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_im_maxmin_system = NULL;
76 static void (*network_im_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 (*im_latency_factor_callback) (double) =
146 &im_constant_latency_factor;
147 static double (*im_bandwidth_factor_callback) (double) =
148 &im_constant_bandwidth_factor;
149 static double (*im_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_im_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,
193 static void im_net_parse_link_init(void)
197 tmgr_trace_t bw_trace;
199 tmgr_trace_t lat_trace;
200 e_surf_resource_state_t state_initial_link = SURF_RESOURCE_ON;
201 e_surf_link_sharing_policy_t policy_initial_link = SURF_LINK_SHARED;
202 tmgr_trace_t state_trace;
203 DEBUG0("link_CM02_im");
204 name_link = xbt_strdup(A_surfxml_link_id);
205 surf_parse_get_double(&bw_initial, A_surfxml_link_bandwidth);
206 bw_trace = tmgr_trace_new(A_surfxml_link_bandwidth_file);
207 surf_parse_get_double(&lat_initial, A_surfxml_link_latency);
208 lat_trace = tmgr_trace_new(A_surfxml_link_latency_file);
210 xbt_assert0((A_surfxml_link_state == A_surfxml_link_state_ON)
211 || (A_surfxml_link_state ==
212 A_surfxml_link_state_OFF), "Invalid state");
213 if (A_surfxml_link_state == A_surfxml_link_state_ON)
214 state_initial_link = SURF_RESOURCE_ON;
215 else if (A_surfxml_link_state == A_surfxml_link_state_OFF)
216 state_initial_link = SURF_RESOURCE_OFF;
218 if (A_surfxml_link_sharing_policy == A_surfxml_link_sharing_policy_SHARED)
219 policy_initial_link = SURF_LINK_SHARED;
222 if (A_surfxml_link_sharing_policy == A_surfxml_link_sharing_policy_FATPIPE)
223 policy_initial_link = SURF_LINK_FATPIPE;
224 else if (A_surfxml_link_sharing_policy == A_surfxml_link_sharing_policy_FULLDUPLEX)
225 policy_initial_link = SURF_LINK_FULLDUPLEX;
228 state_trace = tmgr_trace_new(A_surfxml_link_state_file);
230 if(policy_initial_link == SURF_LINK_FULLDUPLEX)
232 im_net_link_new(bprintf("%s_UP",name_link), bw_initial, bw_trace,
233 lat_initial, lat_trace, state_initial_link, state_trace,
234 policy_initial_link, xbt_dict_new());
235 im_net_link_new(bprintf("%s_DOWN",name_link), bw_initial, bw_trace,
236 lat_initial, lat_trace, state_initial_link, state_trace,
237 policy_initial_link, xbt_dict_new());
241 im_net_link_new(name_link, bw_initial, bw_trace,
242 lat_initial, lat_trace, state_initial_link, state_trace,
243 policy_initial_link, xbt_dict_new());
248 static void im_net_create_resource(char *name,
250 tmgr_trace_t bw_trace,
252 tmgr_trace_t lat_trace,
253 e_surf_resource_state_t
255 tmgr_trace_t state_trace,
256 e_surf_link_sharing_policy_t policy,
257 xbt_dict_t properties)
259 im_net_link_new(name, bw_initial, bw_trace,
260 lat_initial, lat_trace, state_initial, state_trace,
261 policy, xbt_dict_new());
264 static void im_net_add_traces(void)
266 xbt_dict_cursor_t cursor = NULL;
267 char *trace_name, *elm;
269 static int called = 0;
274 /* connect all traces relative to network */
275 xbt_dict_foreach(trace_connect_list_link_avail, cursor, trace_name, elm) {
276 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
277 link_CM02_im_t link =
278 xbt_dict_get_or_null(surf_network_model->resource_set, elm);
280 xbt_assert2(link, "Cannot connect trace %s to link %s: link undefined",
283 "Cannot connect trace %s to link %s: trace undefined",
286 link->lmm_resource.state_event =
287 tmgr_history_add_trace(history, trace, 0.0, 0, link);
290 xbt_dict_foreach(trace_connect_list_bandwidth, cursor, trace_name, elm) {
291 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
292 link_CM02_im_t link =
293 xbt_dict_get_or_null(surf_network_model->resource_set, elm);
295 xbt_assert2(link, "Cannot connect trace %s to link %s: link undefined",
298 "Cannot connect trace %s to link %s: trace undefined",
301 link->lmm_resource.power.event =
