X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/e18a7b043d161b29d0bf3f5743cb7a570241576a..f2aaadd437ac30adad539d969164098b50cd2338:/src/surf/surf_c_bindings.cpp diff --git a/src/surf/surf_c_bindings.cpp b/src/surf/surf_c_bindings.cpp index 61e00b91fd..771f6a8f78 100644 --- a/src/surf/surf_c_bindings.cpp +++ b/src/surf/surf_c_bindings.cpp @@ -1,12 +1,18 @@ -/* Copyright (c) 2013-2017. The SimGrid Team. All rights reserved. */ +/* Copyright (c) 2013-2021. 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/s4u/Engine.hpp" -#include "src/instr/instr_private.h" +#include "src/include/surf/surf.hpp" +#include "src/instr/instr_private.hpp" +#include "src/kernel/EngineImpl.hpp" +#include "src/kernel/resource/DiskImpl.hpp" +#include "src/kernel/resource/profile/FutureEvtSet.hpp" #include "src/plugins/vm/VirtualMachineImpl.hpp" +#include + XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_kernel); /********* @@ -17,107 +23,134 @@ extern double NOW; void surf_presolve() { - double next_event_date = -1.0; - tmgr_trace_event_t event = nullptr; - double value = -1.0; - simgrid::surf::Resource *resource = nullptr; - - XBT_DEBUG ("Consume all trace events occurring before the starting time."); - while ((next_event_date = future_evt_set->next_date()) != -1.0) { + XBT_DEBUG("Consume all trace events occurring before the starting time."); + double next_event_date; + while ((next_event_date = simgrid::kernel::profile::future_evt_set.next_date()) != -1.0) { if (next_event_date > NOW) break; - while ((event = future_evt_set->pop_leq(next_event_date, &value, &resource))) { + double value = -1.0; + simgrid::kernel::resource::Resource* resource = nullptr; + while (auto* event = simgrid::kernel::profile::future_evt_set.pop_leq(next_event_date, &value, &resource)) { if (value >= 0) resource->apply_event(event, value); } } - XBT_DEBUG ("Set every models in the right state by updating them to 0."); - for (auto const& model : *all_existing_models) - model->updateActionsState(NOW, 0.0); + XBT_DEBUG("Set every models in the right state by updating them to 0."); + for (auto const& model : simgrid::kernel::EngineImpl::get_instance()->get_all_models()) + model->update_actions_state(NOW, 0.0); +} + +/** + * @brief Auxiliary function to get next event from a list of models + * + * @param models list of models to explore (cpu, host, vm) (IN) + * @param time_delta delta for the next event (IN/OUT) + */ +static void surf_update_next_event(std::vector const& models, double& time_delta) +{ + for (auto* model : models) { + if (not model->next_occurring_event_is_idempotent()) { + continue; + } + double next_event = model->next_occurring_event(NOW); + if ((time_delta < 0.0 || next_event < time_delta) && next_event >= 0.0) { + time_delta = next_event; + } + } } double surf_solve(double max_date) { - double time_delta = -1.0; /* duration */ - double model_next_action_end = -1.0; - double value = -1.0; - simgrid::surf::Resource *resource = nullptr; - tmgr_trace_event_t event = nullptr; + double time_delta = -1.0; /* duration */ + double value = -1.0; + simgrid::kernel::resource::Resource* resource = nullptr; - if (max_date > 0.0) { - xbt_assert(max_date > NOW,"You asked to simulate up to %f, but that's in the past already", max_date); + if (max_date != -1.0) { + xbt_assert(max_date >= NOW, "You asked to simulate up to %f, but that's in the past already", max_date); time_delta = max_date - NOW; } /* Physical models MUST be resolved first */ XBT_DEBUG("Looking for next event in physical models"); - double next_event_phy = surf_host_model->nextOccuringEvent(NOW); - if ((time_delta < 0.0 || next_event_phy < time_delta) && next_event_phy >= 0.0) { - time_delta = next_event_phy; - } - if (surf_vm_model != nullptr) { - XBT_DEBUG("Looking for next event in virtual models"); - double next_event_virt = surf_vm_model->nextOccuringEvent(NOW); - if ((time_delta < 0.0 || next_event_virt < time_delta) && next_event_virt >= 0.0) - time_delta = next_event_virt; - } + auto engine = simgrid::kernel::EngineImpl::get_instance(); + surf_update_next_event(engine->get_model_list(simgrid::kernel::resource::Model::Type::HOST), time_delta); + + // following the order it was done in HostCLM03Model->next_occurring_event + XBT_DEBUG("Looking for next event in CPU models"); + surf_update_next_event(engine->get_model_list(simgrid::kernel::resource::Model::Type::CPU_PM), time_delta); + + XBT_DEBUG("Looking for next event in network models"); + surf_update_next_event(engine->get_model_list(simgrid::kernel::resource::Model::Type::NETWORK), time_delta); + XBT_DEBUG("Looking for next event in disk models"); + surf_update_next_event(engine->get_model_list(simgrid::kernel::resource::Model::Type::DISK), time_delta); + + XBT_DEBUG("Looking for next event in virtual models"); + surf_update_next_event(engine->get_model_list(simgrid::kernel::resource::Model::Type::VM), time_delta); + surf_update_next_event(engine->get_model_list(simgrid::kernel::resource::Model::Type::CPU_VM), time_delta); XBT_DEBUG("Min for resources (remember that NS3 don't update that value): %f", time_delta); XBT_DEBUG("Looking for next trace event"); - while (1) { // Handle next occurring events until none remains - double next_event_date = future_evt_set->next_date(); + while (true) { // Handle next occurring events until none remains + double next_event_date = simgrid::kernel::profile::future_evt_set.next_date(); XBT_DEBUG("Next TRACE event: %f", next_event_date); - if (not surf_network_model->nextOccuringEventIsIdempotent()) { // NS3, I see you - if (next_event_date!