3 * Network with improved management of tasks, IM (Improved Management).
4 * Uses a heap to store actions so that the share_resources is faster.
5 * This model automatically sets the selective update flag to 1 and is
6 * highly dependent on the maxmin lmm module.
9 /* Copyright (c) 2009, 2010, 2011. The SimGrid Team.
10 * All rights reserved. */
12 /* This program is free software; you can redistribute it and/or modify it
13 * under the terms of the license (GNU LGPL) which comes with this package. */
17 #include "surf_private.h"
19 #include "maxmin_private.h"
22 #define GENERIC_ACTION(action) action->generic_action
25 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_network_im, surf,
26 "Logging specific to the SURF network module");
29 enum heap_action_type{
36 typedef struct surf_action_network_CM02_im {
37 s_surf_action_t generic_action;
38 s_xbt_swag_hookup_t action_list_hookup;
42 lmm_variable_t variable;
44 #ifdef HAVE_LATENCY_BOUND_TRACKING
53 enum heap_action_type hat;
55 } s_surf_action_network_CM02_im_t, *surf_action_network_CM02_im_t;
58 typedef struct network_link_CM02_im {
59 s_surf_resource_lmm_t lmm_resource; /* must remain first to be added to a trace */
61 /* Using this object with the public part of
62 model does not make sense */
64 tmgr_trace_event_t lat_event;
65 } s_link_CM02_im_t, *link_CM02_im_t;
74 extern surf_model_t surf_network_model;
75 static lmm_system_t network_maxmin_system = NULL;
76 static void (*network_solve) (lmm_system_t) = NULL;
78 extern double sg_latency_factor;
79 extern double sg_bandwidth_factor;
80 extern double sg_weight_S_parameter;
82 extern double sg_tcp_gamma;
83 extern int sg_network_fullduplex;
86 static void im_net_action_recycle(surf_action_t action);
87 static int im_net_get_link_latency_limited(surf_action_t action);
88 static int im_net_action_is_suspended(surf_action_t action);
89 static double im_net_action_get_remains(surf_action_t action);
90 static void im_net_action_set_max_duration(surf_action_t action, double duration);
91 static void surf_network_model_init_CM02_im(const char *filename);
92 static void im_net_update_actions_state(double now, double delta);
93 static void update_action_remaining(double now);
95 static xbt_swag_t im_net_modified_set = NULL;
96 static xbt_heap_t im_net_action_heap = NULL;
97 xbt_swag_t keep_track = NULL;
98 extern int sg_maxmin_selective_update;
100 /* added to manage the communication action's heap */
101 static void im_net_action_update_index_heap(void *action, int i)
103 ((surf_action_network_CM02_im_t) action)->index_heap = i;
106 /* insert action on heap using a given key and a hat (heap_action_type)
107 * a hat can be of three types for communications:
109 * NORMAL = this is a normal heap entry stating the date to finish transmitting
110 * LATENCY = this is a heap entry to warn us when the latency is payed
111 * MAX_DURATION =this is a heap entry to warn us when the max_duration limit is reached
113 static void heap_insert(surf_action_network_CM02_im_t action, double key, enum heap_action_type hat){
115 xbt_heap_push(im_net_action_heap, action, key);
118 static void heap_remove(surf_action_network_CM02_im_t action){
120 if(((surf_action_network_CM02_im_t) action)->index_heap >= 0){
121 xbt_heap_remove(im_net_action_heap,action->index_heap);
125 /******************************************************************************/
126 /* Factors callbacks */
127 /******************************************************************************/
128 static double im_constant_latency_factor(double size)
130 return sg_latency_factor;
133 static double im_constant_bandwidth_factor(double size)
135 return sg_bandwidth_factor;
138 static double im_constant_bandwidth_constraint(double rate, double bound,
145 static double (*latency_factor_callback) (double) =
146 &im_constant_latency_factor;
147 static double (*bandwidth_factor_callback) (double) =
