1 #include "network_cm02.hpp"
2 #include "maxmin_private.h"
3 #include "simgrid/sg_config.h"
5 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_network);
7 double sg_sender_gap = 0.0;
8 double sg_latency_factor = 1.0; /* default value; can be set by model or from command line */
9 double sg_bandwidth_factor = 1.0; /* default value; can be set by model or from command line */
10 double sg_weight_S_parameter = 0.0; /* default value; can be set by model or from command line */
12 double sg_tcp_gamma = 0.0;
13 int sg_network_crosstraffic = 0;
19 static void net_parse_link_init(sg_platf_link_cbarg_t link){
20 if (link->policy == SURF_LINK_FULLDUPLEX) {
22 link_id = bprintf("%s_UP", link->id);
23 surf_network_model->createResource(link_id,
25 link->bandwidth_trace,
29 link->state_trace, link->policy, link->properties);
31 link_id = bprintf("%s_DOWN", link->id);
32 surf_network_model->createResource(link_id,
34 link->bandwidth_trace,
38 link->state_trace, link->policy, link->properties);
41 surf_network_model->createResource(link->id,
43 link->bandwidth_trace,
47 link->state_trace, link->policy, link->properties);
51 static void net_add_traces(void){
52 xbt_dict_cursor_t cursor = NULL;
53 char *trace_name, *elm;
55 static int called = 0;
60 /* connect all traces relative to network */
61 xbt_dict_foreach(trace_connect_list_link_avail, cursor, trace_name, elm) {
62 tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
63 NetworkCm02LinkLmmPtr link = dynamic_cast<NetworkCm02LinkLmmPtr>(
64 static_cast<ResourcePtr>(
65 xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL)));
67 xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
70 "Cannot connect trace %s to link %s: trace undefined",
73 link->p_stateEvent = tmgr_history_add_trace(history, trace, 0.0, 0, static_cast<ResourcePtr>(link));
76 xbt_dict_foreach(trace_connect_list_bandwidth, cursor, trace_name, elm) {
77 tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
78 NetworkCm02LinkLmmPtr link = dynamic_cast<NetworkCm02LinkLmmPtr>(
79 static_cast<ResourcePtr>(
80 xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL)));
82 xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
85 "Cannot connect trace %s to link %s: trace undefined",
88 link->p_power.event = tmgr_history_add_trace(history, trace, 0.0, 0, static_cast<ResourcePtr>(link));
91 xbt_dict_foreach(trace_connect_list_latency, cursor, trace_name, elm) {
92 tmgr_trace_t trace = (tmgr_trace_t) xbt_dict_get_or_null(traces_set_list, trace_name);
93 NetworkCm02LinkLmmPtr link = dynamic_cast<NetworkCm02LinkLmmPtr>(
94 static_cast<ResourcePtr>(
95 xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL)));
97 xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
100 "Cannot connect trace %s to link %s: trace undefined",
103 link->p_latEvent = tmgr_history_add_trace(history, trace, 0.0, 0, static_cast<ResourcePtr>(link));
107 void net_define_callbacks(void)
109 /* Figuring out the network links */
110 sg_platf_link_add_cb(net_parse_link_init);
111 sg_platf_postparse_add_cb(net_add_traces);
118 /************************************************************************/
119 /* New model based on optimizations discussed during Pedro Velho's thesis*/
120 /************************************************************************/
121 /* @techreport{VELHO:2011:HAL-00646896:1, */
