1 /* Copyright (c) 2007-2010, 2013-2015. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
11 #include "host_ptask_L07.hpp"
13 #include "cpu_interface.hpp"
14 #include "surf_routing.hpp"
17 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_host);
19 /**************************************/
20 /*** Resource Creation & Destruction **/
21 /**************************************/
23 static void ptask_netlink_parse_init(sg_platf_link_cbarg_t link)
25 netlink_parse_init(link);
26 current_property_set = NULL;
29 void surf_host_model_init_ptask_L07(void)
31 XBT_INFO("Switching to the L07 model to handle parallel tasks.");
32 xbt_assert(!surf_cpu_model_pm, "CPU model type already defined");
33 xbt_assert(!surf_network_model, "network model type already defined");
35 // Define the callbacks to parse the XML
36 sg_platf_link_add_cb(ptask_netlink_parse_init);
37 sg_platf_postparse_add_cb(host_add_traces);
39 surf_host_model = new simgrid::surf::HostL07Model();
40 xbt_dynar_push(all_existing_models, &surf_host_model);
47 HostL07Model::HostL07Model() : HostModel() {
48 p_maxminSystem = lmm_system_new(1);
49 surf_network_model = new NetworkL07Model(this,p_maxminSystem);
50 surf_cpu_model_pm = new CpuL07Model(this,p_maxminSystem);
52 routing_model_create(surf_network_model->createLink("__loopback__",
55 SURF_RESOURCE_ON, NULL,
56 SURF_LINK_FATPIPE, NULL));
59 HostL07Model::~HostL07Model() {
60 delete surf_cpu_model_pm;
61 delete surf_network_model;
64 CpuL07Model::CpuL07Model(HostL07Model *hmodel,lmm_system_t sys)
70 CpuL07Model::~CpuL07Model() {
71 surf_cpu_model_pm = NULL;
72 p_maxminSystem = NULL; // Avoid multi-free
74 NetworkL07Model::NetworkL07Model(HostL07Model *hmodel, lmm_system_t sys)
80 NetworkL07Model::~NetworkL07Model()
82 surf_network_model = NULL;
83 p_maxminSystem = NULL; // Avoid multi-free
87 double HostL07Model::shareResources(double /*now*/)
91 ActionList *running_actions = getRunningActionSet();
92 double min = this->shareResourcesMaxMin(running_actions,
96 for(ActionList::iterator it(running_actions->begin()), itend(running_actions->end())
97 ; it != itend ; ++it) {
98 action = static_cast<L07Action*>(&*it);
99 if (action->m_latency > 0) {
101 min = action->m_latency;
102 XBT_DEBUG("Updating min (value) with %p (start %f): %f", action,
103 action->getStartTime(), min);
104 } else if (action->m_latency < min) {
105 min = action->m_latency;
106 XBT_DEBUG("Updating min (latency) with %p (start %f): %f", action,
107 action->getStartTime(), min);
112 XBT_DEBUG("min value : %f", min);
117 void HostL07Model::updateActionsState(double /*now*/, double delta) {
120 ActionList *actionSet = getRunningActionSet();
122 for(ActionList::iterator it = actionSet->begin(), itNext = it
123 ; it != actionSet->end()
126 action = static_cast<L07Action*>(&*it);
127 if (action->m_latency > 0) {
128 if (action->m_latency > delta) {
129 double_update(&(action->m_latency), delta, sg_surf_precision);
131 action->m_latency = 0.0;
133 if ((action->m_latency == 0.0) && (action->isSuspended() == 0)) {
134 action->updateBound();
135 lmm_update_variable_weight(p_maxminSystem, action->getVariable(), 1.0);
138 XBT_DEBUG("Action (%p) : remains (%g) updated by %g.",
139 action, action->getRemains(), lmm_variable_getvalue(action->getVariable()) * delta);
140 action->updateRemains(lmm_variable_getvalue(action->getVariable()) * delta);
142 if (action->getMaxDuration() != NO_MAX_DURATION)
143 action->updateMaxDuration(delta);
145 XBT_DEBUG("Action (%p) : remains (%g).", action, action->getRemains());
147 /* In the next if cascade, the action can be finished either because:
148 * - The amount of remaining work reached 0
149 * - The max duration was reached
150 * If it's not done, it may have failed.