148 &im_constant_bandwidth_factor;
149 static double (*bandwidth_constraint_callback) (double, double, double) =
150 &im_constant_bandwidth_constraint;
153 static link_CM02_im_t im_net_link_new(char *name,
155 tmgr_trace_t bw_trace,
157 tmgr_trace_t lat_trace,
158 e_surf_resource_state_t
160 tmgr_trace_t state_trace,
161 e_surf_link_sharing_policy_t
162 policy, xbt_dict_t properties)
164 link_CM02_im_t nw_link = (link_CM02_im_t)
165 surf_resource_lmm_new(sizeof(s_link_CM02_im_t),
166 surf_network_model, name, properties,
167 network_maxmin_system,
168 sg_bandwidth_factor * bw_initial,
170 state_initial, state_trace,
171 bw_initial, bw_trace);
173 xbt_assert1(!xbt_dict_get_or_null
174 (surf_network_model->resource_set, name),
175 "Link '%s' declared several times in the platform file.",
178 nw_link->lat_current = lat_initial;
181 tmgr_history_add_trace(history, lat_trace, 0.0, 0, nw_link);
183 if (policy == SURF_LINK_FATPIPE)
184 lmm_constraint_shared(nw_link->lmm_resource.constraint);
186 xbt_dict_set(surf_network_model->resource_set, name, nw_link,
189 TRACE_surf_link_declaration(nw_link, name, bw_initial, lat_initial);
195 static void im_net_parse_link_init(void)
199 tmgr_trace_t bw_trace;
201 tmgr_trace_t lat_trace;
202 e_surf_resource_state_t state_initial_link = SURF_RESOURCE_ON;
203 e_surf_link_sharing_policy_t policy_initial_link = SURF_LINK_SHARED;
204 tmgr_trace_t state_trace;
205 DEBUG0("link_CM02_im");
206 name_link = xbt_strdup(A_surfxml_link_id);
207 surf_parse_get_double(&bw_initial, A_surfxml_link_bandwidth);
208 bw_trace = tmgr_trace_new(A_surfxml_link_bandwidth_file);
209 surf_parse_get_double(&lat_initial, A_surfxml_link_latency);
210 lat_trace = tmgr_trace_new(A_surfxml_link_latency_file);
212 xbt_assert0((A_surfxml_link_state == A_surfxml_link_state_ON)
213 || (A_surfxml_link_state ==
214 A_surfxml_link_state_OFF), "Invalid state");
215 if (A_surfxml_link_state == A_surfxml_link_state_ON)
216 state_initial_link = SURF_RESOURCE_ON;
217 else if (A_surfxml_link_state == A_surfxml_link_state_OFF)
218 state_initial_link = SURF_RESOURCE_OFF;
220 if (A_surfxml_link_sharing_policy == A_surfxml_link_sharing_policy_SHARED)
221 policy_initial_link = SURF_LINK_SHARED;
224 if (A_surfxml_link_sharing_policy == A_surfxml_link_sharing_policy_FATPIPE)
225 policy_initial_link = SURF_LINK_FATPIPE;
226 else if (A_surfxml_link_sharing_policy == A_surfxml_link_sharing_policy_FULLDUPLEX)
227 policy_initial_link = SURF_LINK_FULLDUPLEX;
230 state_trace = tmgr_trace_new(A_surfxml_link_state_file);
232 if(policy_initial_link == SURF_LINK_FULLDUPLEX)
234 im_net_link_new(bprintf("%s_UP",name_link), bw_initial, bw_trace,
235 lat_initial, lat_trace, state_initial_link, state_trace,
236 policy_initial_link, xbt_dict_new());
237 im_net_link_new(bprintf("%s_DOWN",name_link), bw_initial, bw_trace,
238 lat_initial, lat_trace, state_initial_link, state_trace,
239 policy_initial_link, xbt_dict_new());
243 im_net_link_new(name_link, bw_initial, bw_trace,
244 lat_initial, lat_trace, state_initial_link, state_trace,
245 policy_initial_link, xbt_dict_new());
250 static void im_net_create_resource(char *name,
252 tmgr_trace_t bw_trace,
254 tmgr_trace_t lat_trace,
255 e_surf_resource_state_t
257 tmgr_trace_t state_trace,
258 e_surf_link_sharing_policy_t policy,
259 xbt_dict_t properties)
261 im_net_link_new(name, bw_initial, bw_trace,
262 lat_initial, lat_trace, state_initial, state_trace,
263 policy, xbt_dict_new());
266 static void im_net_add_traces(void)
268 xbt_dict_cursor_t cursor = NULL;
269 char *trace_name, *elm;
271 static int called = 0;
276 /* connect all traces relative to network */
277 xbt_dict_foreach(trace_connect_list_link_avail, cursor, trace_name, elm) {
278 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
279 link_CM02_im_t link =
280 xbt_dict_get_or_null(surf_network_model->resource_set, elm);
