X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/eadbe829389f23151f79257824f3164d7801bbc7..1a5f5ca0382afed749d4b1d15f6d528ddcd46135:/src/s4u/s4u_Exec.cpp diff --git a/src/s4u/s4u_Exec.cpp b/src/s4u/s4u_Exec.cpp index 75a2162cc7..7267df2567 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) 2006-2021. 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" @@ -12,65 +14,57 @@ 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() +Exec::Exec(kernel::activity::ExecImplPtr pimpl) { - pimpl_ = kernel::activity::ExecImplPtr(new kernel::activity::ExecImpl(name_, tracing_category_)); + pimpl_ = pimpl; } -bool Exec::test() +ExecPtr Exec::init() { - 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; + auto pimpl = kernel::activity::ExecImplPtr(new kernel::activity::ExecImpl()); + return ExecPtr(pimpl->get_iface()); } Exec* Exec::wait() { - if (state_ == State::INITED) - start(); - simcall_execution_wait(pimpl_); - state_ = State::FINISHED; - on_completion(*Actor::self()); - return this; + return this->wait_for(-1); } -Exec* Exec::wait_for(double) +Exec* Exec::wait_for(double timeout) { - THROW_UNIMPLEMENTED; -} + if (state_ == State::INITED) + vetoable_start(); -Exec* Exec::cancel() -{ - simix::simcall([this] { boost::static_pointer_cast(pimpl_)->cancel(); }); - state_ = State::CANCELED; + 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(*this); + this->release_dependencies(); return this; } -void intrusive_ptr_release(simgrid::s4u::Exec* e) +int Exec::wait_any_for(std::vector* execs, double timeout) { - if (e->refcount_.fetch_sub(1, std::memory_order_release) == 1) { - std::atomic_thread_fence(std::memory_order_acquire); - delete e; + std::vector rexecs(execs->size()); + std::transform(begin(*execs), end(*execs), begin(rexecs), + [](const ExecPtr& exec) { return static_cast(exec->pimpl_.get()); }); + + int changed_pos = simcall_execution_waitany_for(rexecs.data(), rexecs.size(), timeout); + if (changed_pos != -1) { + on_completion(*(execs->at(changed_pos))); + execs->at(changed_pos)->release_dependencies(); } + return changed_pos; } -void intrusive_ptr_add_ref(simgrid::s4u::Exec* e) +Exec* Exec::cancel() { - e->refcount_.fetch_add(1, std::memory_order_relaxed); + kernel::actor::simcall([this] { boost::static_pointer_cast(pimpl_)->cancel(); }); + state_ = State::CANCELED; + return this; } /** @brief change the execution bound @@ -79,24 +73,62 @@ void intrusive_ptr_add_ref(simgrid::s4u::Exec* e) */ ExecPtr Exec::set_bound(double bound) { - xbt_assert(state_ == State::INITED, "Cannot change the bound of an exec after its start"); + xbt_assert(state_ == State::INITED || state_ == State::STARTING, + "Cannot change the bound of an exec after its start"); 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"); + xbt_assert(state_ == State::INITED|| state_ == State::STARTING, + "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 || state_ == State::STARTING, + "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; +} + +ExecPtr Exec::set_flops_amounts(const std::vector& flops_amounts) +{ + xbt_assert(state_ == State::INITED || state_ == State::STARTING, + "Cannot change the flops_amounts of an exec after its start"); + flops_amounts_ = flops_amounts; + parallel_ = true; + return this; +} + +ExecPtr Exec::set_bytes_amounts(const std::vector& bytes_amounts) { - xbt_assert(state_ == State::INITED, "Cannot change the name of an exec after its start"); - name_ = name; + xbt_assert(state_ == State::INITED || state_ == State::STARTING, + "Cannot change the bytes_amounts of an exec after its start"); + bytes_amounts_ = bytes_amounts; + parallel_ = true; return this; } +/** @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_cost() const +{ + return (pimpl_->surf_action_ == nullptr) ? -1 : pimpl_->surf_action_->get_cost(); +} + /** @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. @@ -110,100 +142,199 @@ ExecPtr Exec::set_priority(double priority) return this; } -ExecPtr Exec::set_tracing_category(const std::string& category) +/** @brief Change the host on which this activity takes place. + * + * The activity cannot be terminated already (but it may be started). */ +ExecPtr Exec::set_host(Host* host) { - xbt_assert(state_ == State::INITED, "Cannot change the tracing category of an exec after its start"); - tracing_category_ = category; + xbt_assert(state_ == State::INITED || state_ == State::STARTING || state_ == State::STARTED, + "Cannot change the host of an exec once it's done (state: %d)", (int)state_); + hosts_.assign(1, host); + + if (state_ == State::STARTED) + boost::static_pointer_cast(pimpl_)->migrate(host); + + boost::static_pointer_cast(pimpl_)->set_host(host); + + if (state_ == State::STARTING) + // Setting the host may allow to start the activity, let's try + vetoable_start(); + return this; } -///////////// SEQUENTIAL