153 if ((action->getRemains() <= 0) &&
154 (lmm_get_variable_weight(action->getVariable()) > 0)) {
156 action->setState(SURF_ACTION_DONE);
157 } else if ((action->getMaxDuration() != NO_MAX_DURATION) &&
158 (action->getMaxDuration() <= 0)) {
160 action->setState(SURF_ACTION_DONE);
162 /* Need to check that none of the model has failed */
163 lmm_constraint_t cnst = NULL;
166 while ((cnst = lmm_get_cnst_from_var(p_maxminSystem, action->getVariable(), i++))) {
167 void *constraint_id = lmm_constraint_id(cnst);
169 if (static_cast<Host*>(constraint_id)->getState() == SURF_RESOURCE_OFF) {
170 XBT_DEBUG("Action (%p) Failed!!", action);
172 action->setState(SURF_ACTION_FAILED);
181 Action *HostL07Model::executeParallelTask(int host_nb, sg_host_t *host_list,
182 double *flops_amount, double *bytes_amount,
184 return new L07Action(this, host_nb, host_list, flops_amount, bytes_amount, rate);
188 L07Action::L07Action(Model *model, int host_nb,
190 double *flops_amount,
191 double *bytes_amount,
193 : CpuAction(model, 1, 0)
197 int nb_used_host = 0; /* Only the hosts with something to compute (>0 flops) are counted) */
198 double latency = 0.0;
200 xbt_dict_t ptask_parallel_task_link_set = xbt_dict_new_homogeneous(NULL);
202 this->p_netcardList->reserve(host_nb);
203 for (int i = 0; i<host_nb; i++)
204 this->p_netcardList->push_back(host_list[i]->p_netcard);
206 /* Compute the number of affected resources... */
207 for (int i = 0; i < host_nb; i++) {
208 for (int j = 0; j < host_nb; j++) {
209 xbt_dynar_t route=NULL;
211 if (bytes_amount[i * host_nb + j] > 0) {
217 routing_platf->getRouteAndLatency((*this->p_netcardList)[i], (*this->p_netcardList)[j],
219 latency = MAX(latency, lat);
221 xbt_dynar_foreach(route, cpt, _link) {
222 link = static_cast<LinkL07*>(_link);
223 xbt_dict_set(ptask_parallel_task_link_set, link->getName(), link, NULL);
229 nb_link = xbt_dict_length(ptask_parallel_task_link_set);
230 xbt_dict_free(&ptask_parallel_task_link_set);
232 for (int i = 0; i < host_nb; i++)
233 if (flops_amount[i] > 0)
236 XBT_DEBUG("Creating a parallel task (%p) with %d cpus and %d links.",
237 this, host_nb, nb_link);
238 this->p_computationAmount = flops_amount;
239 this->p_communicationAmount = bytes_amount;
240 this->m_latency = latency;
243 this->p_variable = lmm_variable_new(model->getMaxminSystem(), this, 1.0,
244 (rate > 0 ? rate : -1.0),
247 if (this->m_latency > 0)
248 lmm_update_variable_weight(model->getMaxminSystem(), this->getVariable(), 0.0);
250 for (int i = 0; i < host_nb; i++)
251 lmm_expand(model->getMaxminSystem(),
252 host_list[i]->p_cpu->getConstraint(),
253 this->getVariable(), flops_amount[i]);
255 for (int i = 0; i < host_nb; i++) {
256 for (int j = 0; j < host_nb; j++) {
259 xbt_dynar_t route=NULL;
260 if (bytes_amount[i * host_nb + j] == 0.0)
263 routing_platf->getRouteAndLatency((*this->p_netcardList)[i], (*this->p_netcardList)[j],
266 xbt_dynar_foreach(route, cpt, _link) {
267 LinkL07 *link = static_cast<LinkL07*>(_link);
268 lmm_expand_add(model->getMaxminSystem(), link->getConstraint(),
270 bytes_amount[i * host_nb + j]);
