host* Host::by_name(std::string name) { return Engine::get_instance()->host_by_name(name); } -Host* Host::by_name(const char* name) -{ - return Engine::get_instance()->host_by_name(std::string(name)); -} -Host* Host::by_name_or_null(const char* name) -{ - return Engine::get_instance()->host_by_name_or_null(std::string(name)); -} Host* Host::by_name_or_null(std::string name) { return Engine::get_instance()->host_by_name_or_null(name); @@ -93,8 +86,8 @@ void Host::turn_on() { if (is_off()) { simgrid::simix::simcall([this] { - this->pimpl_->turn_on(); this->pimpl_cpu->turn_on(); + this->pimpl_->turn_on(); on_state_change(*this); }); } @@ -124,7 +117,7 @@ int Host::get_pstate_count() const } /** - * \brief Return a copy of the list of actors that are executing on this host. + * @brief Return a copy of the list of actors that are executing on this host. * * Daemons and regular actors are all mixed in this list. */ @@ -156,13 +149,13 @@ void Host::actorList(std::vector* whereto) } /** - * \brief Find a route toward another host + * @brief Find a route toward another host * - * \param dest [IN] where to - * \param links [OUT] where to store the list of links (must exist, cannot be nullptr). - * \param latency [OUT] where to store the latency experienced on the path (or nullptr if not interested) + * @param dest [IN] where to + * @param links [OUT] where to store the list of links (must exist, cannot be nullptr). + * @param latency [OUT] where to store the latency experienced on the path (or nullptr if not interested) * It is the caller responsibility to initialize latency to 0 (we add to provided route) - * \pre links!=nullptr + * @pre links!=nullptr * * walk through the routing components tree and find a route between hosts * by calling each "get_route" function in each routing component. @@ -194,7 +187,7 @@ std::unordered_map* Host::get_properties() } /** Retrieve the property value (or nullptr if not set) */ -const char* Host::get_property(const char* key) const +const char* Host::get_property(std::string key) const { return this->pimpl_->get_property(key); } @@ -203,6 +196,22 @@ void Host::set_property(std::string key, std::string value) { simgrid::simix::simcall([this, key, value] { this->pimpl_->set_property(key, value); }); } +/** Specify a profile turning the host on and off according to a exhaustive list or a stochastic law. + * The profile must contain boolean values. */ +void Host::set_state_profile(kernel::profile::Profile* p) +{ + return simgrid::simix::simcall([this, p] { pimpl_cpu->set_state_profile(p); }); +} +/** Specify a profile modeling the external load according to a exhaustive list or a stochastic law. + * + * Each event of the profile represent a peak speed change that is due to external load. The values are given as a rate + * of the initial value. This means that the actual value is obtained by multiplying the initial value (the peek speed + * at this pstate level) by the rate coming from the profile. + */ +void Host::set_speed_profile(kernel::profile::Profile* p) +{ + return simgrid::simix::simcall([this, p] { pimpl_cpu->set_speed_profile(p); }); +} /** @brief Get the peak processor speed (in flops/s), at the specified pstate */ double Host::get_pstate_speed(int pstate_index) const @@ -210,13 +219,13 @@ double Host::get_pstate_speed(int pstate_index) const return simgrid::simix::simcall([this, pstate_index] { return this->pimpl_cpu->get_pstate_peak_speed(pstate_index); }); } -/** @brief Get the peak computing speed in flops/s at the current pstate, taking the external load into account. +/** @brief Get the peak computing speed in flops/s at the current pstate, NOT taking the external load into account. * * The amount of flops per second available for computing depends on several things: * - The current pstate determines the maximal peak computing speed (use @ref get_pstate_speed() to retrieve the * computing speed you would get at another pstate) - * - If you declared an external load, then this reduces the available computing speed - * (see @ref simgrid::surf::Cpu::set_speed_trace()) + * - If you declared an external load (with @ref simgrid::surf::Cpu::set_speed_profile()), you must multiply the + * result of get_speed() by get_available_speed() to retrieve what a new computation would get. * * The remaining speed is then shared between the executions located on this host. * You can retrieve the amount of tasks currently running on this host with @ref get_load(). @@ -230,7 +239,9 @@ double Host::get_speed() const return this->pimpl_cpu->get_speed(1.0); } /** @brief Returns the current computation load (in flops per second) + * * The external load (coming from an availability trace) is not taken in account. + * You may also be interested in the load plugin. */ double Host::get_load() const { @@ -238,7 +249,7 @@ double Host::get_load() const } /** @brief Get the