122 /* url = {http://hal.inria.fr/hal-00646896/en/}, */
123 /* title = {{Flow-level network models: have we reached the limits?}}, */
124 /* author = {Velho, Pedro and Schnorr, Lucas and Casanova, Henri and Legrand, Arnaud}, */
125 /* type = {Rapport de recherche}, */
126 /* institution = {INRIA}, */
127 /* number = {RR-7821}, */
130 /* pdf = {http://hal.inria.fr/hal-00646896/PDF/rr-validity.pdf}, */
132 void surf_network_model_init_LegrandVelho(void)
134 if (surf_network_model)
137 surf_network_model = new NetworkCm02Model();
138 net_define_callbacks();
139 ModelPtr model = static_cast<ModelPtr>(surf_network_model);
140 xbt_dynar_push(model_list, &model);
142 xbt_cfg_setdefault_double(_sg_cfg_set, "network/latency_factor",
144 xbt_cfg_setdefault_double(_sg_cfg_set, "network/bandwidth_factor",
146 xbt_cfg_setdefault_double(_sg_cfg_set, "network/weight_S", 20537);
149 /***************************************************************************/
150 /* The nice TCP sharing model designed by Loris Marchal and Henri Casanova */
151 /***************************************************************************/
152 /* @TechReport{ rr-lip2002-40, */
153 /* author = {Henri Casanova and Loris Marchal}, */
154 /* institution = {LIP}, */
155 /* title = {A Network Model for Simulation of Grid Application}, */
156 /* number = {2002-40}, */
160 void surf_network_model_init_CM02(void)
163 if (surf_network_model)
166 surf_network_model = new NetworkCm02Model();
167 net_define_callbacks();
168 ModelPtr model = static_cast<ModelPtr>(surf_network_model);
169 xbt_dynar_push(model_list, &model);
171 xbt_cfg_setdefault_double(_sg_cfg_set, "network/latency_factor", 1.0);
172 xbt_cfg_setdefault_double(_sg_cfg_set, "network/bandwidth_factor",
174 xbt_cfg_setdefault_double(_sg_cfg_set, "network/weight_S", 0.0);
177 /***************************************************************************/
178 /* The models from Steven H. Low */
179 /***************************************************************************/
180 /* @article{Low03, */
181 /* author={Steven H. Low}, */
182 /* title={A Duality Model of {TCP} and Queue Management Algorithms}, */
184 /* journal={{IEEE/ACM} Transactions on Networking}, */
185 /* volume={11}, number={4}, */
187 void surf_network_model_init_Reno(void)
189 if (surf_network_model)
192 surf_network_model = new NetworkCm02Model();
193 net_define_callbacks();
194 ModelPtr model = static_cast<ModelPtr>(surf_network_model);
195 xbt_dynar_push(model_list, &model);
196 lmm_set_default_protocol_function(func_reno_f, func_reno_fp,
198 surf_network_model->f_networkSolve = lagrange_solve;
200 xbt_cfg_setdefault_double(_sg_cfg_set, "network/latency_factor", 10.4);
201 xbt_cfg_setdefault_double(_sg_cfg_set, "network/bandwidth_factor",
203 xbt_cfg_setdefault_double(_sg_cfg_set, "network/weight_S", 8775);
207 void surf_network_model_init_Reno2(void)
209 if (surf_network_model)
212 surf_network_model = new NetworkCm02Model();
213 net_define_callbacks();
214 ModelPtr model = static_cast<ModelPtr>(surf_network_model);
215 xbt_dynar_push(model_list, &model);
216 lmm_set_default_protocol_function(func_reno2_f, func_reno2_fp,
218 surf_network_model->f_networkSolve = lagrange_solve;
220 xbt_cfg_setdefault_double(_sg_cfg_set, "network/latency_factor", 10.4);
