X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/794197ca26e1237d004cb9f3b3fc9f2f754f4ea1..08a29a4221dc5cec95b766cd9b25c95dcc361df9:/src/msg/msg_task.cpp diff --git a/src/msg/msg_task.cpp b/src/msg/msg_task.cpp index 54afd3e29c..8068a8d9eb 100644 --- a/src/msg/msg_task.cpp +++ b/src/msg/msg_task.cpp @@ -4,9 +4,11 @@ * under the terms of the license (GNU LGPL) which comes with this package. */ #include "msg_private.hpp" -#include "src/simix/smx_private.hpp" +#include "src/instr/instr_private.hpp" #include +#include #include +#include #include #include @@ -25,8 +27,8 @@ Task::Task(std::string name, double flops_amount, double bytes_amount, void* dat MC_ignore_heap(&(id_), sizeof(id_)); } -Task::Task(std::string name, std::vector hosts, std::vector flops_amount, - std::vector bytes_amount, void* data) +Task::Task(std::string name, std::vector&& hosts, std::vector&& flops_amount, + std::vector&& bytes_amount, void* data) : Task(std::move(name), 1.0, 0, data) { parallel_ = true; @@ -65,20 +67,25 @@ msg_error_t Task::execute() xbt_assert(std::isfinite(flops_amount), "flops_amount is not finite!"); msg_error_t status = MSG_OK; - s4u::Host* host = SIMIX_process_self()->get_host(); - - set_used(); - - compute = simix::simcall([this, host] { - return kernel::activity::ExecImplPtr(new kernel::activity::ExecImpl(name_, tracing_category_, host)); - }); + if (flops_amount <= 0.0) + return MSG_OK; try { - compute->start(flops_amount, priority_, bound_); - e_smx_state_t comp_state = simcall_execution_wait(compute); + set_used(); + if (parallel_) + compute = s4u::this_actor::exec_init(hosts_, flops_parallel_amount, bytes_parallel_amount); + else + compute = s4u::this_actor::exec_init(flops_amount); + + compute->set_name(name_) + ->set_tracing_category(tracing_category_) + ->set_timeout(timeout_) + ->set_priority(1 / priority_) + ->set_bound(bound_) + ->wait(); set_not_used(); - XBT_DEBUG("Execution task '%s' finished in state %d", get_cname(), (int)comp_state); + XBT_DEBUG("Execution task '%s' finished", get_cname()); } catch (HostFailureException& e) { status = MSG_HOST_FAILURE; } catch (TimeoutError& e) { @@ -95,10 +102,62 @@ msg_error_t Task::execute() return status; } +s4u::CommPtr Task::send_async(std::string alias, void_f_pvoid_t cleanup, bool detached) +{ + if (TRACE_actor_is_enabled()) { + container_t process_container = simgrid::instr::Container::by_name(instr_pid(MSG_process_self())); + std::string key = std::string("p") + std::to_string(get_id()); + simgrid::instr::Container::get_root()->get_link("ACTOR_TASK_LINK")->start_event(process_container, "SR", key); + } + + /* Prepare the task to send */ + set_used(); + this->comm = nullptr; + msg_global->sent_msg++; + + s4u::CommPtr s4u_comm = s4u::Mailbox::by_name(alias)->put_init(this, bytes_amount)->set_rate(get_rate()); + comm = s4u_comm; + + if (detached) + comm->detach(cleanup); + else + comm->start(); + + if (TRACE_is_enabled() && has_tracing_category()) + simgrid::simix::simcall([this] { comm->get_impl()->set_category(std::move(tracing_category_)); }); + + return comm; +} + +msg_error_t Task::send(std::string alias, double timeout) +{ + msg_error_t ret = MSG_OK; + /* Try to send it */ + try { + comm = nullptr; // needed, otherwise MC gets confused. + s4u::CommPtr s4u_comm = send_async(alias, nullptr, false); + comm = s4u_comm; + comm->wait_for(timeout); + } catch (simgrid::TimeoutError& e) { + ret = MSG_TIMEOUT; + } catch (simgrid::CancelException& e) { + ret = MSG_HOST_FAILURE; + } catch (xbt_ex& e) { + if (e.category == network_error) + ret = MSG_TRANSFER_FAILURE; + else + throw; + + /* If the send failed, it is not used anymore */ + set_not_used(); + } + + return ret; +} void Task::cancel() { if (compute) { - simgrid::simix::simcall([this] { compute->cancel(); }); + compute->cancel(); } else