+++ /dev/null
-/* Copyright (c) 2009-2016. The SimGrid Team.
- * All rights reserved. */
-
-/* This program is free software; you can redistribute it and/or modify it
- * under the terms of the license (GNU LGPL) which comes with this package. */
-
-#include "simgrid/simdag.h"
-#include "xbt/misc.h"
-#include "xbt/log.h"
-#include "xbt/str.h"
-#include "xbt/file.h" /* xbt_basename() */
-#include "simdag_private.hpp"
-
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(sd_daxparse, sd, "Parsing DAX files");
-
-extern "C" {
- #undef CLEANUP
- #include "dax_dtd.h"
- #define register /* g++ don't like register, so don't say it */
- #include "dax_dtd.c"
- #undef register
-}
-
-/* Ensure that transfer tasks have unique names even though a file is used several times */
-
-void uniq_transfer_task_name(SD_task_t task)
-{
- SD_task_t child = *(task->successors->begin());
- SD_task_t parent = *(task->predecessors->begin());
-
- char *new_name = bprintf("%s_%s_%s", SD_task_get_name(parent), SD_task_get_name(task), SD_task_get_name(child));
-
- SD_task_set_name(task, new_name);
-
- free(new_name);
-}
-
-static bool children_are_marked(SD_task_t task){
- for (SD_task_t it : *task->successors)
- if (it->marked == 0)
- return false;
- for (SD_task_t it : *task->outputs)
- if (it->marked == 0)
- return false;
- return true;
-}
-
-static bool parents_are_marked(SD_task_t task){
- for (SD_task_t it : *task->predecessors)
- if (it->marked == 0)
- return false;
- for (SD_task_t it : *task->inputs)
- if (it->marked == 0)
- return false;
- return true;
-}
-
-bool acyclic_graph_detail(xbt_dynar_t dag){
- unsigned int count;
- bool all_marked = true;
- SD_task_t task = nullptr;
- std::vector<SD_task_t> current;
- xbt_dynar_foreach(dag,count,task){
- if(task->kind != SD_TASK_COMM_E2E){
- task->marked = 0;
- if(task->successors->empty() && task->outputs->empty())
- current.push_back(task);
- }
- }
- while(!current.empty()){
- std::vector<SD_task_t> next;
- for (auto t: current){
- //Mark task
- t->marked = 1;
- for (SD_task_t input : *t->inputs){
- input->marked=1;
- // Inputs are communication, hence they can have only one predecessor
- SD_task_t input_pred = *(input->predecessors->begin());
- if (children_are_marked(input_pred))
- next.push_back(input_pred);
- }
- for (SD_task_t pred : *t->predecessors) {
- if (children_are_marked(pred))
- next.push_back(pred);
- }
- }
- current.clear();
- current = next;
- }
-
- all_marked = true;
- //test if all tasks are marked
- xbt_dynar_foreach(dag,count,task){
- if(task->kind != SD_TASK_COMM_E2E && task->marked == 0){
- XBT_WARN("the task %s is not marked",task->name);
- all_marked = false;
- break;
- }
- }
-
- if(!all_marked){
- XBT_VERB("there is at least one cycle in your task graph");
- xbt_dynar_foreach(dag,count,task){
- if(task->kind != SD_TASK_COMM_E2E && task->predecessors->empty() && task->inputs->empty()){
- task->marked = 1;
- current.push_back(task);
- }
- }
- //test if something has to be done for the next iteration
- while(!current.empty()){
- std::vector<SD_task_t> next;
- //test if the current iteration is done
- for (auto t: current){
- t->marked = 1;
- for (SD_task_t output : *t->outputs) {
- output->marked = 1;
- // outputs are communication, hence they can have only one successor
- SD_task_t output_succ = *(output->successors->begin());
- if (parents_are_marked(output_succ))
- next.push_back(output_succ);
- }
- for (SD_task_t succ : *t->successors) {
- if (parents_are_marked(succ))
- next.push_back(succ);
- }
- current.clear();
- current = next;
- }
- }
-
- all_marked = true;
- xbt_dynar_foreach(dag,count,task){
- if(task->kind != SD_TASK_COMM_E2E && task->marked == 0){
- XBT_WARN("the task %s is in a cycle",task->name);
- all_marked = false;
- }
- }
- }
- return all_marked;
-}
-
-static YY_BUFFER_STATE input_buffer;
-
-static xbt_dynar_t result;
-static xbt_dict_t jobs;
-static xbt_dict_t files;
-static SD_task_t current_job;
-static SD_task_t root_task;
-static SD_task_t end_task;
-
-static void dax_task_free(void *task)
-{
- SD_task_destroy(static_cast<SD_task_t>(task));
-}
-
-/** @brief loads a DAX file describing a DAG
- *
- * See https://confluence.pegasus.isi.edu/display/pegasus/WorkflowGenerator for more details.
