+++ /dev/null
-/* Copyright (c) 2007-2010, 2013-2015. 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 <cstdlib>
-
-#include <algorithm>
-
-#include "host_ptask_L07.hpp"
-
-#include "cpu_interface.hpp"
-#include "surf_routing.hpp"
-#include "xbt/lib.h"
-#include "src/surf/platform.hpp"
-
-XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_host);
-XBT_LOG_EXTERNAL_CATEGORY(xbt_cfg);
-
-/**************************************/
-/*** Resource Creation & Destruction **/
-/**************************************/
-
-static void ptask_netlink_parse_init(sg_platf_link_cbarg_t link)
-{
- netlink_parse_init(link);
- current_property_set = NULL;
-}
-
-void surf_host_model_init_ptask_L07(void)
-{
- XBT_CINFO(xbt_cfg,"Switching to the L07 model to handle parallel tasks.");
- xbt_assert(!surf_cpu_model_pm, "CPU model type already defined");
- xbt_assert(!surf_network_model, "network model type already defined");
-
- // Define the callbacks to parse the XML
- simgrid::surf::on_link.connect(ptask_netlink_parse_init);
-
- surf_host_model = new simgrid::surf::HostL07Model();
- xbt_dynar_push(all_existing_models, &surf_host_model);
-}
-
-
-namespace simgrid {
-namespace surf {
-
-HostL07Model::HostL07Model() : HostModel() {
- p_maxminSystem = lmm_system_new(1);
- surf_network_model = new NetworkL07Model(this,p_maxminSystem);
- surf_cpu_model_pm = new CpuL07Model(this,p_maxminSystem);
-
- routing_model_create(surf_network_model->createLink("__loopback__",
- 498000000, NULL,
- 0.000015, NULL,
- 1/*ON*/, NULL,
- SURF_LINK_FATPIPE, NULL));
-}
-
-HostL07Model::~HostL07Model() {
- delete surf_cpu_model_pm;
- delete surf_network_model;
-}
-
-CpuL07Model::CpuL07Model(HostL07Model *hmodel,lmm_system_t sys)
- : CpuModel()
- , p_hostModel(hmodel)
- {
- p_maxminSystem = sys;
- }
-CpuL07Model::~CpuL07Model() {
- surf_cpu_model_pm = NULL;
- lmm_system_free(p_maxminSystem);
- p_maxminSystem = NULL;
-}
-NetworkL07Model::NetworkL07Model(HostL07Model *hmodel, lmm_system_t sys)
- : NetworkModel()
- , p_hostModel(hmodel)
- {
- p_maxminSystem = sys;
- }
-NetworkL07Model::~NetworkL07Model()
-{
- surf_network_model = NULL;
- p_maxminSystem = NULL; // Avoid multi-free
-}
-
-
-double HostL07Model::next_occuring_event(double /*now*/)
-{
- L07Action *action;
-
- ActionList *running_actions = getRunningActionSet();
- double min = this->shareResourcesMaxMin(running_actions,
- p_maxminSystem,
- bottleneck_solve);
-
- for(ActionList::iterator it(running_actions->begin()), itend(running_actions->end())
- ; it != itend ; ++it) {
- action = static_cast<L07Action*>(&*it);
- if (action->m_latency > 0) {
- if (min < 0) {
- min = action->m_latency;
- XBT_DEBUG("Updating min (value) with %p (start %f): %f", action,
- action->getStartTime(), min);
- } else if (action->m_latency < min) {
- min = action->m_latency;
- XBT_DEBUG("Updating min (latency) with %p (start %f): %f", action,
- action->getStartTime(), min);
- }
- }
- }
-
- XBT_DEBUG("min value : %f", min);
-
- return min;
-}
-
-void HostL07Model::updateActionsState(double /*now*/, double delta) {
-
- L07Action *action;
- ActionList *actionSet = getRunningActionSet();
-
- for(ActionList::iterator it = actionSet->begin(), itNext = it
- ; it != actionSet->end()
- ; it = itNext) {
- ++itNext;
- action = static_cast<L07Action*>(&*it);
- if (action->m_latency > 0) {
- if (action->m_latency > delta) {
- double_update(&(action->m_latency), delta, sg_surf_precision);
- } else {
- action->m_latency = 0.0;
- }
- if ((action->m_latency == 0.0) && (action->isSuspended() == 0)) {
- action->updateBound();
- lmm_update_variable_weight(p_maxminSystem, action->getVariable(), 1.0);
- }
- }
- XBT_DEBUG("Action (%p) : remains (%g) updated by %g.",
- action, action->getRemains(), lmm_variable_getvalue(action->getVariable()) * delta);
- action->updateRemains(lmm_variable_getvalue(action->getVariable()) * delta);
-
- if (action->getMaxDuration() != NO_MAX_DURATION)
- action->updateMaxDuration(delta);
-
- XBT_DEBUG("Action (%p) : remains (%g).", action, action->getRemains());
-
- /* In the next if cascade, the action can be finished either because:
- * - The amount of remaining work reached 0
- * - The max duration was reached
- * If it's not done, it may have failed.