available speed ratio, between 0 and 1. * - * This accounts for external load (see @ref simgrid::surf::Cpu::set_speed_trace()). + * This accounts for external load (see @ref simgrid::surf::Cpu::set_speed_profile()). */ double Host::get_available_speed() const { @@ -263,9 +274,9 @@ int Host::get_pstate() const } /** - * \ingroup simix_storage_management - * \brief Returns the list of storages attached to an host. - * \return a vector containing all storages attached to the host + * @ingroup simix_storage_management + * @brief Returns the list of storages attached to a host. + * @return a vector containing all storages attached to the host */ std::vector Host::get_attached_storages() const { @@ -291,14 +302,19 @@ std::unordered_map const& Host::get_mounted_storages() return *mounts_; } +ExecPtr Host::exec_async(double flops) +{ + return this_actor::exec_init(flops)->set_host(this); +} + void Host::execute(double flops) { execute(flops, 1.0 /* priority */); } + void Host::execute(double flops, double priority) { - smx_activity_t s = simcall_execution_start(nullptr, flops, 1 / priority /*priority*/, 0. /*bound*/, this); - simcall_execution_wait(s); + this_actor::exec_init(flops)->set_host(this)->set_priority(1 / priority)->start()->wait(); } } // namespace s4u @@ -313,11 +329,11 @@ size_t sg_host_count() * * 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 + * @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() + * @see sg_host_count() */ sg_host_t* sg_host_list() { @@ -417,22 +433,22 @@ double sg_host_speed(sg_host_t host) return host->get_speed(); } -/** \brief Return the speed of the processor (in flop/s) at a given pstate. See also @ref plugin_energy. +/** @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 + * @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->get_pstate_speed(pstate_index); } -/** \ingroup m_host_management - * \brief Return the number of cores. +/** @ingroup m_host_management + * @brief Return the number of cores. * - * \param host a host - * \return the number of cores + * @param host a host + * @return the number of cores */ int sg_host_core_count(sg_host_t host) { @@ -470,9 +486,9 @@ void sg_host_set_pstate(sg_host_t host, int pstate) host->set_pstate(pstate); } -/** \ingroup m_host_management +/** @ingroup m_host_management * - * \brief Start the host if it is off + * @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. @@ -482,9 +498,9 @@ void sg_host_turn_on(sg_host_t host) host->turn_on(); } -/** \ingroup m_host_management +/** @ingroup m_host_management * - * \brief Stop the host if it is on + * @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. @@ -519,7 +535,7 @@ int sg_host_is_off(sg_host_t host) return host->is_off(); } -/** @brief Get the properties of an host */ +/** @brief Get the properties of a host */ xbt_dict_t sg_host_get_properties(sg_host_t host) { xbt_dict_t as_dict = xbt_dict_new_homogeneous(xbt_free_f); @@ -532,13 +548,13 @@ xbt_dict_t sg_host_get_properties(sg_host_t host) return as_dict; } -/** \ingroup m_host_management - * \brief Returns the value of a given host property +/** @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) -*/ + * @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->get_property(name); @@ -550,11 +566,11 @@ void sg_host_set_property_value(sg_host_t host, const char* name, const char* va } /** - * \brief Find a route between two hosts + * @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). + * @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) { @@ -564,10 +580,10 @@ void sg_host_route(sg_host_t from, sg_host_t to, xbt_dynar_t links) xbt_dynar_push(links, &link); } /** - * \brief Find the latency of the route between two hosts + * @brief Find the latency of the route between two hosts * - * \param from where from - * \param to where to + * @param from where from + * @param to where to */ double sg_host_route_latency(sg_host_t from, sg_host_t to) { @@ -577,10 +593,10 @@ double sg_host_route_latency(sg_host_t from, sg_host_t to) return res; } /** - * \brief Find the bandwitdh of the route between two hosts + * @brief Find the bandwitdh of the route between two hosts * - * \param from where from - * \param to where to + * @param from where from + * @param to where to */ double sg_host_route_bandwidth(sg_host_t from, sg_host_t to) { @@ -612,10 +628,10 @@ void sg_host_dump(sg_host_t host) } } -/** \brief Return the list of actors attached to an host. +/** @brief Return the list of actors attached to a host. * - * \param host a host - * \param whereto a dynar in which we should push actors living on that 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) { @@ -629,3 +645,8 @@ sg_host_t sg_host_self() smx_actor_t process = SIMIX_process_self(); return (process == nullptr) ? nullptr : process->host_; } + +double sg_host_load(sg_host_t host) +{ + return host->get_load(); +}