302 tmgr_history_add_trace(history, trace, 0.0, 0, link);
305 xbt_dict_foreach(trace_connect_list_latency, cursor, trace_name, elm) {
306 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
307 link_CM02_im_t link =
308 xbt_dict_get_or_null(surf_network_model->resource_set, elm);
310 xbt_assert2(link, "Cannot connect trace %s to link %s: link undefined",
313 "Cannot connect trace %s to link %s: trace undefined",
316 link->lat_event = tmgr_history_add_trace(history, trace, 0.0, 0, link);
320 static void im_net_define_callbacks(const char *file)
322 /* Figuring out the network links */
323 surfxml_add_callback(STag_surfxml_link_cb_list, &im_net_parse_link_init);
324 surfxml_add_callback(ETag_surfxml_platform_cb_list, &im_net_add_traces);
327 static int im_net_resource_used(void *resource_id)
329 return lmm_constraint_used(network_im_maxmin_system,
330 ((surf_resource_lmm_t)
331 resource_id)->constraint);
334 static int im_net_action_unref(surf_action_t action)
337 if (!action->refcount) {
338 xbt_swag_remove(action, action->state_set);
339 if (((surf_action_network_CM02_im_t) action)->variable){
340 lmm_variable_free(network_im_maxmin_system,
341 ((surf_action_network_CM02_im_t) action)->variable);
343 // remove action from the heap
344 heap_remove((surf_action_network_CM02_im_t) action);
346 xbt_swag_remove(action, im_net_modified_set);
348 xbt_free(((surf_action_network_CM02_im_t) action)->src_name);
349 xbt_free(((surf_action_network_CM02_im_t) action)->dst_name);
350 if (action->category)
351 xbt_free(action->category);
362 static void im_net_action_cancel(surf_action_t action)
364 surf_network_model->action_state_set(action, SURF_ACTION_FAILED);
366 xbt_swag_remove(action, im_net_modified_set);
367 // remove action from the heap
368 heap_remove((surf_action_network_CM02_im_t) action);
371 void im_net_action_recycle(surf_action_t action)
376 #ifdef HAVE_LATENCY_BOUND_TRACKING
377 int im_net_get_link_latency_limited(surf_action_t action)
379 return action->latency_limited;
383 double im_net_action_get_remains(surf_action_t action)
385 /* update remains before return it */
386 update_action_remaining(surf_get_clock());
387 return action->remains;
390 static void update_action_remaining(double now){
391 surf_action_network_CM02_im_t action = NULL;
394 xbt_swag_foreach(action, im_net_modified_set) {
396 if(action->suspended != 0){
400 delta = now - action->last_update;
402 double_update(&(action->generic_action.remains),
403 lmm_variable_getvalue(action->variable) * delta);
405 if (action->generic_action.max_duration != NO_MAX_DURATION)
406 double_update(&(action->generic_action.max_duration), delta);
408 if ((action->generic_action.remains <= 0) &&
409 (lmm_get_variable_weight(action->variable) > 0)) {
410 action->generic_action.finish = surf_get_clock();
411 surf_network_model->action_state_set((surf_action_t) action,
414 } else if ((action->generic_action.max_duration != NO_MAX_DURATION)
415 && (action->generic_action.max_duration <= 0)) {
416 action->generic_action.finish = surf_get_clock();
417 surf_network_model->action_state_set((surf_action_t) action,
422 action->last_update = now;
426 static double im_net_share_resources(double now)
428 surf_action_network_CM02_im_t action = NULL;
432 DEBUG1("Before share resources, the size of modified actions set is %d", xbt_swag_size(im_net_modified_set));
433 update_action_remaining(now);
435 lmm_solve(network_im_maxmin_system);
437 DEBUG1("After share resources, The size of modified actions set is %d", xbt_swag_size(im_net_modified_set));
439 xbt_swag_foreach(action, im_net_modified_set) {
440 if (GENERIC_ACTION(action).state_set != surf_network_model->states.running_action_set){
444 /* bogus priority, skip it */
445 if (GENERIC_ACTION(action).priority <= 0){
