X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/66e4277badef8f22852720b79a78e1f091c3b679..f41c1507eed2335359077804d9f85f6f223f8826:/src/s4u/s4u_Exec.cpp diff --git a/src/s4u/s4u_Exec.cpp b/src/s4u/s4u_Exec.cpp index 047c786681..966fa79bcd 100644 --- a/src/s4u/s4u_Exec.cpp +++ b/src/s4u/s4u_Exec.cpp @@ -1,8 +1,10 @@ -/* Copyright (c) 2006-2019. The SimGrid Team. All rights reserved. */ +/* Copyright (c) 2006-2020. 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/Exception.hpp" +#include "simgrid/exec.h" #include "simgrid/s4u/Actor.hpp" #include "simgrid/s4u/Exec.hpp" #include "src/kernel/activity/ExecImpl.hpp" @@ -12,68 +14,114 @@ XBT_LOG_NEW_DEFAULT_SUBCATEGORY(s4u_exec, s4u_activity, "S4U asynchronous execut namespace simgrid { namespace s4u { -simgrid::xbt::signal s4u::Exec::on_start; -simgrid::xbt::signal s4u::Exec::on_completion; +xbt::signal Exec::on_start; +xbt::signal Exec::on_completion; -Exec::Exec(sg_host_t host, double flops_amount) : Activity(), host_(host), flops_amount_(flops_amount) +Exec::Exec() { - Activity::set_remaining(flops_amount_); - pimpl_ = simix::simcall([this] { - return kernel::activity::ExecImplPtr(new kernel::activity::ExecImpl(name_, tracing_category_, - /*timeout_detector*/ nullptr, host_)); - }); + pimpl_ = kernel::activity::ExecImplPtr(new kernel::activity::ExecImpl()); } -Exec* Exec::start() +Exec* Exec::wait() { - simix::simcall([this] { - dynamic_cast(pimpl_.get())->start(flops_amount_, 1. / priority_, bound_); - }); - state_ = State::STARTED; - on_start(Actor::self()); + return this->wait_for(-1); +} + +Exec* Exec::wait_for(double timeout) +{ + if (state_ == State::INITED) + vetoable_start(); + + kernel::actor::ActorImpl* issuer = Actor::self()->get_impl(); + kernel::actor::simcall_blocking([this, issuer, timeout] { this->get_impl()->wait_for(issuer, timeout); }); + state_ = State::FINISHED; + on_completion(*Actor::self(), *this); + this->release_dependencies(); return this; } +int Exec::wait_any_for(std::vector* execs, double timeout) +{ + std::unique_ptr rexecs(new kernel::activity::ExecImpl*[execs->size()]); + std::transform(begin(*execs), end(*execs), rexecs.get(), + [](const ExecPtr& exec) { return static_cast(exec->pimpl_.get()); }); + + int changed_pos = simcall_execution_waitany_for(rexecs.get(), execs->size(), timeout); + if (changed_pos != -1) + execs->at(changed_pos)->release_dependencies(); + return changed_pos; +} + Exec* Exec::cancel() { - simgrid::simix::simcall([this] { dynamic_cast(pimpl_.get())->cancel(); }); + kernel::actor::simcall([this] { boost::static_pointer_cast(pimpl_)->cancel(); }); state_ = State::CANCELED; return this; } -Exec* Exec::wait() +/** @brief change the execution bound + * This means changing the maximal amount of flops per second that it may consume, regardless of what the host may + * deliver. Currently, this cannot be changed once the exec started. + */ +ExecPtr Exec::set_bound(double bound) { - if (state_ == State::INITED) - start(); - simcall_execution_wait(pimpl_); - state_ = State::FINISHED; - on_completion(Actor::self()); + xbt_assert(state_ == State::INITED, "Cannot change the bound of an exec after its start"); + bound_ = bound; return this; } - -Exec* Exec::wait_for(double) +ExecPtr Exec::set_timeout(double timeout) // XBT_ATTRIB_DEPRECATED_v329 { - THROW_UNIMPLEMENTED; + xbt_assert(state_ == State::INITED, "Cannot change the bound of an exec after its start"); + timeout_ = timeout; return this; } -/** @brief Returns whether the state of the exec is finished */ -bool Exec::test() +ExecPtr Exec::set_flops_amount(double flops_amount) { - xbt_assert(state_ == State::INITED || state_ == State::STARTED || state_ == State::FINISHED); - - if (state_ == State::FINISHED) - return true; + xbt_assert(state_ == State::INITED, "Cannot change the flop_amount of an exec after its start"); + flops_amounts_.assign(1, flops_amount); + Activity::set_remaining(flops_amounts_.front()); + return this; +} - if (state_ == State::INITED) - this->start(); +ExecPtr Exec::set_flops_amounts(const std::vector& flops_amounts) +{ + xbt_assert(state_ == State::INITED, "Cannot change the flops_amounts of an exec after its start"); + flops_amounts_ = flops_amounts; + parallel_ = true; + return this; +} - if (simcall_execution_test(pimpl_)) { - state_ = State::FINISHED; - return true; - } +ExecPtr Exec::set_bytes_amounts(const std::vector& bytes_amounts) +{ + xbt_assert(state_ == State::INITED, "Cannot change the bytes_amounts of an exec after its start"); + bytes_amounts_ = bytes_amounts; + parallel_ = true; + return this; +} - return false; +/** @brief Retrieve the host on which this activity takes place. + * If it runs on more than one host, only the first host is returned. + */ +Host* Exec::get_host() const +{ + return static_cast(pimpl_.get())->get_host(); +} +unsigned int Exec::get_host_number() const +{ + return static_cast(pimpl_.get())->get_host_number(); +} +double Exec::get_start_time() const +{ + return (pimpl_->surf_action_ == nullptr) ? -1 : pimpl_->surf_action_->get_start_time(); +} +double