=-1.0 && time_delta!=-1.0) { - time_delta = MIN(next_event_date - NOW, time_delta); + for (auto* model : engine->get_model_list(simgrid::kernel::resource::Model::Type::NETWORK)) { + /* Skip all idempotent models, they were already treated above + * NS3 is the one to handled here */ + if (model->next_occurring_event_is_idempotent()) + continue; + + if (next_event_date != -1.0) { + time_delta = std::min(next_event_date - NOW, time_delta); } else { - time_delta = MAX(next_event_date - NOW, time_delta); // Get the positive component + time_delta = std::max(next_event_date - NOW, time_delta); // Get the positive component } XBT_DEBUG("Run the NS3 network at most %fs", time_delta); // run until min or next flow - model_next_action_end = surf_network_model->nextOccuringEvent(time_delta); + double model_next_action_end = model->next_occurring_event(time_delta); XBT_DEBUG("Min for network : %f", model_next_action_end); - if(model_next_action_end>=0.0) + if (model_next_action_end >= 0.0) time_delta = model_next_action_end; } - if (next_event_date < 0.0) { - XBT_DEBUG("no next TRACE event. Stop searching for it"); + if (next_event_date < 0.0 || (next_event_date > NOW + time_delta)) { + // next event may have already occurred or will after the next resource change, then bail out + XBT_DEBUG("no next usable TRACE event. Stop searching for it"); break; } - if ((time_delta == -1.0) || (next_event_date > NOW + time_delta)) - break; // next event occurs after the next resource change, bail out - XBT_DEBUG("Updating models (min = %g, NOW = %g, next_event_date = %g)", time_delta, NOW, next_event_date); - while ((event = future_evt_set->pop_leq(next_event_date, &value, &resource))) { - if (resource->isUsed() || (watched_hosts.find(resource->cname()) != watched_hosts.end())) { + while (auto* event = simgrid::kernel::profile::future_evt_set.pop_leq(next_event_date, &value, &resource)) { + if (resource->is_used() || (watched_hosts().find(resource->get_cname()) != watched_hosts().end())) { time_delta = next_event_date - NOW; - XBT_DEBUG("This event invalidates the next_occuring_event() computation of models. Next event set to %f", time_delta); + XBT_DEBUG("This event invalidates the next_occurring_event() computation of models. Next event set to %f", + time_delta); } - // FIXME: I'm too lame to update NOW live, so I change it and restore it so that the real update with surf_min will work + // FIXME: I'm too lame to update NOW live, so I change it and restore it so that the real update with surf_min + // will work double round_start = NOW; - NOW = next_event_date; + NOW = next_event_date; /* update state of the corresponding resource to the new value. Does not touch lmm. It will be modified if needed when updating actions */ - XBT_DEBUG("Calling update_resource_state for resource %s", resource->cname()); + XBT_DEBUG("Calling update_resource_state for resource %s", resource->get_cname()); resource->apply_event(event, value); NOW = round_start; } } - /* FIXME: Moved this test to here to avoid stopping simulation if there are actions running on cpus and all cpus are with availability = 0. - * This may cause an infinite loop if one cpu has a trace with periodicity = 0 and the other a trace with periodicity > 0. - * The options are: all traces with same periodicity(0 or >0) or we need to change the way how the events are managed */ + /* FIXME: Moved this test to here to avoid stopping simulation if there are actions running on cpus and all cpus are + * with availability = 0. This may cause an infinite loop if one cpu has a trace with periodicity = 0 and the other a + * trace with periodicity > 0. + * The options are: all traces with same periodicity(0 or >0) or we need to change the way how the events are managed + */ if (time_delta < 0) { XBT_DEBUG("No next event at all. Bail out now."); return -1.0; @@ -129,41 +162,10 @@ double surf_solve(double max_date) NOW = NOW + time_delta; // Inform the models of the date change - for (auto const& model : *all_existing_models) { - model->updateActionsState(NOW, time_delta); - } - simgrid::s4u::onTimeAdvance(time_delta); + for (auto const& model : simgrid::kernel::EngineImpl::get_instance()->get_all_models()) + model->update_actions_state(NOW, time_delta); - TRACE_paje_dump_buffer (0); + simgrid::s4u::Engine::on_time_advance(time_delta); return time_delta; } - -/********* - * MODEL * - *********/ -static surf_action_t ActionListExtract(simgrid::surf::ActionList* list) -{ - if (list->empty()) - return nullptr; - surf_action_t res = &list->front(); - list->pop_front(); - return res; -} - -surf_action_t surf_model_extract_done_action_set(surf_model_t model) -{ - return ActionListExtract(model->getDoneActionSet()); -} - -surf_action_t surf_model_extract_failed_action_set(surf_model_t model){ - return ActionListExtract(model->getFailedActionSet()); -} - -int surf_model_running_action_set_size(surf_model_t model){ - return model->getRunningActionSet()->size(); -} - -void surf_cpu_action_set_bound(surf_action_t action, double bound) { - static_cast(action)->setBound(bound); -}