- */
-
- if ((action->getRemains() <= 0) &&
- (lmm_get_variable_weight(action->getVariable()) > 0)) {
- action->finish();
- action->setState(SURF_ACTION_DONE);
- } else if ((action->getMaxDuration() != NO_MAX_DURATION) &&
- (action->getMaxDuration() <= 0)) {
- action->finish();
- action->setState(SURF_ACTION_DONE);
- } else {
- /* Need to check that none of the model has failed */
- lmm_constraint_t cnst = NULL;
- int i = 0;
-
- while ((cnst = lmm_get_cnst_from_var(p_maxminSystem, action->getVariable(), i++))) {
- void *constraint_id = lmm_constraint_id(cnst);
-
- if (static_cast<Host*>(constraint_id)->isOff()) {
- XBT_DEBUG("Action (%p) Failed!!", action);
- action->finish();
- action->setState(SURF_ACTION_FAILED);
- break;
- }
- }
- }
- }
- return;
-}
-
-Action *HostL07Model::executeParallelTask(int host_nb, sg_host_t *host_list,
- double *flops_amount, double *bytes_amount,
- double rate) {
- return new L07Action(this, host_nb, host_list, flops_amount, bytes_amount, rate);
-}
-
-
-L07Action::L07Action(Model *model, int host_nb,
- sg_host_t*host_list,
- double *flops_amount,
- double *bytes_amount,
- double rate)
- : CpuAction(model, 1, 0)
-{
- unsigned int cpt;
- int nb_link = 0;
- int nb_used_host = 0; /* Only the hosts with something to compute (>0 flops) are counted) */
- double latency = 0.0;
-
- this->p_netcardList->reserve(host_nb);
- for (int i = 0; i<host_nb; i++)
- this->p_netcardList->push_back(host_list[i]->pimpl_netcard);
-
- /* Compute the number of affected resources... */
- if(bytes_amount != NULL) {
- xbt_dict_t ptask_parallel_task_link_set = xbt_dict_new_homogeneous(NULL);
-
- for (int i = 0; i < host_nb; i++) {
- for (int j = 0; j < host_nb; j++) {
-
- if (bytes_amount[i * host_nb + j] > 0) {
- double lat=0.0;
- xbt_dynar_t route=NULL;
-
- routing_platf->getRouteAndLatency((*p_netcardList)[i], (*p_netcardList)[j], &route, &lat);
- latency = MAX(latency, lat);
-
- void *_link;
- xbt_dynar_foreach(route, cpt, _link) {
- LinkL07 *link = static_cast<LinkL07*>(_link);
- xbt_dict_set(ptask_parallel_task_link_set, link->getName(), link, NULL);
- }
- }
- }
- }
-
- nb_link = xbt_dict_length(ptask_parallel_task_link_set);
- xbt_dict_free(&ptask_parallel_task_link_set);
- }
-
- for (int i = 0; i < host_nb; i++)
- if (flops_amount[i] > 0)
- nb_used_host++;
-
- XBT_DEBUG("Creating a parallel task (%p) with %d hosts and %d unique links.", this, host_nb, nb_link);
- this->p_computationAmount = flops_amount;
- this->p_communicationAmount = bytes_amount;
- this->m_latency = latency;
- this->m_rate = rate;
-
- this->p_variable = lmm_variable_new(model->getMaxminSystem(), this, 1.0,
- (rate > 0 ? rate : -1.0),
- host_nb + nb_link);
-
- if (this->m_latency > 0)
- lmm_update_variable_weight(model->getMaxminSystem(), this->getVariable(), 0.0);
-
- for (int i = 0; i < host_nb; i++)
- lmm_expand(model->getMaxminSystem(), host_list[i]->pimpl_cpu->getConstraint(),
- this->getVariable(), flops_amount[i]);
-
- if(bytes_amount != NULL) {
- for (int i = 0; i < host_nb; i++) {
- for (int j = 0; j < host_nb; j++) {
-
- xbt_dynar_t route=NULL;
- if (bytes_amount[i * host_nb + j] == 0.0)
- continue;
-
- routing_platf->getRouteAndLatency((*p_netcardList)[i], (*p_netcardList)[j],
- &route, NULL);
-
- void *_link;
- xbt_dynar_foreach(route, cpt, _link) {
- LinkL07 *link = static_cast<LinkL07*>(_link);
- lmm_expand_add(model->getMaxminSystem(), link->getConstraint(),
- this->getVariable(), bytes_amount[i * host_nb + j]);
- }
- }
- }
- }
-
- if (nb_link + nb_used_host == 0) {
- this->setCost(1.0);
- this->setRemains(0.0);
- }
- xbt_free(host_list);
-}
-