if (comm) { comm->cancel(); } @@ -252,6 +311,181 @@ msg_error_t MSG_task_execute(msg_task_t task) return task->execute(); } +/** + * @brief Executes a parallel task and waits for its termination. + * + * @param task a #msg_task_t to execute on the location on which the process is running. + * + * @return #MSG_OK if the task was successfully completed, #MSG_TASK_CANCELED or #MSG_HOST_FAILURE otherwise + */ +msg_error_t MSG_parallel_task_execute(msg_task_t task) +{ + return task->execute(); +} + +msg_error_t MSG_parallel_task_execute_with_timeout(msg_task_t task, double timeout) +{ + task->set_timeout(timeout); + return task->execute(); +} + +/** + * @brief Sends a task on a mailbox. + * + * This is a non blocking function: use MSG_comm_wait() or MSG_comm_test() to end the communication. + * + * @param task a #msg_task_t to send on another location. + * @param alias name of the mailbox to sent the task to + * @return the msg_comm_t communication created + */ +msg_comm_t MSG_task_isend(msg_task_t task, const char* alias) +{ + return new simgrid::msg::Comm(task, nullptr, task->send_async(alias, nullptr, false)); +} + +/** + * @brief Sends a task on a mailbox with a maximum rate + * + * This is a non blocking function: use MSG_comm_wait() or MSG_comm_test() to end the communication. The maxrate + * parameter allows the application to limit the bandwidth utilization of network links when sending the task. + * + * @param task a #msg_task_t to send on another location. + * @param alias name of the mailbox to sent the task to + * @param maxrate the maximum communication rate for sending this task (byte/sec). + * @return the msg_comm_t communication created + */ +msg_comm_t MSG_task_isend_bounded(msg_task_t task, const char* alias, double maxrate) +{ + task->set_rate(maxrate); + return new simgrid::msg::Comm(task, nullptr, task->send_async(alias, nullptr, false)); +} + +/** + * @brief Sends a task on a mailbox. + * + * This is a non blocking detached send function. + * Think of it as a best effort send. Keep in mind that the third parameter is only called if the communication fails. + * If the communication does work, it is responsibility of the receiver code to free anything related to the task, as + * usual. More details on this can be obtained on + * this thread + * in the SimGrid-user mailing list archive. + * + * @param task a #msg_task_t to send on another location. + * @param alias name of the mailbox to sent the task to + * @param cleanup a function to destroy the task if the communication fails, e.g. MSG_task_destroy + * (if nullptr, no function will be called) + */ +void MSG_task_dsend(msg_task_t task, const char* alias, void_f_pvoid_t cleanup) +{ + task->send_async(alias, cleanup, true); +} + +/** + * @brief Sends a task on a mailbox with a maximal rate. + * + * This is a non blocking detached send function. + * Think of it as a best effort send. Keep in mind that the third parameter is only called if the communication fails. + * If the communication does work, it is responsibility of the receiver code to free anything related to the task, as + * usual. More details on this can be obtained on + * this thread + * in the SimGrid-user mailing list archive. + * + * The rate parameter can be used to send a task with a limited bandwidth (smaller than the physical available value). + * Use MSG_task_dsend() if you don't limit the rate (or pass -1 as a rate value do disable this feature). + * + * @param task a #msg_task_t to send on another location. + * @param alias name of the mailbox to sent the task to + * @param cleanup a function to destroy the task if the communication fails, e.g. MSG_task_destroy (if nullptr, no + * function will be called) + * @param maxrate