int host(int argc, char *argv[])
{
int host_number = atoi(MSG_process_get_name(MSG_process_self()));
char mailbox[256];
msg_task_t task = NULL;
XBT_ATTRIB_UNUSED int res;
if (host_number == 0) { //master send then receive
sprintf(mailbox, "%d", host_number+1);
task = MSG_task_create("Token", task_comp_size, task_comm_size, NULL);
XBT_INFO("Host \"%d\" send '%s' to Host \"%s\"",host_number,task->name,mailbox);
MSG_task_send(task, mailbox);
task = NULL;
res = MSG_task_receive(&(task), MSG_process_get_name(MSG_process_self()));
xbt_assert(res == MSG_OK, "MSG_task_get failed");
XBT_INFO("Host \"%d\" received \"%s\"",host_number, MSG_task_get_name(task));
MSG_task_destroy(task);
}
else { //slave receive then send
res = MSG_task_receive(&(task), MSG_process_get_name(MSG_process_self()));
xbt_assert(res == MSG_OK, "MSG_task_get failed");
XBT_INFO("Host \"%d\" received \"%s\"",host_number, MSG_task_get_name(task));
if(host_number+1 == nb_hosts)
sprintf(mailbox, "0");
else
sprintf(mailbox, "%d", host_number+1);
XBT_INFO("Host \"%d\" send '%s' to Host \"%s\"",host_number,task->name,mailbox);
MSG_task_send(task, mailbox);
}
return 0;
}
static int process_code(int argc, char *argv[])
{
msg_task_t task1 = NULL;
double cpu_task = 0;
double task_time = MSG_get_clock();
if (argc == 2)
{
/* Run a sleep task */
double sleep_task = atof(argv[1]);
MSG_process_sleep(sleep_task);
task_time = MSG_get_clock() - task_time;
XBT_INFO("Process %s executed task sleep cpu=%f, duration = %f",
MSG_process_get_name(MSG_process_self()), 0.0, task_time);
XBT_INFO("==================================================");
}
// Run a task
cpu_task = atof(argv[0]);
task1 = MSG_task_create ("task", cpu_task, 0, NULL);
MSG_task_execute (task1);
MSG_task_destroy(task1);
task_time = MSG_get_clock() - task_time;
XBT_INFO("Process %s executed task cpu=%f, duration = %f",
MSG_process_get_name(MSG_process_self()), cpu_task, task_time);
XBT_INFO("==================================================");
return 0;
}
/*
* Instrumentation functions to trace MSG processes (msg_process_t)
*/
void TRACE_msg_process_change_host(msg_process_t process, msg_host_t old_host, msg_host_t new_host)
{
if (TRACE_msg_process_is_enabled()){
static long long int counter = 0;
char key[INSTR_DEFAULT_STR_SIZE];
snprintf (key, INSTR_DEFAULT_STR_SIZE, "%lld", counter++);
int len = INSTR_DEFAULT_STR_SIZE;
char str[INSTR_DEFAULT_STR_SIZE];
//start link
container_t msg = PJ_container_get (instr_process_id(process, str, len));
type_t type = PJ_type_get ("MSG_PROCESS_LINK", PJ_type_get_root());
new_pajeStartLink (MSG_get_clock(), PJ_container_get_root(), type, msg, "M", key);
//destroy existing container of this process
TRACE_msg_process_destroy (MSG_process_get_name (process), MSG_process_get_PID (process));
//create new container on the new_host location
TRACE_msg_process_create (MSG_process_get_name (process), MSG_process_get_PID (process), new_host);
//end link
msg = PJ_container_get(instr_process_id(process, str, len));
type = PJ_type_get ("MSG_PROCESS_LINK", PJ_type_get_root());
new_pajeEndLink (MSG_get_clock(), PJ_container_get_root(), type, msg, "M", key);
}
}
static void simopen(const char *const *action) {
const char *processid = action[0];
const char *worktime = action[3];
double sleeptime;
const char *index = action[4];
char full_name[1024];
msg_file_t file = NULL;
double clock = MSG_get_clock(); /* this "call" is free thanks to inlining */
//Because the action open is too fast ,to catch up with the clock of the simulator, we let it to sleep for a while.
