--- /dev/null
+/* Copyright (c) 2017. 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/plugins/energy.h"
+#include <simgrid/s4u.hpp>
+#include <xbt/ex.hpp>
+#include <xbt/log.h>
+
+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 */
+ int hosts_count = sg_host_count();
+ simgrid::s4u::Host** hosts = sg_host_list();
+
+ 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, 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, 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_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, 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, computation_amounts, communication_amounts);
+
+ XBT_INFO("Finally, trick the ptask to do a 'remote execution', on host %s", hosts[1]->getCname());
+ 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!");
+ std::free(hosts);
+}
+
+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.loadPlatform(argv[1]);
+
+ /* Pick a process, no matter which, from the platform file */
+ simgrid::s4u::Actor::createActor("test", simgrid::s4u::Host::by_name("MyHost1"), runner);
+
+ e.run();
+ XBT_INFO("Simulation done.");
+ return 0;
+}
--- /dev/null
+#! ./tesh
+
+$ ${bindir:=.}/s4u-energy-ptask$EXEEXT ${srcdir:=.}/../platforms/energy_platform.xml --energy --cfg=host/model:ptask_L07 "--log=root.fmt:[%10.6r]%e(%i:%P@%h)%e%m%n"
+> [ 0.000000] (0:maestro@) Configuration change: Set 'host/model' to 'ptask_L07'
+> [ 0.000000] (0:maestro@) Switching to the L07 model to handle parallel tasks.
+> [ 0.000000] (1:test@MyHost1) First, build a classical parallel task, with 1 Gflop to execute on each node, and 10MB to exchange between each pair
+> [300.000000] (1:test@MyHost1) We can do the same with a timeout of one second enabled.
+> [301.000000] (1:test@MyHost1) Then, build a parallel task involving only computations and no communication (1 Gflop per node)
+> [311.000000] (1:test@MyHost1) Then, build a parallel task with no computation nor communication (synchro only)
+> [311.000000] (1:test@MyHost1) Finally, trick the ptask to do a 'remote execution', on host MyHost2
+> [321.000000] (1:test@MyHost1) Goodbye now!
+> [321.000000] (0:maestro@) Total energy consumption: 157960.888889 Joules (used hosts: 157960.888889 Joules; unused/idle hosts: 0.000000)
+> [321.000000] (0:maestro@) Simulation done.
+> [321.000000] (0:maestro@) Energy consumption of host MyHost1: 30560.888889 Joules
+> [321.000000] (0:maestro@) Energy consumption of host MyHost2: 64200.000000 Joules
+> [321.000000] (0:maestro@) Energy consumption of host MyHost3: 63200.000000 Joules
simcall_execution_wait(s);
}
-void execute(double flops,double priority)
+void execute(double flops, double priority)
{
smx_activity_t s = simcall_execution_start(nullptr,flops,1 / priority/*priority*/,0./*bound*/);
simcall_execution_wait(s);
}
+void parallel_execute(int host_nb, sg_host_t* host_list, double* flops_amount, double* bytes_amount, double timeout)
+{
+ smx_activity_t s =
+ simcall_execution_parallel_start(nullptr, host_nb, host_list, flops_amount, bytes_amount, -1, timeout);
+ simcall_execution_wait(s);
+}
+
void parallel_execute(int host_nb, sg_host_t* host_list, double* flops_amount, double* bytes_amount)
{
smx_activity_t s = simcall_execution_parallel_start(nullptr, host_nb, host_list, flops_amount, bytes_amount, -1, -1);