X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/c20b20602a3b551b39aa7910874cca47c45430ab..65fb54463298816c1902c1a9167bf82d6bdb1339:/examples/msg/actions/mpi_actions.c diff --git a/examples/msg/actions/mpi_actions.c b/examples/msg/actions/mpi_actions.c deleted file mode 100644 index df86b80081..0000000000 --- a/examples/msg/actions/mpi_actions.c +++ /dev/null @@ -1,479 +0,0 @@ -/* Copyright (c) 2009-2015. 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 "simgrid/simix.h" /* semaphores for the barrier */ -#include - -/** @addtogroup MSG_examples - * - * @section MSG_ex_actions Trace driven simulations - * - * The actions/actions.c 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. - * - * 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"); -int communicator_size = 0; - -static void action_Isend(const char *const *action); - -typedef struct { - int last_Irecv_sender_id; - int bcast_counter; - int reduce_counter; - int allReduce_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, *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 */ - int found; - msg_comm_t comm; - while ((found = MSG_comm_testany(globals->isends)) != -1) { - xbt_dynar_remove_at(globals->isends, 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(); - - sprintf(to, "%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()); - - 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); - 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(); - - 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); - 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())); - - 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); - 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 smx_mutex_t mutex = NULL; - static smx_cond_t cond = NULL; - static int processes_arrived_sofar = 0; - - if (mutex == NULL) { // first arriving on the barrier - mutex = simcall_mutex_init(); - cond = simcall_cond_init(); - processes_arrived_sofar = 0; - } - ACT_DEBUG("Entering barrier: %s (%d already there)", NAME, processes_arrived_sofar); - - simcall_mutex_lock(mutex); - if (++processes_arrived_sofar == communicator_size) { - simcall_cond_broadcast(cond); - simcall_mutex_unlock(mutex); - } else { - simcall_cond_wait(cond, mutex); - simcall_mutex_unlock(mutex); - } - - ACT_DEBUG("Exiting barrier: %s", NAME); - - processes_arrived_sofar--; - if (!processes_arrived_sofar) { - SIMIX_cond_destroy(cond); - SIMIX_mutex_destroy(mutex); - mutex = NULL; - } -} - -static void action_reduce(const char *const *action) -{ - int i; - char *reduce_identifier; - char mailbox[80]; - double comm_size = parse_double(action[2]); - double comp_size = parse_double(action[3]); - msg_task_t comp_task = NULL; - const char *process_name; - 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"); - - process_name = MSG_process_get_name(MSG_process_self()); - - reduce_identifier = bprintf("reduce_%d", counters->reduce_counter++); - - if (!strcmp(process_name, "p0")) { - XBT_DEBUG("%s: %s is the Root", reduce_identifier, process_name); - - msg_comm_t *comms = xbt_new0(msg_comm_t, communicator_size - 1); - msg_task_t *tasks = xbt_new0(msg_task_t, communicator_size - 1); - for (i = 1; i < communicator_size; i++) { - sprintf(mailbox, "%s_p%d_p0", reduce_identifier, i); - comms[i - 1] = MSG_task_irecv(&(tasks[i - 1]), mailbox); - } - MSG_comm_waitall(comms, communicator_size - 1, -1); - for (i = 1; i < communicator_size; i++) { - MSG_comm_destroy(comms[i - 1]); - MSG_task_destroy(tasks[i - 1]); - } - xbt_free(comms); - xbt_free(tasks); - - comp_task = MSG_task_create("reduce_comp", comp_size, 0, NULL); - XBT_DEBUG("%s: computing 'reduce_comp'", reduce_identifier); - 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); - } - - log_action(action, MSG_get_clock() - clock); - xbt_free(reduce_identifier); -} - -static void action_bcast(const char *const *action) -{ - int i; - char *bcast_identifier; - char mailbox[80]; - double comm_size = parse_double(action[2]); - msg_task_t task = NULL; - const char *process_name; - 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"); - - process_name = MSG_process_get_name(MSG_process_self()); - - bcast_identifier = bprintf("bcast_%d", 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 (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); - } - 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); - } else { - sprintf(mailbox, "%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_sleep(const char *const *action) -{ - const char *duration = action[2]; - double clock = MSG_get_clock(); - - ACT_DEBUG("Entering %s", NAME); - MSG_process_sleep(parse_double(duration)); - log_action(action, MSG_get_clock() - clock); -} - -static void action_allReduce(const char *const *action) -{ - int i; - char *allreduce_identifier; - char mailbox[80]; - double comm_size = parse_double(action[2]); - double comp_size = parse_double(action[3]); - msg_task_t task = NULL, comp_task = NULL; - const char *process_name; - 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"); - - process_name = MSG_process_get_name(MSG_process_self()); - - allreduce_identifier = bprintf("allReduce_%d", counters->allReduce_counter++); - - if (!strcmp(process_name, "p0")) { - XBT_DEBUG("%s: %s is the Root", allreduce_identifier, process_name); - - msg_comm_t *comms = xbt_new0(msg_comm_t, communicator_size - 1); - msg_task_t *tasks = xbt_new0(msg_task_t, communicator_size - 1); - for (i = 1; i < communicator_size; i++) { - sprintf(mailbox, "%s_p%d_p0", allreduce_identifier, i); - comms[i - 1] = MSG_task_irecv(&(tasks[i - 1]), mailbox); - } - MSG_comm_waitall(comms, communicator_size - 1, -1); - for (i = 1; i < communicator_size; i++) { - MSG_comm_destroy(comms[i - 1]); - MSG_task_destroy(tasks[i - 1]); - } - xbt_free(tasks); - - comp_task = MSG_task_create("allReduce_comp", comp_size, 0, NULL); - XBT_DEBUG("%s: computing 'reduce_comp'", allreduce_identifier); - MSG_task_execute(comp_task); - MSG_task_destroy(comp_task); - XBT_DEBUG("%s: computed", allreduce_identifier); - - 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); - } - 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); - } 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); - - sprintf(mailbox, "%s_p0_%s", allreduce_identifier, process_name); - MSG_task_receive(&task, mailbox); - MSG_task_destroy(task); - XBT_DEBUG("%s: %s has received", allreduce_identifier, process_name); - } - - log_action(action, MSG_get_clock() - clock); - xbt_free(allreduce_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); - } -} - -/** Main function */ -int main(int argc, char *argv[]) -{ - msg_error_t res = MSG_OK; - - /* 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]); - - 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"); - - 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("reduce", action_reduce); - xbt_replay_action_register("allReduce", action_allReduce); - 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 - - XBT_INFO("Simulation time %g", MSG_get_clock()); - - /* Explicit finalization of the action module is required now*/ - MSG_action_exit(); - - return res != MSG_OK; -}