450 value = lmm_variable_getvalue(action->variable);
452 if (GENERIC_ACTION(action).remains > 0) {
453 value = GENERIC_ACTION(action).remains / value;
461 if ((GENERIC_ACTION(action).max_duration != NO_MAX_DURATION)
463 || GENERIC_ACTION(action).start +
464 GENERIC_ACTION(action).max_duration < min)){
465 min = GENERIC_ACTION(action).start +
466 GENERIC_ACTION(action).max_duration;
469 DEBUG4("Action(%p) Start %lf Finish %lf Max_duration %lf", action,
470 GENERIC_ACTION(action).start, now + value,
471 GENERIC_ACTION(action).max_duration);
475 if (action->index_heap >= 0) {
476 heap_remove((surf_action_network_CM02_im_t) action);
480 heap_insert((surf_action_network_CM02_im_t) action, min, NORMAL);
481 DEBUG3("Insert at heap action(%p) min %lf now %lf", action, min, now);
485 //hereafter must have already the min value for this resource model
486 if(xbt_heap_size(im_net_action_heap) > 0 ){
487 min = xbt_heap_maxkey(im_net_action_heap) - now ;
492 DEBUG1("The minimum with the HEAP %lf", min);
498 static void im_net_update_actions_state(double now, double delta)
500 surf_action_network_CM02_im_t action = NULL;
502 while ((xbt_heap_size(im_net_action_heap) > 0)
503 && (double_equals(xbt_heap_maxkey(im_net_action_heap), now))) {
504 action = xbt_heap_pop(im_net_action_heap);
505 DEBUG1("Action %p: finish", action);
506 GENERIC_ACTION(action).finish = surf_get_clock();
508 // if I am wearing a latency heat
509 if( action->hat == LATENCY){
510 lmm_update_variable_weight(network_im_maxmin_system, action->variable,
513 action->last_update = surf_get_clock();
515 DEBUG1("Action (%p) is not limited by latency anymore", action);
516 #ifdef HAVE_LATENCY_BOUND_TRACKING
517 GENERIC_ACTION(action).latency_limited = 0;
520 // if I am wearing a max_duration or normal hat
521 }else if( action->hat == MAX_DURATION || action->hat == NORMAL ){
522 // no need to communicate anymore
523 // assume that flows that reached max_duration have remaining of 0
524 GENERIC_ACTION(action).remains = 0;
525 action->generic_action.finish = surf_get_clock();
526 surf_network_model->action_state_set((surf_action_t) action,
534 static void im_net_update_resource_state(void *id,
535 tmgr_trace_event_t event_type,
536 double value, double date)
538 link_CM02_im_t nw_link = id;
539 /* printf("[" "%lg" "] Asking to update network card \"%s\" with value " */
540 /* "%lg" " for event %p\n", surf_get_clock(), nw_link->name, */
541 /* value, event_type); */
543 if (event_type == nw_link->lmm_resource.power.event) {
545 sg_weight_S_parameter / value - sg_weight_S_parameter /
546 (nw_link->lmm_resource.power.peak *
547 nw_link->lmm_resource.power.scale);
548 lmm_variable_t var = NULL;
549 lmm_element_t elem = NULL;
550 surf_action_network_CM02_im_t action = NULL;
552 nw_link->lmm_resource.power.peak = value;
553 lmm_update_constraint_bound(network_im_maxmin_system,
554 nw_link->lmm_resource.constraint,
555 sg_bandwidth_factor *
556 (nw_link->lmm_resource.power.peak *
557 nw_link->lmm_resource.power.scale));
559 TRACE_surf_link_set_bandwidth(date, (char *)(((nw_link->lmm_resource).generic_resource).name),
560 sg_bandwidth_factor *
561 (nw_link->lmm_resource.power.peak *
562 nw_link->lmm_resource.power.scale));
564 if (sg_weight_S_parameter > 0) {
565 while ((var = lmm_get_var_from_cnst
566 (network_im_maxmin_system, nw_link->lmm_resource.constraint,
568 action = lmm_variable_id(var);
569 action->weight += delta;
570 if (!(action->suspended))
571 lmm_update_variable_weight(network_im_maxmin_system,
572 action->variable, action->weight);
575 if (tmgr_trace_event_free(event_type))
576 nw_link->lmm_resource.power.event = NULL;
577 } else if (event_type == nw_link->lat_event) {
578 double delta = value - nw_link->lat_current;
579 lmm_variable_t var = NULL;
580 lmm_element_t elem = NULL;
