/* 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 <stdio.h>
-#include <stdlib.h>
-#include "simgrid/msg.h" /* Yeah! If you want to use msg, you need to include simgrid/msg.h */
+#include "simgrid/msg.h"
#include "simgrid/simix.h" /* semaphores for the barrier */
#include <xbt/replay.h>
*
* @section MSG_ex_actions Trace driven simulations
*
- * The <b>actions/actions.c</b> example demonstrates how to run trace-driven simulations. It
- * is very handy when you want to test an algorithm or protocol that
- * does nothing unless it receives some events from outside. For
- * example, a P2P protocol reacts to requests from the user, but
- * does nothing if there is no such event.
+ * The <b>actions/actions.c</b> example demonstrates how to run trace-driven simulations. It is very handy when you
+ * want to test an algorithm or protocol that does nothing unless it receives some events from outside. For example,
+ * a P2P protocol reacts to requests from the user, but does nothing if there is no such event.
*
- * In such situations, SimGrid allows to write your protocol in your
- * C file, and the events to react to in a separate text file.
- * Declare a function handling each of the events that you want to
- * accept in your trace files, register them using \ref
- * xbt_replay_action_register in your main, and then use \ref
- * MSG_action_trace_run to launch the simulation. You can either
- * have one trace file containing all your events, or a file per
- * simulated process. Check the tesh files in the example directory
- * for details on how to do it.
+ * In such situations, SimGrid allows to write your protocol in your C file, and the events to react to in a separate
+ * text file. Declare a function handling each of the events that you want to accept in your trace files, register
+ * them using \ref xbt_replay_action_register in your main, and then use \ref MSG_action_trace_run to launch the
+ * simulation. You can either have one trace file containing all your events, or a file per simulated process. Check
+ * the tesh files in the example directory for details on how to do it.
*
- * This example uses this approach to replay MPI-like traces. It
- * comes with a set of event handlers reproducing MPI events. This
- * is somehow similar to SMPI, yet differently implemented. This
- * code should probably be changed to use SMPI internals instead,
- * but wasn't, so far.
- *
+ * This example uses this approach to replay MPI-like traces. It comes with a set of event handlers reproducing MPI
+ * events. This is somehow similar to SMPI, yet differently implemented. This code should probably be changed to use
+ * SMPI internals instead, but wasn't, so far.
*/
XBT_LOG_NEW_DEFAULT_CATEGORY(actions, "Messages specific for this msg example");
static void asynchronous_cleanup(void)
{
- process_globals_t globals =
- (process_globals_t) MSG_process_get_data(MSG_process_self());
+ process_globals_t globals = (process_globals_t) MSG_process_get_data(MSG_process_self());
/* Destroy any isend which correspond to completed communications */
int found;
char to[250];
const char *size_str = action[3];
double size = parse_double(size_str);
- double clock = MSG_get_clock(); /* this "call" is free thanks to inlining */
+ double clock = MSG_get_clock();
sprintf(to, "%s_%s", MSG_process_get_name(MSG_process_self()), action[2]);
char to[250];
const char *size = action[3];
double clock = MSG_get_clock();
- process_globals_t globals =
- (process_globals_t) MSG_process_get_data(MSG_process_self());
+ process_globals_t globals = (process_globals_t) MSG_process_get_data(MSG_process_self());
sprintf(to, "%s_%s", MSG_process_get_name(MSG_process_self()), action[2]);
- msg_comm_t comm =
- MSG_task_isend(MSG_task_create(to, 0, parse_double(size), NULL), to);
+ msg_comm_t comm = MSG_task_isend(MSG_task_create(to, 0, parse_double(size), NULL), to);
xbt_dynar_push(globals->isends, &comm);
XBT_DEBUG("Isend on %s", MSG_process_get_name(MSG_process_self()));
asynchronous_cleanup();
