+++ /dev/null
-/* Copyright (c) 2009-2021. 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 "src/internal_config.h"
-#include <algorithm>
-#include <map>
-#include <simgrid/s4u/Comm.hpp>
-#include <simgrid/s4u/Engine.hpp>
-#include <simgrid/s4u/Exec.hpp>
-#include <stdexcept>
-#include <xbt/asserts.h>
-#include <xbt/file.hpp>
-#include <xbt/log.h>
-#include <xbt/misc.h>
-
-#include "dax_dtd.h"
-#include "dax_dtd.c"
-
-XBT_LOG_NEW_DEFAULT_CATEGORY(dag_parsing, "Generation DAGs from files");
-
-#if HAVE_GRAPHVIZ
-#include <graphviz/cgraph.h>
-#endif
-
-/* Ensure that transfer tasks have unique names even though a file is used several times */
-static void uniq_transfer_task_name(simgrid::s4u::Comm* comm)
-{
- const auto& child = comm->get_successors().front();
- const auto& parent = *(comm->get_dependencies().begin());
-
- std::string new_name = parent->get_name() + "_" + comm->get_name() + "_" + child->get_name();
-
- comm->set_name(new_name)->vetoable_start();
-}
-
-static bool check_for_cycle(const std::vector<simgrid::s4u::ActivityPtr>& dag)
-{
- std::vector<simgrid::s4u::ActivityPtr> current;
-
- for (const auto& a : dag)
- if (dynamic_cast<simgrid::s4u::Exec*>(a.get()) != nullptr && a->is_waited_by() == 0)
- current.push_back(a);
-
- while (not current.empty()) {
- std::vector<simgrid::s4u::ActivityPtr> next;
- for (auto const& a : current) {
- a->mark();
- for (auto const& pred : a->get_dependencies()) {
- if (dynamic_cast<simgrid::s4u::Comm*>(pred.get()) != nullptr) {
- pred->mark();
- // Comms have only one predecessor
- auto pred_pred = *(pred->get_dependencies().begin());
- if (std::none_of(pred_pred->get_successors().begin(), pred_pred->get_successors().end(),
- [](const simgrid::s4u::ActivityPtr& act) { return not act->is_marked(); }))
- next.push_back(pred_pred);
- } else {
- if (std::none_of(pred->get_successors().begin(), pred->get_successors().end(),
- [](const simgrid::s4u::ActivityPtr& act) { return not act->is_marked(); }))
- next.push_back(pred);
- }
- }
- }
- current.clear();
- current = next;
- }
-
- return not std::any_of(dag.begin(), dag.end(), [](const simgrid::s4u::ActivityPtr& a) { return not a->is_marked(); });
-}
-
-static YY_BUFFER_STATE input_buffer;
-
-namespace simgrid {
-namespace s4u {
-
-static std::vector<ActivityPtr> result;
-static std::map<std::string, ExecPtr, std::less<>> jobs;
-static std::map<std::string, Comm*, std::less<>> files;
-static ExecPtr current_job;
-
-/** @brief loads a DAX file describing a DAG
- *
- * See https://confluence.pegasus.isi.edu/display/pegasus/WorkflowGenerator for more details.
- */
-std::vector<ActivityPtr> create_DAG_from_DAX(const std::string& filename)
-{
- FILE* in_file = fopen(filename.c_str(), "r");
- xbt_assert(in_file, "Unable to open \"%s\"\n", filename.c_str());
- input_buffer = dax__create_buffer(in_file, 10);
- dax__switch_to_buffer(input_buffer);
- dax_lineno = 1;
-
- auto root_task = Exec::init()->set_name("root")->set_flops_amount(0);
- root_task->vetoable_start();
-
- result.push_back(root_task);
-
- auto end_task = Exec::init()->set_name("end")->set_flops_amount(0);
- end_task->vetoable_start();
-
- xbt_assert(dax_lex() == 0, "Parse error in %s: %s", filename.c_str(), dax__parse_err_msg());
- dax__delete_buffer(input_buffer);
- fclose(in_file);
- dax_lex_destroy();
-
- /* 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).
