X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/a5c102f3397e8112b97c27981bfdbcaac76d79f6..9663f72f22f125d9758e86273cd1d5d79e6ba410:/src/s4u/s4u_Exec.cpp diff --git a/src/s4u/s4u_Exec.cpp b/src/s4u/s4u_Exec.cpp index 89f738684c..7048f1bea5 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" @@ -12,67 +14,51 @@ XBT_LOG_NEW_DEFAULT_SUBCATEGORY(s4u_exec, s4u_activity, "S4U asynchronous execut namespace simgrid { namespace s4u { -xbt::signal Exec::on_start; -xbt::signal Exec::on_completion; +xbt::signal Exec::on_start; +xbt::signal Exec::on_completion; Exec::Exec() { pimpl_ = kernel::activity::ExecImplPtr(new kernel::activity::ExecImpl()); } -bool Exec::test() +Exec* Exec::wait() { - xbt_assert(state_ == State::INITED || state_ == State::STARTED || state_ == State::FINISHED); - - if (state_ == State::FINISHED) - return true; - - if (state_ == State::INITED) - this->start(); - - if (simcall_execution_test(pimpl_)) { - state_ = State::FINISHED; - return true; - } - - return false; + return this->wait_for(-1); } -Exec* Exec::wait() +Exec* Exec::wait_for(double timeout) { if (state_ == State::INITED) - start(); - simcall_execution_wait(pimpl_); + 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()); + on_completion(*Actor::self(), *this); + this->release_dependencies(); return this; } -Exec* Exec::wait_for(double) +int Exec::wait_any_for(std::vector* execs, double timeout) { - THROW_UNIMPLEMENTED; + 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() { - simix::simcall([this] { boost::static_pointer_cast(pimpl_)->cancel(); }); + kernel::actor::simcall([this] { boost::static_pointer_cast(pimpl_)->cancel(); }); state_ = State::CANCELED; return this; } -void intrusive_ptr_release(simgrid::s4u::Exec* e) -{ - if (e->refcount_.fetch_sub(1, std::memory_order_release) == 1) { - std::atomic_thread_fence(std::memory_order_acquire); - delete e; - } -} - -void intrusive_ptr_add_ref(simgrid::s4u::Exec* e) -{ - e->refcount_.fetch_add(1, std::memory_order_relaxed); -} - /** @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. @@ -83,130 +69,177 @@ ExecPtr Exec::set_bound(double bound) bound_ = bound; return this; } -ExecPtr Exec::set_timeout(double timeout) +ExecPtr Exec::set_timeout(double timeout) // XBT_ATTRIB_DEPRECATED_v329 { xbt_assert(state_ == State::INITED, "Cannot change the bound of an exec after its start"); timeout_ = timeout; return this; } -ExecPtr Exec::set_name(const std::string& name) +ExecPtr Exec::set_flops_amount(double flops_amount) { - 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 flop_amount of an exec after its start"); + flops_amounts_.assign(1, flops_amount); + Activity::set_remaining(flops_amounts_.front()); return this; } -/** @brief Change the execution priority, don't you think? - * - * An execution with twice the priority will get twice the amount of flops when the resource is shared. - * The default priority is 1. - * - * Currently, this cannot be changed once the exec started. */ -ExecPtr Exec::set_priority(double priority) +ExecPtr Exec::set_flops_amounts(const std::vector& flops_amounts) { - xbt_assert(state_ == State::INITED, "Cannot change the priority of an exec after its start"); - priority_ = priority; + xbt_assert(state_ == State::INITED, "Cannot change the flops_amounts of an exec after its start"); + flops_amounts_ = flops_amounts; + parallel_ = true; return this; } -ExecPtr Exec::set_tracing_category(const std::string& category) +ExecPtr Exec::set_bytes_amounts(const std::vector& bytes_amounts) { - xbt_assert(state_ == State::INITED, "Cannot change the tracing category of an exec after its start"); - tracing_category_ = category; + xbt_assert(state_ == State::INITED, "Cannot change the bytes_amounts of an exec after its start"); + bytes_amounts_ = bytes_amounts; + parallel_ = true; return this; } -///////////// SEQUENTIAL EXECUTIONS //////// -ExecSeq::ExecSeq(sg_host_t host, double flops_amount) : Exec(), flops_amount_(flops_amount) +/** @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 { - Activity::set_remaining(flops_amount_); - boost::static_pointer_cast(pimpl_)->set_host(host); + 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(); } -Exec* ExecSeq::start() +/** @brief Change the execution priority, don't you think? + * + * An execution with twice the priority will get twice the amount of flops when the resource is shared. + * The default priority is 1. + * + * Currently, this cannot be changed once the exec started. */ +ExecPtr Exec::set_priority(double priority) { - simix::simcall([this] { - boost::static_pointer_cast(pimpl_) - ->set_name(name_) - ->set_tracing_category(tracing_category_) - ->start(flops_amount_, 1. / priority_, bound_); - }); - state_ = State::STARTED; - on_start(*Actor::self()); + xbt_assert(state_ == State::INITED, "Cannot change the priority of an exec after its start"); + priority_ = priority; return this; } -/** @brief Returns whether the state of the exec is finished */ /** @brief Change the host on which this activity takes place. * * The activity cannot be terminated already (but it may be started). */ -ExecPtr ExecSeq::set_host(Host* host) +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; } - -/** @brief Retrieve the host on which this activity takes place. */ -Host* ExecSeq::get_host() +ExecPtr Exec::set_hosts(const std::vector& hosts) { - return host_; + 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; } -/** @brief Returns the amount of flops that remain to be done */ -double ExecSeq::get_remaining() +///////////// SEQUENTIAL EXECUTIONS //////// +Exec* Exec::start() +{ + 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; +} + +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 ExecSeq::get_remaining_ratio() +double Exec::get_remaining_ratio() const { - return simgrid::simix::simcall([this]() { - return boost::static_pointer_cast(pimpl_)->get_seq_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(); }); } -///////////// PARALLEL EXECUTIONS //////// -ExecPar::ExecPar(const std::vector& hosts, const std::vector& flops_amounts, - const std::vector& bytes_amounts) - : Exec(), hosts_(hosts), flops_amounts_(flops_amounts), bytes_amounts_(bytes_amounts) +} // namespace s4u +} // namespace simgrid +/* **************************** Public C interface *************************** */ +void sg_exec_set_bound(sg_exec_t exec, double bound) { - // For parallel executions, we need a special host to run the timeout detector. - host_ = hosts.front(); - boost::static_pointer_cast(pimpl_)->host_ = host_; + exec->set_bound(bound); } -Exec* ExecPar::start() +double sg_exec_get_remaining(const_sg_exec_t exec) { - simix::simcall([this] { - boost::static_pointer_cast(pimpl_)->set_timeout(timeout_); - boost::static_pointer_cast(pimpl_)->start(hosts_, flops_amounts_, bytes_amounts_); - }); - state_ = State::STARTED; - on_start(*Actor::self()); - return this; + return exec->get_remaining(); } -double ExecPar::get_remaining_ratio() + +void sg_exec_start(sg_exec_t exec) { - return simix::simcall( - [this]() { return boost::static_pointer_cast(pimpl_)->get_par_remaining_ratio(); }); + exec->start(); } -double ExecPar::get_remaining() +void sg_exec_wait(sg_exec_t exec) { - XBT_WARN("Calling get_remaining() on a parallel execution is not allowed. Call get_remaining_ratio() instead."); - return get_remaining_ratio(); + 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