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) {
21 fprintf(stderr, "Parse error on line %d: %s\n", dax_lineno, msg);
24 static double dax_parse_double(const char *string) {
28 ret = sscanf(string, "%lg", &value);
30 dax_parse_error(bprintf("%s is not a double", string));
33 static int dax_parse_int(const char *string) {
37 ret = sscanf(string, "%d", &value);
39 dax_parse_error(bprintf("%s is not an integer", string));
43 /* Ensure that transfer tasks have unique names even though a file is used
46 void uniq_transfer_task_name(SD_task_t task){
47 SD_task_t child, parent;
48 xbt_dynar_t children, parents;
51 children = SD_task_get_children(task);
52 parents = SD_task_get_parents(task);
54 xbt_dynar_get_cpy(children,0,&child);
55 xbt_dynar_get_cpy(parents,0,&parent);
57 new_name = bprintf("%s_%s_%s",
58 SD_task_get_name(parent),
59 SD_task_get_name(task),
60 SD_task_get_name(child));
62 SD_task_set_name (task, new_name);
64 xbt_dynar_free_container(&children);
65 xbt_dynar_free_container(&parents);
70 static YY_BUFFER_STATE input_buffer;
72 static xbt_dynar_t result;
73 static xbt_dict_t jobs;
74 static xbt_dict_t files;
75 static SD_task_t current_job;
76 static SD_task_t root_task,end_task;
78 static void dump_res() {
81 xbt_dynar_foreach(result,cursor,task) {
82 INFO1("Task %d",cursor);
87 static void dax_task_free(void*task){
92 /** @brief loads a DAX file describing a DAG
94 * See https://confluence.pegasus.isi.edu/display/pegasus/WorkflowGenerator
97 xbt_dynar_t SD_daxload(const char*filename) {
98 xbt_dict_cursor_t cursor;
101 FILE* in_file = fopen(filename,"r");
102 xbt_assert1(in_file, "Unable to open \"%s\"\n", filename);
103 input_buffer = dax__create_buffer(in_file, 10);
104 dax__switch_to_buffer(input_buffer);
107 result = xbt_dynar_new(sizeof(SD_task_t),dax_task_free);
108 files=xbt_dict_new();
110 root_task = SD_task_create_comp_seq("root",NULL,0);
111 /* by design the root task is always SCHEDULABLE */
112 __SD_task_set_state(root_task, SD_SCHEDULABLE);
114 xbt_dynar_push(result,&root_task);
115 end_task = SD_task_create_comp_seq("end",NULL,0);
117 xbt_assert2(!dax_lex(),"Parse error in %s: %s",filename,dax__parse_err_msg());
118 dax__delete_buffer(input_buffer);
120 xbt_dict_free(&jobs);
122 /* And now, post-process the files.
123 * We want a file task per pair of computation tasks exchanging the file. Duplicate on need
124 * Files not produced in the system are said to be produced by root task (top of DAG).
125 * Files not consumed in the system are said to be consumed by end task (bottom of DAG).
