#include "simgrid/s4u/Comm.hpp"
#include "simgrid/s4u/Engine.hpp"
#include "simgrid/s4u/Exec.hpp"
-#include "simgrid/simdag.h"
#include "src/internal_config.h"
#include "xbt/file.hpp"
#include <algorithm>
} // namespace s4u
} // namespace simgrid
-xbt_dynar_t SD_dotload_generic(const char* filename, bool sequential, bool schedule);
-
-static void dot_task_p_free(void *task) {
- (*(SD_task_t*)task)->destroy();
-}
-
-/** @brief loads a DOT file describing a DAG
- *
- * See http://www.graphviz.org/doc/info/lang.html for more details.
- * The size attribute of a node describes:
- * - for a compute task: the amount of flops to execute
- * - for a communication task : the amount of bytes to transfer
- * If this attribute is omitted, the default value is zero.
- */
-xbt_dynar_t SD_dotload(const char *filename) {
- return SD_dotload_generic(filename, true, false);
-}
-
-xbt_dynar_t SD_PTG_dotload(const char * filename) {
- return SD_dotload_generic(filename, false, false);
-}
-
-xbt_dynar_t SD_dotload_with_sched(const char *filename) {
- return SD_dotload_generic(filename, true, true);
-}
-
-xbt_dynar_t SD_dotload_generic(const char* filename, bool sequential, bool schedule)
-{
- xbt_assert(filename, "Unable to use a null file descriptor\n");
- FILE *in_file = fopen(filename, "r");
- xbt_assert(in_file != nullptr, "Failed to open file: %s", filename);
-
- SD_task_t root;
- SD_task_t end;
- SD_task_t task;
- std::vector<SD_task_t>* computer;
- std::unordered_map<std::string, std::vector<SD_task_t>*> computers;
- bool schedule_success = true;
-
- std::unordered_map<std::string, SD_task_t> jobs;
- xbt_dynar_t result = xbt_dynar_new(sizeof(SD_task_t), dot_task_p_free);
-
- Agraph_t * dag_dot = agread(in_file, NIL(Agdisc_t *));
-
- /* 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 (jobs.find(name) == jobs.end()) {
- if (sequential) {
- XBT_DEBUG("See <job id=%s amount =%.0f>", name, amount);
- task = simgrid::sd::Task::create_comp_seq(name, amount, nullptr);
- } else {
- double alpha = atof(agget(node, (char *) "alpha"));
- XBT_DEBUG("See <job id=%s amount =%.0f alpha = %.3f>", name, amount, alpha);
- task = simgrid::sd::Task::create_comp_par_amdahl(name, amount, nullptr, alpha);
- }
-
- jobs.insert({std::string(name), task});
-
- if (strcmp(name,"root") && strcmp(name,"end"))
- xbt_dynar_push(result, &task);
-
- if (sequential && ((schedule && schedule_success) || XBT_LOG_ISENABLED(sd_dotparse, xbt_log_priority_verbose))) {
- /* try to take the information to schedule the task only if all is right*/
- char *char_performer = agget(node, (char *) "performer");
- char *char_order = agget(node, (char *) "order");
- /* Tasks will execute on in a given "order" on a given set of "performer" hosts */
- int performer = ((not char_performer || not strcmp(char_performer, "")) ? -1 : atoi(char_performer));
- int order = ((not char_order || not strcmp(char_order, "")) ? -1 : atoi(char_order));
-
- if ((performer != -1 && order != -1) && performer < static_cast<int>(sg_host_count())) {
- /* required parameters are given and less performers than hosts are required */
- XBT_DEBUG("Task '%s' is scheduled on workstation '%d' in position '%d'", task->get_cname(), performer, order);
- auto comp = computers.find(char_performer);
- if (comp != computers.end()) {
- computer = comp->second;
- } else {
- computer = new std::vector<SD_task_t>();
- computers.insert({char_performer, computer});
- }
- if (static_cast<unsigned int>(order) < computer->size()) {
- const_SD_task_t task_test = computer->at(order);
- if (task_test && task_test != task) {
- /* the user gave the same order to several tasks */
- schedule_success = false;
- XBT_VERB("Task '%s' wants to start on performer '%s' at the same position '%s' as task '%s'",
- task_test->get_cname(), char_performer, char_order, task->get_cname());
- continue;
- }
- } else
- computer->resize(order);
-
- computer->insert(computer->begin() + order, task);