-Action *NetworkL07Model::communicate(NetCard *src, NetCard *dst,
- double size, double rate)
-{
- sg_host_t*host_list = xbt_new0(sg_host_t, 2);
- double *flops_amount = xbt_new0(double, 2);
- double *bytes_amount = xbt_new0(double, 4);
- Action *res = NULL;
-
- host_list[0] = sg_host_by_name(src->getName());
- host_list[1] = sg_host_by_name(dst->getName());
- bytes_amount[1] = size;
-
- res = p_hostModel->executeParallelTask(2, host_list, flops_amount, bytes_amount, rate);
-
- return res;
-}
-
-Cpu *CpuL07Model::createCpu(simgrid::s4u::Host *host, xbt_dynar_t powerPeakList,
- int pstate, double power_scale,
- tmgr_trace_t power_trace, int core,
- int initiallyOn,
- tmgr_trace_t state_trace)
-{
- CpuL07 *cpu = new CpuL07(this, host, powerPeakList, pstate, power_scale, power_trace,
- core, initiallyOn, state_trace);
- return cpu;
-}
-
-Link* NetworkL07Model::createLink(const char *name,
- double bw_initial,
- tmgr_trace_t bw_trace,
- double lat_initial,
- tmgr_trace_t lat_trace,
- int initiallyOn,
- tmgr_trace_t state_trace,
- e_surf_link_sharing_policy_t policy,
- xbt_dict_t properties)
-{
- xbt_assert(!Link::byName(name),
- "Link '%s' declared several times in the platform file.", name);
-
- Link* link = new LinkL07(this, name, properties,
- bw_initial, bw_trace,
- lat_initial, lat_trace,
- initiallyOn, state_trace,
- policy);
- Link::onCreation(link);
- return link;
-}
-
-/************
- * Resource *
- ************/
-
-CpuL07::CpuL07(CpuL07Model *model, simgrid::s4u::Host *host,
- xbt_dynar_t speedPeakList, int pstate,
- double speedScale, tmgr_trace_t speedTrace,
- int core, int initiallyOn, tmgr_trace_t state_trace)
- : Cpu(model, host, speedPeakList, pstate,
- core, xbt_dynar_get_as(speedPeakList,pstate,double), speedScale, initiallyOn)
-{
- p_constraint = lmm_constraint_new(model->getMaxminSystem(), this, xbt_dynar_get_as(speedPeakList,pstate,double) * speedScale);
-
- if (speedTrace)
- p_speed.event = future_evt_set->add_trace(speedTrace, 0.0, this);
-
- if (state_trace)
- p_stateEvent = future_evt_set->add_trace(state_trace, 0.0, this);
-}
-
-CpuL07::~CpuL07()
-{
-}
-
-LinkL07::LinkL07(NetworkL07Model *model, const char* name, xbt_dict_t props,
- double bw_initial, tmgr_trace_t bw_trace,
- double lat_initial, tmgr_trace_t lat_trace,
- int initiallyOn, tmgr_trace_t state_trace,
- e_surf_link_sharing_policy_t policy)
- : Link(model, name, props, lmm_constraint_new(model->getMaxminSystem(), this, bw_initial), state_trace)
-{
- m_bandwidth.peak = bw_initial;
- if (bw_trace)
- m_bandwidth.event = future_evt_set->add_trace(bw_trace, 0.0, this);
-
- if (initiallyOn)
- turnOn();
- else
- turnOff();
-
- m_latency.peak = lat_initial;
- if (lat_trace)
- m_latency.event = future_evt_set->add_trace(lat_trace, 0.0, this);
-
- if (policy == SURF_LINK_FATPIPE)
- lmm_constraint_shared(getConstraint());
-}
-
-Action *CpuL07::execution_start(double size)
-{
- sg_host_t*host_list = xbt_new0(sg_host_t, 1);
- double *flops_amount = xbt_new0(double, 1);
-
- host_list[0] = getHost();
- flops_amount[0] = size;
-
- return static_cast<CpuL07Model*>(getModel())->p_hostModel
- ->executeParallelTask( 1, host_list, flops_amount, NULL, -1);
-}
-
-Action *CpuL07::sleep(double duration)
-{
- L07Action *action = static_cast<L07Action*>(execution_start(1.0));
- action->m_maxDuration = duration;
- action->m_suspended = 2;
- lmm_update_variable_weight(getModel()->getMaxminSystem(), action->getVariable(), 0.0);
-
- return action;
-}
-
-bool CpuL07::isUsed(){
- return lmm_constraint_used(getModel()->getMaxminSystem(), getConstraint());
-}
-
