X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/29d98d1ceb682fbc4c734a92353be4b0bcd5d17b..479eed15b29c7f0ae552932aec832e80b2f2bb0c:/src/surf/host_clm03.cpp diff --git a/src/surf/host_clm03.cpp b/src/surf/host_clm03.cpp index e11489fd3a..5fc159498c 100644 --- a/src/surf/host_clm03.cpp +++ b/src/surf/host_clm03.cpp @@ -1,75 +1,119 @@ -/* Copyright (c) 2013-2015. The SimGrid Team. - * All rights reserved. */ +/* Copyright (c) 2013-2023. 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 +#include +#include +#include -#include +#include "simgrid/sg_config.hpp" +#include "src/kernel/EngineImpl.hpp" +#include "src/kernel/resource/NetworkModel.hpp" +#include "src/surf/host_clm03.hpp" -#include "host_clm03.hpp" +XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(res_host); -#include "cpu_cas01.hpp" -#include "simgrid/sg_config.h" +SIMGRID_REGISTER_HOST_MODEL( + default, "Default host model. Currently, CPU:Cas01, network:LV08 (with cross traffic enabled), and disk:S19", []() { + simgrid::config::set_default("network/crosstraffic", true); + auto host_model = std::make_shared("Host_CLM03"); + auto* engine = simgrid::kernel::EngineImpl::get_instance(); + engine->add_model(host_model); + engine->get_netzone_root()->set_host_model(host_model); -XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_host); + simgrid_cpu_models().init_from_flag_value(); + simgrid_disk_models().init_from_flag_value(); + simgrid_network_models().init_from_flag_value(); + }); -/************* - * CallBacks * - *************/ +namespace simgrid::kernel::resource { -/********* - * Model * - *********/ - -void surf_host_model_init_current_default() +double HostCLM03Model::next_occurring_event(double /*now*/) { - surf_host_model = new simgrid::surf::HostCLM03Model(); - xbt_cfg_setdefault_boolean("network/crosstraffic", "yes"); - surf_cpu_model_init_Cas01(); - surf_network_model_init_LegrandVelho(); - - all_existing_models->push_back(surf_host_model); + /* nothing specific to be done here + * EngineImpl::solve already calls all the models next_occurring_event properly */ + return -1.0; } -void surf_host_model_init_compound() +void HostCLM03Model::update_actions_state(double /*now*/, double /*delta*/) { - xbt_assert(surf_cpu_model_pm, "No CPU model defined yet!"); - xbt_assert(surf_network_model, "No network model defined yet!"); - - surf_host_model = new simgrid::surf::HostCLM03Model(); - all_existing_models->push_back(surf_host_model); + /* I've no action to update */ } -namespace simgrid { -namespace surf { - -double HostCLM03Model::nextOccuringEvent(double now){ - ignoreEmptyVmInPmLMM(); - - double min_by_cpu = surf_cpu_model_pm->nextOccuringEvent(now); - double min_by_net = surf_network_model->nextOccuringEventIsIdempotent() ? surf_network_model->nextOccuringEvent(now) : -1; - double min_by_sto = surf_storage_model->nextOccuringEvent(now); - - XBT_DEBUG("model %p, %s min_by_cpu %f, %s min_by_net %f, %s min_by_sto %f", - this, typeid(surf_cpu_model_pm).name(), min_by_cpu, - typeid(surf_network_model).name(), min_by_net, - typeid(surf_storage_model).name(), min_by_sto); - - double res = std::max({min_by_cpu, min_by_net, min_by_sto}); - if (min_by_cpu >= 0.0 && min_by_cpu < res) - res = min_by_cpu; - if (min_by_net >= 0.0 && min_by_net < res) - res = min_by_net; - if (min_by_sto >= 0.0 && min_by_sto < res) - res = min_by_sto; - return res; +/* Helper function for executeParallelTask */ +static inline double has_cost(const double* array, size_t pos) +{ + if (array) + return array[pos]; + return -1.0; } -void HostCLM03Model::updateActionsState(double /*now*/, double /*delta*/){ - /* I won't do what you tell me */ +Action* HostCLM03Model::io_stream(s4u::Host* src_host, DiskImpl* src_disk, s4u::Host* dst_host, DiskImpl* dst_disk, + double size) +{ + auto net_model = src_host->get_englobing_zone()->get_network_model(); + auto system = net_model->get_maxmin_system(); + auto* action = net_model->communicate(src_host, dst_host, size, -1, true); + + // We don't want to apply the network model bandwidth factor to the I/O constraints + double bw_factor = net_model->get_bandwidth_factor(); + if (src_disk != nullptr){ + //FIXME: if the stream starts from a disk, we might not want to pay the network latency + system->expand(src_disk->get_constraint(), action->get_variable(), bw_factor); + system->expand(src_disk->get_read_constraint(), action->get_variable(), bw_factor); + } + if (dst_disk != nullptr){ + system->expand(dst_disk->get_constraint(), action->get_variable(), bw_factor); + system->expand(dst_disk->get_write_constraint(), action->get_variable(), bw_factor); + } + + return action; } +Action* HostCLM03Model::execute_parallel(const std::vector& host_list, const double* flops_amount, + const double* bytes_amount, double rate) +{ + Action* action = nullptr; + auto net_model = host_list[0]->get_netpoint()->get_englobing_zone()->get_network_model(); + if ((host_list.size() == 1) && (has_cost(bytes_amount, 0) <= 0) && (has_cost(flops_amount, 0) > 0)) { + action = host_list[0]->get_cpu()->execution_start(flops_amount[0], rate); + } else if ((host_list.size() == 1) && (has_cost(flops_amount, 0) <= 0)) { + action = net_model->communicate(host_list[0], host_list[0], bytes_amount[0], rate, false); + } else if ((host_list.size() == 2) && (has_cost(flops_amount, 0) <= 0) && (has_cost(flops_amount, 1) <= 0)) { + int nb = 0; + double value = 0.0; + + for (size_t i = 0; i < host_list.size() * host_list.size(); i++) { + if (has_cost(bytes_amount, i) > 0.0) { + nb++; + value = has_cost(bytes_amount, i); + } + } + if (nb == 1) { + action = net_model->communicate(host_list[0], host_list[1], value, rate, false); + } else if (nb == 0) { + xbt_die("Cannot have a communication with no flop to exchange in this model. You should consider using the " + "ptask model"); + } else { + xbt_die("Cannot have a communication that is not a simple point-to-point in this model. You should consider " + "using the ptask model"); + } + } else { + xbt_die( + "This model only accepts one of the following. You should consider using the ptask model for the other cases.\n" + " - execution with one host only and no communication\n" + " - Self-comms with one host only\n" + " - Communications with two hosts and no computation"); + } + return action; } + +Action* HostCLM03Model::execute_thread(const s4u::Host* host, double flops_amount, int thread_count) +{ + auto cpu = host->get_cpu(); + /* Create a single action whose cost is thread_count * flops_amount and that requests thread_count cores. */ + return cpu->execution_start(thread_count * flops_amount, thread_count, -1); } + +} // namespace simgrid::kernel::resource