581 surf_action_network_CM02_im_t action = NULL;
583 nw_link->lat_current = value;
584 while ((var = lmm_get_var_from_cnst
585 (network_im_maxmin_system, nw_link->lmm_resource.constraint,
587 action = lmm_variable_id(var);
588 action->lat_current += delta;
589 action->weight += delta;
590 if (action->rate < 0)
591 lmm_update_variable_bound(network_im_maxmin_system, action->variable,
592 sg_tcp_gamma / (2.0 *
593 action->lat_current));
595 lmm_update_variable_bound(network_im_maxmin_system, action->variable,
597 sg_tcp_gamma / (2.0 *
598 action->lat_current)));
600 if (action->rate < sg_tcp_gamma / (2.0 * action->lat_current)) {
601 INFO0("Flow is limited BYBANDWIDTH");
603 INFO1("Flow is limited BYLATENCY, latency of flow is %f",
604 action->lat_current);
607 if (!(action->suspended))
608 lmm_update_variable_weight(network_im_maxmin_system, action->variable,
612 if (tmgr_trace_event_free(event_type))
613 nw_link->lat_event = NULL;
614 } else if (event_type == nw_link->lmm_resource.state_event) {
616 nw_link->lmm_resource.state_current = SURF_RESOURCE_ON;
618 lmm_constraint_t cnst = nw_link->lmm_resource.constraint;
619 lmm_variable_t var = NULL;
620 lmm_element_t elem = NULL;
622 nw_link->lmm_resource.state_current = SURF_RESOURCE_OFF;
623 while ((var = lmm_get_var_from_cnst
624 (network_im_maxmin_system, cnst, &elem))) {
625 surf_action_t action = lmm_variable_id(var);
627 if (surf_action_state_get(action) == SURF_ACTION_RUNNING ||
628 surf_action_state_get(action) == SURF_ACTION_READY) {
629 action->finish = date;
630 surf_network_model->action_state_set(action, SURF_ACTION_FAILED);
634 if (tmgr_trace_event_free(event_type))
635 nw_link->lmm_resource.state_event = NULL;
637 CRITICAL0("Unknown event ! \n");
641 DEBUG1("There were a resource state event, need to update actions related to the constraint (%p)", nw_link->lmm_resource.constraint);
646 static surf_action_t im_net_communicate(const char *src_name,
647 const char *dst_name, double size,
653 surf_action_network_CM02_im_t action = NULL;
654 double bandwidth_bound;
655 /* LARGE PLATFORMS HACK:
656 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
657 Use the cluster_id for ->id */
659 xbt_dynar_t back_route = NULL;
660 int constraints_per_variable = 0;
661 // I will need this route for some time so let's call get_route_no_cleanup
662 xbt_dynar_t route = global_routing->get_route_no_cleanup(src_name, dst_name);
665 if (sg_network_fullduplex == 1) {
666 back_route = global_routing->get_route(dst_name, src_name);
669 /* LARGE PLATFORMS HACK:
670 total_route_size = route_size + src->link_nb + dst->nb */
672 XBT_IN4("(%s,%s,%g,%g)", src_name, dst_name, size, rate);
673 /* LARGE PLATFORMS HACK:
674 assert on total_route_size */
675 xbt_assert2(xbt_dynar_length(route),
676 "You're trying to send data from %s to %s but there is no connection between these two hosts.",
679 xbt_dynar_foreach(route, i, link) {
680 if (link->lmm_resource.state_current == SURF_RESOURCE_OFF) {
686 surf_action_new(sizeof(s_surf_action_network_CM02_im_t), size,
687 surf_network_model, failed);
690 #ifdef HAVE_LATENCY_BOUND_TRACKING
691 (action->generic_action).latency_limited = 0;
694 xbt_swag_insert(action, action->generic_action.state_set);
696 action->index_heap = -1;
697 action->latency = 0.0;
698 action->weight = 0.0;
699 action->last_update = surf_get_clock();
701 bandwidth_bound = -1.0;
702 xbt_dynar_foreach(route, i, link) {
703 action->latency += link->lat_current;
706 sg_weight_S_parameter /
707 (link->lmm_resource.power.peak * link->lmm_resource.power.scale);
708 if (bandwidth_bound < 0.0)
710 (*im_bandwidth_factor_callback) (size) *
711 (link->lmm_resource.power.peak * link->lmm_resource.power.scale);
715 (*im_bandwidth_factor_callback) (size) *
716 (link->lmm_resource.power.peak *
717 link->lmm_resource.power.scale));
