-/* Copyright (c) 2009-2018. 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/msg.h>
-#include <xbt/replay.hpp>
-
-#include <stdio.h> /* snprintf */
-
-XBT_LOG_NEW_DEFAULT_CATEGORY(actions, "Messages specific for this msg example");
-int communicator_size = 0;
-
-static void action_Isend(const char* const* action);
-
-typedef struct {
- int last_Irecv_sender_id;
- int bcast_counter;
- xbt_dynar_t isends; /* of msg_comm_t */
- /* Used to implement irecv+wait */
- xbt_dynar_t irecvs; /* of msg_comm_t */
- xbt_dynar_t tasks; /* of msg_task_t */
-} s_process_globals_t;
-
-typedef s_process_globals_t* process_globals_t;
-
-/* Helper function */
-static double parse_double(const char* string)
-{
- double value;
- char* endptr;
-
- value = strtod(string, &endptr);
- if (*endptr != '\0')
- THROWF(unknown_error, 0, "%s is not a double", string);
- return value;
-}
-
-#define ACT_DEBUG(...) \
- if (XBT_LOG_ISENABLED(actions, xbt_log_priority_verbose)) { \
- char* NAME = xbt_str_join_array(action, " "); \
- XBT_DEBUG(__VA_ARGS__); \
- xbt_free(NAME); \
- } else \
- ((void)0)
-
-static void log_action(const char* const* action, double date)
-{
- if (XBT_LOG_ISENABLED(actions, xbt_log_priority_verbose)) {
- char* name = xbt_str_join_array(action, " ");
- XBT_VERB("%s %f", name, date);
- xbt_free(name);
- }
-}
-
-static void asynchronous_cleanup(void)
-{
- process_globals_t globals = (process_globals_t)MSG_process_get_data(MSG_process_self());
-
- /* Destroy any isend which correspond to completed communications */
- msg_comm_t comm;
- while (1 /*true*/) {
- int pos_found = MSG_comm_testany(globals->isends);
- if (pos_found == -1) /* none remaining */
- break;
- xbt_dynar_remove_at(globals->isends, pos_found, &comm);
- MSG_comm_destroy(comm);
- }
-}
-
-/* My actions */
-static void action_send(const char* const* action)
-{
- char to[250];
- const char* size_str = action[3];
- double size = parse_double(size_str);
- double clock = MSG_get_clock();
-
- snprintf(to, 249, "%s_%s", MSG_process_get_name(MSG_process_self()), action[2]);
-
- ACT_DEBUG("Entering Send: %s (size: %g)", NAME, size);
- if (size < 65536) {
- action_Isend(action);
- } else {
- MSG_task_send(MSG_task_create(to, 0, size, NULL), to);
- }
-
- log_action(action, MSG_get_clock() - clock);
- asynchronous_cleanup();
-}
-
-static void action_Isend(const char* const* action)
-{
- 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());
-
- snprintf(to, 249, "%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);
- xbt_dynar_push(globals->isends, &comm);
-
- XBT_DEBUG("Isend on %s", MSG_process_get_name(MSG_process_self()));
- log_action(action, MSG_get_clock() - clock);
- asynchronous_cleanup();
-}
-
-static void action_recv(const char* const* action)
-{
- char mailbox_name[250];
- msg_task_t task = NULL;
- double clock = MSG_get_clock();
-
- snprintf(mailbox_name, 249, "%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);
- log_action(action, MSG_get_clock() - clock);
-
- if (res == MSG_OK) {
- MSG_task_destroy(task);
- }
- asynchronous_cleanup();
-}
-
-static void action_Irecv(const char* const* action)
-{
- char mailbox[250];
- double clock = MSG_get_clock();
- 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()));
-
- snprintf(mailbox, 249, "%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);
- 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());
-
- 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);
- comm = xbt_dynar_pop_as(globals->irecvs, msg_comm_t);
- MSG_comm_wait(comm, -1);
- task = xbt_dynar_pop_as(globals->tasks, msg_task_t);
- MSG_comm_destroy(comm);
- MSG_task_destroy(task);
-
- log_action(action, MSG_get_clock() - clock);
-}
-
-/* FIXME: that's a poor man's implementation: we should take the message exchanges into account */
-static void action_barrier(const char* const* action)
-{
- static msg_bar_t barrier = NULL;
- static int processes_arrived_sofar = 0;
-
- if (barrier == NULL) { // first arriving on the barrier
- msg_bar_t newbar = MSG_barrier_init(communicator_size); // This is a simcall, unscheduling the current process
