int submit_tasks(struct work_queue *q, int input_size, int run_time, int output_size, int count )
{
static int ntasks=0;
char output_file[128];
char command[256];
char gen_input_cmd[256];
/*
Note that bs=1m and similar are not portable across various
implementations of dd, so we spell it out as bs=1048576
*/
sprintf(gen_input_cmd, "dd if=/dev/zero of=input.0 bs=1048576 count=%d",input_size);
system(gen_input_cmd);
int i;
for(i=0;i<count;i++) {
sprintf(output_file, "output.%d",ntasks++);
sprintf(command, "dd if=/dev/zero of=outfile bs=1048576 count=%d; sleep %d", output_size, run_time );
struct work_queue_task *t = work_queue_task_create(command);
work_queue_task_specify_file(t, "input.0", "infile", WORK_QUEUE_INPUT, WORK_QUEUE_CACHE);
work_queue_task_specify_file(t, output_file, "outfile", WORK_QUEUE_OUTPUT, WORK_QUEUE_NOCACHE);
work_queue_task_specify_cores(t,1);
work_queue_submit(q, t);
}
return 1;
}
int submit_task(struct work_queue *q, const char *command, const char *executable, const char *infile, off_t infile_offset_start, off_t infile_offset_end, const char *outfile) {
struct work_queue_task *t;
int taskid;
char *infile_dup = strdup(infile); //basename() modifies its arguments. So we need to pass a duplicate.
char *executable_dup = strdup(executable);
char *outfile_dup = strdup(outfile);
t = work_queue_task_create(command);
if (!work_queue_task_specify_file_piece(t, infile, basename(infile_dup), infile_offset_start, infile_offset_end, WORK_QUEUE_INPUT, WORK_QUEUE_NOCACHE)) {
fprintf(stderr, "task_specify_file_piece() failed for %s: start offset %ld, end offset %ld.\n", infile, infile_offset_start, infile_offset_end);
return 0;
}
if (!work_queue_task_specify_file(t, executable, basename(executable_dup), WORK_QUEUE_INPUT, WORK_QUEUE_CACHE)) {
fprintf(stderr, "task_specify_file() failed for %s: check if arguments are null or remote name is an absolute path.\n", executable);
return 0;
}
if (!work_queue_task_specify_file(t, outfile, basename(outfile_dup), WORK_QUEUE_OUTPUT, WORK_QUEUE_NOCACHE)) {
fprintf(stderr, "task_specify_file() failed for %s: check if arguments are null or remote name is an absolute path.\n", outfile);
return 0;
}
taskid = work_queue_submit(q, t);
fprintf(stdout, "submitted task (id# %d): %s\n", taskid, t->command_line);
free(infile_dup);
free(executable_dup);
free(outfile_dup);
return taskid;
}
int submit_task_series(struct work_queue *q, struct task_series *ts, int series_id) {
char input_file[128], output_file[128], command[256];
char gen_input_cmd[256];
sprintf(input_file, "input-%d", series_id);
list_push_tail(created_files, xxstrdup(input_file));
sprintf(gen_input_cmd, "dd if=/dev/zero of=%s bs=1M count=%d", input_file, ts->input_size);
system(gen_input_cmd);
// submit tasks to the queue
int i;
for(i = 0; i < ts->num_of_tasks; i++) {
sprintf(output_file, "output-%d-%d", series_id, i);
list_push_tail(created_files, xxstrdup(output_file));
sprintf(command, "dd if=/dev/zero of=%s bs=1M count=%d; sleep %d", output_file, ts->output_size, ts->execution_time);
struct work_queue_task *t = work_queue_task_create(command);
if (!work_queue_task_specify_file(t, input_file, input_file, WORK_QUEUE_INPUT, WORK_QUEUE_CACHE)) {