282 xbt_assert2(link, "Cannot connect trace %s to link %s: link undefined",
285 "Cannot connect trace %s to link %s: trace undefined",
288 link->lmm_resource.state_event =
289 tmgr_history_add_trace(history, trace, 0.0, 0, link);
292 xbt_dict_foreach(trace_connect_list_bandwidth, cursor, trace_name, elm) {
293 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
294 link_CM02_im_t link =
295 xbt_dict_get_or_null(surf_network_model->resource_set, elm);
297 xbt_assert2(link, "Cannot connect trace %s to link %s: link undefined",
300 "Cannot connect trace %s to link %s: trace undefined",
303 link->lmm_resource.power.event =
304 tmgr_history_add_trace(history, trace, 0.0, 0, link);
307 xbt_dict_foreach(trace_connect_list_latency, cursor, trace_name, elm) {
308 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
309 link_CM02_im_t link =
310 xbt_dict_get_or_null(surf_network_model->resource_set, elm);
312 xbt_assert2(link, "Cannot connect trace %s to link %s: link undefined",
315 "Cannot connect trace %s to link %s: trace undefined",
318 link->lat_event = tmgr_history_add_trace(history, trace, 0.0, 0, link);
322 static void im_net_define_callbacks(const char *file)
324 /* Figuring out the network links */
325 surfxml_add_callback(STag_surfxml_link_cb_list, &im_net_parse_link_init);
326 surfxml_add_callback(ETag_surfxml_platform_cb_list, &im_net_add_traces);
329 static int im_net_resource_used(void *resource_id)
331 return lmm_constraint_used(network_maxmin_system,
332 ((surf_resource_lmm_t)
333 resource_id)->constraint);
336 static int im_net_action_unref(surf_action_t action)
339 if (!action->refcount) {
340 xbt_swag_remove(action, action->state_set);
341 if (((surf_action_network_CM02_im_t) action)->variable){
342 lmm_variable_free(network_maxmin_system,
343 ((surf_action_network_CM02_im_t) action)->variable);
345 // remove action from the heap
346 heap_remove((surf_action_network_CM02_im_t) action);
348 xbt_swag_remove(action, im_net_modified_set);
350 xbt_free(((surf_action_network_CM02_im_t) action)->src_name);
351 xbt_free(((surf_action_network_CM02_im_t) action)->dst_name);
352 if (action->category)
353 xbt_free(action->category);
364 static void im_net_action_cancel(surf_action_t action)
366 surf_network_model->action_state_set(action, SURF_ACTION_FAILED);
368 xbt_swag_remove(action, im_net_modified_set);
369 // remove action from the heap
370 heap_remove((surf_action_network_CM02_im_t) action);
373 void im_net_action_recycle(surf_action_t action)
378 #ifdef HAVE_LATENCY_BOUND_TRACKING
379 int im_net_get_link_latency_limited(surf_action_t action)
381 return action->latency_limited;
385 double im_net_action_get_remains(surf_action_t action)
387 /* update remains before return it */
388 update_action_remaining(surf_get_clock());
389 return action->remains;
392 static void update_action_remaining(double now){
393 surf_action_network_CM02_im_t action = NULL;
396 xbt_swag_foreach(action, im_net_modified_set) {
398 if(action->suspended != 0){
402 delta = now - action->last_update;
404 double_update(&(action->generic_action.remains),
405 lmm_variable_getvalue(action->variable) * delta);
407 if (action->generic_action.max_duration != NO_MAX_DURATION)
408 double_update(&(action->generic_action.max_duration), delta);
410 if ((action->generic_action.remains <= 0) &&
411 (lmm_get_variable_weight(action->variable) > 0)) {
412 action->generic_action.finish = surf_get_clock();
413 surf_network_model->action_state_set((surf_action_t) action,
416 } else if ((action->generic_action.max_duration != NO_MAX_DURATION)
417 && (action->generic_action.max_duration <= 0)) {
418 action->generic_action.finish = surf_get_clock();
419 surf_network_model->action_state_set((surf_action_t) action,
424 action->last_update = now;
428 static double im_net_share_resources(double now)
430 surf_action_network_CM02_im_t action = NULL;
434 DEBUG1("Before share resources, the size of modified actions set is %d", xbt_swag_size(im_net_modified_set));