221 xbt_cfg_setdefault_double(_sg_cfg_set, "network/bandwidth_factor",
223 xbt_cfg_setdefault_double(_sg_cfg_set, "network/weight_S_parameter",
227 void surf_network_model_init_Vegas(void)
229 if (surf_network_model)
232 surf_network_model = new NetworkCm02Model();
233 net_define_callbacks();
234 ModelPtr model = static_cast<ModelPtr>(surf_network_model);
235 xbt_dynar_push(model_list, &model);
236 lmm_set_default_protocol_function(func_vegas_f, func_vegas_fp,
238 surf_network_model->f_networkSolve = lagrange_solve;
240 xbt_cfg_setdefault_double(_sg_cfg_set, "network/latency_factor", 10.4);
241 xbt_cfg_setdefault_double(_sg_cfg_set, "network/bandwidth_factor",
243 xbt_cfg_setdefault_double(_sg_cfg_set, "network/weight_S", 8775);
246 void NetworkCm02Model::initialize()
248 ActionLmmPtr comm = NULL;
250 char *optim = xbt_cfg_get_string(_sg_cfg_set, "network/optim");
252 xbt_cfg_get_boolean(_sg_cfg_set, "network/maxmin_selective_update");
254 if (!strcmp(optim, "Full")) {
255 p_updateMechanism = UM_FULL;
256 m_selectiveUpdate = select;
257 } else if (!strcmp(optim, "Lazy")) {
258 p_updateMechanism = UM_LAZY;
259 m_selectiveUpdate = 1;
260 xbt_assert((select == 1)
262 (xbt_cfg_is_default_value
263 (_sg_cfg_set, "network/maxmin_selective_update")),
264 "Disabling selective update while using the lazy update mechanism is dumb!");
266 xbt_die("Unsupported optimization (%s) for this model", optim);
270 p_maxminSystem = lmm_system_new(m_selectiveUpdate);
272 const char* lb_name = "__loopback__";
273 routing_model_create(static_cast<ResourcePtr>(createResource(lb_name,
274 498000000, NULL, 0.000015, NULL,
275 SURF_RESOURCE_ON, NULL,
276 SURF_LINK_FATPIPE, NULL)));
278 if (p_updateMechanism == UM_LAZY) {
279 p_actionHeap = xbt_heap_new(8, NULL);
280 xbt_heap_set_update_callback(p_actionHeap, surf_action_lmm_update_index_heap);
281 p_modifiedSet = xbt_swag_new(xbt_swag_offset(*comm, p_actionListHookup));
282 p_maxminSystem->keep_track = p_modifiedSet;
288 NetworkLinkPtr NetworkCm02Model::createResource(const char *name,
290 tmgr_trace_t bw_trace,
292 tmgr_trace_t lat_trace,
293 e_surf_resource_state_t state_initial,
294 tmgr_trace_t state_trace,
295 e_surf_link_sharing_policy_t policy,
296 xbt_dict_t properties)
298 xbt_assert(!xbt_lib_get_or_null(link_lib, name, SURF_LINK_LEVEL),
299 "Link '%s' declared several times in the platform file.",
302 NetworkCm02LinkLmmPtr nw_link =
303 new NetworkCm02LinkLmm(this, name, properties, p_maxminSystem, sg_bandwidth_factor * bw_initial, history,
304 state_initial, state_trace, bw_initial, bw_trace, lat_initial, lat_trace, policy);
307 xbt_lib_set(link_lib, name, SURF_LINK_LEVEL, static_cast<ResourcePtr>(nw_link));
308 XBT_DEBUG("Create link '%s'",name);
313 void NetworkCm02Model::updateActionsStateLazy(double now, double /*delta*/)
315 NetworkCm02ActionLmmPtr action;
316 while ((xbt_heap_size(p_actionHeap) > 0)
317 && (double_equals(xbt_heap_maxkey(p_actionHeap), now))) {
318 action = (NetworkCm02ActionLmmPtr) xbt_heap_pop(p_actionHeap);
319 XBT_DEBUG("Something happened to action %p", action);
321 if (TRACE_is_enabled()) {
322 int n = lmm_get_number_of_cnst_from_var(p_maxminSystem, action->p_variable);
324 for (i = 0; i < n; i++){
325 lmm_constraint_t constraint = lmm_get_cnst_from_var(p_maxminSystem,
