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 XBT_DEBUG("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);
353 surf_action_free(&action);
361 static void im_net_action_cancel(surf_action_t action)
363 surf_network_model->action_state_set(action, SURF_ACTION_FAILED);
365 xbt_swag_remove(action, im_net_modified_set);
366 // remove action from the heap
367 heap_remove((surf_action_network_CM02_im_t) action);
370 void im_net_action_recycle(surf_action_t action)
375 #ifdef HAVE_LATENCY_BOUND_TRACKING
376 int im_net_get_link_latency_limited(surf_action_t action)
378 return action->latency_limited;
382 double im_net_action_get_remains(surf_action_t action)
384 /* update remains before return it */
385 update_action_remaining(surf_get_clock());
386 return action->remains;
389 static void update_action_remaining(double now){
390 surf_action_network_CM02_im_t action = NULL;
393 xbt_swag_foreach(action, im_net_modified_set) {
395 if(action->suspended != 0){
399 delta = now - action->last_update;
401 double_update(&(action->generic_action.remains),
402 lmm_variable_getvalue(action->variable) * delta);
404 if (action->generic_action.max_duration != NO_MAX_DURATION)
405 double_update(&(action->generic_action.max_duration), delta);
407 if ((action->generic_action.remains <= 0) &&
408 (lmm_get_variable_weight(action->variable) > 0)) {
409 action->generic_action.finish = surf_get_clock();
410 surf_network_model->action_state_set((surf_action_t) action,
413 } else if ((action->generic_action.max_duration != NO_MAX_DURATION)
414 && (action->generic_action.max_duration <= 0)) {
415 action->generic_action.finish = surf_get_clock();
416 surf_network_model->action_state_set((surf_action_t) action,
421 action->last_update = now;
425 static double im_net_share_resources(double now)
427 surf_action_network_CM02_im_t action = NULL;
431 XBT_DEBUG("Before share resources, the size of modified actions set is %d", xbt_swag_size(im_net_modified_set));
432 update_action_remaining(now);
434 lmm_solve(network_im_maxmin_system);
436 XBT_DEBUG("After share resources, The size of modified actions set is %d", xbt_swag_size(im_net_modified_set));
438 xbt_swag_foreach(action, im_net_modified_set) {
439 if (GENERIC_ACTION(action).state_set != surf_network_model->states.running_action_set){
443 /* bogus priority, skip it */
444 if (GENERIC_ACTION(action).priority <= 0){
449 value = lmm_variable_getvalue(action->variable);
451 if (GENERIC_ACTION(action).remains > 0) {
452 value = GENERIC_ACTION(action).remains / value;
460 if ((GENERIC_ACTION(action).max_duration != NO_MAX_DURATION)
462 || GENERIC_ACTION(action).start +
463 GENERIC_ACTION(action).max_duration < min)){
464 min = GENERIC_ACTION(action).start +
465 GENERIC_ACTION(action).max_duration;
468 XBT_DEBUG("Action(%p) Start %lf Finish %lf Max_duration %lf", action,
469 GENERIC_ACTION(action).start, now + value,
470 GENERIC_ACTION(action).max_duration);
474 if (action->index_heap >= 0) {
475 heap_remove((surf_action_network_CM02_im_t) action);
479 heap_insert((surf_action_network_CM02_im_t) action, min, NORMAL);
480 XBT_DEBUG("Insert at heap action(%p) min %lf now %lf", action, min, now);
484 //hereafter must have already the min value for this resource model
485 if(xbt_heap_size(im_net_action_heap) > 0 ){
486 min = xbt_heap_maxkey(im_net_action_heap) - now ;
491 XBT_DEBUG("The minimum with the HEAP %lf", min);
497 static void im_net_update_actions_state(double now, double delta)
499 surf_action_network_CM02_im_t action = NULL;