sleeptime = atof(worktime);
MSG_process_sleep(sleeptime);
//open slow filename
const char *file_name = action[2];
char fn[200];
strcpy(fn,file_name);
ReplaceStr(fn,"/home","/slow");
sprintf(full_name, "%s:%s:%s:%s","slow",file_name,MSG_process_get_name(MSG_process_self()),index);
ACT_DEBUG("Entering Open: %s (filename: %s)", NAME, file_name);
file = MSG_file_open(fn, NULL);
xbt_dict_set(opened_files, full_name, file, NULL);
//open fast filename
strcpy(fn,file_name);
ReplaceStr(fn,"/home","/fast");
sprintf(full_name, "%s:%s:%s:%s","fast",file_name,MSG_process_get_name(MSG_process_self()),index);
ACT_DEBUG("Entering Open: %s (filename: %s)", NAME, file_name);
file = MSG_file_open(fn, NULL);
xbt_dict_set(opened_files, full_name, file, NULL);
log_action(action, MSG_get_clock() - clock);
XBT_INFO("open worker %s%s is done",processid,index);
}
static void simcreat(const char *const *action) {
const char *processid = action[0];
const char *worktime = action[3];
double sleeptime;
const char *index = action[4];
char full_name[1024];
msg_file_t file = NULL;
double clock = MSG_get_clock(); /* this "call" is free thanks to inlining */
sleeptime = atof(worktime);
MSG_process_sleep(sleeptime);
//open slow file
const char *file_name = action[2];
char fn[200];
strcpy(fn,file_name);
ReplaceStr(fn,"/home","/slow");
sprintf(full_name, "%s:%s:%s:%s","slow",file_name,MSG_process_get_name(MSG_process_self()), index);
ACT_DEBUG("Entering Creat: %s (filename: %s)", NAME, file_name);
file = MSG_file_open(fn, NULL);
xbt_dict_set(opened_files, full_name, file, NULL);
//open fast version of file
strcpy(fn,file_name);
ReplaceStr(fn,"/home","/fast");
sprintf(full_name, "%s:%s:%s:%s","fast",file_name,MSG_process_get_name(MSG_process_self()), index);
ACT_DEBUG("Entering Creat: %s (filename: %s)", NAME, file_name);
file = MSG_file_open(fn, NULL);
xbt_dict_set(opened_files, full_name, file, NULL);
log_action(action, MSG_get_clock() - clock);
XBT_INFO("creat worker %s %s is done",processid,index);
}
int computation_fun(int argc, char *argv[])
{
const char *pr_name = MSG_process_get_name(MSG_process_self());
const char *host_name = MSG_host_get_name(MSG_host_self());
double clock_sta, clock_end;
atask = MSG_task_create("Task1", 1e9, 1e9, NULL);
clock_sta = MSG_get_clock();
XBT_INFO("%s:%s task 1 created %g", host_name, pr_name, clock_sta);
MSG_task_execute(atask);
clock_end = MSG_get_clock();
XBT_INFO("%s:%s task 1 executed %g", host_name, pr_name, clock_end - clock_sta);
MSG_task_destroy(atask);
atask = NULL;
MSG_process_sleep(1);
atask = MSG_task_create("Task2", 1e10, 1e10, NULL);
clock_sta = MSG_get_clock();
XBT_INFO("%s:%s task 2 created %g", host_name, pr_name, clock_sta);
MSG_task_execute(atask);
clock_end = MSG_get_clock();
XBT_INFO("%s:%s task 2 executed %g", host_name, pr_name, clock_end - clock_sta);
MSG_task_destroy(atask);
atask = NULL;
return 0;
}
void TRACE_msg_process_kill(msg_process_t process)
{
if (TRACE_msg_process_is_enabled()){
//kill means that this process no longer exists, let's destroy it
TRACE_msg_process_destroy (MSG_process_get_name (process), MSG_process_get_PID (process), MSG_process_get_host (process));
}
}
msg_file_t get_file_descriptor(const char *file_name,const char *index){//get file with the file full_name
char full_name[1024];
msg_file_t file = NULL;
sprintf(full_name, "%s:%s:%s", file_name,MSG_process_get_name(MSG_process_self()),index);
file = (msg_file_t) xbt_dict_get_or_null(opened_files, full_name);
return file;
}
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 msg_file_t get_file_descriptor(const char *file_name){
char full_name[1024];
msg_file_t file = NULL;
snprintf(full_name,1023, "%s:%s", MSG_process_get_name(MSG_process_self()), file_name);
file = (msg_file_t) xbt_dict_get_or_null(opened_files, full_name);
return file;
}
static int receiver_fun(int argc, char *argv[])
{
XBT_INFO("Receiving");
msg_task_t task = NULL;
MSG_task_receive_with_timeout(&task, MSG_host_get_name(MSG_host_self()), DBL_MAX);
xbt_assert(MSG_task_get_sender(task), "No sender received");
