X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/9ab646c308891c340270d62264b0d08354a1302b..4542c9b5320d863afc041a1d9eada0f27e133086:/src/s4u/s4u_Exec.cpp diff --git a/src/s4u/s4u_Exec.cpp b/src/s4u/s4u_Exec.cpp index a0d3cc5302..2ae3ad2f2d 100644 --- a/src/s4u/s4u_Exec.cpp +++ b/src/s4u/s4u_Exec.cpp @@ -1,94 +1,145 @@ -/* Copyright (c) 2006-2020. 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" +#include "src/kernel/actor/ActorImpl.hpp" +#include "src/kernel/actor/SimcallObserver.hpp" #include "xbt/log.h" XBT_LOG_NEW_DEFAULT_SUBCATEGORY(s4u_exec, s4u_activity, "S4U asynchronous executions"); 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()); + pimpl_ = pimpl; } -bool Exec::test() +void Exec::complete(Activity::State state) { - xbt_assert(state_ == State::INITED || state_ == State::STARTED || state_ == State::STARTING || - state_ == State::FINISHED); - - if (state_ == State::FINISHED) - return true; - - if (state_ == State::INITED || state_ == State::STARTING) - this->vetoable_start(); - - if (simcall_execution_test(pimpl_)) { - state_ = State::FINISHED; - this->release_dependencies(); - return true; - } - - return false; + Activity::complete(state); + on_completion(*this); } -Exec* Exec::wait() +ExecPtr Exec::init() { - return this->wait_for(-1); + auto pimpl = kernel::activity::ExecImplPtr(new kernel::activity::ExecImpl()); + return ExecPtr(pimpl->get_iface()); } -Exec* Exec::wait_for(double timeout) +Exec* Exec::start() { - if (state_ == State::INITED) - vetoable_start(); - simcall_execution_wait(pimpl_, timeout); - state_ = State::FINISHED; - on_completion(*Actor::self(), *this); - this->release_dependencies(); + kernel::actor::simcall([this] { + (*boost::static_pointer_cast(pimpl_)) + .set_name(get_name()) + .set_tracing_category(get_tracing_category()) + .start(); + }); + + if (suspended_) + pimpl_->suspend(); + + state_ = State::STARTED; + start_time_ = pimpl_->surf_action_->get_start_time(); + on_start(*this); 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(), + 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.get(), execs->size(), timeout); + kernel::actor::ActorImpl* issuer = kernel::actor::ActorImpl::self(); + kernel::actor::ExecutionWaitanySimcall observer{issuer, rexecs, timeout}; + int changed_pos = kernel::actor::simcall_blocking( + [&observer] { + kernel::activity::ExecImpl::wait_any_for(observer.get_issuer(), observer.get_execs(), observer.get_timeout()); + }, + &observer); if (changed_pos != -1) - execs->at(changed_pos)->release_dependencies(); + execs->at(changed_pos)->complete(State::FINISHED); return changed_pos; } -Exec* Exec::cancel() -{ - kernel::actor::simcall([this] { boost::static_pointer_cast(pimpl_)->cancel(); }); - state_ = State::CANCELED; - return this; -} - /** @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) { - xbt_assert(state_ == State::INITED, "Cannot change the bound of an exec after its start"); - bound_ = bound; + xbt_assert(state_ == State::INITED || state_ == State::STARTING, + "Cannot change the bound of an exec after its start"); + kernel::actor::simcall( + [this, bound] { boost::static_pointer_cast(pimpl_)->set_bound(bound); }); 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) +{ + xbt_assert(state_ == State::INITED || state_ == State::STARTING, + "Cannot change the priority of an exec after its start"); + kernel::actor::simcall([this, priority] { + boost::static_pointer_cast(pimpl_)->set_sharing_penalty(1. / priority); + }); + return this; +} + 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; + xbt_assert(state_ == State::INITED || state_ == State::STARTING, + "Cannot change the bound of an exec after its start"); + kernel::actor::simcall( + [this, timeout] { boost::static_pointer_cast(pimpl_)->set_timeout(timeout); }); + return this; +} + +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"); + kernel::actor::simcall([this, flops_amount] { + boost::static_pointer_cast(pimpl_)->set_flops_amount(flops_amount); + }); + Activity::set_remaining(flops_amount); + 