printf("task_specify_file() failed for %s: check if arguments are null or remote name is an absolute path.\n", input_file);
return 0;
}
if (!work_queue_task_specify_file(t, output_file, output_file, WORK_QUEUE_OUTPUT, WORK_QUEUE_NOCACHE)) {
printf("task_specify_file() failed for %s: check if arguments are null or remote name is an absolute path.\n", output_file);
return 0;
}
int taskid = work_queue_submit(q, t);
printf("submitted task (id# %d): %s\n", taskid, t->command_line);
}
return 1; // success
}
struct work_queue_task * ap_task_create( struct text_list *seta, struct text_list *setb )
{
int x,y;
char *buf, *name;
if(xcurrent>=xstop) {
xcurrent=0;
ycurrent+=yblock;
}
if(ycurrent>=ystop) return 0;
char cmd[ALLPAIRS_LINE_MAX];
sprintf(cmd,"./%s -e \"%s\" A B %s%s",string_basename(allpairs_multicore_program),extra_arguments,use_external_program ? "./" : "",string_basename(allpairs_compare_program));
struct work_queue_task *task = work_queue_task_create(cmd);
if(use_external_program) {
work_queue_task_specify_file(task,allpairs_compare_program,string_basename(allpairs_compare_program),WORK_QUEUE_INPUT,WORK_QUEUE_CACHE);
}
work_queue_task_specify_file(task,allpairs_multicore_program,string_basename(allpairs_multicore_program),WORK_QUEUE_INPUT,WORK_QUEUE_CACHE);
const char *f;
list_first_item(extra_files_list);
while((f = list_next_item(extra_files_list))) {
work_queue_task_specify_file(task,f,string_basename(f),WORK_QUEUE_INPUT,WORK_QUEUE_CACHE);
}
buf = text_list_string(seta,xcurrent,xcurrent+xblock);
work_queue_task_specify_buffer(task,buf,strlen(buf),"A",WORK_QUEUE_NOCACHE);
free(buf);
buf = text_list_string(setb,ycurrent,ycurrent+yblock);
work_queue_task_specify_buffer(task,buf,strlen(buf),"B",WORK_QUEUE_NOCACHE);
free(buf);
for(x=xcurrent;x<(xcurrent+xblock);x++) {
name = text_list_get(seta,x);
if(!name) break;
work_queue_task_specify_file(task,name,string_basename(name),WORK_QUEUE_INPUT,WORK_QUEUE_CACHE);
}
for(y=ycurrent;y<(ycurrent+yblock);y++) {
name = text_list_get(setb,y);
if(!name) break;
work_queue_task_specify_file(task,name,string_basename(name),WORK_QUEUE_INPUT,WORK_QUEUE_CACHE);
}
/* advance to the next row/column */
xcurrent += xblock;
return task;
}
static void task_submit(struct work_queue *q, int curr_rect_x, int curr_rect_y)
{
struct work_queue_task *t;
char rname_x[32];
char rname_y[32];
char cmd[255];
char fname_x[255];
char fname_y[255];
char tag[32];
sprintf(tag, "%03d-%03d", curr_rect_y, curr_rect_x);
sprintf(rname_x, "rect%03d.cfa", curr_rect_x);
if(curr_rect_x != curr_rect_y) {
sprintf(rname_y, "rect%03d.cfa", curr_rect_y);
} else {
sprintf(rname_y, "%s", "");
}
sprintf(cmd, "./%s %s %s %s", filter_program_name, filter_program_args, rname_x, rname_y);
// Create the task.
t = work_queue_task_create(cmd);
// Specify the tag for this task. Used for identifying which
// ones are done.
work_queue_task_specify_tag(t, tag);
// Send the executable, if it's not already there.
work_queue_task_specify_file(t, filter_program_path, filter_program_name, WORK_QUEUE_INPUT, WORK_QUEUE_CACHE);
// Send the repeat file if we need it and it's not already there.