275 if (nb_link + nb_used_host == 0) {
277 this->setRemains(0.0);
281 Action *NetworkL07Model::communicate(NetCard *src, NetCard *dst,
282 double size, double rate)
284 sg_host_t*host_list = xbt_new0(sg_host_t, 2);
285 double *flops_amount = xbt_new0(double, 2);
286 double *bytes_amount = xbt_new0(double, 4);
289 host_list[0] = sg_host_by_name(src->getName());
290 host_list[1] = sg_host_by_name(dst->getName());
291 bytes_amount[1] = size;
293 res = p_hostModel->executeParallelTask(2, host_list,
300 Cpu *CpuL07Model::createCpu(simgrid::Host *host, xbt_dynar_t powerPeakList,
301 int pstate, double power_scale,
302 tmgr_trace_t power_trace, int core,
303 e_surf_resource_state_t state_initial,
304 tmgr_trace_t state_trace)
306 CpuL07 *cpu = new CpuL07(this, host, powerPeakList, pstate, power_scale, power_trace,
307 core, state_initial, state_trace);
311 Link* NetworkL07Model::createLink(const char *name,
313 tmgr_trace_t bw_trace,
315 tmgr_trace_t lat_trace,
316 e_surf_resource_state_t state_initial,
317 tmgr_trace_t state_trace,
318 e_surf_link_sharing_policy_t policy,
319 xbt_dict_t properties)
321 xbt_assert(!Link::byName(name),
322 "Link '%s' declared several times in the platform file.", name);
324 Link* link = new LinkL07(this, name, properties,
325 bw_initial, bw_trace,
326 lat_initial, lat_trace,
327 state_initial, state_trace,
329 Link::onCreation(link);
333 void HostL07Model::addTraces()
335 xbt_dict_cursor_t cursor = NULL;
336 char *trace_name, *elm;
338 if (!trace_connect_list_host_avail)
341 /* Connect traces relative to cpu */
342 xbt_dict_foreach(trace_connect_list_host_avail, cursor, trace_name, elm) {
343 tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
344 CpuL07 *host = static_cast<CpuL07*>(sg_host_by_name(elm)->p_cpu);
346 xbt_assert(host, "Host %s undefined", elm);
347 xbt_assert(trace, "Trace %s undefined", trace_name);
349 host->p_stateEvent = tmgr_history_add_trace(history, trace, 0.0, 0, host);
352 xbt_dict_foreach(trace_connect_list_power, cursor, trace_name, elm) {
353 tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
354 CpuL07 *host = static_cast<CpuL07*>(sg_host_by_name(elm)->p_cpu);
356 xbt_assert(host, "Host %s undefined", elm);
357 xbt_assert(trace, "Trace %s undefined", trace_name);
359 host->p_speedEvent = tmgr_history_add_trace(history, trace, 0.0, 0, host);
362 /* Connect traces relative to network */
363 xbt_dict_foreach(trace_connect_list_link_avail, cursor, trace_name, elm) {
364 tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
365 LinkL07 *link = static_cast<LinkL07*>(Link::byName(elm));
367 xbt_assert(link, "Link %s undefined", elm);
368 xbt_assert(trace, "Trace %s undefined", trace_name);
370 link->p_stateEvent = tmgr_history_add_trace(history, trace, 0.0, 0, link);
373 xbt_dict_foreach(trace_connect_list_bandwidth, cursor, trace_name, elm) {
374 tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
375 LinkL07 *link = static_cast<LinkL07*>(Link::byName(elm));
377 xbt_assert(link, "Link %s undefined", elm);
378 xbt_assert(trace, "Trace %s undefined", trace_name);