128 xbt_dict_foreach(files,cursor,name,file) {
129 unsigned int cpt1,cpt2;
130 SD_task_t newfile = NULL;
131 SD_dependency_t depbefore,depafter;
132 if (xbt_dynar_length(file->tasks_before) == 0) {
133 xbt_dynar_foreach(file->tasks_after,cpt2,depafter) {
134 SD_task_t newfile = SD_task_create_comm_e2e(file->name,NULL,file->amount);
135 SD_task_dependency_add(NULL,NULL,root_task,newfile);
136 SD_task_dependency_add(NULL,NULL,newfile,depafter->dst);
137 xbt_dynar_push(result,&newfile);
139 } else if (xbt_dynar_length(file->tasks_after) == 0) {
140 xbt_dynar_foreach(file->tasks_before,cpt2,depbefore) {
141 SD_task_t newfile = SD_task_create_comm_e2e(file->name,NULL,file->amount);
142 SD_task_dependency_add(NULL,NULL,depbefore->src,newfile);
143 SD_task_dependency_add(NULL,NULL,newfile,end_task);
144 xbt_dynar_push(result,&newfile);
147 xbt_dynar_foreach(file->tasks_before,cpt1,depbefore) {
148 xbt_dynar_foreach(file->tasks_after,cpt2,depafter) {
149 if (depbefore->src == depafter->dst) {
150 WARN2("File %s is produced and consumed by task %s. This loop dependency will prevent the execution of the task.",
151 file->name,depbefore->src->name);
153 newfile = SD_task_create_comm_e2e(file->name,NULL,file->amount);
154 SD_task_dependency_add(NULL,NULL,depbefore->src,newfile);
155 SD_task_dependency_add(NULL,NULL,newfile,depafter->dst);
156 xbt_dynar_push(result,&newfile);
162 /* Push end task last */
163 xbt_dynar_push(result,&end_task);
165 /* Free previous copy of the files */
166 xbt_dict_free(&files);
168 xbt_dynar_foreach(result,cpt,file) {
169 if (SD_task_get_kind(file)==SD_TASK_COMM_E2E){
170 uniq_transfer_task_name(file);
177 void STag_dax__adag(void) {
178 double version = dax_parse_double(A_dax__adag_version);
180 xbt_assert1((version == 2.1), "Expected version 2.1 in <adag> tag, got %f. Fix the parser or your file",version);
182 void STag_dax__job(void) {
183 double runtime = dax_parse_double(A_dax__job_runtime);
184 char *name=bprintf("%s@%s",A_dax__job_id,A_dax__job_name);
185 runtime*=4200000000.; /* Assume that timings were done on a 4.2GFlops machine. I mean, why not? */
186 // INFO3("See <job id=%s runtime=%s %.0f>",A_dax__job_id,A_dax__job_runtime,runtime);
187 current_job = SD_task_create_comp_seq(name,NULL,runtime);
188 xbt_dict_set(jobs,A_dax__job_id,current_job,NULL);
190 xbt_dynar_push(result,¤t_job);
192 void STag_dax__uses(void) {
194 double size = dax_parse_double(A_dax__uses_size);
195 int is_input = (A_dax__uses_link == A_dax__uses_link_input);
197 // INFO2("See <uses file=%s %s>",A_dax__uses_file,(is_input?"in":"out"));
198 file = xbt_dict_get_or_null(files,A_dax__uses_file);
200 file = SD_task_create_comm_e2e(A_dax__uses_file,NULL,size);
201 xbt_dict_set(files,A_dax__uses_file,file,&dax_task_free);
203 if (SD_task_get_amount(file)!=size) {
204 WARN3("Ignoring file %s size redefinition from %.0f to %.0f",
205 A_dax__uses_file,SD_task_get_amount(file),size);
209 SD_task_dependency_add(NULL,NULL,file,current_job);
211 SD_task_dependency_add(NULL,NULL,current_job,file);
212 if (xbt_dynar_length(file->tasks_before)>1) {
213 WARN1("File %s created at more than one location...",file->name);
217 static SD_task_t current_child;
218 void STag_dax__child(void) {
219 current_child = xbt_dict_get_or_null(jobs,A_dax__child_ref);
220 if (current_child==NULL)
221 dax_parse_error(bprintf("Asked to add dependencies to the non-existent %s task",A_dax__child_ref));
223 void ETag_dax__child(void) {
226 void STag_dax__parent(void) {
227 SD_task_t parent = xbt_dict_get_or_null(jobs,A_dax__parent_ref);
229 dax_parse_error(bprintf("Asked to add a dependency from %s to %s, but %s does not exist",
230 current_child->name,A_dax__parent_ref,A_dax__parent_ref));
231 SD_task_dependency_add(NULL,NULL,parent,current_child);
232 DEBUG2("Control-flow dependency from %s to %s", current_child->name,parent->name);
234 void ETag_dax__adag(void) {
235 // INFO0("See </adag>");
237 void ETag_dax__job(void) {
239 // INFO0("See </job>");
241 void ETag_dax__parent(void) {
242 // INFO0("See </parent>");
244 void ETag_dax__uses(void) {
245 // INFO0("See </uses>");