- if (barrier == NULL) // Still null, commit our new value
- barrier = newbar;
- else // some other process commited a new barrier before me, so dismiss mine
- MSG_barrier_destroy(newbar);
- }
-
- processes_arrived_sofar++;
- MSG_barrier_wait(barrier);
-
- ACT_DEBUG("Exiting barrier: %s", NAME);
-
- processes_arrived_sofar--;
- if (processes_arrived_sofar <= 0) {
- MSG_barrier_destroy(barrier);
- barrier = NULL;
- }
-}
-
-static void action_bcast(const char* const* action)
-{
- char mailbox[80];
- double comm_size = parse_double(action[2]);
- msg_task_t task = NULL;
- double clock = MSG_get_clock();
-
- 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");
-
- const char* process_name = MSG_process_get_name(MSG_process_self());
-
- char* bcast_identifier = bprintf("bcast_%d", counters->bcast_counter);
- counters->bcast_counter++;
-
- if (!strcmp(process_name, "p0")) {
- XBT_DEBUG("%s: %s is the Root", bcast_identifier, process_name);
-
- msg_comm_t* comms = xbt_new0(msg_comm_t, communicator_size - 1);
-
- for (int i = 1; i < communicator_size; i++) {
- snprintf(mailbox, 79, "%s_p0_p%d", bcast_identifier, i);
- comms[i - 1] = MSG_task_isend(MSG_task_create(mailbox, 0, comm_size, NULL), mailbox);
- }
- MSG_comm_waitall(comms, communicator_size - 1, -1);
- for (int 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);
- } else {
- snprintf(mailbox, 79, "%s_p0_%s", bcast_identifier, process_name);
- MSG_task_receive(&task, mailbox);
- MSG_task_destroy(task);
- XBT_DEBUG("%s: %s has received", bcast_identifier, process_name);
- }
-
- log_action(action, MSG_get_clock() - clock);
- xbt_free(bcast_identifier);
-}
-
-static void action_comm_size(const char* const* action)
-{
- const char* size = action[2];
- double clock = MSG_get_clock();
-
- communicator_size = parse_double(size);
- log_action(action, MSG_get_clock() - clock);
-}
-
-static void action_compute(const char* const* action)
-{
- const char* amount = action[2];
- msg_task_t task = MSG_task_create("task", parse_double(amount), 0, NULL);
- double clock = MSG_get_clock();
-
- ACT_DEBUG("Entering %s", NAME);
- MSG_task_execute(task);
- MSG_task_destroy(task);
- log_action(action, MSG_get_clock() - clock);
-}
-
-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));
- 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());
- if (globals) {
- asynchronous_cleanup();
- xbt_dynar_free_container(&(globals->isends));
- xbt_dynar_free_container(&(globals->irecvs));
- xbt_dynar_free_container(&(globals->tasks));
- xbt_free(globals);
- }
-}
-
-int main(int argc, char* argv[])
-{
- /* Check the given arguments */
- MSG_init(&argc, argv);
- /* Explicit initialization of the action module is required now*/
- MSG_action_init();
-
- xbt_assert(argc > 2, "Usage: %s platform_file deployment_file [action_files]\n"
- "\t# if all actions are in the same file\n"
- "\tExample: %s msg_platform.xml msg_deployment.xml actions\n"
- "\t# if actions are in separate files, specified in deployment\n"
- "\tExample: %s msg_platform.xml msg_deployment.xml ",
- argv[0], argv[0], argv[0]);
-
- MSG_create_environment(argv[1]);
- MSG_launch_application(argv[2]);
-
- /* Action registration */
- xbt_replay_action_register("init", action_init);
- xbt_replay_action_register("finalize", action_finalize);
- xbt_replay_action_register("comm_size", action_comm_size);
- xbt_replay_action_register("send", action_send);
- xbt_replay_action_register("Isend", action_Isend);
- xbt_replay_action_register("recv", action_recv);
- xbt_replay_action_register("Irecv", action_Irecv);
- xbt_replay_action_register("wait", action_wait);
- xbt_replay_action_register("barrier", action_barrier);
- xbt_replay_action_register("bcast", action_bcast);
- xbt_replay_action_register("compute", action_compute);
-
- /* Actually do the simulation using MSG_action_trace_run */
- msg_error_t res = MSG_action_trace_run(argv[3]); // it's ok to pass a NULL argument here
-
- XBT_INFO("Simulation time %g", MSG_get_clock());
-
- MSG_action_exit(); /* Explicit finalization of the action module */
-
- return res != MSG_OK;
-}