}
-
static void action_recv(const char *const *action)
{
char mailbox_name[250];
msg_task_t task = NULL;
double clock = MSG_get_clock();
- sprintf(mailbox_name, "%s_%s", action[2],
- MSG_process_get_name(MSG_process_self()));
+ sprintf(mailbox_name, "%s_%s", action[2], MSG_process_get_name(MSG_process_self()));
ACT_DEBUG("Receiving: %s", NAME);
msg_error_t res = MSG_task_receive(&task, mailbox_name);
{
char mailbox[250];
double clock = MSG_get_clock();
- process_globals_t globals =
- (process_globals_t) MSG_process_get_data(MSG_process_self());
+ process_globals_t globals = (process_globals_t) MSG_process_get_data(MSG_process_self());
XBT_DEBUG("Irecv on %s", MSG_process_get_name(MSG_process_self()));
- sprintf(mailbox, "%s_%s", action[2],
- MSG_process_get_name(MSG_process_self()));
+ sprintf(mailbox, "%s_%s", action[2], MSG_process_get_name(MSG_process_self()));
msg_task_t t = NULL;
xbt_dynar_push(globals->tasks, &t);
- msg_comm_t c =
- MSG_task_irecv(xbt_dynar_get_ptr
- (globals->tasks, xbt_dynar_length(globals->tasks) - 1),
- mailbox);
+ msg_comm_t c = MSG_task_irecv(xbt_dynar_get_ptr(globals->tasks, xbt_dynar_length(globals->tasks) - 1), mailbox);
xbt_dynar_push(globals->irecvs, &c);
log_action(action, MSG_get_clock() - clock);
asynchronous_cleanup();
}
-
static void action_wait(const char *const *action)
{
msg_task_t task = NULL;
msg_comm_t comm;
double clock = MSG_get_clock();
- process_globals_t globals =
- (process_globals_t) MSG_process_get_data(MSG_process_self());
+ process_globals_t globals = (process_globals_t) MSG_process_get_data(MSG_process_self());
- xbt_assert(xbt_dynar_length(globals->irecvs),
- "action wait not preceded by any irecv: %s",
+ xbt_assert(xbt_dynar_length(globals->irecvs), "action wait not preceded by any irecv: %s",
xbt_str_join_array(action, " "));
ACT_DEBUG("Entering %s", NAME);
cond = simcall_cond_init();
processes_arrived_sofar = 0;
}
- ACT_DEBUG("Entering barrier: %s (%d already there)", NAME,
- processes_arrived_sofar);
+ ACT_DEBUG("Entering barrier: %s (%d already there)", NAME, processes_arrived_sofar);
simcall_mutex_lock(mutex);
if (++processes_arrived_sofar == communicator_size) {
const char *process_name;
double clock = MSG_get_clock();
- process_globals_t counters =
- (process_globals_t) MSG_process_get_data(MSG_process_self());
+ process_globals_t counters = (process_globals_t) MSG_process_get_data(MSG_process_self());
- xbt_assert(communicator_size, "Size of Communicator is not defined, "
- "can't use collective operations");
+ xbt_assert(communicator_size, "Size of Communicator is not defined can't use collective operations");
process_name = MSG_process_get_name(MSG_process_self());
MSG_task_execute(comp_task);
MSG_task_destroy(comp_task);
XBT_DEBUG("%s: computed", reduce_identifier);
-
} else {
XBT_DEBUG("%s: %s sends", reduce_identifier, process_name);
sprintf(mailbox, "%s_%s_p0", reduce_identifier, process_name);
XBT_DEBUG("put on %s", mailbox);
- MSG_task_send(MSG_task_create(reduce_identifier, 0, comm_size, NULL),
- mailbox);
+ MSG_task_send(MSG_task_create(reduce_identifier, 0, comm_size, NULL), mailbox);
}
log_action(action, MSG_get_clock() - clock);
const char *process_name;
double clock = MSG_get_clock();
- process_globals_t counters =
- (process_globals_t) MSG_process_get_data(MSG_process_self());
+ process_globals_t counters = (process_globals_t) MSG_process_get_data(MSG_process_self());
- xbt_assert(communicator_size, "Size of Communicator is not defined, "
- "can't use collective operations");
+ xbt_assert(communicator_size, "Size of Communicator is not defined, can't use collective operations");
process_name = MSG_process_get_name(MSG_process_self());
for (i = 1; i < communicator_size; i++) {
sprintf(mailbox, "%s_p0_p%d", bcast_identifier, i);
- comms[i - 1] =
- MSG_task_isend(MSG_task_create(mailbox, 0, comm_size, NULL), mailbox);
+ comms[i - 1] = MSG_task_isend(MSG_task_create(mailbox, 0, comm_size, NULL), mailbox);
}
MSG_comm_waitall(comms, communicator_size - 1, -1);
