3 /* Copyright (c) 2004 Arnaud Legrand. All rights reserved. */
5 /* This program is free software; you can redistribute it and/or modify it
6 * under the terms of the license (GNU LGPL) which comes with this package. */
8 #include "network_private.h"
12 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_network, surf,
13 "Logging specific to the SURF network module");
15 surf_model_t surf_network_model = NULL;
16 static lmm_system_t network_maxmin_system = NULL;
17 static void (*network_solve) (lmm_system_t) = NULL;
18 xbt_dict_t link_set = NULL;
20 double latency_factor = 1.0; /* default value */
21 double bandwidth_factor = 1.0; /* default value */
22 double weight_S_parameter = 0.0; /* default value */
26 link_CM02_t **routing_table = NULL;
27 int *routing_table_size = NULL;
28 static link_CM02_t loopback = NULL;
29 double sg_tcp_gamma = 0.0;
32 static void create_routing_table(void)
34 routing_table = xbt_new0(link_CM02_t *, /*card_number * card_number */
35 host_number * host_number);
37 xbt_new0(int, /*card_number * card_number */ host_number * host_number);
40 static void link_free(void *nw_link)
42 xbt_dict_free(&(((link_CM02_t) nw_link)->properties));
43 surf_resource_free(nw_link);
46 static link_CM02_t link_new(char *name,
48 tmgr_trace_t bw_trace,
50 tmgr_trace_t lat_trace,
53 tmgr_trace_t state_trace,
54 e_surf_link_sharing_policy_t
55 policy, xbt_dict_t properties)
57 link_CM02_t nw_link = xbt_new0(s_link_CM02_t, 1);
58 xbt_assert1(!xbt_dict_get_or_null(link_set, name),
59 "Link '%s' declared several times in the platform file.", name);
61 nw_link->generic_resource.model = surf_network_model;
62 nw_link->generic_resource.name = name;
63 nw_link->bw_current = bw_initial;
66 tmgr_history_add_trace(history, bw_trace, 0.0, 0, nw_link);
67 nw_link->lat_current = lat_initial;
70 tmgr_history_add_trace(history, lat_trace, 0.0, 0, nw_link);
71 nw_link->state_current = state_initial;
73 nw_link->state_event =
74 tmgr_history_add_trace(history, state_trace, 0.0, 0, nw_link);
77 lmm_constraint_new(network_maxmin_system, nw_link,
78 bandwidth_factor * nw_link->bw_current);
80 if (policy == SURF_LINK_FATPIPE)
81 lmm_constraint_shared(nw_link->constraint);
83 nw_link->properties = properties;
85 current_property_set = properties;
87 xbt_dict_set(link_set, name, nw_link, link_free);
92 static int network_card_new(const char *card_name)
94 network_card_CM02_t card =
95 surf_model_resource_by_name(surf_network_model, card_name);
98 card = xbt_new0(s_network_card_CM02_t, 1);
99 card->generic_resource.name = xbt_strdup(card_name);
100 card->id = host_number++;
101 xbt_dict_set(surf_model_resource_set(surf_network_model), card_name, card,
107 static void route_new(int src_id, int dst_id,
108 link_CM02_t * link_list, int nb_link)
110 ROUTE_SIZE(src_id, dst_id) = nb_link;
111 ROUTE(src_id, dst_id) = link_list =
112 xbt_realloc(link_list, sizeof(link_CM02_t) * nb_link);
115 static void parse_link_init(void)
119 tmgr_trace_t bw_trace;
121 tmgr_trace_t lat_trace;
122 e_surf_link_state_t state_initial_link = SURF_LINK_ON;
123 e_surf_link_sharing_policy_t policy_initial_link = SURF_LINK_SHARED;
124 tmgr_trace_t state_trace;
126 name_link = xbt_strdup(A_surfxml_link_id);
127 surf_parse_get_double(&bw_initial, A_surfxml_link_bandwidth);
128 surf_parse_get_trace(&bw_trace, A_surfxml_link_bandwidth_file);
129 surf_parse_get_double(&lat_initial, A_surfxml_link_latency);
130 surf_parse_get_trace(&lat_trace, A_surfxml_link_latency_file);
132 xbt_assert0((A_surfxml_link_state == A_surfxml_link_state_ON)
133 || (A_surfxml_link_state ==