435 update_action_remaining(now);
437 lmm_solve(network_maxmin_system);
439 DEBUG1("After share resources, The size of modified actions set is %d", xbt_swag_size(im_net_modified_set));
441 xbt_swag_foreach(action, im_net_modified_set) {
442 if (GENERIC_ACTION(action).state_set != surf_network_model->states.running_action_set){
446 /* bogus priority, skip it */
447 if (GENERIC_ACTION(action).priority <= 0){
452 value = lmm_variable_getvalue(action->variable);
454 if (GENERIC_ACTION(action).remains > 0) {
455 value = GENERIC_ACTION(action).remains / value;
463 if ((GENERIC_ACTION(action).max_duration != NO_MAX_DURATION)
465 || GENERIC_ACTION(action).start +
466 GENERIC_ACTION(action).max_duration < min)){
467 min = GENERIC_ACTION(action).start +
468 GENERIC_ACTION(action).max_duration;
471 DEBUG4("Action(%p) Start %lf Finish %lf Max_duration %lf", action,
472 GENERIC_ACTION(action).start, now + value,
473 GENERIC_ACTION(action).max_duration);
477 if (action->index_heap >= 0) {
478 heap_remove((surf_action_network_CM02_im_t) action);
482 heap_insert((surf_action_network_CM02_im_t) action, min, NORMAL);
483 DEBUG3("Insert at heap action(%p) min %lf now %lf", action, min, now);
487 //hereafter must have already the min value for this resource model
488 if(xbt_heap_size(im_net_action_heap) > 0 ){
489 min = xbt_heap_maxkey(im_net_action_heap) - now ;
494 DEBUG1("The minimum with the HEAP %lf", min);
500 static void im_net_update_actions_state(double now, double delta)
502 surf_action_network_CM02_im_t action = NULL;
504 while ((xbt_heap_size(im_net_action_heap) > 0)
505 && (double_equals(xbt_heap_maxkey(im_net_action_heap), now))) {
506 action = xbt_heap_pop(im_net_action_heap);
507 DEBUG1("Action %p: finish", action);
508 GENERIC_ACTION(action).finish = surf_get_clock();
510 // if I am wearing a latency heat
511 if( action->hat == LATENCY){
512 lmm_update_variable_weight(network_maxmin_system, action->variable,
515 action->last_update = surf_get_clock();
517 DEBUG1("Action (%p) is not limited by latency anymore", action);
518 #ifdef HAVE_LATENCY_BOUND_TRACKING
519 GENERIC_ACTION(action).latency_limited = 0;
522 // if I am wearing a max_duration or normal hat
523 }else if( action->hat == MAX_DURATION || action->hat == NORMAL ){
524 // no need to communicate anymore
525 // assume that flows that reached max_duration have remaining of 0
526 GENERIC_ACTION(action).remains = 0;
527 action->generic_action.finish = surf_get_clock();
528 surf_network_model->action_state_set((surf_action_t) action,
536 static void im_net_update_resource_state(void *id,
537 tmgr_trace_event_t event_type,
538 double value, double date)
540 link_CM02_im_t nw_link = id;
541 /* printf("[" "%lg" "] Asking to update network card \"%s\" with value " */
542 /* "%lg" " for event %p\n", surf_get_clock(), nw_link->name, */
543 /* value, event_type); */
545 if (event_type == nw_link->lmm_resource.power.event) {
547 sg_weight_S_parameter / value - sg_weight_S_parameter /
548 (nw_link->lmm_resource.power.peak *
549 nw_link->lmm_resource.power.scale);
550 lmm_variable_t var = NULL;
551 lmm_element_t elem = NULL;
552 surf_action_network_CM02_im_t action = NULL;
554 nw_link->lmm_resource.power.peak = value;
555 lmm_update_constraint_bound(network_maxmin_system,
556 nw_link->lmm_resource.constraint,
557 sg_bandwidth_factor *
558 (nw_link->lmm_resource.power.peak *
559 nw_link->lmm_resource.power.scale));
561 TRACE_surf_link_set_bandwidth(date, nw_link,
562 sg_bandwidth_factor *
563 (nw_link->lmm_resource.power.peak *
564 nw_link->lmm_resource.power.scale));
566 if (sg_weight_S_parameter > 0) {
567 while ((var = lmm_get_var_from_cnst
568 (network_maxmin_system, nw_link->lmm_resource.constraint,
570 action = lmm_variable_id(var);
571 action->weight += delta;
572 if (!(action->suspended))
573 lmm_update_variable_weight(network_maxmin_system,
