/* Internal function used to factorize code between
* MSG_task_isend_with_matching() and MSG_task_dsend().
*/
static XBT_INLINE
msg_comm_t MSG_task_isend_internal(msg_task_t task, const char *alias,
int (*match_fun)(void*,void*, smx_synchro_t),
void *match_data, void_f_pvoid_t cleanup,
int detached)
{
simdata_task_t t_simdata = NULL;
msg_process_t process = MSG_process_self();
msg_mailbox_t mailbox = MSG_mailbox_get_by_alias(alias);
int call_end = TRACE_msg_task_put_start(task);
/* Prepare the task to send */
t_simdata = task->simdata;
t_simdata->sender = process;
t_simdata->source = ((simdata_process_t) SIMIX_process_self_get_data(process))->m_host;
if (t_simdata->isused != 0) {
if (msg_global->debug_multiple_use){
XBT_ERROR("This task is already used in there:");
xbt_backtrace_display(t_simdata->isused);
XBT_ERROR("And you try to reuse it from here:");
xbt_backtrace_display_current();
} else {
xbt_assert(t_simdata->isused == 0,
"This task is still being used somewhere else. You cannot send it now. Go fix your code! (use --cfg=msg/debug_multiple_use:on to get the backtrace of the other process)");
}
}
if (msg_global->debug_multiple_use)
MSG_BT(t_simdata->isused, "Using Backtrace");
else
t_simdata->isused = (void*)1;
t_simdata->comm = NULL;
msg_global->sent_msg++;
/* Send it by calling SIMIX network layer */
smx_synchro_t act = simcall_comm_isend(SIMIX_process_self(), mailbox, t_simdata->bytes_amount,
t_simdata->rate, task, sizeof(void *),
match_fun, cleanup, NULL, match_data,detached);
t_simdata->comm = act; /* FIXME: is the field t_simdata->comm still useful? */
msg_comm_t comm;
if (detached) {
comm = NULL;
} else {
comm = xbt_new0(s_msg_comm_t, 1);
comm->task_sent = task;
comm->task_received = NULL;
comm->status = MSG_OK;
comm->s_comm = act;
}
if (TRACE_is_enabled())
simcall_set_category(act, task->category);
if (call_end)
TRACE_msg_task_put_end();
return comm;
}
/** \ingroup msg_task_usage
* \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)
{
xbt_ex_t e;
simdata_task_t simdata = task->simdata;
msg_process_t self = SIMIX_process_self();
simdata_process_t p_simdata = SIMIX_process_self_get_data(self);
e_smx_state_t comp_state;
msg_error_t status = MSG_OK;
TRACE_msg_task_execute_start(task);
xbt_assert((!simdata->compute) && (task->simdata->isused == 0),
"This task is executed somewhere else. Go fix your code! %d",
task->simdata->isused!=NULL);
XBT_DEBUG("Computing on %s", MSG_process_get_name(MSG_process_self()));
if (simdata->flops_amount == 0 && !simdata->host_nb) {
TRACE_msg_task_execute_end(task);
return MSG_OK;
}
TRY {
if (msg_global->debug_multiple_use)
MSG_BT(simdata->isused, "Using Backtrace");
else
simdata->isused = (void*)1;
if (simdata->host_nb > 0) {
simdata->compute = simcall_process_parallel_execute(task->name,
simdata->host_nb,
simdata->host_list,
simdata->flops_parallel_amount,
simdata->bytes_parallel_amount,
1.0, -1.0);
XBT_DEBUG("Parallel execution action created: %p", simdata->compute);
} else {
unsigned long affinity_mask = (unsigned long) xbt_dict_get_or_null_ext(simdata->affinity_mask_db, (char *) p_simdata->m_host, sizeof(msg_host_t));
XBT_DEBUG("execute %s@%s with affinity(0x%04lx)", MSG_task_get_name(task), MSG_host_get_name(p_simdata->m_host), affinity_mask);
simdata->compute = simcall_process_execute(task->name,
simdata->flops_amount,
simdata->priority,
simdata->bound,
affinity_mask
);
}
simcall_set_category(simdata->compute, task->category);
p_simdata->waiting_action = simdata->compute;
comp_state = simcall_process_execution_wait(simdata->compute);
p_simdata->waiting_action = NULL;
if (msg_global->debug_multiple_use && simdata->isused!=0)
xbt_ex_free(*(xbt_ex_t*)simdata->isused);
simdata->isused = 0;
XBT_DEBUG("Execution task '%s' finished in state %d",
task->name, (int)comp_state);
}
CATCH(e) {
switch (e.category) {
case cancel_error:
status = MSG_TASK_CANCELED;
break;
case host_error:
status = MSG_HOST_FAILURE;
break;
default:
RETHROW;
}
xbt_ex_free(e);
}
/* action ended, set comm and compute = NULL, the actions is already destroyed
* in the main function */
simdata->flops_amount = 0.0;
simdata->comm = NULL;
simdata->compute = NULL;
TRACE_msg_task_execute_end(task);
MSG_RETURN(status);
}
msg_error_t
MSG_mailbox_put_with_timeout(msg_mailbox_t mailbox, msg_task_t task,
double timeout)
{
msg_error_t ret = MSG_OK;
simdata_task_t t_simdata = NULL;
msg_process_t process = MSG_process_self();
simdata_process_t p_simdata = SIMIX_process_self_get_data(process);
int call_end = TRACE_msg_task_put_start(task); //must be after CHECK_HOST()
/* Prepare the task to send */
t_simdata = task->simdata;
t_simdata->sender = process;
t_simdata->source = ((simdata_process_t) SIMIX_process_self_get_data(process))->m_host;
if (t_simdata->isused != 0) {
if (msg_global->debug_multiple_use){
XBT_ERROR("This task is already used in there:");
xbt_backtrace_display(t_simdata->isused);
XBT_ERROR("And you try to reuse it from here:");
xbt_backtrace_display_current();
} else {
xbt_assert(t_simdata->isused == 0,
"This task is still being used somewhere else. You cannot send it now. Go fix your code! (use --cfg=msg/debug_multiple_use:on to get the backtrace of the other process)");
}
}
if (msg_global->debug_multiple_use)
MSG_BT(t_simdata->isused, "Using Backtrace");
else
t_simdata->isused = (void*)1;
t_simdata->comm = NULL;
msg_global->sent_msg++;
p_simdata->waiting_task = task;
xbt_ex_t e;
/* Try to send it by calling SIMIX network layer */
TRY {
smx_synchro_t comm = NULL; /* MC needs the comm to be set to NULL during the simix call */
comm = simcall_comm_isend(SIMIX_process_self(), mailbox,t_simdata->bytes_amount,
t_simdata->rate, task, sizeof(void *),
NULL, NULL, NULL, task, 0);
if (TRACE_is_enabled())
simcall_set_category(comm, task->category);
t_simdata->comm = comm;
simcall_comm_wait(comm, timeout);
}
CATCH(e) {
switch (e.category) {
case cancel_error:
ret = MSG_HOST_FAILURE;
break;
case network_error:
ret = MSG_TRANSFER_FAILURE;
break;
case timeout_error:
ret = MSG_TIMEOUT;
break;
default:
RETHROW;
}
xbt_ex_free(e);
/* If the send failed, it is not used anymore */
if (msg_global->debug_multiple_use && t_simdata->isused!=0)
xbt_ex_free(*(xbt_ex_t*)t_simdata->isused);
t_simdata->isused = 0;
}
p_simdata->waiting_task = NULL;
if (call_end)
TRACE_msg_task_put_end();
MSG_RETURN(ret);
}