/* Copyright (c) 2006-2020. 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/log.h"

XBT_LOG_NEW_DEFAULT_CATEGORY(sd_typed_tasks_test, "Logging specific to this SimDag example");

int main(int argc, char **argv)
{
  unsigned int ctr;
  SD_task_t task;

  double computation_amount[4];
  double communication_amount[16] = { 0 };
  sg_host_t host_list[4];

  SD_init(&argc, argv);

  xbt_assert(argc > 1, "Usage: %s platform_file\n\nExample: %s two_clusters.xml", argv[0], argv[0]);
  SD_create_environment(argv[1]);

  sg_host_t *hosts = sg_host_list();

  /* creation of some typed tasks and their dependencies */
  SD_task_t seq_comp1 = SD_task_create_comp_seq("Seq. comp. 1", NULL, 1e9);
  SD_task_t e2e_comm = SD_task_create_comm_e2e("E2E comm.", NULL, 1e7);
  SD_task_t seq_comp2 = SD_task_create_comp_seq("Seq. comp 2.", NULL, 1e9);
  SD_task_t par_comp1 = SD_task_create_comp_par_amdahl("Par. Comp. 1", NULL, 1e9, 0.2);
  SD_task_t redist = SD_task_create_comm_par_mxn_1d_block("MxN redist", NULL, 1.2e8);
  SD_task_t par_comp2 = SD_task_create_comp_par_amdahl("Par. Comp. 2", NULL, 3e8, 0.5);
  SD_task_t par_comp3 = SD_task_create("Par. Comp. 3", NULL, 1e9);

  SD_task_dependency_add(seq_comp1, e2e_comm);
  SD_task_dependency_add(e2e_comm, seq_comp2);

  SD_task_dependency_add(par_comp1, redist);
  SD_task_dependency_add(redist, par_comp2);

  SD_task_schedulel(seq_comp1, 1, hosts[8]);
  SD_task_schedulel(seq_comp2, 1, hosts[9]);

  SD_task_schedulev(par_comp1, 4, hosts);
  SD_task_schedulev(par_comp2, 3, hosts);

  /* Let's unschedule these tasks and test the auto-scheduling in the opposite way. */
  SD_task_unschedule(par_comp1);
  SD_task_unschedule(par_comp2);
  SD_task_unschedule(redist); /* yes, it was scheduled too */

  SD_task_schedulev(par_comp2, 3, hosts);
  SD_task_schedulev(par_comp1, 4, hosts);

  for (int i=0;i<4;i++){
    host_list[i]=hosts[i+4];
    /* Apply Amdahl's law manually assuming a 20% serial part */
    computation_amount[i]=(0.2 + (1 - 0.2)/4) * SD_task_get_amount(par_comp3);
  }

  SD_task_schedule(par_comp3, 4, host_list, computation_amount, communication_amount, -1);

  xbt_dynar_t changed_tasks = xbt_dynar_new(sizeof(SD_task_t), NULL);
  SD_simulate_with_update(-1.0, changed_tasks);
  xbt_dynar_foreach(changed_tasks, ctr, task) {
    XBT_INFO("Task '%s' start time: %f, finish time: %f", SD_task_get_name(task), SD_task_get_start_time(task),
             SD_task_get_finish_time(task));
  }

  xbt_dynar_foreach(changed_tasks, ctr, task)
    SD_task_destroy(task);
  xbt_dynar_free_container(&changed_tasks);

  xbt_free(hosts);
  return 0;
}
