* 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 "xbt.h" /* calloc, printf */
+#include "simgrid_config.h" /* getline */
+
+XBT_LOG_NEW_DEFAULT_CATEGORY(actions,
+ "Messages specific for this msg example");
+int communicator_size=0;
+
+typedef struct coll_ctr_t{
+ int bcast_counter;
+ int reduce_counter;
+ int allReduce_counter;
+} *coll_ctr;
+
+/* Helper function */
+static double parse_double(const char *string) {
+ double value;
+ char *endptr;
+
+ value=strtod(string, &endptr);
+ if (*endptr != '\0')
+ THROW1(unknown_error, 0, "%s is not a double", string);
+ return value;
+}
-XBT_LOG_NEW_DEFAULT_CATEGORY(msg_test,"Messages specific for this msg example");
/* My actions */
-static void send(xbt_dynar_t action) {
- char *name=xbt_str_join(action," ");
- char *to = xbt_dynar_get_as(action,2,char*);
- char *size=xbt_dynar_get_as(action,3,char*);
- INFO1("Send: %s",name);
- MSG_task_send(MSG_task_create(name, 0, atoi(size), NULL), to);
- INFO1("Sent %s",name);
+static void send(xbt_dynar_t action)
+{
+ char *name = NULL;
+ char to[250];
+ char *size = xbt_dynar_get_as(action, 3, char *);
+ double clock = MSG_get_clock();
+ sprintf (to,"%s_%s", MSG_process_get_name(MSG_process_self()),
+ xbt_dynar_get_as(action, 2, char *));
+ // char *to = xbt_dynar_get_as(action, 2, char *);
+
+ if (XBT_LOG_ISENABLED(actions,xbt_log_priority_debug))
+ name = xbt_str_join(action, " ");
+
+ DEBUG2("Entering Send: %s (size: %lg)", name, parse_double(size));
+ MSG_task_send(MSG_task_create(name, 0, parse_double(size), NULL), to);
+ DEBUG2("%s %f", name, MSG_get_clock()-clock);
+
+ if (XBT_LOG_ISENABLED(actions,xbt_log_priority_debug))
+ free(name);
+}
+
+
+static int spawned_send(int argc, char *argv[])
+{
+ DEBUG3("%s: Sending %s on %s", MSG_process_get_name(MSG_process_self()),
+ argv[1],argv[0]);
+ MSG_task_send(MSG_task_create(argv[0], 0, parse_double(argv[1]), NULL),
+ argv[0]);
+ return 0;
+}
+
+static void Isend(xbt_dynar_t action)
+{
+ char spawn_name[80];
+ char to[250];
+ // char *to = xbt_dynar_get_as(action, 2, char *);
+ char *size = xbt_dynar_get_as(action, 3, char *);
+ char **myargv;
+ m_process_t comm_helper;
+ double clock = MSG_get_clock();
+ DEBUG1("Isend on %s: spawn process ",
+ MSG_process_get_name(MSG_process_self()));
+
+ sprintf (to,"%s_%s", MSG_process_get_name(MSG_process_self()),
+ xbt_dynar_get_as(action, 2, char *));
+ myargv = (char**) calloc (3, sizeof (char*));
+
+ myargv[0] = xbt_strdup(to);
+ myargv[1] = xbt_strdup(size);
+ myargv[2] = NULL;
+
+ // sprintf(spawn_name,"%s_wait",MSG_process_get_name(MSG_process_self()));
+ sprintf(spawn_name,"%s_wait",to);
+ comm_helper =
+ MSG_process_create_with_arguments(spawn_name, spawned_send,
+ NULL, MSG_host_self(), 2, myargv);
+ DEBUG2("%s %f",xbt_str_join(action, " "), MSG_get_clock()-clock);
+}
+
+
+static void recv(xbt_dynar_t action)
+{
+ char *name = NULL;
+ char mailbox_name[250];
+ m_task_t task = NULL;
+ double clock = MSG_get_clock();
+ //FIXME: argument of action ignored so far; semantic not clear
+ //char *from=xbt_dynar_get_as(action,2,char*);
+ sprintf (mailbox_name,"%s_%s", xbt_dynar_get_as(action, 2, char *),
+ MSG_process_get_name(MSG_process_self()));
+
+ if (XBT_LOG_ISENABLED(actions,xbt_log_priority_debug))