XBT_INFO("Got a message sent by '%s'", MSG_process_get_name(MSG_task_get_sender(task)));
MSG_task_destroy(task);
return 0;
}
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 int master(int argc, char *argv[])
{
xbt_swag_t process_list = MSG_host_get_process_list(MSG_host_self());
msg_process_t process = NULL;
MSG_process_sleep(1);
xbt_swag_foreach(process, process_list) {
XBT_INFO("Process(pid=%d, ppid=%d, name=%s)", MSG_process_get_PID(process), MSG_process_get_PPID(process),
MSG_process_get_name(process));
if (MSG_process_self_PID() != MSG_process_get_PID(process))
MSG_process_kill(process);
}
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 simopen(const char *const *action) {
const char *processid = action[0];
const char *file_name = action[2];
const char *index = action[4];
char full_name[1024];
msg_file_t file = NULL;
double clock = MSG_get_clock(); /* this "call" is free thanks to inlining */
sprintf(full_name, "%s:%s:%s", file_name,MSG_process_get_name(MSG_process_self()),index);
ACT_DEBUG("Entering Open: %s (filename: %s)", NAME, file_name);
file = MSG_file_open(full_name, NULL);
xbt_dict_set(opened_files, full_name, file, NULL);
log_action(action, MSG_get_clock() - clock);
XBT_INFO("open worker %s%s is done",processid,index);
}
/* Main function of all processes used in this example */
static int relay_runner(int argc, char* argv[])
{
xbt_assert(argc == 0, "The relay_runner function does not accept any parameter from the XML deployment file");
int rank = xbt_str_parse_int(MSG_process_get_name(MSG_process_self()),
"Any process of this example must have a numerical name, not %s");
char mailbox[256];
if (rank == 0) {
/* The root process (rank 0) first sends the token then waits to receive it back */
snprintf(mailbox, 255, "%d", rank + 1);
unsigned int task_comm_size = 1000000; /* The token is 1MB long*/
msg_task_t task = MSG_task_create("Token", 0, task_comm_size, NULL);
XBT_INFO("Host \"%d\" send '%s' to Host \"%s\"", rank, task->name, mailbox);
MSG_task_send(task, mailbox);
task = NULL;
int res = MSG_task_receive(&task, MSG_process_get_name(MSG_process_self()));
xbt_assert(res == MSG_OK, "MSG_task_get failed");
XBT_INFO("Host \"%d\" received \"%s\"", rank, MSG_task_get_name(task));
MSG_task_destroy(task);
} else {
/* The others processes receive from their left neighbor (rank-1) and send to their right neighbor (rank+1) */
msg_task_t task = NULL;
int res = MSG_task_receive(&task, MSG_process_get_name(MSG_process_self()));
xbt_assert(res == MSG_OK, "MSG_task_get failed");
XBT_INFO("Host \"%d\" received \"%s\"", rank, MSG_task_get_name(task));
if (rank + 1 == MSG_get_host_number())
/* But the last process, which sends the token back to rank 0 */
snprintf(mailbox, 255, "0");
else
snprintf(mailbox, 255, "%d", rank + 1);
XBT_INFO("Host \"%d\" send '%s' to Host \"%s\"", rank, task->name, mailbox);
MSG_task_send(task, mailbox);
}
return 0;
}
/** Receiver function */
int slave(int argc, char *argv[])
{
msg_task_t task = NULL;
_XBT_GNUC_UNUSED int res;
XBT_DEBUG("mailbox: %s",MSG_process_get_name(MSG_process_self()));
while (1) {
res = MSG_task_receive(&(task), MSG_process_get_name(MSG_process_self()));
xbt_assert(res == MSG_OK, "MSG_task_get failed");
XBT_DEBUG("Received \"%s\"", MSG_task_get_name(task));
if (!strcmp(MSG_task_get_name(task), "finalize")) {
MSG_task_destroy(task);
break;
}
XBT_DEBUG("Processing \"%s\"", MSG_task_get_name(task));
MSG_task_execute(task);
XBT_DEBUG("\"%s\" done", MSG_task_get_name(task));
MSG_task_destroy(task);
task = NULL;
}
XBT_DEBUG("I'm done. See you!");
return 0;
} /* end_of_slave */ /* end_of_test_all */
static void action_open(const char *const *action) {
const char *file_name = action[2];
char full_name[1024];
msg_file_t file = NULL;
double clock = MSG_get_clock();
snprintf(full_name,1023, "%s:%s", MSG_process_get_name(MSG_process_self()), file_name);
ACT_DEBUG("Entering Open: %s (filename: %s)", NAME, file_name);
file = MSG_file_open(file_name, NULL);
xbt_dict_set(opened_files, full_name, file, NULL);
log_action(action, MSG_get_clock() - clock);
}
xbt_dynar_foreach (process_list, cursor, process)
{
