X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/e94c2a7fc81a82998524aa55db075be69990d4ea..0bfafcab47ae9cd7856bd8d129404c33079d6afe:/examples/s4u/exec-ptask/s4u-exec-ptask.cpp

diff --git a/examples/s4u/exec-ptask/s4u-exec-ptask.cpp b/examples/s4u/exec-ptask/s4u-exec-ptask.cpp
deleted file mode 100644
index e5b9b6b98a..0000000000
--- a/examples/s4u/exec-ptask/s4u-exec-ptask.cpp
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@@ -1,110 +0,0 @@
-/* Copyright (c) 2017-2018. 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. */
-
-/* Parallel tasks are convenient abstractions of parallel computational kernels that span over several machines.
- * To create a new one, you have to provide several things:
- *   - a vector of hosts on which the task will execute
- *   - a vector of values, the amount of computation for each of the hosts (in flops)
- *   - a matrix of values, the amount of communication between each pair of hosts (in bytes)
- *
- * Each of these operation will be processed at the same relative speed.
- * This means that at some point in time, all sub-executions and all sub-communications will be at 20% of completion.
- * Also, they will all complete at the exact same time.
- *
- * This is obviously a simplistic abstraction, but this is very handful in a large amount of situations.
- *
- * Please note that you must have the LV07 platform model enabled to use such constructs.
- */
-
-#include "simgrid/plugins/energy.h"
-#include <simgrid/s4u.hpp>
-
-XBT_LOG_NEW_DEFAULT_CATEGORY(s4u_energyptask, "Messages specific for this s4u example");
-
-static void runner()
-{
-  /* Retrieve the list of all hosts as an array of hosts */
-  std::vector<simgrid::s4u::Host*> hosts = simgrid::s4u::Engine::get_instance()->get_all_hosts();
-  int hosts_count = hosts.size();
-
-  XBT_INFO("First, build a classical parallel task, with 1 Gflop to execute on each node, "
-           "and 10MB to exchange between each pair");
-  double* computation_amounts   = new double[hosts_count]();
-  double* communication_amounts = new double[hosts_count * hosts_count]();
-
-  for (int i               = 0; i < hosts_count; i++)
-    computation_amounts[i] = 1e9; // 1 Gflop
-
-  for (int i = 0; i < hosts_count; i++)
-    for (int j = i + 1; j < hosts_count; j++)
-      communication_amounts[i * hosts_count + j] = 1e7; // 10 MB
-
-  simgrid::s4u::this_actor::parallel_execute(hosts_count, hosts.data(), computation_amounts, communication_amounts);
-
-  XBT_INFO("We can do the same with a timeout of one second enabled.");
-  computation_amounts   = new double[hosts_count]();
-  communication_amounts = new double[hosts_count * hosts_count]();
-
-  for (int i               = 0; i < hosts_count; i++)
-    computation_amounts[i] = 1e9; // 1 Gflop
-
-  for (int i = 0; i < hosts_count; i++)
-    for (int j = i + 1; j < hosts_count; j++)
-      communication_amounts[i * hosts_count + j] = 1e7; // 10 MB
-
-  try {
-    simgrid::s4u::this_actor::parallel_execute(hosts_count, hosts.data(), computation_amounts, communication_amounts,
-                                               1.0 /* timeout (in seconds)*/);
-    XBT_WARN("Woops, this did not timeout as expected... Please report that bug.");
-  } catch (xbt_ex& e) {
-    /* Do nothing this exception on timeout was expected */
-    XBT_DEBUG("Caught expected exception: %s", e.what());
-  }
-
-  XBT_INFO("Then, build a parallel task involving only computations and no communication (1 Gflop per node)");
-  computation_amounts = new double[hosts_count]();
-  for (int i               = 0; i < hosts_count; i++)
-    computation_amounts[i] = 1e9; // 1 Gflop
-  simgrid::s4u::this_actor::parallel_execute(hosts_count, hosts.data(), computation_amounts, nullptr /* no comm */);
-
-  XBT_INFO("Then, build a parallel task involving only heterogeneous computations and no communication");
-  computation_amounts = new double[hosts_count]();
-  for (int i               = 0; i < hosts_count; i++)
-    computation_amounts[i] = 5 * (i + 1) * 1e8; // 500Mflop, 1Gflop, 1.5Gflop
-  simgrid::s4u::this_actor::parallel_execute(hosts_count, hosts.data(), computation_amounts, nullptr /* no comm */);
-
-  XBT_INFO("Then, build a parallel task with no computation nor communication (synchro only)");
-  computation_amounts   = new double[hosts_count]();
-  communication_amounts = new double[hosts_count * hosts_count]();
-  simgrid::s4u::this_actor::parallel_execute(hosts_count, hosts.data(), computation_amounts, communication_amounts);
-
-  XBT_INFO("Finally, trick the ptask to do a 'remote execution', on host %s", hosts[1]->get_cname());
-  computation_amounts = new double[1]{1e9};
-
-  simgrid::s4u::Host* remote[] = {hosts[1]};
-  simgrid::s4u::this_actor::parallel_execute(1, remote, computation_amounts, nullptr);
-
-  XBT_INFO("Goodbye now!");
-}
-
-int main(int argc, char* argv[])
-{
-  simgrid::s4u::Engine e(&argc, argv);
-
-  xbt_assert(argc <= 3, "1Usage: %s <platform file> [--energy]", argv[0]);
-  xbt_assert(argc >= 2, "2Usage: %s <platform file> [--energy]", argv[0]);
-
-  if (argc == 3 && argv[2][2] == 'e')
-    sg_host_energy_plugin_init();
-
-  e.load_platform(argv[1]);
-
-  /* Pick a process, no matter which, from the platform file */
-  simgrid::s4u::Actor::create("test", simgrid::s4u::Host::by_name("MyHost1"), runner);
-
-  e.run();
-  XBT_INFO("Simulation done.");
-  return 0;
-}