134 A_surfxml_link_state_OFF), "Invalid state");
135 if (A_surfxml_link_state == A_surfxml_link_state_ON)
136 state_initial_link = SURF_LINK_ON;
137 else if (A_surfxml_link_state == A_surfxml_link_state_OFF)
138 state_initial_link = SURF_LINK_OFF;
140 if (A_surfxml_link_sharing_policy == A_surfxml_link_sharing_policy_SHARED)
141 policy_initial_link = SURF_LINK_SHARED;
142 else if (A_surfxml_link_sharing_policy ==
143 A_surfxml_link_sharing_policy_FATPIPE)
144 policy_initial_link = SURF_LINK_FATPIPE;
146 surf_parse_get_trace(&state_trace, A_surfxml_link_state_file);
148 link_new(name_link, bw_initial, bw_trace,
149 lat_initial, lat_trace, state_initial_link, state_trace,
150 policy_initial_link, xbt_dict_new());
154 static int src_id = -1;
155 static int dst_id = -1;
157 static void parse_route_set_endpoints(void)
159 src_id = network_card_new(A_surfxml_route_src);
160 dst_id = network_card_new(A_surfxml_route_dst);
161 route_action = A_surfxml_route_action;
164 static void parse_route_set_route(void)
167 if (src_id != -1 && dst_id != -1) {
168 name = bprintf("%x#%x", src_id, dst_id);
169 manage_route(route_table, name, route_action, 0);
174 static void add_loopback(void)
177 /* Adding loopback if needed */
178 for (i = 0; i < host_number; i++)
179 if (!ROUTE_SIZE(i, i)) {
181 loopback = link_new(xbt_strdup("__MSG_loopback__"),
182 498000000, NULL, 0.000015, NULL,
183 SURF_LINK_ON, NULL, SURF_LINK_FATPIPE, NULL);
184 ROUTE_SIZE(i, i) = 1;
185 ROUTE(i, i) = xbt_new0(link_CM02_t, 1);
186 ROUTE(i, i)[0] = loopback;
190 static void add_route(void)
194 unsigned int cpt = 0;
195 int link_list_capacity = 0;
196 link_CM02_t *link_list = NULL;
197 xbt_dict_cursor_t cursor = NULL;
198 char *key, *data, *end;
199 const char *sep = "#";
200 xbt_dynar_t links, keys;
202 if (routing_table == NULL)
203 create_routing_table();
205 xbt_dict_foreach(route_table, cursor, key, data) {
208 links = (xbt_dynar_t) data;
209 keys = xbt_str_split_str(key, sep);
211 link_list_capacity = xbt_dynar_length(links);
212 link_list = xbt_new(link_CM02_t, link_list_capacity);
214 src_id = strtol(xbt_dynar_get_as(keys, 0, char *), &end, 16);
215 dst_id = strtol(xbt_dynar_get_as(keys, 1, char *), &end, 16);
216 xbt_dynar_free(&keys);
218 xbt_dynar_foreach(links, cpt, link) {
220 link_list[nb_link++] = xbt_dict_get(link_set, link);
223 RETHROW1("Link %s not found (dict raised this exception: %s)", link);
226 route_new(src_id, dst_id, link_list, nb_link);
230 static void count_hosts(void)
236 static void add_traces(void)
238 xbt_dict_cursor_t cursor = NULL;
239 char *trace_name, *elm;
241 static int called = 0;
246 /* connect all traces relative to network */
247 xbt_dict_foreach(trace_connect_list_link_avail, cursor, trace_name, elm) {
248 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
249 link_CM02_t link = xbt_dict_get_or_null(link_set, elm);
251 xbt_assert2(link, "Cannot connect trace %s to link %s: link undefined",
253 xbt_assert2(trace, "Cannot connect trace %s to link %s: trace undefined",
256 link->state_event = tmgr_history_add_trace(history, trace, 0.0, 0, link);
259 xbt_dict_foreach(trace_connect_list_bandwidth, cursor, trace_name, elm) {
260 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
261 link_CM02_t link = xbt_dict_get_or_null(link_set, elm);
263 xbt_assert2(link, "Cannot connect trace %s to link %s: link undefined",
265 xbt_assert2(trace, "Cannot connect trace %s to link %s: trace undefined",
268 link->bw_event = tmgr_history_add_trace(history, trace, 0.0, 0, link);
271 xbt_dict_foreach(trace_connect_list_latency, cursor, trace_name, elm) {
272 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