process_name = MSG_process_get_name (process);
host = MSG_process_get_host (process);
if ( strcmp (process_name, "worker") == 0 )
{
config.workers[wid] = host;
/* Set the worker ID as its data. */
wi = xbt_new (struct w_info_s, 1);
wi->wid = wid;
MSG_host_set_data (host, (void*)wi);
/* Add the worker's cpu power to the grid total. */
config.grid_cpu_power += MSG_get_host_speed (host);
wid++;
}
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 int computation_fun(int argc, char *argv[])
{
const char *pr_name = MSG_process_get_name(MSG_process_self());
const char *host_name = MSG_host_get_name(MSG_host_self());
msg_task_t task = MSG_task_create("Task", 1000000, 1000000, NULL);
double clock_sta = MSG_get_clock();
MSG_task_execute(task);
double clock_end = MSG_get_clock();
XBT_INFO("%s:%s task executed %g", host_name, pr_name, clock_end - clock_sta);
MSG_task_destroy(task);
return 0;
}
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();
}
/* 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(); /* this "call" is free thanks to inlining */
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();
}
/**
* @brief Initialize the config structure.
*/
static void init_config (void)
{
const char* process_name = NULL;
msg_host_t host;
msg_process_t process;
size_t wid;
unsigned int cursor;
w_info_t wi;
xbt_dynar_t process_list;
/* Initialize hosts information. */
config.number_of_workers = 0;
process_list = MSG_processes_as_dynar ();
xbt_dynar_foreach (process_list, cursor, process)
{
process_name = MSG_process_get_name (process);
if ( strcmp (process_name, "worker") == 0 )
config.number_of_workers++;
}
int host(int argc, char *argv[])
{
msg_file_t file = NULL;
sg_size_t read,write;
msg_storage_t st;
const char* st_name;
if(!strcmp(MSG_process_get_name(MSG_process_self()),"0")){
file = MSG_file_open(FILENAME1, NULL);
MSG_file_dump(file);
st_name = "Disk4";
} else if(!strcmp(MSG_process_get_name(MSG_process_self()),"1")) {
file = MSG_file_open(FILENAME2, NULL);
st_name = "Disk2";
} else if(!strcmp(MSG_process_get_name(MSG_process_self()),"2")){
file = MSG_file_open(FILENAME3, NULL);
st_name = "Disk3";
} else if(!strcmp(MSG_process_get_name(MSG_process_self()),"3")){
file = MSG_file_open(FILENAME4, NULL);
st_name = "Disk1";
}
else xbt_die("FILENAME NOT DEFINED %s",MSG_process_get_name(MSG_process_self()));
const char* filename = MSG_file_get_name(file);
XBT_INFO("\tOpen file '%s'",filename);
st = MSG_storage_get_by_name(st_name);
XBT_INFO("\tCapacity of the storage element '%s' is stored on: %llu / %llu",
filename, MSG_storage_get_used_size(st), MSG_storage_get_size(st));
/* Try to read for 10MB */
read = MSG_file_read(file, 10000000);
XBT_INFO("\tHave read %llu from '%s'",read,filename);
/* Write 100KB in file from the current position, i.e, end of file or 10MB */
write = MSG_file_write(file, 100000);
XBT_INFO("\tHave written %llu in '%s'. Size now is: %llu",write,filename,
MSG_file_get_size(file));
XBT_INFO("\tCapacity of the storage element '%s' is stored on: %llu / %llu",
filename, MSG_storage_get_used_size(st), MSG_storage_get_size(st));
/* rewind to the beginning of the file */
XBT_INFO("\tComing back to the beginning of the stream for file '%s'",
filename);
MSG_file_seek(file, 0, SEEK_SET);
/* Try to read 110KB */
read = MSG_file_read(file, 110000);
XBT_INFO("\tHave read %llu from '%s' (of size %llu)",read,filename,
MSG_file_get_size(file));
/* rewind once again to the beginning of the file */
XBT_INFO("\tComing back to the beginning of the stream for file '%s'",
filename);
MSG_file_seek(file, 0, SEEK_SET);
/* Write 110KB in file from the current position, i.e, end of file or 10MB */
write = MSG_file_write(file, 110000);
XBT_INFO("\tHave written %llu in '%s'. Size now is: %llu", write,filename,
MSG_file_get_size(file));
XBT_INFO("\tCapacity of the storage element '%s' is stored on: %llu / %llu",
filename, MSG_storage_get_used_size(st), MSG_storage_get_size(st));
XBT_INFO("\tClose file '%s'",filename);
MSG_file_close(file);
return 0;
}
/** \ingroup msg_task_usage
* \brief Executes a parallel task and waits for its termination.