719 /* LARGE PLATFORMS HACK:
720 Add src->link and dst->link latencies */
721 action->lat_current = action->latency;
722 action->latency *= (*im_latency_factor_callback) (size);
724 (*im_bandwidth_constraint_callback) (action->rate, bandwidth_bound,
727 /* LARGE PLATFORMS HACK:
728 lmm_variable_new(..., total_route_size) */
729 if (back_route != NULL) {
730 constraints_per_variable =
731 xbt_dynar_length(route) + xbt_dynar_length(back_route);
733 constraints_per_variable = xbt_dynar_length(route);
736 if (action->latency > 0){
738 lmm_variable_new(network_im_maxmin_system, action, 0.0, -1.0,
739 constraints_per_variable);
740 // add to the heap the event when the latency is payed
741 DEBUG2("Added action (%p) one latency event at date %f", action, action->latency + action->last_update);
742 heap_insert(action, action->latency + action->last_update, LATENCY);
743 #ifdef HAVE_LATENCY_BOUND_TRACKING
744 (action->generic_action).latency_limited = 1;
749 lmm_variable_new(network_im_maxmin_system, action, 1.0, -1.0,
750 constraints_per_variable);
752 if (action->rate < 0) {
753 if (action->lat_current > 0)
754 lmm_update_variable_bound(network_im_maxmin_system, action->variable,
755 sg_tcp_gamma / (2.0 *
756 action->lat_current));
758 lmm_update_variable_bound(network_im_maxmin_system, action->variable,
761 if (action->lat_current > 0)
762 lmm_update_variable_bound(network_im_maxmin_system, action->variable,
764 sg_tcp_gamma / (2.0 *
765 action->lat_current)));
767 lmm_update_variable_bound(network_im_maxmin_system, action->variable,
771 xbt_dynar_foreach(route, i, link) {
772 lmm_expand(network_im_maxmin_system, link->lmm_resource.constraint,
773 action->variable, 1.0);
776 if (sg_network_fullduplex == 1) {
777 DEBUG1("Fullduplex active adding backward flow using 5%c", '%');
778 xbt_dynar_foreach(back_route, i, link) {
779 lmm_expand(network_im_maxmin_system, link->lmm_resource.constraint,
780 action->variable, .05);
784 /* LARGE PLATFORMS HACK:
785 expand also with src->link and dst->link */
787 action->src_name = xbt_new(char, strlen(src_name) + 1);
788 strncpy(action->src_name, src_name, strlen(src_name) + 1);
790 action->dst_name = xbt_new(char, strlen(dst_name) + 1);
791 strncpy(action->dst_name, dst_name, strlen(dst_name) + 1);
794 xbt_dynar_free(&route);
797 return (surf_action_t) action;
800 static xbt_dynar_t im_net_get_route(const char *src, const char *dst)
802 return global_routing->get_route(src, dst);
805 static double im_net_get_link_bandwidth(const void *link)
807 surf_resource_lmm_t lmm = (surf_resource_lmm_t) link;
808 return lmm->power.peak * lmm->power.scale;
811 static double im_net_get_link_latency(const void *link)
813 return ((link_CM02_im_t) link)->lat_current;
816 static int im_net_link_shared(const void *link)
819 lmm_constraint_is_shared(((surf_resource_lmm_t) link)->constraint);
822 static void im_net_action_suspend(surf_action_t action)
824 ((surf_action_network_CM02_im_t) action)->suspended = 1;
825 lmm_update_variable_weight(network_im_maxmin_system,
826 ((surf_action_network_CM02_im_t)
827 action)->variable, 0.0);
829 // remove action from the heap
830 heap_remove((surf_action_network_CM02_im_t) action);
833 static void im_net_action_resume(surf_action_t action)
835 if (((surf_action_network_CM02_im_t) action)->suspended) {
836 lmm_update_variable_weight(network_im_maxmin_system,
837 ((surf_action_network_CM02_im_t)
839 ((surf_action_network_CM02_im_t)
841 ((surf_action_network_CM02_im_t) action)->suspended = 0;
842 // remove action from the heap
843 heap_remove((surf_action_network_CM02_im_t) action);
847 static int im_net_action_is_suspended(surf_action_t action)
849 return ((surf_action_network_CM02_im_t) action)->suspended;
852 void im_net_action_set_max_duration(surf_action_t action, double duration)