273 link_CM02_t link = xbt_dict_get_or_null(link_set, elm);
275 xbt_assert2(link, "Cannot connect trace %s to link %s: link undefined",
277 xbt_assert2(trace, "Cannot connect trace %s to link %s: trace undefined",
280 link->lat_event = tmgr_history_add_trace(history, trace, 0.0, 0, link);
284 static void define_callbacks(const char *file)
286 /* Figuring out the network links */
287 surfxml_add_callback(STag_surfxml_host_cb_list, &count_hosts);
288 surfxml_add_callback(STag_surfxml_link_cb_list, &parse_link_init);
289 surfxml_add_callback(STag_surfxml_route_cb_list,
290 &parse_route_set_endpoints);
291 surfxml_add_callback(ETag_surfxml_route_cb_list, &parse_route_set_route);
292 surfxml_add_callback(ETag_surfxml_platform_cb_list, &add_traces);
293 surfxml_add_callback(ETag_surfxml_platform_cb_list, &add_route);
294 surfxml_add_callback(ETag_surfxml_platform_cb_list, &add_loopback);
297 static int resource_used(void *resource_id)
299 return lmm_constraint_used(network_maxmin_system,
300 ((link_CM02_t) resource_id)->constraint);
303 static int action_unref(surf_action_t action)
306 if (!action->refcount) {
307 xbt_swag_remove(action, action->state_set);
308 if (((surf_action_network_CM02_t) action)->variable)
309 lmm_variable_free(network_maxmin_system,
310 ((surf_action_network_CM02_t) action)->variable);
317 static void action_cancel(surf_action_t action)
322 static void action_recycle(surf_action_t action)
327 static double share_resources(double now)
329 s_surf_action_network_CM02_t s_action;
330 surf_action_network_CM02_t action = NULL;
331 xbt_swag_t running_actions = surf_network_model->states.running_action_set;
334 min = generic_maxmin_share_resources(running_actions,
335 xbt_swag_offset(s_action,
337 network_maxmin_system, network_solve);
339 #define VARIABLE(action) (*((lmm_variable_t*)(((char *) (action)) + xbt_swag_offset(s_action, variable) )))
341 xbt_swag_foreach(action, running_actions) {
342 if (action->latency > 0) {
344 min = action->latency;
345 else if (action->latency < min)
346 min = action->latency;
353 static void update_actions_state(double now, double delta)
356 surf_action_network_CM02_t action = NULL;
357 surf_action_network_CM02_t next_action = NULL;
358 xbt_swag_t running_actions = surf_network_model->states.running_action_set;
360 xbt_swag_t failed_actions =
361 surf_network_model->states.failed_action_set;
364 xbt_swag_foreach_safe(action, next_action, running_actions) {
366 if (action->latency > 0) {
367 if (action->latency > deltap) {
368 double_update(&(action->latency), deltap);
371 double_update(&(deltap), action->latency);
372 action->latency = 0.0;
374 if ((action->latency == 0.0) && !(action->suspended))
375 lmm_update_variable_weight(network_maxmin_system, action->variable,
378 double_update(&(action->generic_action.remains),
379 lmm_variable_getvalue(action->variable) * deltap);
380 if (action->generic_action.max_duration != NO_MAX_DURATION)
381 double_update(&(action->generic_action.max_duration), delta);
383 if ((action->generic_action.remains <= 0) &&
384 (lmm_get_variable_weight(action->variable) > 0)) {
385 action->generic_action.finish = surf_get_clock();
386 surf_network_model->action_state_set((surf_action_t) action, SURF_ACTION_DONE);
387 } else if ((action->generic_action.max_duration != NO_MAX_DURATION) &&
388 (action->generic_action.max_duration <= 0)) {
389 action->generic_action.finish = surf_get_clock();
390 surf_network_model->action_state_set((surf_action_t) action, SURF_ACTION_DONE);
397 static void update_resource_state(void *id,
398 tmgr_trace_event_t event_type,
