1 /* Copyright (c) 2009, 2010. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
8 #include "simdag/simdag.h"
12 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(sd_daxparse, sd, "Parsing DAX files");
20 static void dax_parse_error(char *msg)
22 fprintf(stderr, "Parse error on line %d: %s\n", dax_lineno, msg);
26 static double dax_parse_double(const char *string)
31 ret = sscanf(string, "%lg", &value);
33 dax_parse_error(bprintf("%s is not a double", string));
37 static int dax_parse_int(const char *string)
42 ret = sscanf(string, "%d", &value);
44 dax_parse_error(bprintf("%s is not an integer", string));
48 /* Ensure that transfer tasks have unique names even though a file is used
51 void uniq_transfer_task_name(SD_task_t task)
53 SD_task_t child, parent;
54 xbt_dynar_t children, parents;
57 children = SD_task_get_children(task);
58 parents = SD_task_get_parents(task);
60 xbt_dynar_get_cpy(children, 0, &child);
61 xbt_dynar_get_cpy(parents, 0, &parent);
63 new_name = bprintf("%s_%s_%s",
64 SD_task_get_name(parent),
65 SD_task_get_name(task), SD_task_get_name(child));
67 SD_task_set_name(task, new_name);
69 xbt_dynar_free_container(&children);
70 xbt_dynar_free_container(&parents);
75 static YY_BUFFER_STATE input_buffer;
77 static xbt_dynar_t result;
78 static xbt_dict_t jobs;
79 static xbt_dict_t files;
80 static SD_task_t current_job;
81 static SD_task_t root_task, end_task;
83 static void dump_res()
87 xbt_dynar_foreach(result, cursor, task) {
88 INFO1("Task %d", cursor);
93 static void dax_task_free(void *task)
99 /** @brief loads a DAX file describing a DAG
101 * See https://confluence.pegasus.isi.edu/display/pegasus/WorkflowGenerator
104 xbt_dynar_t SD_daxload(const char *filename)
106 xbt_dict_cursor_t cursor;
109 FILE *in_file = fopen(filename, "r");
110 xbt_assert1(in_file, "Unable to open \"%s\"\n", filename);
111 input_buffer = dax__create_buffer(in_file, 10);
112 dax__switch_to_buffer(input_buffer);
115 result = xbt_dynar_new(sizeof(SD_task_t), dax_task_free);
116 files = xbt_dict_new();
117 jobs = xbt_dict_new();
118 root_task = SD_task_create_comp_seq("root", NULL, 0);
119 /* by design the root task is always SCHEDULABLE */
120 __SD_task_set_state(root_task, SD_SCHEDULABLE);
122 xbt_dynar_push(result, &root_task);
123 end_task = SD_task_create_comp_seq("end", NULL, 0);
125 xbt_assert2(!dax_lex(), "Parse error in %s: %s", filename,
126 dax__parse_err_msg());
127 dax__delete_buffer(input_buffer);
129 xbt_dict_free(&jobs);
131 /* And now, post-process the files.
132 * We want a file task per pair of computation tasks exchanging the file. Duplicate on need
133 * Files not produced in the system are said to be produced by root task (top of DAG).
134 * Files not consumed in the system are said to be consumed by end task (bottom of DAG).