+ name = xbt_str_join(action, " ");
+
+ DEBUG1("Receiving: %s", name);
+ MSG_task_receive(&task, mailbox_name);
+ // MSG_task_receive(&task, MSG_process_get_name(MSG_process_self()));
+ DEBUG2("%s %f", name, MSG_get_clock()-clock);
+ MSG_task_destroy(task);
+
+ if (XBT_LOG_ISENABLED(actions,xbt_log_priority_debug))
+ free(name);
+}
+
+static int spawned_recv(int argc, char *argv[])
+{
+ m_task_t task = NULL;
+ DEBUG1("Receiving on %s", argv[0]);
+ MSG_task_receive(&task, argv[0]);
+ DEBUG1("Received %s", MSG_task_get_name(task));
+ DEBUG1("waiter on %s", MSG_process_get_name(MSG_process_self()));
+ MSG_task_send(MSG_task_create("waiter",0,0,NULL),
+ MSG_process_get_name(MSG_process_self()));
+
+ MSG_task_destroy(task);
+ return 0;
+}
+
+
+static void Irecv(xbt_dynar_t action)
+{
+ char *name;
+ m_process_t comm_helper;
+ char mailbox_name[250];
+ char **myargv;
+ double clock = MSG_get_clock();
+ DEBUG1("Irecv on %s: spawn process ",
+ MSG_process_get_name(MSG_process_self()));
+
+ sprintf (mailbox_name,"%s_%s", xbt_dynar_get_as(action, 2, char *),
+ MSG_process_get_name(MSG_process_self()));
+ name = bprintf("%s_wait",MSG_process_get_name(MSG_process_self()));
+ myargv = (char**) calloc (2, sizeof (char*));
+
+ myargv[0] = xbt_strdup(mailbox_name);
+ myargv[1] = NULL;
+ comm_helper = MSG_process_create_with_arguments(name,spawned_recv,
+ NULL, MSG_host_self(),
+ 1, myargv);
+
+ DEBUG2("%s %f", xbt_str_join(action, " "),
+ MSG_get_clock()-clock);
+
+ free(name);
+}
+
+
+static void wait_action(xbt_dynar_t action)
+{
+ char *name = NULL;
+ char task_name[80];
+ m_task_t task = NULL;
+ double clock = MSG_get_clock();
+
+ if (XBT_LOG_ISENABLED(actions,xbt_log_priority_debug))
+ name = xbt_str_join(action, " ");
+
+ DEBUG1("Entering %s", name);
+ sprintf(task_name,"%s_wait",MSG_process_get_name(MSG_process_self()));
+ DEBUG1("wait: %s", task_name);
+ MSG_task_receive(&task,task_name);
+ MSG_task_destroy(task);
+ DEBUG2("%s %f", name, MSG_get_clock()-clock);
+ if (XBT_LOG_ISENABLED(actions,xbt_log_priority_debug))
+ free(name);
+}
+
+/* FIXME: that's a poor man's implementation: we should take the message exchanges into account */
+smx_sem_t barrier_semaphore=NULL;
+static void barrier (xbt_dynar_t action)
+{
+ char *name = NULL;
+
+ if (XBT_LOG_ISENABLED(actions,xbt_log_priority_debug))
+ name = xbt_str_join(action, " ");
+
+ DEBUG1("Entering barrier: %s", name);
+ if (barrier_semaphore == NULL) // first arriving on the barrier
+ barrier_semaphore = SIMIX_sem_init(0);
+
+ if (SIMIX_sem_get_capacity(barrier_semaphore)==-communicator_size +1) { // last arriving
+ SIMIX_sem_release_forever(barrier_semaphore);
+ SIMIX_sem_destroy(barrier_semaphore);
+ barrier_semaphore = NULL;
+ } else { // not last
+ SIMIX_sem_acquire(barrier_semaphore);
+ }
+
+ DEBUG1("Exiting barrier: %s", name);
+
+ if (XBT_LOG_ISENABLED(actions,xbt_log_priority_debug))
+ free(name);
+
+}
+
+static void reduce(xbt_dynar_t action)
+{
+ int i;
+ char *name;
+ char task_name[80];
+ char spawn_name[80];
+ char **myargv;
+ char *comm_size = xbt_dynar_get_as(action, 2, char *);
+ char *comp_size = xbt_dynar_get_as(action, 3, char *);
+ m_process_t comm_helper=NULL;
+ m_task_t task=NULL, comp_task=NULL;
+ const char* process_name;
+ double clock = MSG_get_clock();