- */
-xbt_dynar_t SD_daxload(const char *filename)
-{
- xbt_dict_cursor_t cursor;
- SD_task_t file;
- char *name;
- FILE *in_file = fopen(filename, "r");
- xbt_assert(in_file, "Unable to open \"%s\"\n", filename);
- input_buffer = dax__create_buffer(in_file, 10);
- dax__switch_to_buffer(input_buffer);
- dax_lineno = 1;
-
- result = xbt_dynar_new(sizeof(SD_task_t), dax_task_free);
- files = xbt_dict_new_homogeneous(&dax_task_free);
- jobs = xbt_dict_new_homogeneous(nullptr);
- root_task = SD_task_create_comp_seq("root", nullptr, 0);
- /* by design the root task is always SCHEDULABLE */
- SD_task_set_state(root_task, SD_SCHEDULABLE);
-
- xbt_dynar_push(result, &root_task);
- end_task = SD_task_create_comp_seq("end", nullptr, 0);
-
- int res = dax_lex();
- if (res != 0)
- xbt_die("Parse error in %s: %s", filename, dax__parse_err_msg());
- dax__delete_buffer(input_buffer);
- fclose(in_file);
- 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) {
- SD_task_t newfile;
- if (file->predecessors->empty()) {
- for (SD_task_t it : *file->successors) {
- newfile = SD_task_create_comm_e2e(file->name, nullptr, file->amount);
- SD_task_dependency_add(nullptr, nullptr, root_task, newfile);
- SD_task_dependency_add(nullptr, nullptr, newfile, it);
- xbt_dynar_push(result, &newfile);
- }
- } else if (file->successors->empty()) {
- for (SD_task_t it : *file->predecessors){
- newfile = SD_task_create_comm_e2e(file->name, nullptr, file->amount);
- SD_task_dependency_add(nullptr, nullptr, it, newfile);
- SD_task_dependency_add(nullptr, nullptr, newfile, end_task);
- xbt_dynar_push(result, &newfile);
- }
- } else {
- for (SD_task_t it : *file->predecessors) {
- for (SD_task_t it2 : *file->successors) {
- if (it == it2) {
- XBT_WARN ("File %s is produced and consumed by task %s."