501 while ((xbt_heap_size(im_net_action_heap) > 0)
502 && (double_equals(xbt_heap_maxkey(im_net_action_heap), now))) {
503 action = xbt_heap_pop(im_net_action_heap);
504 XBT_DEBUG("Action %p: finish", action);
505 GENERIC_ACTION(action).finish = surf_get_clock();
507 // if I am wearing a latency heat
508 if( action->hat == LATENCY){
509 lmm_update_variable_weight(network_im_maxmin_system, action->variable,
512 action->last_update = surf_get_clock();
514 XBT_DEBUG("Action (%p) is not limited by latency anymore", action);
515 #ifdef HAVE_LATENCY_BOUND_TRACKING
516 GENERIC_ACTION(action).latency_limited = 0;
519 // if I am wearing a max_duration or normal hat
520 }else if( action->hat == MAX_DURATION || action->hat == NORMAL ){
521 // no need to communicate anymore
522 // assume that flows that reached max_duration have remaining of 0
523 GENERIC_ACTION(action).remains = 0;
524 action->generic_action.finish = surf_get_clock();
525 surf_network_model->action_state_set((surf_action_t) action,
533 static void im_net_update_resource_state(void *id,
534 tmgr_trace_event_t event_type,
535 double value, double date)
537 link_CM02_im_t nw_link = id;
538 /* printf("[" "%lg" "] Asking to update network card \"%s\" with value " */
539 /* "%lg" " for event %p\n", surf_get_clock(), nw_link->name, */
540 /* value, event_type); */
542 if (event_type == nw_link->lmm_resource.power.event) {
544 sg_weight_S_parameter / value - sg_weight_S_parameter /
545 (nw_link->lmm_resource.power.peak *
546 nw_link->lmm_resource.power.scale);
547 lmm_variable_t var = NULL;
548 lmm_element_t elem = NULL;
549 surf_action_network_CM02_im_t action = NULL;
551 nw_link->lmm_resource.power.peak = value;
552 lmm_update_constraint_bound(network_im_maxmin_system,
553 nw_link->lmm_resource.constraint,
554 sg_bandwidth_factor *
555 (nw_link->lmm_resource.power.peak *
556 nw_link->lmm_resource.power.scale));
558 TRACE_surf_link_set_bandwidth(date, (char *)(((nw_link->lmm_resource).generic_resource).name),
559 sg_bandwidth_factor *
560 (nw_link->lmm_resource.power.peak *
561 nw_link->lmm_resource.power.scale));
563 if (sg_weight_S_parameter > 0) {
564 while ((var = lmm_get_var_from_cnst
565 (network_im_maxmin_system, nw_link->lmm_resource.constraint,
567 action = lmm_variable_id(var);
568 action->weight += delta;
569 if (!(action->suspended))
570 lmm_update_variable_weight(network_im_maxmin_system,
571 action->variable, action->weight);
574 if (tmgr_trace_event_free(event_type))
575 nw_link->lmm_resource.power.event = NULL;
576 } else if (event_type == nw_link->lat_event) {
577 double delta = value - nw_link->lat_current;
578 lmm_variable_t var = NULL;
579 lmm_element_t elem = NULL;
580 surf_action_network_CM02_im_t action = NULL;
582 nw_link->lat_current = value;
583 while ((var = lmm_get_var_from_cnst
584 (network_im_maxmin_system, nw_link->lmm_resource.constraint,
586 action = lmm_variable_id(var);
587 action->lat_current += delta;
588 action->weight += delta;
589 if (action->rate < 0)
590 lmm_update_variable_bound(network_im_maxmin_system, action->variable,
591 sg_tcp_gamma / (2.0 *
592 action->lat_current));
594 lmm_update_variable_bound(network_im_maxmin_system, action->variable,
596 sg_tcp_gamma / (2.0 *
597 action->lat_current)));
599 if (action->rate < sg_tcp_gamma / (2.0 * action->lat_current)) {
600 XBT_INFO("Flow is limited BYBANDWIDTH");
602 XBT_INFO("Flow is limited BYLATENCY, latency of flow is %f",
603 action->lat_current);
606 if (!(action->suspended))