EXECUTIONS //////// -ExecSeq::ExecSeq(sg_host_t host, double flops_amount) : Exec(), flops_amount_(flops_amount) +ExecPtr Exec::set_hosts(const std::vector& hosts) { - Activity::set_remaining(flops_amount_); - boost::static_pointer_cast(pimpl_)->set_host(host); + xbt_assert(state_ == State::INITED || state_ == State::STARTING, + "Cannot change the hosts of an exec once it's done (state: %d)", (int)state_); + + hosts_ = hosts; + parallel_ = true; + + // Setting the host may allow to start the activity, let's try + if (state_ == State::STARTING) + vetoable_start(); + + return this; } -Exec* ExecSeq::start() +///////////// SEQUENTIAL EXECUTIONS //////// +Exec* Exec::start() { - simix::simcall([this] { - boost::static_pointer_cast(pimpl_)->start(flops_amount_, 1. / priority_, bound_); - }); + 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(); + }); + + if (suspended_) + pimpl_->suspend(); + state_ = State::STARTED; - on_start(*Actor::self()); + start_time_ = pimpl_->surf_action_->get_start_time(); + on_start(*this); return this; } -/** @brief Returns whether the state of the exec is finished */ -/** @brief Change the host on which this activity takes place. +double Exec::get_remaining() const +{ + 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 * - * The activity cannot be terminated already (but it may be started). */ -ExecPtr ExecSeq::set_host(Host* host) + * The returned value is between 0 (completely done) and 1 (nothing done yet). + */ +double Exec::get_remaining_ratio() const { - 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; - return this; + 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(); }); } +} // namespace s4u +} // namespace simgrid +/* **************************** Public C interface *************************** */ +void sg_exec_set_bound(sg_exec_t exec, double bound) +{ + exec->set_bound(bound); +} -/** @brief Retrieve the host on which this activity takes place. */ -Host* ExecSeq::get_host() +const char* sg_exec_get_name(const_sg_exec_t exec) { - return host_; + return exec->get_cname(); } -/** @brief Returns the amount of flops that remain to be done */ -double ExecSeq::get_remaining() +void sg_exec_set_name(sg_exec_t exec, const char* name) { - return simgrid::simix::simcall( - [this]() { return boost::static_pointer_cast(pimpl_)->get_remaining(); }); + exec->set_name(name); } -/** @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() +void sg_exec_set_host(sg_exec_t exec, sg_host_t new_host) { - return simgrid::simix::simcall([this]() { - return boost::static_pointer_cast(pimpl_)->get_seq_remaining_ratio(); - }); + exec->set_host(new_host); } -///////////// 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) +double sg_exec_get_remaining(const_sg_exec_t exec) { - // For parallel executions, we need a special host to run the timeout detector. - host_ = hosts.front(); - boost::static_pointer_cast(pimpl_)->host_ = host_; + return exec->get_remaining(); } -Exec* ExecPar::start() +double sg_exec_get_remaining_ratio(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_ratio(); } -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->vetoable_start(); } -double ExecPar::get_remaining() +void sg_exec_cancel(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->cancel(); + exec->unref(); +} + +int sg_exec_test(sg_exec_t exec) +{ + bool finished = exec->test(); + if (finished) + exec->unref(); + return finished; +} + +sg_error_t sg_exec_wait(sg_exec_t exec) +{ + sg_error_t status = SG_OK; + + simgrid::s4u::ExecPtr s4u_exec(exec, false); + try { + s4u_exec->wait_for(-1); + } catch (const simgrid::TimeoutException&) { + status = SG_ERROR_TIMEOUT; + } catch (const simgrid::CancelException&) { + status = SG_ERROR_CANCELED; + } catch (const simgrid::HostFailureException&) { + status = SG_ERROR_HOST; + } + return status; +} + +sg_error_t sg_exec_wait_for(sg_exec_t exec, double timeout) +{ + sg_error_t status = SG_OK; + + simgrid::s4u::ExecPtr s4u_exec(exec, false); + try { + s4u_exec->wait_for(timeout); + } catch (const simgrid::TimeoutException&) { + status = SG_ERROR_TIMEOUT; + } catch (const simgrid::CancelException&) { + status = SG_ERROR_CANCELED; + } catch (const simgrid::HostFailureException&) { + status = SG_ERROR_HOST; + } + return status; +} + +int sg_exec_wait_any(sg_exec_t* execs, size_t count) +{ + return sg_exec_wait_any_for(execs, count, -1); +} + +int sg_exec_wait_any_for(sg_exec_t* execs, size_t count, double timeout) +{ + std::vector s4u_execs; + for (unsigned int i = 0; i < count; i++) + s4u_execs.emplace_back(execs[i], false); + + int pos = simgrid::s4u::Exec::wait_any_for(&s4u_execs, timeout); + for (unsigned i = 0; i < count; i++) { + if (pos != -1 && static_cast(pos) != i) + s4u_execs[i]->add_ref(); + } + return pos; } -} // namespace s4u -} // namespace simgrid