574 action->variable, action->weight);
577 if (tmgr_trace_event_free(event_type))
578 nw_link->lmm_resource.power.event = NULL;
579 } else if (event_type == nw_link->lat_event) {
580 double delta = value - nw_link->lat_current;
581 lmm_variable_t var = NULL;
582 lmm_element_t elem = NULL;
583 surf_action_network_CM02_im_t action = NULL;
585 nw_link->lat_current = value;
586 while ((var = lmm_get_var_from_cnst
587 (network_maxmin_system, nw_link->lmm_resource.constraint,
589 action = lmm_variable_id(var);
590 action->lat_current += delta;
591 action->weight += delta;
592 if (action->rate < 0)
593 lmm_update_variable_bound(network_maxmin_system, action->variable,
594 sg_tcp_gamma / (2.0 *
595 action->lat_current));
597 lmm_update_variable_bound(network_maxmin_system, action->variable,
599 sg_tcp_gamma / (2.0 *
600 action->lat_current)));
602 if (action->rate < sg_tcp_gamma / (2.0 * action->lat_current)) {
603 INFO0("Flow is limited BYBANDWIDTH");
605 INFO1("Flow is limited BYLATENCY, latency of flow is %f",
606 action->lat_current);
609 if (!(action->suspended))
610 lmm_update_variable_weight(network_maxmin_system, action->variable,
614 if (tmgr_trace_event_free(event_type))
615 nw_link->lat_event = NULL;
616 } else if (event_type == nw_link->lmm_resource.state_event) {
618 nw_link->lmm_resource.state_current = SURF_RESOURCE_ON;
620 lmm_constraint_t cnst = nw_link->lmm_resource.constraint;
621 lmm_variable_t var = NULL;
622 lmm_element_t elem = NULL;
624 nw_link->lmm_resource.state_current = SURF_RESOURCE_OFF;
625 while ((var = lmm_get_var_from_cnst
626 (network_maxmin_system, cnst, &elem))) {
627 surf_action_t action = lmm_variable_id(var);
629 if (surf_action_state_get(action) == SURF_ACTION_RUNNING ||
630 surf_action_state_get(action) == SURF_ACTION_READY) {
631 action->finish = date;
632 surf_network_model->action_state_set(action, SURF_ACTION_FAILED);
636 if (tmgr_trace_event_free(event_type))
637 nw_link->lmm_resource.state_event = NULL;
639 CRITICAL0("Unknown event ! \n");
643 DEBUG1("There were a resource state event, need to update actions related to the constraint (%p)", nw_link->lmm_resource.constraint);
648 static surf_action_t im_net_communicate(const char *src_name,
649 const char *dst_name, double size,
655 surf_action_network_CM02_im_t action = NULL;
656 double bandwidth_bound;
657 /* LARGE PLATFORMS HACK:
658 Add a link_CM02_im_t *link and a int link_nb to network_card_CM02_im_t. It will represent local links for this node
659 Use the cluster_id for ->id */
661 xbt_dynar_t back_route = NULL;
662 int constraints_per_variable = 0;
663 // I will need this route for some time so let's call get_route_no_cleanup
664 xbt_dynar_t route = global_routing->get_route_no_cleanup(src_name, dst_name);
667 if (sg_network_fullduplex == 1) {
668 back_route = global_routing->get_route(dst_name, src_name);
671 /* LARGE PLATFORMS HACK:
672 total_route_size = route_size + src->link_nb + dst->nb */
674 XBT_IN4("(%s,%s,%g,%g)", src_name, dst_name, size, rate);
675 /* LARGE PLATFORMS HACK:
676 assert on total_route_size */
677 xbt_assert2(xbt_dynar_length(route),
678 "You're trying to send data from %s to %s but there is no connection between these two hosts.",
681 xbt_dynar_foreach(route, i, link) {
682 if (link->lmm_resource.state_current == SURF_RESOURCE_OFF) {
688 surf_action_new(sizeof(s_surf_action_network_CM02_im_t), size,
689 surf_network_model, failed);
692 #ifdef HAVE_LATENCY_BOUND_TRACKING
693 (action->generic_action).latency_limited = 0;
696 xbt_swag_insert(action, action->generic_action.state_set);
698 action->index_heap = -1;
699 action->latency = 0.0;
700 action->weight = 0.0;
701 action->last_update = surf_get_clock();
703 bandwidth_bound = -1.0;
704 xbt_dynar_foreach(route, i, link) {
705 action->latency += link->lat_current;
708 sg_weight_S_parameter /
709 (link->lmm_resource.power.peak * link->lmm_resource.power.scale);