607 lmm_update_variable_weight(network_im_maxmin_system, action->variable,
611 if (tmgr_trace_event_free(event_type))
612 nw_link->lat_event = NULL;
613 } else if (event_type == nw_link->lmm_resource.state_event) {
615 nw_link->lmm_resource.state_current = SURF_RESOURCE_ON;
617 lmm_constraint_t cnst = nw_link->lmm_resource.constraint;
618 lmm_variable_t var = NULL;
619 lmm_element_t elem = NULL;
621 nw_link->lmm_resource.state_current = SURF_RESOURCE_OFF;
622 while ((var = lmm_get_var_from_cnst
623 (network_im_maxmin_system, cnst, &elem))) {
624 surf_action_t action = lmm_variable_id(var);
626 if (surf_action_state_get(action) == SURF_ACTION_RUNNING ||
627 surf_action_state_get(action) == SURF_ACTION_READY) {
628 action->finish = date;
629 surf_network_model->action_state_set(action, SURF_ACTION_FAILED);
633 if (tmgr_trace_event_free(event_type))
634 nw_link->lmm_resource.state_event = NULL;
636 XBT_CRITICAL("Unknown event ! \n");
640 XBT_DEBUG("There were a resource state event, need to update actions related to the constraint (%p)", nw_link->lmm_resource.constraint);
645 static surf_action_t im_net_communicate(const char *src_name,
646 const char *dst_name, double size,
652 surf_action_network_CM02_im_t action = NULL;
653 double bandwidth_bound;
654 /* LARGE PLATFORMS HACK:
655 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
656 Use the cluster_id for ->id */
658 xbt_dynar_t back_route = NULL;
659 int constraints_per_variable = 0;
660 // I will need this route for some time so let's call get_route_no_cleanup
661 xbt_dynar_t route = global_routing->get_route_no_cleanup(src_name, dst_name);
664 if (sg_network_fullduplex == 1) {
665 back_route = global_routing->get_route(dst_name, src_name);
668 /* LARGE PLATFORMS HACK:
669 total_route_size = route_size + src->link_nb + dst->nb */
671 XBT_IN("(%s,%s,%g,%g)", src_name, dst_name, size, rate);
672 /* LARGE PLATFORMS HACK:
673 assert on total_route_size */
674 xbt_assert2(xbt_dynar_length(route),
675 "You're trying to send data from %s to %s but there is no connection between these two hosts.",
678 xbt_dynar_foreach(route, i, link) {
679 if (link->lmm_resource.state_current == SURF_RESOURCE_OFF) {
685 surf_action_new(sizeof(s_surf_action_network_CM02_im_t), size,
686 surf_network_model, failed);
689 #ifdef HAVE_LATENCY_BOUND_TRACKING
690 (action->generic_action).latency_limited = 0;
693 xbt_swag_insert(action, action->generic_action.state_set);
695 action->index_heap = -1;
696 action->latency = 0.0;
697 action->weight = 0.0;
698 action->last_update = surf_get_clock();
700 bandwidth_bound = -1.0;
701 xbt_dynar_foreach(route, i, link) {
702 action->latency += link->lat_current;
705 sg_weight_S_parameter /
706 (link->lmm_resource.power.peak * link->lmm_resource.power.scale);
707 if (bandwidth_bound < 0.0)
709 (*im_bandwidth_factor_callback) (size) *
710 (link->lmm_resource.power.peak * link->lmm_resource.power.scale);
714 (*im_bandwidth_factor_callback) (size) *
715 (link->lmm_resource.power.peak *
716 link->lmm_resource.power.scale));
718 /* LARGE PLATFORMS HACK:
719 Add src->link and dst->link latencies */
720 action->lat_current = action->latency;
721 action->latency *= (*im_latency_factor_callback) (size);
723 (*im_bandwidth_constraint_callback) (action->rate, bandwidth_bound,
726 /* LARGE PLATFORMS HACK:
727 lmm_variable_new(..., total_route_size) */
728 if (back_route != NULL) {
729 constraints_per_variable =
730 xbt_dynar_length(route) + xbt_dynar_length(back_route);