if(repeat_filename)
work_queue_task_specify_file(t, repeat_filename, string_basename(repeat_filename), WORK_QUEUE_INPUT, WORK_QUEUE_CACHE);
// Add the rectangle. Add it as staged, so if the worker
// already has these sequences, there's no need to send them again.
sprintf(fname_x, "%s/%s", outdirname, rname_x);
work_queue_task_specify_file(t, fname_x, rname_x, WORK_QUEUE_INPUT, WORK_QUEUE_CACHE);
if(curr_rect_x != curr_rect_y) {
sprintf(fname_y, "%s/%s", outdirname, rname_y);
work_queue_task_specify_file(t, fname_y, rname_y, WORK_QUEUE_INPUT, WORK_QUEUE_CACHE);
}
work_queue_submit(q, t);
total_submitted++;
debug(D_DEBUG, "Submitted task for rectangle (%d, %d)\n", curr_rect_y, curr_rect_x);
}
static void specify_files(struct work_queue_task *t, const char *input_files, const char *output_files, int caching_flag )
{
char *f, *p, *files;
if(input_files) {
files = strdup(input_files);
f = strtok(files, " \t,");
while(f) {
p = strchr(f, '=');
if(p) {
*p = 0;
work_queue_task_specify_file(t, f, p + 1, WORK_QUEUE_INPUT, caching_flag);
*p = '=';
} else {
work_queue_task_specify_file(t, f, f, WORK_QUEUE_INPUT, caching_flag);
}
f = strtok(0, " \t,");
}
free(files);
}
if(output_files) {
files = strdup(output_files);
f = strtok(files, " \t,");
while(f) {
p = strchr(f, '=');
if(p) {
*p = 0;
work_queue_task_specify_file(t, f, p + 1, WORK_QUEUE_OUTPUT, caching_flag);
*p = '=';
} else {
work_queue_task_specify_file(t, f, f, WORK_QUEUE_OUTPUT, caching_flag);
}
f = strtok(0, " \t,");
}
free(files);
}
}
int main(int argc, char *argv[])
{
struct work_queue *q;
struct work_queue_task *t;
int port = WORK_QUEUE_DEFAULT_PORT;
int taskid;
int i;
if(argc < 2) {
printf("work_queue_example <executable> <file1> [file2] [file3] ...\n");
printf("Each file given on the command line will be compressed using a remote worker.\n");
return 0;
}
debug_flags_set("all");
q = work_queue_create(port);
if(!q) {
printf("couldn't listen on port %d: %s\n", port, strerror(errno));
return 1;
}
printf("listening on port %d...\n", work_queue_port(q));
for(i = 1; i < argc; i++) {
char infile[256], outfile[256], command[256];
sprintf(infile, "%s", argv[i]);
sprintf(outfile, "%s.gz", argv[i]);
sprintf(command, "./gzip < %s > %s", infile, outfile);
t = work_queue_task_create(command);
if (!work_queue_task_specify_file(t, "/usr/bin/gzip", "gzip", WORK_QUEUE_INPUT, WORK_QUEUE_CACHE)) {
printf("task_specify_file() failed for /usr/bin/gzip: check if arguments are null or remote name is an absolute path.\n");
return 1;
}
if (!work_queue_task_specify_file(t, infile, infile, WORK_QUEUE_INPUT, WORK_QUEUE_NOCACHE)) {
printf("task_specify_file() failed for %s: check if arguments are null or remote name is an absolute path.\n", infile);
return 1;
}
if (!work_queue_task_specify_file(t, outfile, outfile, WORK_QUEUE_OUTPUT, WORK_QUEUE_NOCACHE)) {
printf("task_specify_file() failed for %s: check if arguments are null or remote name is an absolute path.\n", outfile);
return 1;
}
taskid = work_queue_submit(q, t);
printf("submitted task (id# %d): %s\n", taskid, t->command_line);
}
printf("waiting for tasks to complete...\n");
while(!work_queue_empty(q)) {
t = work_queue_wait(q, 5);
if(t) {
printf("task (id# %d) complete: %s (return code %d)\n", t->taskid, t->command_line, t->return_status);
work_queue_task_delete(t);
}
}
printf("all tasks complete!\n");
work_queue_delete(q);
return 0;
}
int main(int argc, char *argv[])
{
struct work_queue *q;
struct work_queue_task *t;
int port = WORK_QUEUE_DEFAULT_PORT;
int taskid;
int i;
char *gzip_path;
if(argc < 2) {
printf("work_queue_example <file1> [file2] [file3] ...\n");
printf("Each file given on the command line will be compressed using a remote worker.\n");
return 0;
}
/*
Usually, we can execute the gzip utility by simply typing its name at a
terminal. However, this is not enough for work queue; we have to specify
precisely which files need to be transmitted to the workers. We record
the location of gzip in 'gzip_path', which is usually found in /bin/gzip
or /usr/bin/gzip. We use the 'access' function (from unistd.h standard C
library), and test the path for execution (X_OK) and reading (R_OK)
permissions.
