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);
147 xbt_dynar_push(result, &newfile);
149 } else if (xbt_dynar_length(file->tasks_after) == 0) {
150 xbt_dynar_foreach(file->tasks_before, cpt2, depbefore) {
152 SD_task_create_comm_e2e(file->name, NULL, file->amount);
153 SD_task_dependency_add(NULL, NULL, depbefore->src, newfile);
154 SD_task_dependency_add(NULL, NULL, newfile, end_task);
155 xbt_dynar_push(result, &newfile);
158 xbt_dynar_foreach(file->tasks_before, cpt1, depbefore) {
159 xbt_dynar_foreach(file->tasks_after, cpt2, depafter) {
160 if (depbefore->src == depafter->dst) {
162 ("File %s is produced and consumed by task %s. This loop dependency will prevent the execution of the task.",
163 file->name, depbefore->src->name);
166 SD_task_create_comm_e2e(file->name, NULL, file->amount);
167 SD_task_dependency_add(NULL, NULL, depbefore->src, newfile);
168 SD_task_dependency_add(NULL, NULL, newfile, depafter->dst);
169 xbt_dynar_push(result, &newfile);
175 /* Push end task last */
176 xbt_dynar_push(result, &end_task);
178 /* Free previous copy of the files */
179 xbt_dict_free(&files);
181 xbt_dynar_foreach(result, cpt, file) {
182 if (SD_task_get_kind(file) == SD_TASK_COMM_E2E) {
183 uniq_transfer_task_name(file);
190 void STag_dax__adag(void)
192 double version = dax_parse_double(A_dax__adag_version);
194 xbt_assert1((version == 2.1),
195 "Expected version 2.1 in <adag> tag, got %f. Fix the parser or your file",
199 void STag_dax__job(void)
201 double runtime = dax_parse_double(A_dax__job_runtime);
202 char *name = bprintf("%s@%s", A_dax__job_id, A_dax__job_name);
203 runtime *= 4200000000.; /* Assume that timings were done on a 4.2GFlops machine. I mean, why not? */
204 // INFO3("See <job id=%s runtime=%s %.0f>",A_dax__job_id,A_dax__job_runtime,runtime);
205 current_job = SD_task_create_comp_seq(name, NULL, runtime);
206 xbt_dict_set(jobs, A_dax__job_id, current_job, NULL);
208 xbt_dynar_push(result, ¤t_job);
211 void STag_dax__uses(void)
214 double size = dax_parse_double(A_dax__uses_size);
215 int is_input = (A_dax__uses_link == A_dax__uses_link_input);
217 // INFO2("See <uses file=%s %s>",A_dax__uses_file,(is_input?"in":"out"));
218 file = xbt_dict_get_or_null(files, A_dax__uses_file);
220 file = SD_task_create_comm_e2e(A_dax__uses_file, NULL, size);
221 xbt_dict_set(files, A_dax__uses_file, file, &dax_task_free);
223 if (SD_task_get_amount(file) != size) {
224 WARN3("Ignoring file %s size redefinition from %.0f to %.0f",
225 A_dax__uses_file, SD_task_get_amount(file), size);
229 SD_task_dependency_add(NULL, NULL, file, current_job);
231 SD_task_dependency_add(NULL, NULL, current_job, file);
232 if (xbt_dynar_length(file->tasks_before) > 1) {
233 WARN1("File %s created at more than one location...", file->name);
238 static SD_task_t current_child;
239 void STag_dax__child(void)
241 current_child = xbt_dict_get_or_null(jobs, A_dax__child_ref);
242 if (current_child == NULL)
243 dax_parse_error(bprintf
244 ("Asked to add dependencies to the non-existent %s task",
248 void ETag_dax__child(void)
250 current_child = NULL;
253 void STag_dax__parent(void)
255 SD_task_t parent = xbt_dict_get_or_null(jobs, A_dax__parent_ref);
257 dax_parse_error(bprintf
258 ("Asked to add a dependency from %s to %s, but %s does not exist",
259 current_child->name, A_dax__parent_ref,
261 SD_task_dependency_add(NULL, NULL, parent, current_child);
262 DEBUG2("Control-flow dependency from %s to %s", current_child->name,
266 void ETag_dax__adag(void)
268 // INFO0("See </adag>");
271 void ETag_dax__job(void)
274 // INFO0("See </job>");
277 void ETag_dax__parent(void)
279 // INFO0("See </parent>");
282 void ETag_dax__uses(void)
284 // INFO0("See </uses>");