854 action->max_duration = duration;
855 // remove action from the heap
856 heap_remove((surf_action_network_CM02_im_t) action);
860 static void im_net_finalize(void)
862 surf_model_exit(surf_network_model);
863 surf_network_model = NULL;
865 global_routing->finalize();
867 lmm_system_free(network_im_maxmin_system);
868 network_im_maxmin_system = NULL;
870 xbt_heap_free(im_net_action_heap);
871 xbt_swag_free(im_net_modified_set);
875 static void im_surf_network_model_init_internal(void)
877 s_surf_action_network_CM02_im_t comm;
878 INFO0("You are using the UNSAFE lazy management optimization, I hope you know what you are doing.");
879 INFO0("====> For now this optimization is only available for LV08_im network model.");
881 surf_network_model = surf_model_init();
883 surf_network_model->name = "network";
884 surf_network_model->action_unref = im_net_action_unref;
885 surf_network_model->action_cancel = im_net_action_cancel;
886 surf_network_model->action_recycle = im_net_action_recycle;
887 surf_network_model->get_remains = im_net_action_get_remains;
888 #ifdef HAVE_LATENCY_BOUND_TRACKING
889 surf_network_model->get_latency_limited = im_net_get_link_latency_limited;
892 surf_network_model->model_private->resource_used = im_net_resource_used;
893 surf_network_model->model_private->share_resources = im_net_share_resources;
894 surf_network_model->model_private->update_actions_state =
895 im_net_update_actions_state;
896 surf_network_model->model_private->update_resource_state =
897 im_net_update_resource_state;
898 surf_network_model->model_private->finalize = im_net_finalize;
900 surf_network_model->suspend = im_net_action_suspend;
901 surf_network_model->resume = im_net_action_resume;
902 surf_network_model->is_suspended = im_net_action_is_suspended;
903 surf_cpu_model->set_max_duration = im_net_action_set_max_duration;
905 surf_network_model->extension.network.communicate = im_net_communicate;
906 surf_network_model->extension.network.get_route = im_net_get_route;
907 surf_network_model->extension.network.get_link_bandwidth =
908 im_net_get_link_bandwidth;
909 surf_network_model->extension.network.get_link_latency =
910 im_net_get_link_latency;
911 surf_network_model->extension.network.link_shared = im_net_link_shared;
912 surf_network_model->extension.network.add_traces = im_net_add_traces;
913 surf_network_model->extension.network.create_resource =
914 im_net_create_resource;
917 if (!network_im_maxmin_system){
918 sg_maxmin_selective_update = 1;
919 network_im_maxmin_system = lmm_system_new();
921 im_net_action_heap = xbt_heap_new(8,NULL);
923 xbt_heap_set_update_callback(im_net_action_heap, im_net_action_update_index_heap);
925 routing_model_create(sizeof(link_CM02_im_t), im_net_link_new(xbt_strdup("__loopback__"),
926 498000000, NULL, 0.000015, NULL,
927 SURF_RESOURCE_ON, NULL,
928 SURF_LINK_FATPIPE, NULL),
929 im_net_get_link_latency);
930 im_net_modified_set =
931 xbt_swag_new(xbt_swag_offset(comm, action_list_hookup));
932 keep_track = im_net_modified_set;
937 /************************************************************************/
938 /* New model based on optimizations discussed during this thesis */
939 /************************************************************************/
940 void im_surf_network_model_init_LegrandVelho(const char *filename)
943 if (surf_network_model)
945 im_surf_network_model_init_internal();
946 im_net_define_callbacks(filename);
947 xbt_dynar_push(model_list, &surf_network_model);
948 network_im_solve = lmm_solve;
950 xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor", 10.4);
951 xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
953 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 8775);
955 update_model_description(surf_network_model_description,
956 "LV08_im", surf_network_model);