*/
gzip_path = "/bin/gzip";
if(access(gzip_path, X_OK | R_OK) != 0) {
gzip_path = "/usr/bin/gzip";
if(access(gzip_path, X_OK | R_OK) != 0) {
fprintf(stderr, "gzip was not found. Please modify the gzip_path variable accordingly. To determine the location of gzip, from the terminal type: which gzip (usual locations are /bin/gzip and /usr/bin/gzip)\n");
exit(1);
}
}
/* We create the tasks queue using the default port. If this port is
* already been used by another program, you can try setting port = 0 to
* use an available port. */
q = work_queue_create(port);
if(!q) {
printf("couldn't listen on port %d: %s\n", port, strerror(errno));
return 1;
}
printf("listening on port %d...\n", work_queue_port(q));
/* We create and dispatch a task for each filename given in the argument list */
for(i = 1; i < argc; i++) {
char infile[256], outfile[256], command[256];
sprintf(infile, "%s", argv[i]);
sprintf(outfile, "%s.gz", argv[i]);
/* Note that we write ./gzip here, to guarantee that the gzip version
* we are using is the one being sent to the workers. */
sprintf(command, "./gzip < %s > %s", infile, outfile);
t = work_queue_task_create(command);
/* gzip is the same across all tasks, so we can cache it in the
* workers. Note that when specifying a file, we have to name its local
* name (e.g. gzip_path), and its remote name (e.g. "gzip"). Unlike the
* following line, more often than not these are the same. */
work_queue_task_specify_file(t, gzip_path, "gzip", WORK_QUEUE_INPUT, WORK_QUEUE_CACHE);
/* files to be compressed are different across all tasks, so we do not
* cache them. This is, of course, application specific. Sometimes you
* may want to cache an output file if is the input of a later task.*/
work_queue_task_specify_file(t, infile, infile, WORK_QUEUE_INPUT, WORK_QUEUE_NOCACHE);
work_queue_task_specify_file(t, outfile, outfile, WORK_QUEUE_OUTPUT, WORK_QUEUE_NOCACHE);
/* Once all files has been specified, we are ready to submit the task to the queue. */
taskid = work_queue_submit(q, t);
printf("submitted task (id# %d): %s\n", taskid, t->command_line);
}
printf("waiting for tasks to complete...\n");
while(!work_queue_empty(q)) {
/* Application specific code goes here ... */
/* work_queue_wait waits at most 5 seconds for some task to return. */
t = work_queue_wait(q, 5);
if(t) {
printf("task (id# %d) complete: %s (return code %d)\n", t->taskid, t->command_line, t->return_status);
if(t->return_status != 0)
{
/* The task failed. Error handling (e.g., resubmit with new parameters) here. */
}
work_queue_task_delete(t);
}
/* Application specific code goes here ... */
}
printf("all tasks complete!\n");
work_queue_delete(q);
return 0;
}