+
+ coll_ctr counters = (coll_ctr) MSG_process_get_data(MSG_process_self());
+
+ xbt_assert0(communicator_size, "Size of Communicator is not defined"
+ ", can't use collective operations");
+
+ process_name = MSG_process_get_name(MSG_process_self());
+
+ if (!counters){
+ DEBUG0("Initialize the counters");
+ counters = (coll_ctr) calloc (1, sizeof(struct coll_ctr_t));
+ }
+
+ name = bprintf("reduce_%d", counters->reduce_counter++);
+
+ if (!strcmp(process_name, "p0")){
+ DEBUG2("%s: %s is the Root",name, process_name);
+ for(i=1;i<communicator_size;i++){
+ sprintf(spawn_name,"%s_p%d_%s", name, i,
+ MSG_process_get_name(MSG_process_self()));
+ sprintf(task_name,"%s_wait", spawn_name);
+ myargv = (char**) calloc (2, sizeof (char*));
+
+ myargv[0] = xbt_strdup(spawn_name);
+ myargv[1] = NULL;
+
+ comm_helper =
+ MSG_process_create_with_arguments(task_name, spawned_recv,
+ NULL, MSG_host_self(),
+ 1, myargv);
+ }
+
+ for(i=1;i<communicator_size;i++){
+ sprintf(task_name,"%s_p%d_p0_wait", name, i);
+ MSG_task_receive(&task,task_name);
+ MSG_task_destroy(task);
+ task=NULL;
+ }
+
+ comp_task =
+ MSG_task_create("reduce_comp", parse_double(comp_size), 0, NULL);
+ DEBUG1("%s: computing 'reduce_comp'", name);
+ MSG_task_execute(comp_task);
+ MSG_task_destroy(comp_task);
+ DEBUG1("%s: computed", name);
+ } else {
+ DEBUG2("%s: %s sends", name, process_name);
+ sprintf(task_name,"%s_%s_p0", name, process_name);
+ DEBUG1("put on %s", task_name);
+ MSG_task_send(MSG_task_create(name, 0, parse_double(comm_size), NULL),
+ task_name);
+ }
+
+ MSG_process_set_data(MSG_process_self(), (void*)counters);
+ DEBUG2("%s %f", xbt_str_join(action, " "), MSG_get_clock()-clock);
+ free(name);
}
-static void recv(xbt_dynar_t action) {
- m_task_t task = NULL;
- INFO1("Receiving: %s",xbt_str_join(action," "));
- //FIXME: argument of action ignored so far; semantic not clear
- //char *from=xbt_dynar_get_as(action,2,char*);
- MSG_task_receive(&task,MSG_process_get_name(MSG_process_self()));
- INFO1("Received %s",MSG_task_get_name(task));
- MSG_task_destroy(task);
+
+static void bcast (xbt_dynar_t action)
+{
+ int i;
+ char *name;
+ const char* process_name;
+ char task_name[80];
+ char spawn_name[80];
+ char **myargv;
+ m_process_t comm_helper=NULL;
+ m_task_t task=NULL;
+ char *size = xbt_dynar_get_as(action, 2, char *);
+ coll_ctr counters = (coll_ctr) MSG_process_get_data(MSG_process_self());
+ double clock = MSG_get_clock();
+
+ xbt_assert0(communicator_size, "Size of Communicator is not defined"
+ ", can't use collective operations");
+
+
+ process_name = MSG_process_get_name(MSG_process_self());
+ if (!counters){
+ DEBUG0("Initialize the counters");
+ counters = (coll_ctr) calloc (1, sizeof(struct coll_ctr_t));
+ }
+
+ name = bprintf("bcast_%d", counters->bcast_counter++);
+ if (!strcmp(process_name, "p0")){
+ DEBUG2("%s: %s is the Root",name, process_name);
+
+ for(i=1;i<communicator_size;i++){
+ myargv = (char**) calloc (3, sizeof (char*));
+ myargv[0] = xbt_strdup(name);
+ myargv[1] = xbt_strdup(size);
+ myargv[2] = NULL;
+
+ sprintf(spawn_name,"%s_%d", myargv[0], i);
+ comm_helper =
+ MSG_process_create_with_arguments(spawn_name, spawned_send,
+ NULL, MSG_host_self(), 2, myargv);
+ }
+
+ for(i=1;i<communicator_size;i++){
