#include <cmath>
#include "simgrid/Exception.hpp"
+#include "simgrid/s4u/Actor.hpp"
#include "simgrid/s4u/Comm.hpp"
+#include "simgrid/s4u/Exec.hpp"
#include "simgrid/s4u/Mailbox.hpp"
#include "src/instr/instr_private.hpp"
-#include "src/kernel/activity/ExecImpl.hpp"
#include "src/msg/msg_private.hpp"
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(msg_gos, msg, "Logging specific to MSG (gos)");
-/**
- * @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 MSG_parallel_task_execute_with_timeout(task, -1);
-}
+namespace simgrid {
+namespace msg {
-msg_error_t MSG_parallel_task_execute_with_timeout(msg_task_t task, double timeout)
+bool Comm::test()
{
- e_smx_state_t comp_state;
- msg_error_t status = MSG_OK;
-
- xbt_assert((not task->compute) && not task->is_used(), "This task is executed somewhere else. Go fix your code!");
-
- XBT_DEBUG("Computing on %s", MSG_process_get_name(MSG_process_self()));
+ bool finished = false;
- if (task->flops_amount <= 0.0 && not task->hosts_.empty()) {
- return MSG_OK;
+ try {
+ finished = s_comm->test();
+ if (finished && task_received != nullptr) {
+ /* I am the receiver */
+ (*task_received)->set_not_used();
+ }
+ } catch (simgrid::TimeoutError& e) {
+ status_ = MSG_TIMEOUT;
+ finished = true;
+ } catch (simgrid::CancelException& e) {
+ status_ = MSG_TASK_CANCELED;
+ finished = true;
+ } catch (xbt_ex& e) {
+ if (e.category == network_error) {
+ status_ = MSG_TRANSFER_FAILURE;
+ finished = true;
+ } else {
+ throw;
+ }
}
- if (TRACE_actor_is_enabled())
- simgrid::instr::Container::by_name(instr_pid(MSG_process_self()))->get_state("ACTOR_STATE")->push_event("execute");
-
+ return finished;
+}
+msg_error_t Comm::wait_for(double timeout)
+{
try {
- task->set_used();
+ s_comm->wait_for(timeout);
- task->compute = boost::static_pointer_cast<simgrid::kernel::activity::ExecImpl>(simcall_execution_parallel_start(
- std::move(task->get_name()), task->hosts_.size(), task->hosts_.data(),
- (task->flops_parallel_amount.empty() ? nullptr : task->flops_parallel_amount.data()),
- (task->bytes_parallel_amount.empty() ? nullptr : task->bytes_parallel_amount.data()), -1.0, timeout));
- XBT_DEBUG("Parallel execution action created: %p", task->compute.get());
- if (task->has_tracing_category())
- simgrid::simix::simcall([task] { task->compute->set_category(std::move(task->get_tracing_category())); });
-
- comp_state = simcall_execution_wait(task->compute);
-
- task->set_not_used();
+ if (task_received != nullptr) {
+ /* I am the receiver */
+ (*task_received)->set_not_used();
+ }
- XBT_DEBUG("Execution task '%s' finished in state %d", task->get_cname(), (int)comp_state);
- } catch (simgrid::HostFailureException& e) {
- status = MSG_HOST_FAILURE;
+ /* FIXME: these functions are not traceable */
} catch (simgrid::TimeoutError& e) {
- status = MSG_TIMEOUT;
+ status_ = MSG_TIMEOUT;
} catch (simgrid::CancelException& e) {
- status = MSG_TASK_CANCELED;
+ status_ = MSG_TASK_CANCELED;
+ } catch (xbt_ex& e) {
+ if (e.category == network_error)
+ status_ = MSG_TRANSFER_FAILURE;
+ else
+ throw;
}
- /* action ended, set comm and compute = nullptr, the actions is already destroyed in the main function */
- task->flops_amount = 0.0;
- task->comm = nullptr;
- task->compute = nullptr;
-
- if (TRACE_actor_is_enabled())
- simgrid::instr::Container::by_name(instr_pid(MSG_process_self()))->get_state("ACTOR_STATE")->pop_event();
-
- return status;
+ return status_;
}
+} // namespace msg
+} // namespace simgrid
/**
* @brief Receives a task from a mailbox.