*
* \param task a #msg_task_t to execute on the location on which the process is running.
*
* \return #MSG_OK if the task was successfully completed, #MSG_TASK_CANCELED
* or #MSG_HOST_FAILURE otherwise
*/
msg_error_t MSG_parallel_task_execute(msg_task_t task)
{
xbt_ex_t e;
simdata_task_t simdata = task->simdata;
msg_process_t self = SIMIX_process_self();
simdata_process_t p_simdata = SIMIX_process_self_get_data(self);
e_smx_state_t comp_state;
msg_error_t status = MSG_OK;
#ifdef HAVE_TRACING
TRACE_msg_task_execute_start(task);
#endif
xbt_assert((!simdata->compute) && (task->simdata->isused == 0),
"This task is executed somewhere else. Go fix your code! %d",
task->simdata->isused);
XBT_DEBUG("Computing on %s", MSG_process_get_name(MSG_process_self()));
if (simdata->computation_amount == 0 && !simdata->host_nb) {
#ifdef HAVE_TRACING
TRACE_msg_task_execute_end(task);
#endif
return MSG_OK;
}
TRY {
simdata->isused=1;
if (simdata->host_nb > 0) {
simdata->compute = simcall_host_parallel_execute(task->name,
simdata->host_nb,
simdata->host_list,
simdata->comp_amount,
simdata->comm_amount,
1.0, -1.0);
XBT_DEBUG("Parallel execution action created: %p", simdata->compute);
} else {
simdata->compute = simcall_host_execute(task->name,
p_simdata->m_host,
simdata->computation_amount,
simdata->priority);
}
#ifdef HAVE_TRACING
simcall_set_category(simdata->compute, task->category);
#endif
p_simdata->waiting_action = simdata->compute;
comp_state = simcall_host_execution_wait(simdata->compute);
p_simdata->waiting_action = NULL;
simdata->isused=0;
XBT_DEBUG("Execution task '%s' finished in state %d",
task->name, (int)comp_state);
}
CATCH(e) {
switch (e.category) {
case cancel_error:
status = MSG_TASK_CANCELED;
break;
default:
RETHROW;
}
xbt_ex_free(e);
}
/* action ended, set comm and compute = NULL, the actions is already destroyed
* in the main function */
simdata->computation_amount = 0.0;
simdata->comm = NULL;
simdata->compute = NULL;
#ifdef HAVE_TRACING
TRACE_msg_task_execute_end(task);
#endif
MSG_RETURN(status);
}
/** \ingroup msg_task_usage
* \brief Executes a parallel task and waits for its termination.
*
* \param task a #msg_task_t to execute on the location on which the process is running.