-/** @brief take into account changes of speed (either load or max) */
-void CpuL07::onSpeedChange() {
- lmm_variable_t var = NULL;
- lmm_element_t elem = NULL;
-
- lmm_update_constraint_bound(getModel()->getMaxminSystem(), getConstraint(), p_speed.peak * p_speed.scale);
- while ((var = lmm_get_var_from_cnst
- (getModel()->getMaxminSystem(), getConstraint(), &elem))) {
- Action *action = static_cast<Action*>(lmm_variable_id(var));
-
- lmm_update_variable_bound(getModel()->getMaxminSystem(),
- action->getVariable(),
- p_speed.scale * p_speed.peak);
- }
-
- Cpu::onSpeedChange();
-}
-
-
-bool LinkL07::isUsed(){
- return lmm_constraint_used(getModel()->getMaxminSystem(), getConstraint());
-}
-
-void CpuL07::apply_event(tmgr_trace_iterator_t triggered, double value){
- XBT_DEBUG("Updating cpu %s (%p) with value %g", getName(), this, value);
- if (triggered == p_speed.event) {
- p_speed.scale = value;
- onSpeedChange();
- tmgr_trace_event_unref(&p_speed.event);
-
- } else if (triggered == p_stateEvent) {
- if (value > 0)
- turnOn();
- else
- turnOff();
- tmgr_trace_event_unref(&p_stateEvent);
-
- } else {
- xbt_die("Unknown event!\n");
- }
-}
-
-void LinkL07::apply_event(tmgr_trace_iterator_t triggered, double value) {
- XBT_DEBUG("Updating link %s (%p) with value=%f", getName(), this, value);
- if (triggered == m_bandwidth.event) {
- updateBandwidth(value);
- tmgr_trace_event_unref(&m_bandwidth.event);
-
- } else if (triggered == m_latency.event) {
- updateLatency(value);
- tmgr_trace_event_unref(&m_latency.event);
-
- } else if (triggered == m_stateEvent) {
- if (value > 0)
- turnOn();
- else
- turnOff();
- tmgr_trace_event_unref(&m_stateEvent);
-
- } else {
- xbt_die("Unknown event ! \n");
- }
-}
-
-void LinkL07::updateBandwidth(double value)
-{
- m_bandwidth.peak = value;
- lmm_update_constraint_bound(getModel()->getMaxminSystem(), getConstraint(), m_bandwidth.peak * m_bandwidth.scale);
-}
-
-void LinkL07::updateLatency(double value)
-{
- lmm_variable_t var = NULL;
- L07Action *action;
- lmm_element_t elem = NULL;
-
- m_latency.peak = value;
- while ((var = lmm_get_var_from_cnst(getModel()->getMaxminSystem(), getConstraint(), &elem))) {
- action = static_cast<L07Action*>(lmm_variable_id(var));
- action->updateBound();
- }
-}
-
-/**********
- * Action *
- **********/
-
-L07Action::~L07Action(){
- delete p_netcardList;
- free(p_communicationAmount);
- free(p_computationAmount);
-}
-
-void L07Action::updateBound()
-{
- double lat_current = 0.0;
- double lat_bound = -1.0;
- int i, j;
-
- int hostNb = p_netcardList->size();
-
- if (p_communicationAmount != NULL) {
- for (i = 0; i < hostNb; i++) {
- for (j = 0; j < hostNb; j++) {
- xbt_dynar_t route=NULL;
-
- if (p_communicationAmount[i * hostNb + j] > 0) {
- double lat = 0.0;
- routing_platf->getRouteAndLatency((*p_netcardList)[i], (*p_netcardList)[j],
- &route, &lat);
-
- lat_current = MAX(lat_current, lat * p_communicationAmount[i * hostNb + j]);
- }
- }
- }
- }
- lat_bound = sg_tcp_gamma / (2.0 * lat_current);
- XBT_DEBUG("action (%p) : lat_bound = %g", this, lat_bound);
- if ((m_latency == 0.0) && (m_suspended == 0)) {
- if (m_rate < 0)
- lmm_update_variable_bound(getModel()->getMaxminSystem(), getVariable(), lat_bound);
- else
- lmm_update_variable_bound(getModel()->getMaxminSystem(), getVariable(),
- std::min(m_rate, lat_bound));
- }
-}
-
-int L07Action::unref()
-{
- m_refcount--;
- if (!m_refcount) {
- if (action_hook.is_linked())
- p_stateSet->erase(p_stateSet->iterator_to(*this));
- if (getVariable())
- lmm_variable_free(getModel()->getMaxminSystem(), getVariable());
- delete this;
- return 1;
- }
- return 0;
-}
-
-}
-}