the maximum communication rate for sending this task (byte/sec) + * + */ +void MSG_task_dsend_bounded(msg_task_t task, const char* alias, void_f_pvoid_t cleanup, double maxrate) +{ + task->set_rate(maxrate); + task->send_async(alias, cleanup, true); +} +/** + * @brief Sends a task to a mailbox + * + * This is a blocking function, the execution flow will be blocked until the task is sent (and received on the other + * side if #MSG_task_receive is used). + * See #MSG_task_isend for sending tasks asynchronously. + * + * @param task the task to be sent + * @param alias the mailbox name to where the task is sent + * + * @return Returns #MSG_OK if the task was successfully sent, + * #MSG_HOST_FAILURE, or #MSG_TRANSFER_FAILURE otherwise. + */ +msg_error_t MSG_task_send(msg_task_t task, const char* alias) +{ + XBT_DEBUG("MSG_task_send: Trying to send a message on mailbox '%s'", alias); + return task->send(alias, -1); +} + +/** + * @brief Sends a task to a mailbox with a maximum rate + * + * This is a blocking function, the execution flow will be blocked until the task is sent. The maxrate parameter allows + * the application to limit the bandwidth utilization of network links when sending the task. + * + * The maxrate parameter can be used to send a task with a limited bandwidth (smaller than the physical available + * value). Use MSG_task_send() if you don't limit the rate (or pass -1 as a rate value do disable this feature). + * + * @param task the task to be sent + * @param alias the mailbox name to where the task is sent + * @param maxrate the maximum communication rate for sending this task (byte/sec) + * + * @return Returns #MSG_OK if the task was successfully sent, + * #MSG_HOST_FAILURE, or #MSG_TRANSFER_FAILURE otherwise. + */ +msg_error_t MSG_task_send_bounded(msg_task_t task, const char* alias, double maxrate) +{ + task->set_rate(maxrate); + return task->send(alias, -1); +} + +/** + * @brief Sends a task to a mailbox with a timeout + * + * This is a blocking function, the execution flow will be blocked until the task is sent or the timeout is achieved. + * + * @param task the task to be sent + * @param alias the mailbox name to where the task is sent + * @param timeout is the maximum wait time for completion (if -1, this call is the same as #MSG_task_send) + * + * @return Returns #MSG_OK if the task was successfully sent, + * #MSG_HOST_FAILURE, or #MSG_TRANSFER_FAILURE, or #MSG_TIMEOUT otherwise. + */ +msg_error_t MSG_task_send_with_timeout(msg_task_t task, const char* alias, double timeout) +{ + return task->send(alias, timeout); +} + +/** + * @brief Sends a task to a mailbox with a timeout and with a maximum rate + * + * This is a blocking function, the execution flow will be blocked until the task is sent or the timeout is achieved. + * + * The maxrate parameter can be used to send a task with a limited bandwidth (smaller than the physical available + * value). Use MSG_task_send_with_timeout() if you don't limit the rate (or pass -1 as a rate value do disable this + * feature). + * + * @param task the task to be sent + * @param alias the mailbox name to where the task is sent + * @param timeout is the maximum wait time for completion (if -1, this call is the same as #MSG_task_send) + * @param maxrate the maximum communication rate for sending this task (byte/sec) + * + * @return Returns #MSG_OK if the task was successfully sent, + * #MSG_HOST_FAILURE, or #MSG_TRANSFER_FAILURE, or #MSG_TIMEOUT otherwise. + */ +msg_error_t MSG_task_send_with_timeout_bounded(msg_task_t task, const char* alias, double timeout, double maxrate) +{ + task->set_rate(maxrate); + return task->send(alias, timeout); +} + /** @brief Destroys the given task. * * You should free user data, if any, @b before calling this destructor.