380 link->p_bwEvent = tmgr_history_add_trace(history, trace, 0.0, 0, link);
383 xbt_dict_foreach(trace_connect_list_latency, cursor, trace_name, elm) {
384 tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
385 LinkL07 *link = static_cast<LinkL07*>(Link::byName(elm));
387 xbt_assert(link, "Link %s undefined", elm);
388 xbt_assert(trace, "Trace %s undefined", trace_name);
390 link->p_latEvent = tmgr_history_add_trace(history, trace, 0.0, 0, link);
398 CpuL07::CpuL07(CpuL07Model *model, simgrid::Host *host,
399 xbt_dynar_t speedPeakList, int pstate,
400 double speedScale, tmgr_trace_t speedTrace,
401 int core, e_surf_resource_state_t state_initial, tmgr_trace_t state_trace)
402 : Cpu(model, host, speedPeakList, pstate,
403 core, xbt_dynar_get_as(speedPeakList,pstate,double), speedScale, state_initial)
405 p_constraint = lmm_constraint_new(model->getMaxminSystem(), this, xbt_dynar_get_as(speedPeakList,pstate,double) * speedScale);
408 p_speedEvent = tmgr_history_add_trace(history, speedTrace, 0.0, 0, this);
413 p_stateEvent = tmgr_history_add_trace(history, state_trace, 0.0, 0, this);
420 LinkL07::LinkL07(NetworkL07Model *model, const char* name, xbt_dict_t props,
422 tmgr_trace_t bw_trace,
424 tmgr_trace_t lat_trace,
425 e_surf_resource_state_t state_initial,
426 tmgr_trace_t state_trace,
427 e_surf_link_sharing_policy_t policy)
428 : Link(model, name, props, lmm_constraint_new(model->getMaxminSystem(), this, bw_initial), history, state_trace)
430 m_bwCurrent = bw_initial;
432 p_bwEvent = tmgr_history_add_trace(history, bw_trace, 0.0, 0, this);
434 setState(state_initial);
435 m_latCurrent = lat_initial;
438 p_latEvent = tmgr_history_add_trace(history, lat_trace, 0.0, 0, this);
440 if (policy == SURF_LINK_FATPIPE)
441 lmm_constraint_shared(getConstraint());
444 Action *CpuL07::execute(double size)
446 sg_host_t*host_list = xbt_new0(sg_host_t, 1);
447 double *flops_amount = xbt_new0(double, 1);
448 double *bytes_amount = xbt_new0(double, 1);
450 host_list[0] = getHost();
451 flops_amount[0] = size;
453 return static_cast<CpuL07Model*>(getModel())
455 ->executeParallelTask( 1, host_list, flops_amount, bytes_amount, -1);
458 Action *CpuL07::sleep(double duration)
460 L07Action *action = NULL;
462 XBT_IN("(%s,%g)", getName(), duration);
464 action = static_cast<L07Action*>(execute(1.0));
465 action->m_maxDuration = duration;
466 action->m_suspended = 2;
467 lmm_update_variable_weight(getModel()->getMaxminSystem(), action->getVariable(), 0.0);
473 bool CpuL07::isUsed(){
474 return lmm_constraint_used(getModel()->getMaxminSystem(), getConstraint());
477 bool LinkL07::isUsed(){
478 return lmm_constraint_used(getModel()->getMaxminSystem(), getConstraint());
481 void CpuL07::updateState(tmgr_trace_event_t event_type, double value, double /*date*/){
482 XBT_DEBUG("Updating cpu %s (%p) with value %g", getName(), this, value);
483 if (event_type == p_speedEvent) {
484 m_speedScale = value;
485 lmm_update_constraint_bound(getModel()->getMaxminSystem(), getConstraint(), m_speedPeak * m_speedScale);
486 if (tmgr_trace_event_free(event_type))
