-/* $Id$ */
-
-/* Copyright (c) 2009. The SimGrid team. All rights reserved. */
+/* Copyright (c) 2009, 2010. 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 <stdio.h>
-#include "msg/msg.h" /* Yeah! If you want to use msg, you need to include msg/msg.h */
-#include "xbt.h" /* calloc, printf */
+#include <stdlib.h>
+#include "msg/msg.h" /* Yeah! If you want to use msg, you need to include msg/msg.h */
+#include "simix/simix.h" /* semaphores for the barrier */
+#include "xbt.h" /* calloc, printf */
+#include "instr/instr_private.h"
+
+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 m_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;
+}
+
+static int get_rank (const char *process_name)
+{
+ return atoi(&(process_name[1]));
+}
-XBT_LOG_NEW_DEFAULT_CATEGORY(msg_test,"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());
+
+ /* 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 send(xbt_dynar_t action) {
- INFO1("Send: %s",xbt_str_join(action," "));
+static void action_send(const char *const *action)
+{
+ char *name = NULL;
+ 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 */
+
+ sprintf(to, "%s_%s", MSG_process_get_name(MSG_process_self()),action[2]);
+
+ if (XBT_LOG_ISENABLED(actions, xbt_log_priority_verbose))
+ name = xbt_str_join_array(action, " ");
+
+#ifdef HAVE_TRACING
+ int rank = get_rank(MSG_process_get_name(MSG_process_self()));
+ int dst_traced = get_rank(action[2]);
+ TRACE_smpi_ptp_in(rank, rank, dst_traced, "send");
+ TRACE_smpi_send(rank, rank, dst_traced);
+#endif
+
+ XBT_DEBUG("Entering Send: %s (size: %lg)", name, size);
+ if (size<65536) {
+ action_Isend(action);
+ } else {
+ MSG_task_send(MSG_task_create(name, 0, size, NULL), to);
+ }
+
+ XBT_VERB("%s %f", name, MSG_get_clock() - clock);
+
+ if (XBT_LOG_ISENABLED(actions, xbt_log_priority_verbose))
+ free(name);
+
+#ifdef HAVE_TRACING
+ TRACE_smpi_ptp_out(rank, rank, dst_traced, "send");
+#endif
+
+ asynchronous_cleanup();
}
-static void recv(xbt_dynar_t action) {
- INFO1("Recv: %s",xbt_str_join(action," "));
+
+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()));
+ XBT_VERB("%s %f", xbt_str_join_array(action, " "), MSG_get_clock() - clock);
+
+ asynchronous_cleanup();
}
-static void sleep(xbt_dynar_t action) {
- INFO1("Recv: %s",xbt_str_join(action," "));
+
+
+static void action_recv(const char *const *action)
+{
+ char *name = NULL;
+ char mailbox_name[250];
+ m_task_t task = NULL;
+ double clock = MSG_get_clock();
+
+ sprintf(mailbox_name, "%s_%s", action[2],
+ MSG_process_get_name(MSG_process_self()));
+
+ if (XBT_LOG_ISENABLED(actions, xbt_log_priority_verbose))
+ name = xbt_str_join_array(action, " ");
+
+#ifdef HAVE_TRACING
+ int rank = get_rank(MSG_process_get_name(MSG_process_self()));
+ int src_traced = get_rank(action[2]);
+ TRACE_smpi_ptp_in(rank, src_traced, rank, "recv");
+#endif
+
+ XBT_DEBUG("Receiving: %s", name);
+ MSG_task_receive(&task, mailbox_name);
+ // MSG_task_receive(&task, MSG_process_get_name(MSG_process_self()));
+ XBT_VERB("%s %f", name, MSG_get_clock() - clock);
+ MSG_task_destroy(task);
+
+ if (XBT_LOG_ISENABLED(actions, xbt_log_priority_verbose))
+ free(name);
+#ifdef HAVE_TRACING
+ TRACE_smpi_ptp_out(rank, src_traced, rank, "recv");
+ TRACE_smpi_recv(rank, src_traced, rank);
+#endif
+
+ asynchronous_cleanup();
}
-static void compute(xbt_dynar_t action) {
- INFO1("compute: %s",xbt_str_join(action," "));
+
+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()));
+#ifdef HAVE_TRACING
+ int rank = get_rank(MSG_process_get_name(MSG_process_self()));
+ int src_traced = get_rank(action[2]);
+ globals->last_Irecv_sender_id = src_traced;
+ MSG_process_set_data(MSG_process_self(), (void *) globals);
+
+ TRACE_smpi_ptp_in(rank, src_traced, rank, "Irecv");
+#endif
+
+ sprintf(mailbox, "%s_%s", action[2],
+ MSG_process_get_name(MSG_process_self()));
+ m_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);
+
+ XBT_VERB("%s %f", xbt_str_join_array(action, " "), MSG_get_clock() - clock);