- } else {
- /* one of required parameters is not given */
- schedule_success = false;
- XBT_VERB("The schedule is ignored, task '%s' can not be scheduled on %d hosts", task->get_cname(), performer);
- }
- }
- } else {
- XBT_WARN("Task '%s' is defined more than once", name);
- }
- }
-
- /*Check if 'root' and 'end' nodes have been explicitly declared. If not, create them. */
- if (jobs.find("root") == jobs.end())
- root = (sequential ? simgrid::sd::Task::create_comp_seq("root", 0, nullptr)
- : simgrid::sd::Task::create_comp_par_amdahl("root", 0, nullptr, 0));
- else
- root = jobs.at("root");
-
- root->set_state(SD_SCHEDULABLE); /* by design the root task is always SCHEDULABLE */
- xbt_dynar_insert_at(result, 0, &root); /* Put it at the beginning of the dynar */
-
- if (jobs.find("end") == jobs.end())
- end = (sequential ? simgrid::sd::Task::create_comp_seq("end", 0, nullptr)
- : simgrid::sd::Task::create_comp_par_amdahl("end", 0, nullptr, 0));
- else
- end = jobs.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"));
-
- SD_task_t src = jobs.at(src_name);
- SD_task_t dst = jobs.at(dst_name);
-
- if (size > 0) {
- std::string name = std::string(src_name) + "->" + dst_name;
- XBT_DEBUG("See <transfer id=%s amount = %.0f>", name.c_str(), size);
- if (jobs.find(name) == jobs.end()) {
- if (sequential)
- task = simgrid::sd::Task::create_comm_e2e(name.c_str(), size, nullptr);
- else
- task = simgrid::sd::Task::create_comm_par_mxn_1d_block(name.c_str(), size, nullptr);
- SD_task_dependency_add(src, task);
- SD_task_dependency_add(task, dst);
- jobs.insert({name, task});
- xbt_dynar_push(result, &task);
- } else {
- XBT_WARN("Task '%s' is defined more than once", name.c_str());
- }
- } else {
- SD_task_dependency_add(src, dst);
- }
- }
- }
-
- XBT_DEBUG("All tasks have been created, put %s at the end of the dynar", end->get_cname());
- xbt_dynar_push(result, &end);
-
- /* Connect entry tasks to 'root', and exit tasks to 'end'*/
- unsigned i;
- xbt_dynar_foreach (result, i, task){
- if (task->has_unsolved_dependencies() == 0 && task != root) {
- XBT_DEBUG("Task '%s' has no source. Add dependency from 'root'", task->get_cname());
- SD_task_dependency_add(root, task);
- }
-
- if (task->is_waited_by() == 0 && task != end) {
- XBT_DEBUG("Task '%s' has no destination. Add dependency to 'end'", task->get_cname());
- SD_task_dependency_add(task, end);
- }
- }
-
- agclose(dag_dot);
- fclose(in_file);
-
- if(schedule){
- if (schedule_success) {
- std::vector<simgrid::s4u::Host*> hosts = simgrid::s4u::Engine::get_instance()->get_all_hosts();
-
- for (auto const& elm : computers) {
- SD_task_t previous_task = nullptr;
- for (auto const& cur_task : *elm.second) {
- /* add dependency between the previous and the task to avoid parallel execution */
- if (cur_task) {
- if (previous_task && not SD_task_dependency_exists(previous_task, cur_task))
- SD_task_dependency_add(previous_task, cur_task);
-
- cur_task->schedulev({hosts[std::stoi(elm.first)]});
- previous_task = cur_task;
- }
- }
- delete elm.second;
- }
- } else {
- XBT_WARN("The scheduling is ignored");
- for (auto const& elm : computers)
- delete elm.second;
- xbt_dynar_free(&result);
- result = nullptr;
- }
- }
-
- if (result && not acyclic_graph_detail(result)) {
- 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());
- xbt_dynar_free(&result);
- result = nullptr;
- }
- return result;
-}
#else
namespace simgrid {
namespace s4u {
} // namespace s4u
} // namespace simgrid
-xbt_dynar_t SD_dotload(const char *filename) {
- xbt_die("SD_dotload_generic() is not usable because graphviz was not found.\n"
- "Please install graphviz, graphviz-dev, and libgraphviz-dev (and erase CMakeCache.txt) before recompiling.");
-}
-xbt_dynar_t SD_dotload_with_sched(const char *filename) {
- return SD_dotload(filename);
-}
-xbt_dynar_t SD_PTG_dotload(const char * filename) {
- return SD_dotload(filename);
-}
#endif