710 if (bandwidth_bound < 0.0)
712 (*bandwidth_factor_callback) (size) *
713 (link->lmm_resource.power.peak * link->lmm_resource.power.scale);
717 (*bandwidth_factor_callback) (size) *
718 (link->lmm_resource.power.peak *
719 link->lmm_resource.power.scale));
721 /* LARGE PLATFORMS HACK:
722 Add src->link and dst->link latencies */
723 action->lat_current = action->latency;
724 action->latency *= (*latency_factor_callback) (size);
726 (*bandwidth_constraint_callback) (action->rate, bandwidth_bound,
729 /* LARGE PLATFORMS HACK:
730 lmm_variable_new(..., total_route_size) */
731 if (back_route != NULL) {
732 constraints_per_variable =
733 xbt_dynar_length(route) + xbt_dynar_length(back_route);
735 constraints_per_variable = xbt_dynar_length(route);
738 if (action->latency > 0){
740 lmm_variable_new(network_maxmin_system, action, 0.0, -1.0,
741 constraints_per_variable);
742 // add to the heap the event when the latency is payed
743 DEBUG2("Added action (%p) one latency event at date %f", action, action->latency + action->last_update);
744 heap_insert(action, action->latency + action->last_update, LATENCY);
745 #ifdef HAVE_LATENCY_BOUND_TRACKING
746 (action->generic_action).latency_limited = 1;
751 lmm_variable_new(network_maxmin_system, action, 1.0, -1.0,
752 constraints_per_variable);
754 if (action->rate < 0) {
755 if (action->lat_current > 0)
756 lmm_update_variable_bound(network_maxmin_system, action->variable,
757 sg_tcp_gamma / (2.0 *
758 action->lat_current));
760 lmm_update_variable_bound(network_maxmin_system, action->variable,
763 if (action->lat_current > 0)
764 lmm_update_variable_bound(network_maxmin_system, action->variable,
766 sg_tcp_gamma / (2.0 *
767 action->lat_current)));
769 lmm_update_variable_bound(network_maxmin_system, action->variable,
773 xbt_dynar_foreach(route, i, link) {
774 lmm_expand(network_maxmin_system, link->lmm_resource.constraint,
775 action->variable, 1.0);
778 if (sg_network_fullduplex == 1) {
779 DEBUG1("Fullduplex active adding backward flow using 5%c", '%');
780 xbt_dynar_foreach(back_route, i, link) {
781 lmm_expand(network_maxmin_system, link->lmm_resource.constraint,
782 action->variable, .05);
786 /* LARGE PLATFORMS HACK:
787 expand also with src->link and dst->link */
789 action->src_name = xbt_new(char, strlen(src_name) + 1);
790 strncpy(action->src_name, src_name, strlen(src_name) + 1);
792 action->dst_name = xbt_new(char, strlen(dst_name) + 1);
793 strncpy(action->dst_name, dst_name, strlen(dst_name) + 1);
796 xbt_dynar_free(&route);
799 return (surf_action_t) action;
802 static xbt_dynar_t im_net_get_route(const char *src, const char *dst)
804 return global_routing->get_route(src, dst);
807 static double im_net_get_link_bandwidth(const void *link)
809 surf_resource_lmm_t lmm = (surf_resource_lmm_t) link;
810 return lmm->power.peak * lmm->power.scale;
813 static double im_net_get_link_latency(const void *link)
815 return ((link_CM02_im_t) link)->lat_current;
818 static int im_net_link_shared(const void *link)
821 lmm_constraint_is_shared(((surf_resource_lmm_t) link)->constraint);
824 static void im_net_action_suspend(surf_action_t action)
826 ((surf_action_network_CM02_im_t) action)->suspended = 1;
827 lmm_update_variable_weight(network_maxmin_system,
828 ((surf_action_network_CM02_im_t)
829 action)->variable, 0.0);
831 // remove action from the heap
832 heap_remove((surf_action_network_CM02_im_t) action);
835 static void im_net_action_resume(surf_action_t action)
837 if (((surf_action_network_CM02_im_t) action)->suspended) {
838 lmm_update_variable_weight(network_maxmin_system,
839 ((surf_action_network_CM02_im_t)
841 ((surf_action_network_CM02_im_t)
843 ((surf_action_network_CM02_im_t) action)->suspended = 0;
844 // remove action from the heap
845 heap_remove((surf_action_network_CM02_im_t) action);
849 static int im_net_action_is_suspended(surf_action_t action)
