1 /* Copyright (c) 2013-2020. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
6 #include "src/surf/host_clm03.hpp"
7 #include "simgrid/sg_config.hpp"
8 #include "surf/surf.hpp"
10 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_host);
12 void surf_host_model_init_current_default()
14 surf_host_model = new simgrid::surf::HostCLM03Model();
15 simgrid::config::set_default<bool>("network/crosstraffic", true);
16 surf_cpu_model_init_Cas01();
17 surf_network_model_init_LegrandVelho();
20 void surf_host_model_init_compound()
22 xbt_assert(surf_cpu_model_pm, "No CPU model defined yet!");
23 xbt_assert(surf_network_model, "No network model defined yet!");
24 surf_host_model = new simgrid::surf::HostCLM03Model();
29 HostCLM03Model::HostCLM03Model()
31 all_existing_models.push_back(this);
34 double HostCLM03Model::next_occurring_event(double now)
36 double min_by_cpu = surf_cpu_model_pm->next_occurring_event(now);
38 surf_network_model->next_occurring_event_is_idempotent() ? surf_network_model->next_occurring_event(now) : -1;
39 double min_by_sto = surf_storage_model->next_occurring_event(now);
40 double min_by_dsk = surf_disk_model->next_occurring_event(now);
42 XBT_DEBUG("model %p, %s min_by_cpu %f, %s min_by_net %f, %s min_by_sto %f, %s min_by_dsk %f", this,
43 typeid(surf_cpu_model_pm).name(), min_by_cpu, typeid(surf_network_model).name(), min_by_net,
44 typeid(surf_storage_model).name(), min_by_sto, typeid(surf_disk_model).name(), min_by_dsk);
46 double res = min_by_cpu;
47 if (res < 0 || (min_by_net >= 0.0 && min_by_net < res))
49 if (res < 0 || (min_by_sto >= 0.0 && min_by_sto < res))
51 if (res < 0 || (min_by_dsk >= 0.0 && min_by_dsk < res))
56 void HostCLM03Model::update_actions_state(double /*now*/, double /*delta*/)
58 /* I've no action to update */
61 /* Helper function for executeParallelTask */
62 static inline double has_cost(const double* array, size_t pos)
69 kernel::resource::Action* HostCLM03Model::execute_parallel(const std::vector<s4u::Host*>& host_list,
70 const double* flops_amount, const double* bytes_amount,
73 kernel::resource::Action* action = nullptr;
74 if ((host_list.size() == 1) && (has_cost(bytes_amount, 0) <= 0) && (has_cost(flops_amount, 0) > 0)) {
75 action = host_list[0]->pimpl_cpu->execution_start(flops_amount[0]);
76 } else if ((host_list.size() == 1) && (has_cost(flops_amount, 0) <= 0)) {
77 action = surf_network_model->communicate(host_list[0], host_list[0], bytes_amount[0], rate);
78 } else if ((host_list.size() == 2) && (has_cost(flops_amount, 0) <= 0) && (has_cost(flops_amount, 1) <= 0)) {
82 for (size_t i = 0; i < host_list.size() * host_list.size(); i++) {
83 if (has_cost(bytes_amount, i) > 0.0) {
85 value = has_cost(bytes_amount, i);
89 action = surf_network_model->communicate(host_list[0], host_list[1], value, rate);
91 xbt_die("Cannot have a communication with no flop to exchange in this model. You should consider using the "
94 xbt_die("Cannot have a communication that is not a simple point-to-point in this model. You should consider "
95 "using the ptask model");
99 "This model only accepts one of the following. You should consider using the ptask model for the other cases.\n"
100 " - execution with one host only and no communication\n"
101 " - Self-comms with one host only\n"
102 " - Communications with two hosts and no computation");
108 } // namespace simgrid