X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/a1b47bf02540da1289434b65c633212115f82e29..1fa839b4337bb22d5416eb9f142572378d5ff315:/examples/msg/actions-comm/actions-comm.c diff --git a/examples/msg/actions-comm/actions-comm.c b/examples/msg/actions-comm/actions-comm.c deleted file mode 100644 index 2c487dbede..0000000000 --- a/examples/msg/actions-comm/actions-comm.c +++ /dev/null @@ -1,311 +0,0 @@ -/* Copyright (c) 2009-2017. 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 -#include - -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; -}