+ sprintf(task_name,"p%d_wait", i);
+ DEBUG1("get on %s", task_name);
+ MSG_task_receive(&task,task_name);
+ MSG_task_destroy(task);
+ task=NULL;
+ }
+ DEBUG2("%s: all messages sent by %s have been received",
+ name, process_name);
+ } else {
+ DEBUG2("%s: %s receives", name, process_name);
+ MSG_task_receive(&task, name);
+ MSG_task_destroy(task);
+ DEBUG2("%s: %s has received", name,process_name);
+ sprintf(task_name,"%s_wait", process_name);
+ DEBUG1("put on %s", task_name);
+ MSG_task_send(MSG_task_create("waiter",0,0,NULL),task_name);
+ }
+
+ MSG_process_set_data(MSG_process_self(), (void*)counters);
+ DEBUG2("%s %f", xbt_str_join(action, " "), MSG_get_clock()-clock);
+ free(name);
}
-static void sleep(xbt_dynar_t action) {
- char *duration=xbt_dynar_get_as(action,2,char*);
- INFO1("sleep: %s",xbt_str_join(action," "));
- MSG_process_sleep(atoi(duration));
- INFO1("sleept: %s",xbt_str_join(action," "));
+
+
+static void sleep(xbt_dynar_t action)
+{
+ char *name = NULL;
+ char *duration = xbt_dynar_get_as(action, 2, char *);
+ double clock = MSG_get_clock();
+
+ if (XBT_LOG_ISENABLED(actions,xbt_log_priority_debug))
+ name = xbt_str_join(action, " ");
+
+ DEBUG1("Entering %s", name);
+ MSG_process_sleep(parse_double(duration));
+ DEBUG2("%s %f ", name, MSG_get_clock()-clock);
+
+ if (XBT_LOG_ISENABLED(actions,xbt_log_priority_debug))
+ free(name);
}
-static void compute(xbt_dynar_t action) {
- char *name=xbt_str_join(action," ");
- char *amout=xbt_dynar_get_as(action,2,char*);
- m_task_t task = MSG_task_create(name, atoi(amout), 0, NULL);
- INFO1("computing: %s",name);
- MSG_task_execute(task);
- MSG_task_destroy(task);
- INFO1("computed: %s",name);
+
+static void allReduce(xbt_dynar_t action)
+{
+ int i;
+ char *name;
+ char task_name[80];
+ char spawn_name[80];
+ char **myargv;
+ char *comm_size = xbt_dynar_get_as(action, 2, char *);
+ char *comp_size = xbt_dynar_get_as(action, 3, char *);
+ m_process_t comm_helper=NULL;
+ m_task_t task=NULL, comp_task=NULL;
+ const char* process_name;
+ double clock = MSG_get_clock();
+
+ coll_ctr counters = (coll_ctr) MSG_process_get_data(MSG_process_self());
+
+ xbt_assert0(communicator_size, "Size of Communicator is not defined"
+ ", can't use collective operations");
+
+ process_name = MSG_process_get_name(MSG_process_self());
+
+ if (!counters){
+ DEBUG0("Initialize the counters");
+ counters = (coll_ctr) calloc (1, sizeof(struct coll_ctr_t));
+ }
+
+ name = bprintf("allReduce_%d", counters->allReduce_counter++);
+
+ if (!strcmp(process_name, "p0")){
+ DEBUG2("%s: %s is the Root",name, process_name);
+ for(i=1;i<communicator_size;i++){
+ sprintf(spawn_name,"%s_p%d_%s", name, i,
+ MSG_process_get_name(MSG_process_self()));
+ sprintf(task_name,"%s_wait", spawn_name);
+ myargv = (char**) calloc (2, sizeof (char*));
+
+ myargv[0] = xbt_strdup(spawn_name);
+ myargv[1] = NULL;
+
+ comm_helper =
+ MSG_process_create_with_arguments(task_name, spawned_recv,
+ NULL, MSG_host_self(),
+ 1, myargv);
+ }
+
+ for(i=1;i<communicator_size;i++){
+ sprintf(task_name,"%s_p%d_p0_wait", name, i);
+ MSG_task_receive(&task,task_name);
+ MSG_task_destroy(task);
+ task=NULL;
+ }
+
+ comp_task =
+ MSG_task_create("allReduce_comp", parse_double(comp_size), 0, NULL);