- */
- CommPtr file;
-
- for (auto const& elm : files) {
- file = elm.second;
- CommPtr newfile;
- if (file->dependencies_solved()) {
- for (auto const& it : file->get_successors()) {
- newfile = Comm::sendto_init()->set_name(file->get_name())->set_payload_size(file->get_remaining());
- root_task->add_successor(newfile);
- newfile->add_successor(it);
- result.push_back(newfile);
- }
- }
- if (file->is_waited_by() == 0) {
- for (auto const& it : file->get_dependencies()) {
- newfile = Comm::sendto_init()->set_name(file->get_name())->set_payload_size(file->get_remaining());
- it->add_successor(newfile);
- newfile->add_successor(end_task);
- result.push_back(newfile);
- }
- }
- for (auto const& it : file->get_dependencies()) {
- for (auto const& it2 : file->get_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->get_cname(), it->get_cname());
- }
- newfile = Comm::sendto_init()->set_name(file->get_name())->set_payload_size(file->get_remaining());
- it->add_successor(newfile);
- newfile->add_successor(it2);
- result.push_back(newfile);
- }
- }
- /* Free previous copy of the files */
- file->destroy();
- }
-
- /* Push end task last */
- result.push_back(end_task);
-
- for (const auto& a : result) {
- auto* comm = dynamic_cast<Comm*>(a.get());
- if (comm != nullptr) {
- uniq_transfer_task_name(comm);
- } else {
- /* 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 ((a != root_task) && (a != end_task)) {
- if (a->dependencies_solved())
- root_task->add_successor(a);
- if (a->is_waited_by() == 0)
- a->add_successor(end_task);
- }
- }
- }
-
- if (not check_for_cycle(result)) {
- XBT_ERROR("The DAX described in %s is not a DAG. It contains a cycle.",
- simgrid::xbt::Path(filename).get_base_name().c_str());
- for (const auto& a : result)
- a->destroy();
- result.clear();
- }
-
- return result;
-}
-
-#if HAVE_GRAPHVIZ
-std::vector<ActivityPtr> create_DAG_from_dot(const std::string& filename)
-{
- FILE* in_file = fopen(filename.c_str(), "r");
- xbt_assert(in_file != nullptr, "Failed to open file: %s", filename.c_str());
-
- Agraph_t* dag_dot = agread(in_file, NIL(Agdisc_t*));
-
- std::unordered_map<std::string, ActivityPtr> activities;
- std::vector<ActivityPtr> dag;
-
- ActivityPtr root;
- ActivityPtr end;
- ActivityPtr act;
- /* Create all the nodes */
- Agnode_t* node = nullptr;
- for (node = agfstnode(dag_dot); node; node = agnxtnode(dag_dot, node)) {
- char* name = agnameof(node);
- double amount = atof(agget(node, (char*)"size"));
-
- if (activities.find(name) == activities.end()) {
- XBT_DEBUG("See <Exec id = %s amount = %.0f>", name, amount);
- act = Exec::init()->set_name(name)->set_flops_amount(amount)->vetoable_start();
- activities.insert({std::string(name), act});
- if (strcmp(name, "root") && strcmp(name, "end"))
- dag.push_back(act);
- } else {
- XBT_WARN("Exec '%s' is defined more than once", name);
- }
- }
- /*Check if 'root' and 'end' nodes have been explicitly declared. If not, create them. */
- if (activities.find("root") == activities.end())
- root = Exec::init()->set_name("root")->set_flops_amount(0)->vetoable_start();
- else
- root = activities.at("root");
-
- if (activities.find("end") == activities.end())
- end = Exec::init()->set_name("end")->set_flops_amount(0)->vetoable_start();
- else
- end = activities.at("end");
-
- /* Create edges */
- std::vector<Agedge_t*> edges;
- for (node = agfstnode(dag_dot); node; node = agnxtnode(dag_dot, node)) {
- edges.clear();
- for (Agedge_t* edge = agfstout(dag_dot, node); edge; edge = agnxtout(dag_dot, edge))
- edges.push_back(edge);
-
- /* Be sure edges are sorted */
- std::sort(edges.begin(), edges.end(), [](const Agedge_t* a, const Agedge_t* b) { return AGSEQ(a) < AGSEQ(b); });
-
- for (Agedge_t* edge : edges) {
- const char* src_name = agnameof(agtail(edge));
- const char* dst_name = agnameof(aghead(edge));
- double size = atof(agget(edge, (char*)"size"));
-
- ActivityPtr src = activities.at(src_name);
- ActivityPtr dst = activities.at(dst_name);
- if (size > 0) {
- std::string name = std::string(src_name) + "->" + dst_name;
- XBT_DEBUG("See <Comm id=%s amount = %.0f>", name.c_str(), size);
- if (activities.find(name) == activities.end()) {
- act = Comm::sendto_init()->set_name(name)->set_payload_size(size)->vetoable_start();
- src->add_successor(act);
- act->add_successor(dst);
- activities.insert({name, act});
- dag.push_back(act);
- } else {
- XBT_WARN("Comm '%s' is defined more than once", name.c_str());
- }
- } else {
- src->add_successor(dst);
- }
- }
- }
-