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"); + kernel::actor::simcall([this, flops_amounts] { + boost::static_pointer_cast(pimpl_)->set_flops_amounts(flops_amounts); + }); + parallel_ = true; + return this; +} + +ExecPtr Exec::set_bytes_amounts(const std::vector& bytes_amounts) +{ + xbt_assert(state_ == State::INITED || state_ == State::STARTING, + "Cannot change the bytes_amounts of an exec after its start"); + kernel::actor::simcall([this, bytes_amounts] { + boost::static_pointer_cast(pimpl_)->set_bytes_amounts(bytes_amounts); + }); + parallel_ = true; return this; } @@ -103,118 +154,179 @@ unsigned int Exec::get_host_number() const { return static_cast(pimpl_.get())->get_host_number(); } -double Exec::get_start_time() const + +/** @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) { - return (pimpl_->surf_action_ == nullptr) ? -1 : pimpl_->surf_action_->get_start_time(); + xbt_assert(state_ == State::INITED || state_ == State::STARTING || state_ == State::STARTED, + "Cannot change the host of an exec once it's done (state: %s)", to_c_str(state_)); + + if (state_ == State::STARTED) + boost::static_pointer_cast(pimpl_)->migrate(host); + + kernel::actor::simcall( + [this, 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; } -double Exec::get_finish_time() const + +ExecPtr Exec::set_hosts(const std::vector& hosts) { - return (pimpl_->surf_action_ == nullptr) ? -1 : pimpl_->surf_action_->get_finish_time(); + xbt_assert(state_ == State::INITED || state_ == State::STARTING, + "Cannot change the hosts of an exec once it's done (state: %s)", to_c_str(state_)); + + kernel::actor::simcall( + [this, hosts] { boost::static_pointer_cast(pimpl_)->set_hosts(hosts); }); + parallel_ = true; + + // Setting the host may allow to start the activity, let's try + if (state_ == State::STARTING) + vetoable_start(); + + return this; } + 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. - * The default priority is 1. +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 * - * Currently, this cannot be changed once the exec started. */ -ExecPtr Exec::set_priority(double priority) + * The returned value is between 0 (completely done) and 1 (nothing done yet). + */ +double Exec::get_remaining_ratio() const { - xbt_assert(state_ == State::INITED, "Cannot change the priority of an exec after its start"); - priority_ = priority; - 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(); }); } -///////////// SEQUENTIAL EXECUTIONS //////// -ExecSeq::ExecSeq(sg_host_t host, double flops_amount) : Exec(), flops_amount_(flops_amount) +bool Exec::is_assigned() const { - Activity::set_remaining(flops_amount_); - boost::static_pointer_cast(pimpl_)->set_host(host); + return not boost::static_pointer_cast(pimpl_)->get_hosts().empty(); } +} // namespace s4u +} // namespace simgrid -Exec* ExecSeq::start() +/* **************************** Public C interface *************************** */ +void sg_exec_set_bound(sg_exec_t exec, double bound) { - 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_amount_) - .start(); - }); - state_ = State::STARTED; - on_start(*Actor::self(), *this); - return this; + exec->set_bound(bound); } -/** @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) +const char* sg_exec_get_name(const_sg_exec_t exec) { - 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); - boost::static_pointer_cast(pimpl_)->set_host(host); - return this; + 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 kernel::actor::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 kernel::actor::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) { + return exec->get_remaining(); } -Exec* ExecPar::start() +double sg_exec_get_remaining_ratio(const_sg_exec_t exec) { - 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(); - }); - state_ = State::STARTED; - on_start(*Actor::self(), *this); - return this; + return exec->get_remaining_ratio(); } -double ExecPar::get_remaining_ratio() +void sg_exec_start(sg_exec_t exec) { - return kernel::actor::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