851 return ((surf_action_network_CM02_im_t) action)->suspended;
854 void im_net_action_set_max_duration(surf_action_t action, double duration)
856 action->max_duration = duration;
857 // remove action from the heap
858 heap_remove((surf_action_network_CM02_im_t) action);
862 static void im_net_finalize(void)
864 surf_model_exit(surf_network_model);
865 surf_network_model = NULL;
867 global_routing->finalize();
869 lmm_system_free(network_maxmin_system);
870 network_maxmin_system = NULL;
872 xbt_heap_free(im_net_action_heap);
873 xbt_swag_free(im_net_modified_set);
877 static void im_surf_network_model_init_internal(void)
879 s_surf_action_network_CM02_im_t comm;
880 INFO0("You are using the UNSAFE lazy management optimization, I hope you know what you are doing.");
881 INFO0("====> For now this optimization is only available for LV08_im network model.");
883 surf_network_model = surf_model_init();
885 surf_network_model->name = "network";
886 surf_network_model->action_unref = im_net_action_unref;
887 surf_network_model->action_cancel = im_net_action_cancel;
888 surf_network_model->action_recycle = im_net_action_recycle;
889 surf_network_model->get_remains = im_net_action_get_remains;
890 #ifdef HAVE_LATENCY_BOUND_TRACKING
891 surf_network_model->get_latency_limited = im_net_get_link_latency_limited;
894 surf_network_model->model_private->resource_used = im_net_resource_used;
895 surf_network_model->model_private->share_resources = im_net_share_resources;
896 surf_network_model->model_private->update_actions_state =
897 im_net_update_actions_state;
898 surf_network_model->model_private->update_resource_state =
899 im_net_update_resource_state;
900 surf_network_model->model_private->finalize = im_net_finalize;
902 surf_network_model->suspend = im_net_action_suspend;
903 surf_network_model->resume = im_net_action_resume;
904 surf_network_model->is_suspended = im_net_action_is_suspended;
905 surf_cpu_model->set_max_duration = im_net_action_set_max_duration;
907 surf_network_model->extension.network.communicate = im_net_communicate;
908 surf_network_model->extension.network.get_route = im_net_get_route;
909 surf_network_model->extension.network.get_link_bandwidth =
910 im_net_get_link_bandwidth;
911 surf_network_model->extension.network.get_link_latency =
912 im_net_get_link_latency;
913 surf_network_model->extension.network.link_shared = im_net_link_shared;
914 surf_network_model->extension.network.add_traces = im_net_add_traces;
915 surf_network_model->extension.network.create_resource =
916 im_net_create_resource;
919 if (!network_maxmin_system){
920 sg_maxmin_selective_update = 1;
921 network_maxmin_system = lmm_system_new();
923 im_net_action_heap = xbt_heap_new(8,NULL);
925 xbt_heap_set_update_callback(im_net_action_heap, im_net_action_update_index_heap);
927 routing_model_create(sizeof(link_CM02_im_t),
928 (void *) im_net_link_new(xbt_strdup("__loopback__"),
929 498000000, NULL, 0.000015, NULL,
930 SURF_RESOURCE_ON, NULL,
931 SURF_LINK_FATPIPE, NULL));
932 im_net_modified_set =
933 xbt_swag_new(xbt_swag_offset(comm, action_list_hookup));
934 keep_track = im_net_modified_set;
939 /************************************************************************/
940 /* New model based on optimizations discussed during this thesis */
941 /************************************************************************/
942 void im_surf_network_model_init_LegrandVelho(const char *filename)
945 if (surf_network_model)
947 im_surf_network_model_init_internal();
948 im_net_define_callbacks(filename);
949 xbt_dynar_push(model_list, &surf_network_model);
950 network_solve = lmm_solve;
952 xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor", 10.4);
953 xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
955 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 8775);
957 update_model_description(surf_network_model_description,
958 "LV08_im", surf_network_model);