328 NetworkCm02LinkLmmPtr link = static_cast<NetworkCm02LinkLmmPtr>(lmm_constraint_id(constraint));
329 TRACE_surf_link_set_utilization(link->m_name,
331 (lmm_variable_getvalue(action->p_variable)*
332 lmm_get_cnst_weight_from_var(p_maxminSystem,
335 action->m_lastUpdate,
336 now - action->m_lastUpdate);
341 // if I am wearing a latency hat
342 if (action->m_hat == LATENCY) {
343 XBT_DEBUG("Latency paid for action %p. Activating", action);
344 lmm_update_variable_weight(p_maxminSystem, action->p_variable, action->m_weight);
345 action->heapRemove(p_actionHeap);
346 action->m_lastUpdate = surf_get_clock();
348 // if I am wearing a max_duration or normal hat
349 } else if (action->m_hat == MAX_DURATION ||
350 action->m_hat == NORMAL) {
351 // no need to communicate anymore
352 // assume that flows that reached max_duration have remaining of 0
353 action->m_finish = surf_get_clock();
354 XBT_DEBUG("Action %p finished", action);
355 action->m_remains = 0;
356 action->m_finish = surf_get_clock();
357 action->setState(SURF_ACTION_DONE);
358 action->heapRemove(p_actionHeap);
366 ActionPtr NetworkCm02Model::communicate(RoutingEdgePtr src, RoutingEdgePtr dst,
367 double size, double rate)
371 NetworkCm02LinkLmmPtr link;
373 NetworkCm02ActionLmmPtr action = NULL;
374 double bandwidth_bound;
375 double latency = 0.0;
376 xbt_dynar_t back_route = NULL;
377 int constraints_per_variable = 0;
379 xbt_dynar_t route = xbt_dynar_new(sizeof(RoutingEdgePtr), NULL);
381 XBT_IN("(%s,%s,%g,%g)", src->p_name, dst->p_name, size, rate);
383 routing_platf->getRouteAndLatency(src, dst, &route, &latency);
384 xbt_assert(!xbt_dynar_is_empty(route) || latency,
385 "You're trying to send data from %s to %s but there is no connection at all between these two hosts.",
386 src->p_name, dst->p_name);
388 xbt_dynar_foreach(route, i, _link) {
389 link = dynamic_cast<NetworkCm02LinkLmmPtr>(static_cast<ResourcePtr>(_link));
390 if (link->p_stateCurrent == SURF_RESOURCE_OFF) {
395 if (sg_network_crosstraffic == 1) {
396 routing_platf->getRouteAndLatency(dst, src, &back_route, NULL);
397 xbt_dynar_foreach(back_route, i, _link) {
398 link = dynamic_cast<NetworkCm02LinkLmmPtr>(static_cast<ResourcePtr>(_link));
399 if (link->p_stateCurrent == SURF_RESOURCE_OFF) {
406 action = new NetworkCm02ActionLmm(this, size, failed);
408 #ifdef HAVE_LATENCY_BOUND_TRACKING
409 action->m_latencyLimited = 0;
411 action->m_weight = action->m_latency = latency;
413 //FIXME:REMOVxbt_swag_insert(action, action->p_stateSet);
414 action->m_rate = rate;
415 if (p_updateMechanism == UM_LAZY) {
416 action->m_indexHeap = -1;
417 action->m_lastUpdate = surf_get_clock();
420 bandwidth_bound = -1.0;
421 if (sg_weight_S_parameter > 0) {
422 xbt_dynar_foreach(route, i, _link) {
423 link = dynamic_cast<NetworkCm02LinkLmmPtr>(static_cast<ResourcePtr>(_link));
425 sg_weight_S_parameter /
426 (link->p_power.peak * link->p_power.scale);
429 xbt_dynar_foreach(route, i, _link) {
430 link = dynamic_cast<NetworkCm02LinkLmmPtr>(static_cast<ResourcePtr>(_link));
431 double bb = bandwidthFactor(size) * (link->p_power.peak * link->p_power.scale);
433 (bandwidth_bound < 0.0) ? bb : min(bandwidth_bound, bb);
436 action->m_latCurrent = action->m_latency;
437 action->m_latency *= latencyFactor(size);
438 action->m_rate = bandwidthConstraint(action->m_rate, bandwidth_bound, size);
440 xbt_assert(!xbt_dynar_is_empty(route),
