+ dax_lex_destroy();
+ xbt_dict_free(&jobs);
+
+ /* And now, post-process the files.
+ * We want a file task per pair of computation tasks exchanging the file. Duplicate on need
+ * Files not produced in the system are said to be produced by root task (top of DAG).
+ * Files not consumed in the system are said to be consumed by end task (bottom of DAG).
+ */
+
+ xbt_dict_foreach(files, cursor, name, file) {
+ unsigned int cpt1, cpt2;
+ SD_task_t newfile;
+ SD_dependency_t depbefore, depafter;
+ if (xbt_dynar_is_empty(file->tasks_before)) {
+ xbt_dynar_foreach(file->tasks_after, cpt2, depafter) {
+ newfile = SD_task_create_comm_e2e(file->name, NULL, file->amount);
+ SD_task_dependency_add(NULL, NULL, root_task, newfile);
+ SD_task_dependency_add(NULL, NULL, newfile, depafter->dst);
+#ifdef HAVE_TRACING
+ if (depafter->src){
+ const char *category = depafter->src->category;
+ if (category){
+ TRACE_category (category);
+ TRACE_sd_set_task_category(newfile, category);
+ }
+ }
+#endif
+ xbt_dynar_push(result, &newfile);
+ }
+ } else if (xbt_dynar_is_empty(file->tasks_after)) {
+ xbt_dynar_foreach(file->tasks_before, cpt2, depbefore) {
+ newfile = SD_task_create_comm_e2e(file->name, NULL, file->amount);
+ SD_task_dependency_add(NULL, NULL, depbefore->src, newfile);
+ SD_task_dependency_add(NULL, NULL, newfile, end_task);
+#ifdef HAVE_TRACING
+ if (depbefore->src){
+ const char *category = depbefore->src->category;
+ if (category){
+ TRACE_category (category);
+ TRACE_sd_set_task_category(newfile, category);
+ }
+ }
+#endif
+ xbt_dynar_push(result, &newfile);
+ }
+ } else {
+ xbt_dynar_foreach(file->tasks_before, cpt1, depbefore) {
+ xbt_dynar_foreach(file->tasks_after, cpt2, depafter) {
+ if (depbefore->src == depafter->dst) {
+ XBT_WARN
+ ("File %s is produced and consumed by task %s. This loop dependency will prevent the execution of the task.",
+ file->name, depbefore->src->name);
+ }
+ newfile = SD_task_create_comm_e2e(file->name, NULL, file->amount);
+ SD_task_dependency_add(NULL, NULL, depbefore->src, newfile);
+ SD_task_dependency_add(NULL, NULL, newfile, depafter->dst);
+#ifdef HAVE_TRACING
+ if (depbefore->src){
+ const char *category = depbefore->src->category;
+ if (category){
+ TRACE_category (category);
+ TRACE_sd_set_task_category(newfile, category);
+ }
+ }
+#endif
+ xbt_dynar_push(result, &newfile);
+ }
+ }
+ }
+ }
+
+ /* Push end task last */
+ xbt_dynar_push(result, &end_task);
+
+ /* Free previous copy of the files */
+ xbt_dict_free(&files);
+ unsigned int cpt;
+ xbt_dynar_foreach(result, cpt, file) {
+ if (SD_task_get_kind(file) == SD_TASK_COMM_E2E) {
+ uniq_transfer_task_name(file);
+ } else if (SD_task_get_kind(file) == SD_TASK_COMP_SEQ){
+ /* If some tasks do not take files as input, connect them to the root, if
+ * they don't produce files, connect them to the end node.
+ */
+ if ((file != root_task) && xbt_dynar_is_empty(file->tasks_before)) {
+ SD_task_dependency_add(NULL, NULL, root_task, file);
+ }
+ if ((file != end_task) && xbt_dynar_is_empty(file->tasks_after)) {
+ SD_task_dependency_add(NULL, NULL, file, end_task);
+ }
+ }
+ }
+
+ if (!acyclic_graph_detail(result)){
+ XBT_ERROR("The DAX described in %s is not a DAG. It contains a cycle.",
+ basename((char*)filename));
+ xbt_dynar_foreach(result, cpt, file)
+ SD_task_destroy(file);
+ xbt_dynar_free_container(&result);
+ return NULL;
+ } else {
+ return result;
+ }