for (i = 1; i < communicator_size; i++)
MSG_comm_destroy(comms[i - 1]);
xbt_free(comms);
- XBT_DEBUG("%s: all messages sent by %s have been received",
- bcast_identifier, process_name);
-
+ XBT_DEBUG("%s: all messages sent by %s have been received", bcast_identifier, process_name);
} else {
sprintf(mailbox, "%s_p0_%s", bcast_identifier, process_name);
MSG_task_receive(&task, mailbox);
xbt_free(bcast_identifier);
}
-
static void action_sleep(const char *const *action)
{
const char *duration = action[2];
const char *process_name;
double clock = MSG_get_clock();
- process_globals_t counters =
- (process_globals_t) MSG_process_get_data(MSG_process_self());
+ process_globals_t counters = (process_globals_t) MSG_process_get_data(MSG_process_self());
- xbt_assert(communicator_size, "Size of Communicator is not defined, "
- "can't use collective operations");
+ xbt_assert(communicator_size, "Size of Communicator is not defined, can't use collective operations");
process_name = MSG_process_get_name(MSG_process_self());
for (i = 1; i < communicator_size; i++) {
sprintf(mailbox, "%s_p0_p%d", allreduce_identifier, i);
- comms[i - 1] =
- MSG_task_isend(MSG_task_create(mailbox, 0, comm_size, NULL), mailbox);
+ comms[i - 1] = MSG_task_isend(MSG_task_create(mailbox, 0, comm_size, NULL), mailbox);
}
MSG_comm_waitall(comms, communicator_size - 1, -1);
for (i = 1; i < communicator_size; i++)
MSG_comm_destroy(comms[i - 1]);
xbt_free(comms);
- XBT_DEBUG("%s: all messages sent by %s have been received",
- allreduce_identifier, process_name);
-
+ XBT_DEBUG("%s: all messages sent by %s have been received", allreduce_identifier, process_name);
} else {
XBT_DEBUG("%s: %s sends", allreduce_identifier, process_name);
sprintf(mailbox, "%s_%s_p0", allreduce_identifier, process_name);
XBT_DEBUG("put on %s", mailbox);
- MSG_task_send(MSG_task_create(allreduce_identifier, 0, comm_size, NULL),
- mailbox);
+ MSG_task_send(MSG_task_create(allreduce_identifier, 0, comm_size, NULL), mailbox);
sprintf(mailbox, "%s_p0_%s", allreduce_identifier, process_name);
MSG_task_receive(&task, mailbox);
static void action_init(const char *const *action)
{
XBT_DEBUG("Initialize the counters");
- process_globals_t globals =
- (process_globals_t) calloc(1, sizeof(s_process_globals_t));
+ process_globals_t globals = (process_globals_t) calloc(1, sizeof(s_process_globals_t));
globals->isends = xbt_dynar_new(sizeof(msg_comm_t), NULL);
globals->irecvs = xbt_dynar_new(sizeof(msg_comm_t), NULL);
globals->tasks = xbt_dynar_new(sizeof(msg_task_t), NULL);
MSG_process_set_data(MSG_process_self(), globals);
-
}
static void action_finalize(const char *const *action)
{
- process_globals_t globals =
- (process_globals_t) MSG_process_get_data(MSG_process_self());
+ process_globals_t globals = (process_globals_t) MSG_process_get_data(MSG_process_self());
if (globals) {
asynchronous_cleanup();
xbt_dynar_free_container(&(globals->isends));
argv[0],argv[0],argv[0]);
printf("WARNING: THIS BINARY IS KINDA DEPRECATED\n"
- "This example is still relevant if you want to learn about MSG-based trace replay, "
- "but if you want to simulate MPI-like traces, you should use the newer version "
- "that is in the examples/smpi/replay directory instead.\n");
+ "This example is still relevant if you want to learn about MSG-based trace replay, but if you want to simulate "
+ "MPI-like traces, you should use the newer version that is in the examples/smpi/replay directory instead.\n");
- /* Simulation setting */
MSG_create_environment(argv[1]);
-
- /* No need to register functions as in classical MSG programs: the actions get started anyway */
MSG_launch_application(argv[2]);
/* Action registration */
xbt_replay_action_register("sleep", action_sleep);
xbt_replay_action_register("compute", action_compute);
-
/* Actually do the simulation using MSG_action_trace_run */
res = MSG_action_trace_run(argv[3]); // it's ok to pass a NULL argument here
MSG_action_exit();
return res != MSG_OK;
-} /* end_of_main */
+}