441 "Using a model with a gap (e.g., SMPI) with a platform without links (e.g. vivaldi)!!!");
443 //link = *(NetworkCm02LinkLmmPtr *) xbt_dynar_get_ptr(route, 0);
444 link = dynamic_cast<NetworkCm02LinkLmmPtr>(*static_cast<ResourcePtr *>(xbt_dynar_get_ptr(route, 0)));
445 gapAppend(size, link, action);
446 XBT_DEBUG("Comm %p: %s -> %s gap=%f (lat=%f)",
447 action, src->p_name, dst->p_name, action->m_senderGap,
451 constraints_per_variable = xbt_dynar_length(route);
452 if (back_route != NULL)
453 constraints_per_variable += xbt_dynar_length(back_route);
455 if (action->m_latency > 0) {
456 action->p_variable = lmm_variable_new(p_maxminSystem, action, 0.0, -1.0,
457 constraints_per_variable);
458 if (p_updateMechanism == UM_LAZY) {
459 // add to the heap the event when the latency is payed
460 XBT_DEBUG("Added action (%p) one latency event at date %f", action,
461 action->m_latency + action->m_lastUpdate);
462 action->heapInsert(p_actionHeap, action->m_latency + action->m_lastUpdate, xbt_dynar_is_empty(route) ? NORMAL : LATENCY);
465 action->p_variable = lmm_variable_new(p_maxminSystem, action, 1.0, -1.0, constraints_per_variable);
467 if (action->m_rate < 0) {
468 lmm_update_variable_bound(p_maxminSystem, action->p_variable, (action->m_latCurrent > 0) ? sg_tcp_gamma / (2.0 * action->m_latCurrent) : -1.0);
470 lmm_update_variable_bound(p_maxminSystem, action->p_variable, (action->m_latCurrent > 0) ? min(action->m_rate, sg_tcp_gamma / (2.0 * action->m_latCurrent)) : action->m_rate);
473 xbt_dynar_foreach(route, i, _link) {
474 link = dynamic_cast<NetworkCm02LinkLmmPtr>(static_cast<ResourcePtr>(_link));
475 lmm_expand(p_maxminSystem, link->p_constraint, action->p_variable, 1.0);
478 if (sg_network_crosstraffic == 1) {
479 XBT_DEBUG("Fullduplex active adding backward flow using 5%%");
480 xbt_dynar_foreach(back_route, i, _link) {
481 link = dynamic_cast<NetworkCm02LinkLmmPtr>(static_cast<ResourcePtr>(_link));
482 lmm_expand(p_maxminSystem, link->p_constraint, action->p_variable, .05);
486 xbt_dynar_free(&route);
497 NetworkCm02LinkLmm::NetworkCm02LinkLmm(NetworkCm02ModelPtr model, const char *name, xbt_dict_t props,
499 double constraint_value,
500 tmgr_history_t history,
501 e_surf_resource_state_t state_init,
502 tmgr_trace_t state_trace,
504 tmgr_trace_t metric_trace,
506 tmgr_trace_t lat_trace,
507 e_surf_link_sharing_policy_t policy)
508 : Resource(model, name, props),
509 NetworkLinkLmm(system, constraint_value, history, state_init, state_trace, metric_peak, metric_trace)
511 m_latCurrent = lat_initial;
513 p_latEvent = tmgr_history_add_trace(history, lat_trace, 0.0, 0, static_cast<ResourcePtr>(this));
515 if (policy == SURF_LINK_FATPIPE)
516 lmm_constraint_shared(p_constraint);
521 void NetworkCm02LinkLmm::updateState(tmgr_trace_event_t event_type,
522 double value, double date)
524 /* printf("[" "%g" "] Asking to update network card \"%s\" with value " */
525 /* "%g" " for event %p\n", surf_get_clock(), nw_link->name, */
526 /* value, event_type); */
528 if (event_type == p_power.event) {
530 sg_weight_S_parameter / value - sg_weight_S_parameter /
531 (p_power.peak * p_power.scale);
532 lmm_variable_t var = NULL;
533 lmm_element_t elem = NULL;
534 NetworkCm02ActionLmmPtr action = NULL;
536 p_power.peak = value;
537 lmm_update_constraint_bound(p_model->p_maxminSystem,