+ DEBUG1("%s: computing 'reduce_comp'", name);
+ MSG_task_execute(comp_task);
+ MSG_task_destroy(comp_task);
+ DEBUG1("%s: computed", name);
+
+ for(i=1;i<communicator_size;i++){
+ myargv = (char**) calloc (3, sizeof (char*));
+ myargv[0] = xbt_strdup(name);
+ myargv[1] = xbt_strdup(comm_size);
+ myargv[2] = NULL;
+
+ sprintf(spawn_name,"%s_%d", myargv[0], i);
+ comm_helper =
+ MSG_process_create_with_arguments(spawn_name, spawned_send,
+ NULL, MSG_host_self(), 2, myargv);
+ }
+
+ for(i=1;i<communicator_size;i++){
+ sprintf(task_name,"p%d_wait", i);
+ DEBUG1("get on %s", task_name);
+ MSG_task_receive(&task,task_name);
+ MSG_task_destroy(task);
+ task=NULL;
+ }
+ DEBUG2("%s: all messages sent by %s have been received",
+ name, process_name);
+
+ } else {
+ DEBUG2("%s: %s sends", name, process_name);
+ sprintf(task_name,"%s_%s_p0", name, process_name);
+ DEBUG1("put on %s", task_name);
+ MSG_task_send(MSG_task_create(name, 0, parse_double(comm_size), NULL),
+ task_name);
+
+ MSG_task_receive(&task, name);
+ MSG_task_destroy(task);
+ DEBUG2("%s: %s has received", name,process_name);
+ sprintf(task_name,"%s_wait", process_name);
+ DEBUG1("put on %s", task_name);
+ MSG_task_send(MSG_task_create("waiter",0,0,NULL),task_name);
+
+ }
+
+ MSG_process_set_data(MSG_process_self(), (void*)counters);
+ DEBUG2("%s %f", xbt_str_join(action, " "), MSG_get_clock()-clock);
+ free(name);
+}
+
+static void comm_size(xbt_dynar_t action)
+{
+ char *size = xbt_dynar_get_as(action, 2, char *);
+ communicator_size = parse_double(size);
+}
+
+static void compute(xbt_dynar_t action)
+{
+ char *name=NULL;
+ char *amout = xbt_dynar_get_as(action, 2, char *);
+ 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_debug))
+ name = xbt_str_join(action, " ");
+ DEBUG1("Entering %s", name);
+ MSG_task_execute(task);
+ MSG_task_destroy(task);
+ DEBUG2("%s %f", name, MSG_get_clock()-clock);
+ if (XBT_LOG_ISENABLED(actions,xbt_log_priority_debug))
+ free(name);
}
/** 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);
- }
-
- /* 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 */
- MSG_action_register("send", send);
- MSG_action_register("recv", recv);
- MSG_action_register("sleep", sleep);
- MSG_action_register("compute", compute);
-
- /* Actually do the simulation using MSG_action_trace_run */
- res = MSG_action_trace_run(argv[3]);
-
- INFO1("Simulation time %g",MSG_get_clock());
- MSG_clean();
-
- if(res==MSG_OK)
- return 0;
- else
- return 1;
-} /* end_of_main */
+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]);
+
+ /* Action registration */
+ MSG_action_register("comm_size", comm_size);
+ MSG_action_register("send", send);
+ MSG_action_register("Isend", Isend);
+ MSG_action_register("recv", recv);
+ MSG_action_register("Irecv", Irecv);
+ MSG_action_register("wait", wait_action);
+ MSG_action_register("barrier", barrier);
+ MSG_action_register("bcast", bcast);
+ MSG_action_register("reduce", reduce);
+ MSG_action_register("allReduce", allReduce);
+ MSG_action_register("sleep", sleep);
+ MSG_action_register("compute", 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
+
+ INFO1("Simulation time %g", MSG_get_clock());
+ MSG_clean();
+
+ if (res == MSG_OK)
+ return 0;
+ else
+ return 1;
+} /* end_of_main */