*
* \return #MSG_OK if the task was successfully completed, #MSG_TASK_CANCELED
* or #MSG_HOST_FAILURE otherwise
*/
msg_error_t MSG_parallel_task_execute(msg_task_t task)
{
simdata_task_t simdata = task->simdata;
simdata_process_t p_simdata = (simdata_process_t) SIMIX_process_self_get_data();
e_smx_state_t comp_state;
msg_error_t status = MSG_OK;
TRACE_msg_task_execute_start(task);
xbt_assert((!simdata->compute) && !task->simdata->isused,
"This task is executed somewhere else. Go fix your code!");
XBT_DEBUG("Computing on %s", MSG_process_get_name(MSG_process_self()));
if (simdata->flops_amount == 0 && !simdata->host_nb) {
TRACE_msg_task_execute_end(task);
return MSG_OK;
}
try {
simdata->setUsed();
if (simdata->host_nb > 0) {
simdata->compute = static_cast<simgrid::simix::Exec*>(
simcall_execution_parallel_start(task->name, simdata->host_nb,simdata->host_list,
simdata->flops_parallel_amount, simdata->bytes_parallel_amount,
1.0, -1.0));
XBT_DEBUG("Parallel execution action created: %p", simdata->compute);
} else {
unsigned long affinity_mask =
(unsigned long)(uintptr_t) xbt_dict_get_or_null_ext(simdata->affinity_mask_db, (char *) p_simdata->m_host,
sizeof(msg_host_t));
XBT_DEBUG("execute %s@%s with affinity(0x%04lx)",
MSG_task_get_name(task), MSG_host_get_name(p_simdata->m_host), affinity_mask);
simdata->compute = static_cast<simgrid::simix::Exec*>(
simcall_execution_start(task->name, simdata->flops_amount, simdata->priority,
simdata->bound, affinity_mask));
}
simcall_set_category(simdata->compute, task->category);
p_simdata->waiting_action = simdata->compute;
comp_state = simcall_execution_wait(simdata->compute);
p_simdata->waiting_action = nullptr;
simdata->setNotUsed();
XBT_DEBUG("Execution task '%s' finished in state %d", task->name, (int)comp_state);
}
catch (xbt_ex& e) {
switch (e.category) {
case cancel_error:
status = MSG_TASK_CANCELED;
break;
case host_error:
status = MSG_HOST_FAILURE;
break;
default:
throw;
}
}
/* action ended, set comm and compute = nullptr, the actions is already destroyed in the main function */
simdata->flops_amount = 0.0;
simdata->comm = nullptr;
simdata->compute = nullptr;
TRACE_msg_task_execute_end(task);
MSG_RETURN(status);
}
/** \ingroup msg_task_usage
* \brief Executes a parallel task and waits for its termination.
*
* \param task a #msg_task_t to execute on the location on which the process is running.
*
* \return #MSG_OK if the task was successfully completed, #MSG_TASK_CANCELED
* or #MSG_HOST_FAILURE otherwise
*/
msg_error_t MSG_parallel_task_execute(msg_task_t task)
{
xbt_ex_t e;
simdata_task_t simdata = task->simdata;
msg_process_t self = SIMIX_process_self();
simdata_process_t p_simdata = SIMIX_process_self_get_data(self);
e_smx_state_t comp_state;
msg_error_t status = MSG_OK;
TRACE_msg_task_execute_start(task);
xbt_assert((!simdata->compute) && (task->simdata->isused == 0),
"This task is executed somewhere else. Go fix your code! %d",
task->simdata->isused!=NULL);
XBT_DEBUG("Computing on %s", MSG_process_get_name(MSG_process_self()));
if (simdata->flops_amount == 0 && !simdata->host_nb) {
TRACE_msg_task_execute_end(task);
return MSG_OK;
}
TRY {
if (msg_global->debug_multiple_use)
MSG_BT(simdata->isused, "Using Backtrace");
else
simdata->isused = (void*)1;
if (simdata->host_nb > 0) {
simdata->compute = simcall_process_parallel_execute(task->name,
simdata->host_nb,
simdata->host_list,
simdata->flops_parallel_amount,
simdata->bytes_parallel_amount,
1.0, -1.0);
XBT_DEBUG("Parallel execution action created: %p", simdata->compute);
} else {
unsigned long affinity_mask = (unsigned long) xbt_dict_get_or_null_ext(simdata->affinity_mask_db, (char *) p_simdata->m_host, sizeof(msg_host_t));
XBT_DEBUG("execute %s@%s with affinity(0x%04lx)", MSG_task_get_name(task), MSG_host_get_name(p_simdata->m_host), affinity_mask);
simdata->compute = simcall_process_execute(task->name,
simdata->flops_amount,
simdata->priority,
simdata->bound,
affinity_mask
);
}
simcall_set_category(simdata->compute, task->category);
p_simdata->waiting_action = simdata->compute;
comp_state = simcall_process_execution_wait(simdata->compute);
p_simdata->waiting_action = NULL;
if (msg_global->debug_multiple_use && simdata->isused!=0)
xbt_ex_free(*(xbt_ex_t*)simdata->isused);
simdata->isused = 0;
XBT_DEBUG("Execution task '%s' finished in state %d",
task->name, (int)comp_state);
}
CATCH(e) {
switch (e.category) {
case cancel_error:
status = MSG_TASK_CANCELED;
break;
case host_error:
status = MSG_HOST_FAILURE;
break;
default:
RETHROW;
}
xbt_ex_free(e);
}
/* action ended, set comm and compute = NULL, the actions is already destroyed
* in the main function */
simdata->flops_amount = 0.0;
simdata->comm = NULL;
simdata->compute = NULL;
TRACE_msg_task_execute_end(task);
MSG_RETURN(status);
}