488 } else if (event_type == p_stateEvent) {
490 setState(SURF_RESOURCE_ON);
492 setState(SURF_RESOURCE_OFF);
493 if (tmgr_trace_event_free(event_type))
496 XBT_CRITICAL("Unknown event ! \n");
502 void LinkL07::updateState(tmgr_trace_event_t event_type, double value, double date) {
503 XBT_DEBUG("Updating link %s (%p) with value=%f for date=%g", getName(), this, value, date);
504 if (event_type == p_bwEvent) {
505 updateBandwidth(value, date);
506 if (tmgr_trace_event_free(event_type))
508 } else if (event_type == p_latEvent) {
509 updateLatency(value, date);
510 if (tmgr_trace_event_free(event_type))
512 } else if (event_type == p_stateEvent) {
514 setState(SURF_RESOURCE_ON);
516 setState(SURF_RESOURCE_OFF);
517 if (tmgr_trace_event_free(event_type))
520 XBT_CRITICAL("Unknown event ! \n");
526 double LinkL07::getBandwidth()
531 void LinkL07::updateBandwidth(double value, double date)
534 lmm_update_constraint_bound(getModel()->getMaxminSystem(), getConstraint(), m_bwCurrent);
537 void LinkL07::updateLatency(double value, double date)
539 lmm_variable_t var = NULL;
541 lmm_element_t elem = NULL;
543 m_latCurrent = value;
544 while ((var = lmm_get_var_from_cnst(getModel()->getMaxminSystem(), getConstraint(), &elem))) {
545 action = static_cast<L07Action*>(lmm_variable_id(var));
546 action->updateBound();
554 L07Action::~L07Action(){
555 free(p_communicationAmount);
556 free(p_computationAmount);
559 void L07Action::updateBound()
561 double lat_current = 0.0;
562 double lat_bound = -1.0;
565 int hostNb = p_netcardList->size();
567 for (i = 0; i < hostNb; i++) {
568 for (j = 0; j < hostNb; j++) {
569 xbt_dynar_t route=NULL;
571 if (p_communicationAmount[i * hostNb + j] > 0) {
573 routing_platf->getRouteAndLatency((*p_netcardList)[i], (*p_netcardList)[j],
576 lat_current = MAX(lat_current, lat * p_communicationAmount[i * hostNb + j]);
580 lat_bound = sg_tcp_gamma / (2.0 * lat_current);
581 XBT_DEBUG("action (%p) : lat_bound = %g", this, lat_bound);
582 if ((m_latency == 0.0) && (m_suspended == 0)) {
584 lmm_update_variable_bound(getModel()->getMaxminSystem(), getVariable(), lat_bound);
586 lmm_update_variable_bound(getModel()->getMaxminSystem(), getVariable(),
587 std::min(m_rate, lat_bound));
591 int L07Action::unref()
595 if (action_hook.is_linked())
596 p_stateSet->erase(p_stateSet->iterator_to(*this));
598 lmm_variable_free(getModel()->getMaxminSystem(), getVariable());
605 void L07Action::suspend()
607 XBT_IN("(%p))", this);
608 if (m_suspended != 2) {
610 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), 0.0);
615 void L07Action::resume()
617 XBT_IN("(%p)", this);
618 if (m_suspended != 2) {
619 lmm_update_variable_weight(getModel()->getMaxminSystem(), getVariable(), 1.0);
625 void L07Action::setMaxDuration(double duration)
626 { /* FIXME: should inherit */
627 XBT_IN("(%p,%g)", this, duration);
628 m_maxDuration = duration;
632 void L07Action::setPriority(double priority)
633 { /* FIXME: should inherit */
634 XBT_IN("(%p,%g)", this, priority);
635 m_priority = priority;
639 double L07Action::getRemains()
641 XBT_IN("(%p)", this);