- "This loop dependency will prevent the execution of the task.", file->name, it->name);
- }
- newfile = SD_task_create_comm_e2e(file->name, nullptr, file->amount);
- SD_task_dependency_add(nullptr, nullptr, it, newfile);
- SD_task_dependency_add(nullptr, nullptr, newfile, it2);
- 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) && file->inputs->empty())
- SD_task_dependency_add(nullptr, nullptr, root_task, file);
- if ((file != end_task) && file->outputs->empty())
- SD_task_dependency_add(nullptr, nullptr, file, end_task);
- } else {
- THROW_IMPOSSIBLE;
- }
- }
-
- if (!acyclic_graph_detail(result)) {
- char* base = xbt_basename(filename);
- XBT_ERROR("The DAX described in %s is not a DAG. It contains a cycle.", base);
- free(base);
- xbt_dynar_foreach(result, cpt, file)
- SD_task_destroy(file);
- xbt_dynar_free_container(&result);
- return nullptr;
- } else {
- return result;
- }
-}
-
-void STag_dax__adag()
-{
- XBT_ATTRIB_UNUSED double version;
- version = xbt_str_parse_double(A_dax__adag_version, "Parse error: %s is not a double");
-
- xbt_assert(version == 2.1, "Expected version 2.1 in <adag> tag, got %f. Fix the parser or your file", version);
-}
-
-void STag_dax__job()
-{
- double runtime = xbt_str_parse_double(A_dax__job_runtime, "Parse error: %s is not a double");
- char *name = bprintf("%s@%s", A_dax__job_id, A_dax__job_name);
- runtime *= 4200000000.; /* Assume that timings were done on a 4.2GFlops machine. I mean, why not? */
- XBT_DEBUG("See <job id=%s runtime=%s %.0f>",A_dax__job_id,A_dax__job_runtime,runtime);
- current_job = SD_task_create_comp_seq(name, nullptr, runtime);
- xbt_dict_set(jobs, A_dax__job_id, current_job, nullptr);
- free(name);
- xbt_dynar_push(result, ¤t_job);
-}
-
-void STag_dax__uses()
-{
- double size = xbt_str_parse_double(A_dax__uses_size, "Parse error: %s is not a double");
- int is_input = (A_dax__uses_link == A_dax__uses_link_input);
-
- XBT_DEBUG("See <uses file=%s %s>",A_dax__uses_file,(is_input?"in":"out"));
- SD_task_t file = static_cast<SD_task_t>(xbt_dict_get_or_null(files, A_dax__uses_file));
- if (file == nullptr) {
- file = SD_task_create_comm_e2e(A_dax__uses_file, nullptr, size);
- sd_global->initial_tasks->erase(file);
- xbt_dict_set(files, A_dax__uses_file, file, nullptr);
- } else {
- if (file->amount < size || file->amount > size) {
- XBT_WARN("Ignore file %s size redefinition from %.0f to %.0f", A_dax__uses_file, SD_task_get_amount(file), size);
- }
- }
- if (is_input) {
- SD_task_dependency_add(nullptr, nullptr, file, current_job);
- } else {
- SD_task_dependency_add(nullptr, nullptr, current_job, file);
- if ((file->predecessors->size() + file->inputs->size()) > 1) {
- XBT_WARN("File %s created at more than one location...", file->name);
- }
- }
-}
-
-static SD_task_t current_child;
-void STag_dax__child()
-{
- current_child = static_cast<SD_task_t>(xbt_dict_get_or_null(jobs, A_dax__child_ref));
- xbt_assert(current_child != nullptr,"Parse error on line %d: Asked to add dependencies to the non-existent %s task",
- dax_lineno, A_dax__child_ref);
-}
-
-void ETag_dax__child()
-{
- current_child = nullptr;
-}
-
-void STag_dax__parent()
-{
- SD_task_t parent = static_cast<SD_task_t>(xbt_dict_get_or_null(jobs, A_dax__parent_ref));
- xbt_assert(parent != nullptr, "Parse error on line %d: Asked to add a dependency from %s to %s, but %s does not exist",
- dax_lineno, current_child->name, A_dax__parent_ref, A_dax__parent_ref);
- SD_task_dependency_add(nullptr, nullptr, parent, current_child);
- XBT_DEBUG("Control-flow dependency from %s to %s", current_child->name, parent->name);
-}
-
-void ETag_dax__adag()
-{
- XBT_DEBUG("See </adag>");
-}
-
-void ETag_dax__job()
-{
- current_job = nullptr;
- XBT_DEBUG("See </job>");
-}
-
-void ETag_dax__parent()
-{
- XBT_DEBUG("See </parent>");
-}
-
-void ETag_dax__uses()
-{
- XBT_DEBUG("See </uses>");
-}