Exec::get_finish_time() const +{ + return (pimpl_->surf_action_ == nullptr) ? -1 : pimpl_->surf_action_->get_finish_time(); +} +double Exec::get_cost() const +{ + return (pimpl_->surf_action_ == nullptr) ? -1 : pimpl_->surf_action_->get_cost(); } /** @brief Change the execution priority, don't you think? @@ -89,17 +137,6 @@ ExecPtr Exec::set_priority(double priority) return this; } -/** @brief change the execution bound, ie the maximal amount of flops per second that it may consume, regardless of what - * the host may deliver - * - * Currently, this cannot be changed once the exec started. */ -ExecPtr Exec::set_bound(double bound) -{ - xbt_assert(state_ == State::INITED, "Cannot change the bound of an exec after its start"); - bound_ = bound; - return this; -} - /** @brief Change the host on which this activity takes place. * * The activity cannot be terminated already (but it may be started). */ @@ -108,61 +145,106 @@ ExecPtr Exec::set_host(Host* host) xbt_assert(state_ == State::INITED || state_ == State::STARTED, "Cannot change the host of an exec once it's done (state: %d)", (int)state_); if (state_ == State::STARTED) - boost::static_pointer_cast(pimpl_)->migrate(host); - host_ = host; - boost::static_pointer_cast(pimpl_)->host_ = host; + boost::static_pointer_cast(pimpl_)->migrate(host); + boost::static_pointer_cast(pimpl_)->set_host(host); return this; } -ExecPtr Exec::set_name(std::string name) +ExecPtr Exec::set_hosts(const std::vector& hosts) { - xbt_assert(state_ == State::INITED, "Cannot change the name of an exec after its start"); - name_ = name; + xbt_assert(state_ == State::INITED, "Cannot change the hosts of an exec once it's done (state: %d)", (int)state_); + hosts_ = hosts; + parallel_ = true; return this; } -ExecPtr Exec::set_tracing_category(std::string category) +///////////// SEQUENTIAL EXECUTIONS //////// +Exec* Exec::start() { - xbt_assert(state_ == State::INITED, "Cannot change the tracing category of an exec after its start"); - tracing_category_ = category; + if (is_parallel()) + kernel::actor::simcall([this] { + (*boost::static_pointer_cast(pimpl_)) + .set_hosts(hosts_) + .set_timeout(timeout_) + .set_flops_amounts(flops_amounts_) + .set_bytes_amounts(bytes_amounts_) + .start(); + }); + else + kernel::actor::simcall([this] { + (*boost::static_pointer_cast(pimpl_)) + .set_name(get_name()) + .set_tracing_category(get_tracing_category()) + .set_sharing_penalty(1. / priority_) + .set_bound(bound_) + .set_flops_amount(flops_amounts_.front()) + .start(); + }); + state_ = State::STARTED; + on_start(*Actor::self(), *this); return this; } -/** @brief Retrieve the host on which this activity takes place. */ -Host* Exec::get_host() -{ - return host_; -} - -/** @brief Returns the amount of flops that remain to be done */ -double Exec::get_remaining() +double Exec::get_remaining() const { - return simgrid::simix::simcall( - [this]() { return boost::static_pointer_cast(pimpl_)->get_remaining(); }); + if (is_parallel()) { + XBT_WARN("Calling get_remaining() on a parallel execution is not allowed. Call get_remaining_ratio() instead."); + return get_remaining_ratio(); + } else + return kernel::actor::simcall( + [this]() { return boost::static_pointer_cast(pimpl_)->get_remaining(); }); } -/** @brief Returns the ratio of elements that are still to do +/** @brief Returns the ratio of elements that are still to do * * The returned value is between 0 (completely done) and 1 (nothing done yet). */ -double Exec::get_remaining_ratio() +double Exec::get_remaining_ratio() const { - return simgrid::simix::simcall([this]() { - return boost::static_pointer_cast(pimpl_)->get_remaining_ratio(); - }); + if (is_parallel()) + return kernel::actor::simcall( + [this]() { return boost::static_pointer_cast(pimpl_)->get_par_remaining_ratio(); }); + else + return kernel::actor::simcall( + [this]() { return boost::static_pointer_cast(pimpl_)->get_seq_remaining_ratio(); }); } -void intrusive_ptr_release(simgrid::s4u::Exec* e) +} // namespace s4u +} // namespace simgrid +/* **************************** Public C interface *************************** */ +void sg_exec_set_bound(sg_exec_t exec, double bound) { - if (e->refcount_.fetch_sub(1, std::memory_order_release) == 1) { - std::atomic_thread_fence(std::memory_order_acquire); - delete e; - } + exec->set_bound(bound); } -void intrusive_ptr_add_ref(simgrid::s4u::Exec* e) +void sg_exec_set_host(sg_exec_t exec, sg_host_t new_host) { - e->refcount_.fetch_add(1, std::memory_order_relaxed); + exec->set_host(new_host); +} + +double sg_exec_get_remaining(const_sg_exec_t exec) +{ + return exec->get_remaining(); +} + +void sg_exec_start(sg_exec_t exec) +{ + exec->start(); +} + +void sg_exec_wait(sg_exec_t exec) +{ + exec->wait_for(-1); + exec->unref(); +} + +void sg_exec_wait_for(sg_exec_t exec, double timeout) +{ + try { + exec->wait_for(timeout); + } catch (const simgrid::TimeoutException&) { + // FIXME: add better exception handling + XBT_DEBUG("Exec reached its timeout"); + } + exec->unref(); } -} // namespace s4u -} // namespace simgrid