- XBT_DEBUG("All activities have been created, put %s at the beginning and %s at the end", root->get_cname(),
- end->get_cname());
- dag.insert(dag.begin(), root);
- dag.push_back(end);
-
- /* Connect entry tasks to 'root', and exit tasks to 'end'*/
- for (const auto& a : dag) {
- if (a->dependencies_solved() && a != root) {
- XBT_DEBUG("Activity '%s' has no dependencies. Add dependency from 'root'", a->get_cname());
- root->add_successor(a);
- }
-
- if (a->is_waited_by() == 0 && a != end) {
- XBT_DEBUG("Activity '%s' has no successors. Add dependency to 'end'", a->get_cname());
- a->add_successor(end);
- }
- }
- agclose(dag_dot);
- fclose(in_file);
-
- if (not check_for_cycle(dag)) {
- std::string base = simgrid::xbt::Path(filename).get_base_name();
- XBT_ERROR("The DOT described in %s is not a DAG. It contains a cycle.", base.c_str());
- for (const auto& a : dag)
- a->destroy();
- dag.clear();
- }
-
- return dag;
-}
-#else
-std::vector<ActivityPtr> create_DAG_from_dot(const std::string& filename)
-{
- xbt_die("create_DAG_from_dot() is not usable because graphviz was not found.\n"
- "Please install graphviz, graphviz-dev, and libgraphviz-dev (and erase CMakeCache.txt) before recompiling.");
-}
-#endif
-} // namespace s4u
-} // namespace simgrid
-
-void STag_dax__adag()
-{
- try {
- double version = std::stod(std::string(A_dax__adag_version));
- xbt_assert(version == 2.1, "Expected version 2.1 in <adag> tag, got %f. Fix the parser or your file", version);
- } catch (const std::invalid_argument&) {
- throw std::invalid_argument(std::string("Parse error: ") + A_dax__adag_version + " is not a double");
- }
-}
-
-void STag_dax__job()
-{
- try {
- double runtime = std::stod(std::string(A_dax__job_runtime));
-
- std::string name = std::string(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);
- simgrid::s4u::current_job = simgrid::s4u::Exec::init()->set_name(name)->set_flops_amount(runtime)->vetoable_start();
- simgrid::s4u::jobs.insert({A_dax__job_id, simgrid::s4u::current_job});
- simgrid::s4u::result.push_back(simgrid::s4u::current_job);
- } catch (const std::invalid_argument&) {
- throw std::invalid_argument(std::string("Parse error: ") + A_dax__job_runtime + " is not a double");
- }
-}
-
-void STag_dax__uses()
-{
- double size;
- try {
- size = std::stod(std::string(A_dax__uses_size));
- } catch (const std::invalid_argument&) {
- throw std::invalid_argument(std::string("Parse error: ") + A_dax__uses_size + " is not a double");
- }
- bool 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"));
- auto it = simgrid::s4u::files.find(A_dax__uses_file);
- simgrid::s4u::CommPtr file;
- if (it == simgrid::s4u::files.end()) {
- file = simgrid::s4u::Comm::sendto_init()->set_name(A_dax__uses_file)->set_payload_size(size);
- simgrid::s4u::files[A_dax__uses_file] = file.get();
- } else {
- file = it->second;
- if (file->get_remaining() < size || file->get_remaining() > size) {
- XBT_WARN("Ignore file %s size redefinition from %.0f to %.0f", A_dax__uses_file, file->get_remaining(), size);
- }
- }
- if (is_input) {
- file->add_successor(simgrid::s4u::current_job);
- } else {
- simgrid::s4u::current_job->add_successor(file);
- if (file->get_dependencies().size() > 1) {
- XBT_WARN("File %s created at more than one location...", file->get_cname());
- }
- }
-}
-
-static simgrid::s4u::ExecPtr current_child;
-void STag_dax__child()
-{
- auto job = simgrid::s4u::jobs.find(A_dax__child_ref);
- if (job != simgrid::s4u::jobs.end()) {
- current_child = job->second;
- } else {
- throw std::out_of_range(std::string("Parse error on line ") + std::to_string(dax_lineno) +
- ": Asked to add dependencies to the non-existent " + A_dax__child_ref + "task");
- }
-}
-
-void ETag_dax__child()
-{
- current_child = nullptr;
-}
-
-void STag_dax__parent()
-{
- auto job = simgrid::s4u::jobs.find(A_dax__parent_ref);
- if (job != simgrid::s4u::jobs.end()) {
- auto parent = job->second;
- parent->add_successor(current_child);
- XBT_DEBUG("Control-flow dependency from %s to %s", current_child->get_cname(), parent->get_cname());
- } else {
- throw std::out_of_range(std::string("Parse error on line ") + std::to_string(dax_lineno) +
- ": Asked to add a dependency from " + current_child->get_name() + " to " +
- A_dax__parent_ref + ", but " + A_dax__parent_ref + " does not exist");
- }
-}
-
-void ETag_dax__adag()
-{
- XBT_DEBUG("See </adag>");
-}
-
-void ETag_dax__job()
-{
- simgrid::s4u::current_job = nullptr;
- XBT_DEBUG("See </job>");
-}
-
-void ETag_dax__parent()
-{
- XBT_DEBUG("See </parent>");
-}
-
-void ETag_dax__uses()
-{
- XBT_DEBUG("See </uses>");
-}