732 constraints_per_variable = xbt_dynar_length(route);
735 if (action->latency > 0){
737 lmm_variable_new(network_im_maxmin_system, action, 0.0, -1.0,
738 constraints_per_variable);
739 // add to the heap the event when the latency is payed
740 XBT_DEBUG("Added action (%p) one latency event at date %f", action, action->latency + action->last_update);
741 heap_insert(action, action->latency + action->last_update, LATENCY);
742 #ifdef HAVE_LATENCY_BOUND_TRACKING
743 (action->generic_action).latency_limited = 1;
748 lmm_variable_new(network_im_maxmin_system, action, 1.0, -1.0,
749 constraints_per_variable);
751 if (action->rate < 0) {
752 if (action->lat_current > 0)
753 lmm_update_variable_bound(network_im_maxmin_system, action->variable,
754 sg_tcp_gamma / (2.0 *
755 action->lat_current));
757 lmm_update_variable_bound(network_im_maxmin_system, action->variable,
760 if (action->lat_current > 0)
761 lmm_update_variable_bound(network_im_maxmin_system, action->variable,
763 sg_tcp_gamma / (2.0 *
764 action->lat_current)));
766 lmm_update_variable_bound(network_im_maxmin_system, action->variable,
770 xbt_dynar_foreach(route, i, link) {
771 lmm_expand(network_im_maxmin_system, link->lmm_resource.constraint,
772 action->variable, 1.0);
775 if (sg_network_fullduplex == 1) {
776 XBT_DEBUG("Fullduplex active adding backward flow using 5%c", '%');
777 xbt_dynar_foreach(back_route, i, link) {
778 lmm_expand(network_im_maxmin_system, link->lmm_resource.constraint,
779 action->variable, .05);
783 /* LARGE PLATFORMS HACK:
784 expand also with src->link and dst->link */
786 action->src_name = xbt_strdup(src_name);
788 action->dst_name = xbt_strdup(dst_name);
791 xbt_dynar_free(&route);
794 return (surf_action_t) action;
797 static xbt_dynar_t im_net_get_route(const char *src, const char *dst)
799 return global_routing->get_route(src, dst);
802 static double im_net_get_link_bandwidth(const void *link)
804 surf_resource_lmm_t lmm = (surf_resource_lmm_t) link;
805 return lmm->power.peak * lmm->power.scale;
808 static double im_net_get_link_latency(const void *link)
810 return ((link_CM02_im_t) link)->lat_current;
813 static int im_net_link_shared(const void *link)
816 lmm_constraint_is_shared(((surf_resource_lmm_t) link)->constraint);
819 static void im_net_action_suspend(surf_action_t action)
821 ((surf_action_network_CM02_im_t) action)->suspended = 1;
822 lmm_update_variable_weight(network_im_maxmin_system,
823 ((surf_action_network_CM02_im_t)
824 action)->variable, 0.0);
826 // remove action from the heap
827 heap_remove((surf_action_network_CM02_im_t) action);
830 static void im_net_action_resume(surf_action_t action)
832 if (((surf_action_network_CM02_im_t) action)->suspended) {
833 lmm_update_variable_weight(network_im_maxmin_system,
834 ((surf_action_network_CM02_im_t)
836 ((surf_action_network_CM02_im_t)
838 ((surf_action_network_CM02_im_t) action)->suspended = 0;
839 // remove action from the heap
840 heap_remove((surf_action_network_CM02_im_t) action);
844 static int im_net_action_is_suspended(surf_action_t action)
846 return ((surf_action_network_CM02_im_t) action)->suspended;
849 void im_net_action_set_max_duration(surf_action_t action, double duration)
851 action->max_duration = duration;
852 // remove action from the heap
853 heap_remove((surf_action_network_CM02_im_t) action);
857 static void im_net_finalize(void)
859 surf_model_exit(surf_network_model);
860 surf_network_model = NULL;
862 global_routing->finalize();
864 lmm_system_free(network_im_maxmin_system);