539 sg_bandwidth_factor *
540 (p_power.peak * p_power.scale));
542 TRACE_surf_link_set_bandwidth(date, m_name, sg_bandwidth_factor * p_power.peak * p_power.scale);
544 if (sg_weight_S_parameter > 0) {
545 while ((var = lmm_get_var_from_cnst(p_model->p_maxminSystem, p_constraint, &elem))) {
546 action = (NetworkCm02ActionLmmPtr) lmm_variable_id(var);
547 action->m_weight += delta;
548 if (!action->m_suspended)
549 lmm_update_variable_weight(p_model->p_maxminSystem, action->p_variable, action->m_weight);
552 if (tmgr_trace_event_free(event_type))
553 p_power.event = NULL;
554 } else if (event_type == p_latEvent) {
555 double delta = value - m_latCurrent;
556 lmm_variable_t var = NULL;
557 lmm_element_t elem = NULL;
558 NetworkCm02ActionLmmPtr action = NULL;
560 m_latCurrent = value;
561 while ((var = lmm_get_var_from_cnst(p_model->p_maxminSystem, p_constraint, &elem))) {
562 action = (NetworkCm02ActionLmmPtr) lmm_variable_id(var);
563 action->m_latCurrent += delta;
564 action->m_weight += delta;
565 if (action->m_rate < 0)
566 lmm_update_variable_bound(p_model->p_maxminSystem, action->p_variable, sg_tcp_gamma / (2.0 * action->m_latCurrent));
568 lmm_update_variable_bound(p_model->p_maxminSystem, action->p_variable,
569 min(action->m_rate, sg_tcp_gamma / (2.0 * action->m_latCurrent)));
571 if (action->m_rate < sg_tcp_gamma / (2.0 * action->m_latCurrent)) {
572 XBT_INFO("Flow is limited BYBANDWIDTH");
574 XBT_INFO("Flow is limited BYLATENCY, latency of flow is %f",
575 action->m_latCurrent);
578 if (!action->m_suspended)
579 lmm_update_variable_weight(p_model->p_maxminSystem, action->p_variable, action->m_weight);
582 if (tmgr_trace_event_free(event_type))
584 } else if (event_type == p_stateEvent) {
586 p_stateCurrent = SURF_RESOURCE_ON;
588 lmm_constraint_t cnst = p_constraint;
589 lmm_variable_t var = NULL;
590 lmm_element_t elem = NULL;
592 p_stateCurrent = SURF_RESOURCE_OFF;
593 while ((var = lmm_get_var_from_cnst(p_model->p_maxminSystem, cnst, &elem))) {
594 ActionPtr action = (ActionPtr) lmm_variable_id(var);
596 if (action->getState() == SURF_ACTION_RUNNING ||
597 action->getState() == SURF_ACTION_READY) {
598 action->m_finish = date;
599 action->setState(SURF_ACTION_FAILED);
603 if (tmgr_trace_event_free(event_type))
606 XBT_CRITICAL("Unknown event ! \n");
611 ("There were a resource state event, need to update actions related to the constraint (%p)",
619 void NetworkCm02ActionLmm::updateRemainingLazy(double now)
623 if (m_suspended != 0)
626 delta = now - m_lastUpdate;
629 XBT_DEBUG("Updating action(%p): remains was %lf, last_update was: %lf", this, m_remains, m_lastUpdate);
630 double_update(&(m_remains), m_lastValue * delta);
632 XBT_DEBUG("Updating action(%p): remains is now %lf", this, m_remains);
635 if (m_maxDuration != NO_MAX_DURATION)
636 double_update(&m_maxDuration, delta);
638 if (m_remains <= 0 &&
639 (lmm_get_variable_weight(p_variable) > 0)) {
640 m_finish = surf_get_clock();
641 setState(SURF_ACTION_DONE);
643 heapRemove(p_model->p_actionHeap);
644 } else if (((m_maxDuration != NO_MAX_DURATION)
645 && (m_maxDuration <= 0))) {
646 m_finish = surf_get_clock();
647 setState(SURF_ACTION_DONE);
648 heapRemove(p_model->p_actionHeap);
652 m_lastValue = lmm_variable_getvalue(p_variable);
654 void NetworkCm02ActionLmm::recycle()