+
+#ifdef HAVE_TRACING
+ TRACE_smpi_ptp_out(rank, src_traced, rank, "Irecv");
+#endif
+
+ asynchronous_cleanup();
}
-/** Main function */
-int main(int argc, char *argv[]){
- MSG_error_t res = MSG_OK;
-
- /* Check the given arguments */
- MSG_global_init(&argc,argv);
- if (argc < 4) {
- printf ("Usage: %s platform_file deployment_file action_files\n",argv[0]);
- printf ("example: %s msg_platform.xml msg_deployment.xml actions\n",argv[0]);
- exit(1);
+
+static void action_wait(const char *const *action)
+{
+ char *name = NULL;
+ m_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," "));
+
+ if (XBT_LOG_ISENABLED(actions, xbt_log_priority_verbose))
+ name = xbt_str_join_array(action, " ");
+#ifdef HAVE_TRACING
+ process_globals_t counters = (process_globals_t) MSG_process_get_data(MSG_process_self());
+ int src_traced = counters->last_Irecv_sender_id;
+ int rank = get_rank(MSG_process_get_name(MSG_process_self()));
+ TRACE_smpi_ptp_in(rank, src_traced, rank, "wait");
+#endif
+
+ XBT_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,m_task_t);
+ MSG_comm_destroy(comm);
+ MSG_task_destroy(task);
+
+ XBT_VERB("%s %f", name, MSG_get_clock() - clock);
+ if (XBT_LOG_ISENABLED(actions, xbt_log_priority_verbose))
+ free(name);
+#ifdef HAVE_TRACING
+ TRACE_smpi_ptp_out(rank, src_traced, rank, "wait");
+ TRACE_smpi_recv(rank, src_traced, rank);
+#endif
+
+}
+
+/* FIXME: that's a poor man's implementation: we should take the message exchanges into account */
+static void action_barrier(const char *const *action)
+{
+ char *name = NULL;
+ static smx_mutex_t mutex = NULL;
+ static smx_cond_t cond = NULL;
+ static int processes_arrived_sofar=0;
+
+ if (XBT_LOG_ISENABLED(actions, xbt_log_priority_verbose))
+ name = xbt_str_join_array(action, " ");
+
+ if (mutex == NULL) { // first arriving on the barrier
+ mutex = SIMIX_req_mutex_init();
+ cond = SIMIX_req_cond_init();
+ processes_arrived_sofar=0;
+ }
+ XBT_DEBUG("Entering barrier: %s (%d already there)", name,processes_arrived_sofar);
+
+ SIMIX_req_mutex_lock(mutex);
+ if (++processes_arrived_sofar == communicator_size) {
+ SIMIX_req_cond_broadcast(cond);
+ SIMIX_req_mutex_unlock(mutex);
+ } else {
+ SIMIX_req_cond_wait(cond,mutex);
+ SIMIX_req_mutex_unlock(mutex);
+ }
+
+ XBT_DEBUG("Exiting barrier: %s", name);
+
+ processes_arrived_sofar--;
+ if (!processes_arrived_sofar) {
+ SIMIX_req_cond_destroy(cond);
+ SIMIX_req_mutex_destroy(mutex);
+ mutex=NULL;
+ }
+
+ if (XBT_LOG_ISENABLED(actions, xbt_log_priority_verbose))
+ free(name);
+
+}
+
+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]);
+ m_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);
+ m_task_t *tasks = xbt_new0(m_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]);
+ }
+ 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);
+ }
+
+ XBT_VERB("%s %f", xbt_str_join_array(action, " "), MSG_get_clock() - clock);
+ 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]);
+ m_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]);
+ 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);
}
- /* Simulation setting */
- MSG_create_environment(argv[1]);
+ XBT_VERB("%s %f", xbt_str_join_array(action, " "), MSG_get_clock() - clock);
+ free(bcast_identifier);
+}
+
+
+static void action_sleep(const char *const *action)
+{
+ char *name = NULL;
+ const char *duration = action[2];
+ double clock = MSG_get_clock();
+
+ if (XBT_LOG_ISENABLED(actions, xbt_log_priority_verbose))
+ name = xbt_str_join_array(action, " ");
+
+ XBT_DEBUG("Entering %s", name);
+ MSG_process_sleep(parse_double(duration));
+ XBT_VERB("%s %f ", name, MSG_get_clock() - clock);
+
+ if (XBT_LOG_ISENABLED(actions, xbt_log_priority_verbose))
+ free(name);
+}
+
+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]);
+ m_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);
+ m_task_t *tasks = xbt_new0(m_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]);
+ }