*/
msg_error_t MSG_task_receive_with_timeout(msg_task_t * task, const char *alias, double timeout)
{
- return MSG_task_receive_ext(task, alias, timeout, nullptr);
+ return MSG_task_receive_ext_bounded(task, alias, timeout, nullptr, -1);
}
/**
XBT_CRITICAL("MSG_task_irecv() was asked to write in a non empty task struct.");
/* Try to receive it by calling SIMIX network layer */
- msg_comm_t comm = new simgrid::msg::Comm(
- nullptr, task, mbox->get_init()->set_dst_data((void**)task, sizeof(msg_task_t*))->set_rate(rate)->start());
+ simgrid::s4u::CommPtr comm = simgrid::s4u::Mailbox::by_name(name)
+ ->get_init()
+ ->set_dst_data((void**)task, sizeof(msg_task_t*))
+ ->set_rate(rate)
+ ->start();
- return comm;
+ return new simgrid::msg::Comm(nullptr, task, comm);
}
/**
*/
int MSG_comm_test(msg_comm_t comm)
{
- bool finished = false;
-
- try {
- finished = comm->s_comm->test();
- if (finished && comm->task_received != nullptr) {
- /* I am the receiver */
- (*comm->task_received)->set_not_used();
- }
- } catch (simgrid::TimeoutError& e) {
- comm->status = MSG_TIMEOUT;
- finished = true;
- } catch (simgrid::CancelException& e) {
- comm->status = MSG_TASK_CANCELED;
- finished = true;
- }
- catch (xbt_ex& e) {
- if (e.category == network_error) {
- comm->status = MSG_TRANSFER_FAILURE;
- finished = true;
- } else {
- throw;
- }
- }
-
- return finished;
+ return comm->test();
}
/**
if (finished_index != -1) {
comm = xbt_dynar_get_as(comms, finished_index, msg_comm_t);
/* the communication is finished */
- comm->status = status;
+ comm->set_status(status);
if (status == MSG_OK && comm->task_received != nullptr) {
/* I am the receiver */
*/
msg_error_t MSG_comm_wait(msg_comm_t comm, double timeout)
{
- try {
- comm->s_comm->wait_for(timeout);
-
- if (comm->task_received != nullptr) {
- /* I am the receiver */
- (*comm->task_received)->set_not_used();
- }
-
- /* FIXME: these functions are not traceable */
- } catch (simgrid::TimeoutError& e) {
- comm->status = MSG_TIMEOUT;
- } catch (simgrid::CancelException& e) {
- comm->status = MSG_TASK_CANCELED;
- }
- catch (xbt_ex& e) {
- if (e.category == network_error)
- comm->status = MSG_TRANSFER_FAILURE;
- else
- throw;
- }
-
- return comm->status;
+ return comm->wait_for(timeout);
}
/** @brief This function is called by a sender and permit to wait for each communication
void MSG_comm_waitall(msg_comm_t * comm, int nb_elem, double timeout)
{
for (int i = 0; i < nb_elem; i++)
- MSG_comm_wait(comm[i], timeout);
+ comm[i]->wait_for(timeout);
}
/** @brief This function waits for the first communication finished in a list.
comm = xbt_dynar_get_as(comms, finished_index, msg_comm_t);
/* the communication is finished */
- comm->status = status;
+ comm->set_status(status);
if (comm->task_received != nullptr) {
/* I am the receiver */
*/
msg_error_t MSG_comm_get_status(msg_comm_t comm) {
- return comm->status;
+ return comm->get_status();
}
/** @brief Get a task (#msg_task_t) from a communication
* @param buff the data copied
* @param buff_size size of the buffer
*/
+// deprecated but used by MSG_set_copy_callback. Should be removed in v325
void MSG_comm_copy_data_from_SIMIX(simgrid::kernel::activity::CommImpl* comm, void* buff, size_t buff_size)
{
SIMIX_comm_copy_pointer_callback(comm, buff, buff_size);
}
}
-/**
- * @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 MSG_task_send_with_timeout(task, 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 MSG_task_send(task, alias);
-}
-
-/**
- * @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)
-{
- msg_error_t ret = MSG_OK;
-
- TRACE_msg_task_put_start(task);
-
- /* Prepare the task to send */
- task->set_used();
-
- msg_global->sent_msg++;
-
- /* Try to send it */
- try {
- simgrid::s4u::CommPtr comm =
- simgrid::s4u::Mailbox::by_name(alias)->put_init(task, task->bytes_amount)->set_rate(task->get_rate());
- task->comm = comm;
- comm->start();
- if (TRACE_is_enabled() && task->has_tracing_category())
- simgrid::simix::simcall(
- [comm, task] { comm->get_impl()->set_category(std::move(task->get_tracing_category())); });
- 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 */
- task->set_not_used();
- }
-
- return ret;
-}
-
-/**
- * @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 MSG_task_send_with_timeout(task, alias, timeout);
-}
-
/**
* @brief Look if there is a communication on a mailbox and return the PID of the sender process.
*
else
return -1;
}
-