137 xbt_dict_foreach(files, cursor, name, file) {
138 unsigned int cpt1, cpt2;
139 SD_task_t newfile = NULL;
140 SD_dependency_t depbefore, depafter;
141 if (xbt_dynar_length(file->tasks_before) == 0) {
142 xbt_dynar_foreach(file->tasks_after, cpt2, depafter) {
144 SD_task_create_comm_e2e(file->name, NULL, file->amount);
145 SD_task_dependency_add(NULL, NULL, root_task, newfile);
146 SD_task_dependency_add(NULL, NULL, newfile, depafter->dst);
148 const char *category = depbefore->src->category;
150 TRACE_category (category);
151 TRACE_sd_set_task_category (newfile, category);
154 xbt_dynar_push(result, &newfile);
156 } else if (xbt_dynar_length(file->tasks_after) == 0) {
157 xbt_dynar_foreach(file->tasks_before, cpt2, depbefore) {
159 SD_task_create_comm_e2e(file->name, NULL, file->amount);
160 SD_task_dependency_add(NULL, NULL, depbefore->src, newfile);
161 SD_task_dependency_add(NULL, NULL, newfile, end_task);
163 const char *category = depbefore->src->category;
165 TRACE_category (category);
166 TRACE_sd_set_task_category (newfile, category);
169 xbt_dynar_push(result, &newfile);
172 xbt_dynar_foreach(file->tasks_before, cpt1, depbefore) {
173 xbt_dynar_foreach(file->tasks_after, cpt2, depafter) {
174 if (depbefore->src == depafter->dst) {
176 ("File %s is produced and consumed by task %s. This loop dependency will prevent the execution of the task.",
177 file->name, depbefore->src->name);
180 SD_task_create_comm_e2e(file->name, NULL, file->amount);
181 SD_task_dependency_add(NULL, NULL, depbefore->src, newfile);
182 SD_task_dependency_add(NULL, NULL, newfile, depafter->dst);
184 const char *category = depbefore->src->category;
186 TRACE_category (category);
187 TRACE_sd_set_task_category (newfile, category);
190 xbt_dynar_push(result, &newfile);
196 /* Push end task last */
197 xbt_dynar_push(result, &end_task);
199 /* Free previous copy of the files */
200 xbt_dict_free(&files);
202 xbt_dynar_foreach(result, cpt, file) {
203 if (SD_task_get_kind(file) == SD_TASK_COMM_E2E) {
204 uniq_transfer_task_name(file);
208 acyclic_graph_detection(result);
212 void STag_dax__adag(void)
214 double version = dax_parse_double(A_dax__adag_version);
216 xbt_assert1((version == 2.1),
217 "Expected version 2.1 in <adag> tag, got %f. Fix the parser or your file",
221 void STag_dax__job(void)
223 double runtime = dax_parse_double(A_dax__job_runtime);
224 char *name = bprintf("%s@%s", A_dax__job_id, A_dax__job_name);
225 runtime *= 4200000000.; /* Assume that timings were done on a 4.2GFlops machine. I mean, why not? */
226 // INFO3("See <job id=%s runtime=%s %.0f>",A_dax__job_id,A_dax__job_runtime,runtime);
227 current_job = SD_task_create_comp_seq(name, NULL, runtime);
229 char *category = A_dax__job_name;
231 TRACE_category (category);
232 TRACE_sd_set_task_category(current_job, category);
235 xbt_dict_set(jobs, A_dax__job_id, current_job, NULL);
237 xbt_dynar_push(result, ¤t_job);
240 void STag_dax__uses(void)
243 double size = dax_parse_double(A_dax__uses_size);
244 int is_input = (A_dax__uses_link == A_dax__uses_link_input);
246 // INFO2("See <uses file=%s %s>",A_dax__uses_file,(is_input?"in":"out"));
247 file = xbt_dict_get_or_null(files, A_dax__uses_file);
249 file = SD_task_create_comm_e2e(A_dax__uses_file, NULL, size);
250 xbt_dict_set(files, A_dax__uses_file, file, &dax_task_free);
252 if (SD_task_get_amount(file) != size) {
253 WARN3("Ignoring file %s size redefinition from %.0f to %.0f",
254 A_dax__uses_file, SD_task_get_amount(file), size);
258 SD_task_dependency_add(NULL, NULL, file, current_job);
260 SD_task_dependency_add(NULL, NULL, current_job, file);
261 if (xbt_dynar_length(file->tasks_before) > 1) {
262 WARN1("File %s created at more than one location...", file->name);
267 static SD_task_t current_child;
268 void STag_dax__child(void)
270 current_child = xbt_dict_get_or_null(jobs, A_dax__child_ref);
271 if (current_child == NULL)
272 dax_parse_error(bprintf
273 ("Asked to add dependencies to the non-existent %s task",
277 void ETag_dax__child(void)
279 current_child = NULL;
282 void STag_dax__parent(void)
284 SD_task_t parent = xbt_dict_get_or_null(jobs, A_dax__parent_ref);
286 dax_parse_error(bprintf
287 ("Asked to add a dependency from %s to %s, but %s does not exist",
288 current_child->name, A_dax__parent_ref,
290 SD_task_dependency_add(NULL, NULL, parent, current_child);
291 DEBUG2("Control-flow dependency from %s to %s", current_child->name,
295 void ETag_dax__adag(void)
297 // INFO0("See </adag>");
300 void ETag_dax__job(void)
303 // INFO0("See </job>");
306 void ETag_dax__parent(void)
308 // INFO0("See </parent>");
311 void ETag_dax__uses(void)
313 // INFO0("See </uses>");