+ 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]);
+ 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);
+ }
+
+ XBT_VERB("%s %f", xbt_str_join_array(action, " "), MSG_get_clock() - clock);
+ free(allreduce_identifier);
+}
+
+static void action_comm_size(const char *const *action)
+{
+ char *name = NULL;
+ const char *size = action[2];
+ double clock = MSG_get_clock();
+
+ if (XBT_LOG_ISENABLED(actions, xbt_log_priority_verbose))
+ name = xbt_str_join_array(action, " ");
+ communicator_size = parse_double(size);
+ XBT_VERB("%s %f", name, MSG_get_clock() - clock);
+ if (XBT_LOG_ISENABLED(actions, xbt_log_priority_verbose))
+ free(name);
+}
+
+static void action_compute(const char *const *action)
+{
+ char *name = NULL;
+ const char *amout = action[2];
+ m_task_t task = MSG_task_create(name, parse_double(amout), 0, NULL);
+ double clock = MSG_get_clock();
+
+ if (XBT_LOG_ISENABLED(actions, xbt_log_priority_verbose))
+ name = xbt_str_join_array(action, " ");
+ XBT_DEBUG("Entering %s", name);
+ MSG_task_execute(task);
+ MSG_task_destroy(task);
+ XBT_VERB("%s %f", name, MSG_get_clock() - clock);
+ if (XBT_LOG_ISENABLED(actions, xbt_log_priority_verbose))
+ free(name);
+}
+
+static void action_init(const char *const *action)
+{
+#ifdef HAVE_TRACING
+ TRACE_smpi_init(get_rank(MSG_process_get_name(MSG_process_self())));
+#endif
+ 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(m_task_t),NULL);
+ MSG_process_set_data(MSG_process_self(),globals);
+
+}
+
+static void action_finalize(const char *const *action)
+{
+#ifdef HAVE_TRACING
+ TRACE_smpi_finalize(get_rank(MSG_process_get_name(MSG_process_self())));
+#endif
+ process_globals_t globals = (process_globals_t) MSG_process_get_data(MSG_process_self());
+ if (globals){
+ xbt_dynar_free_container(&(globals->isends));
+ xbt_dynar_free_container(&(globals->irecvs));
+ xbt_dynar_free_container(&(globals->tasks));
+ free(globals);
+ }
+}
+
+/** Main function */
+int main(int argc, char *argv[])
+{
+ MSG_error_t res = MSG_OK;
+
+ /* Check the given arguments */
+ MSG_global_init(&argc, argv);
+ if (argc < 3) {
+ printf("Usage: %s platform_file deployment_file [action_files]\n",
+ argv[0]);
+ printf
+ ("example: %s msg_platform.xml msg_deployment.xml actions # if all actions are in the same file\n",
+ argv[0]);
+ printf
+ ("example: %s msg_platform.xml msg_deployment.xml # if actions are in separate files, specified in deployment\n",
+ argv[0]);
+ exit(1);
+ }
+
+ /* 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]);
- /* No need to register functions as in classical MSG programs: the actions get started anyway */
- MSG_launch_application(argv[2]);
+ /* Action registration */
+ MSG_action_register("init", action_init);
+ MSG_action_register("finalize", action_finalize);
+ MSG_action_register("comm_size",action_comm_size);
+ MSG_action_register("send", action_send);
+ MSG_action_register("Isend", action_Isend);
+ MSG_action_register("recv", action_recv);
+ MSG_action_register("Irecv", action_Irecv);
+ MSG_action_register("wait", action_wait);
+ MSG_action_register("barrier", action_barrier);
+ MSG_action_register("bcast", action_bcast);
+ MSG_action_register("reduce", action_reduce);
+ MSG_action_register("allReduce",action_allReduce);
+ MSG_action_register("sleep", action_sleep);
+ MSG_action_register("compute", action_compute);
- /* Action registration */
- MSG_action_register("send", send);
- MSG_action_register("recv", recv);
- MSG_action_register("sleep", sleep);
- MSG_action_register("compute", sleep);
- /* Actually do the simulation using MSG_action_trace_run */
- res = MSG_action_trace_run(argv[3]);
+ /* 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
- INFO1("Simulation time %g",MSG_get_clock());
- MSG_clean();
+ XBT_INFO("Simulation time %g", MSG_get_clock());
+ MSG_clean();
- if(res==MSG_OK)
- return 0;
- else
- return 1;
-} /* end_of_main */
+ if (res == MSG_OK)
+ return 0;
+ else
+ return 1;
+} /* end_of_main */