865 network_im_maxmin_system = NULL;
867 xbt_heap_free(im_net_action_heap);
868 xbt_swag_free(im_net_modified_set);
872 static void im_surf_network_model_init_internal(void)
874 s_surf_action_network_CM02_im_t comm;
875 XBT_INFO("You are using the UNSAFE lazy management optimization, I hope you know what you are doing.");
876 XBT_INFO("====> For now this optimization is only available for LV08_im network model.");
878 surf_network_model = surf_model_init();
880 surf_network_model->name = "network";
881 surf_network_model->action_unref = im_net_action_unref;
882 surf_network_model->action_cancel = im_net_action_cancel;
883 surf_network_model->action_recycle = im_net_action_recycle;
884 surf_network_model->get_remains = im_net_action_get_remains;
885 #ifdef HAVE_LATENCY_BOUND_TRACKING
886 surf_network_model->get_latency_limited = im_net_get_link_latency_limited;
889 surf_network_model->model_private->resource_used = im_net_resource_used;
890 surf_network_model->model_private->share_resources = im_net_share_resources;
891 surf_network_model->model_private->update_actions_state =
892 im_net_update_actions_state;
893 surf_network_model->model_private->update_resource_state =
894 im_net_update_resource_state;
895 surf_network_model->model_private->finalize = im_net_finalize;
897 surf_network_model->suspend = im_net_action_suspend;
898 surf_network_model->resume = im_net_action_resume;
899 surf_network_model->is_suspended = im_net_action_is_suspended;
900 surf_cpu_model->set_max_duration = im_net_action_set_max_duration;
902 surf_network_model->extension.network.communicate = im_net_communicate;
903 surf_network_model->extension.network.get_route = im_net_get_route;
904 surf_network_model->extension.network.get_link_bandwidth =
905 im_net_get_link_bandwidth;
906 surf_network_model->extension.network.get_link_latency =
907 im_net_get_link_latency;
908 surf_network_model->extension.network.link_shared = im_net_link_shared;
909 surf_network_model->extension.network.add_traces = im_net_add_traces;
910 surf_network_model->extension.network.create_resource =
911 im_net_create_resource;
914 if (!network_im_maxmin_system){
915 sg_maxmin_selective_update = 1;
916 network_im_maxmin_system = lmm_system_new();
918 im_net_action_heap = xbt_heap_new(8,NULL);
920 xbt_heap_set_update_callback(im_net_action_heap, im_net_action_update_index_heap);
922 routing_model_create(sizeof(link_CM02_im_t), im_net_link_new(xbt_strdup("__loopback__"),
923 498000000, NULL, 0.000015, NULL,
924 SURF_RESOURCE_ON, NULL,
925 SURF_LINK_FATPIPE, NULL),
926 im_net_get_link_latency);
927 im_net_modified_set =
928 xbt_swag_new(xbt_swag_offset(comm, action_list_hookup));
929 keep_track = im_net_modified_set;
934 /************************************************************************/
935 /* New model based on optimizations discussed during this thesis */
936 /************************************************************************/
937 void im_surf_network_model_init_LegrandVelho(const char *filename)
940 if (surf_network_model)
942 im_surf_network_model_init_internal();
943 im_net_define_callbacks(filename);
944 xbt_dynar_push(model_list, &surf_network_model);
945 network_im_solve = lmm_solve;
947 xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor", 10.4);
948 xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
950 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 8775);
952 update_model_description(surf_network_model_description,
953 "LV08_im", surf_network_model);