399 double value, double date)
401 link_CM02_t nw_link = id;
402 /* printf("[" "%lg" "] Asking to update network card \"%s\" with value " */
403 /* "%lg" " for event %p\n", surf_get_clock(), nw_link->name, */
404 /* value, event_type); */
406 if (event_type == nw_link->bw_event) {
408 weight_S_parameter / value - weight_S_parameter / nw_link->bw_current;
409 lmm_variable_t var = NULL;
410 lmm_element_t elem = NULL;
411 surf_action_network_CM02_t action = NULL;
413 nw_link->bw_current = value;
414 lmm_update_constraint_bound(network_maxmin_system, nw_link->constraint,
415 bandwidth_factor * nw_link->bw_current);
416 if (weight_S_parameter > 0) {
417 while ((var = lmm_get_var_from_cnst
418 (network_maxmin_system, nw_link->constraint, &elem))) {
419 action = lmm_variable_id(var);
420 action->weight += delta;
421 if (!(action->suspended))
422 lmm_update_variable_weight(network_maxmin_system, action->variable,
426 } else if (event_type == nw_link->lat_event) {
427 double delta = value - nw_link->lat_current;
428 lmm_variable_t var = NULL;
429 lmm_element_t elem = NULL;
430 surf_action_network_CM02_t action = NULL;
432 nw_link->lat_current = value;
433 while ((var = lmm_get_var_from_cnst
434 (network_maxmin_system, nw_link->constraint, &elem))) {
435 action = lmm_variable_id(var);
436 action->lat_current += delta;
437 action->weight += delta;
438 if (action->rate < 0)
439 lmm_update_variable_bound(network_maxmin_system, action->variable,
440 sg_tcp_gamma / (2.0 * action->lat_current));
442 lmm_update_variable_bound(network_maxmin_system, action->variable,
444 sg_tcp_gamma / (2.0 *
445 action->lat_current)));
446 if (!(action->suspended))
447 lmm_update_variable_weight(network_maxmin_system, action->variable,
451 } else if (event_type == nw_link->state_event) {
453 nw_link->state_current = SURF_LINK_ON;
455 lmm_constraint_t cnst = nw_link->constraint;
456 lmm_variable_t var = NULL;
457 lmm_element_t elem = NULL;
459 nw_link->state_current = SURF_LINK_OFF;
460 while ((var = lmm_get_var_from_cnst
461 (network_maxmin_system, cnst, &elem))) {
462 surf_action_t action = lmm_variable_id(var);
464 if (surf_action_state_get(action) == SURF_ACTION_RUNNING ||
465 surf_action_state_get(action) == SURF_ACTION_READY) {
466 action->finish = date;
467 surf_network_model->action_state_set(action, SURF_ACTION_FAILED);
472 CRITICAL0("Unknown event ! \n");
479 static surf_action_t communicate(void *src, void *dst, double size,
482 surf_action_network_CM02_t action = NULL;
483 /* LARGE PLATFORMS HACK:
484 Add a link_CM02_t *link and a int link_nb to network_card_CM02_t. It will represent local links for this node
485 Use the cluster_id for ->id */
486 network_card_CM02_t card_src = src;
487 network_card_CM02_t card_dst = dst;
488 int route_size = ROUTE_SIZE(card_src->id, card_dst->id);
489 link_CM02_t *route = ROUTE(card_src->id, card_dst->id);
490 /* LARGE PLATFORMS HACK:
491 total_route_size = route_size + src->link_nb + dst->nb */
494 XBT_IN4("(%s,%s,%g,%g)", card_src->generic_resource.name, card_dst->generic_resource.name, size, rate);
495 /* LARGE PLATFORMS HACK:
496 assert on total_route_size */
497 xbt_assert2(route_size,
498 "You're trying to send data from %s to %s but there is no connexion between these two cards.",
499 card_src->generic_resource.name, card_dst->generic_resource.name);
501 action = xbt_new0(s_surf_action_network_CM02_t, 1);
503 action->generic_action.refcount = 1;
504 action->generic_action.cost = size;
505 action->generic_action.remains = size;
506 action->generic_action.max_duration = NO_MAX_DURATION;
507 action->generic_action.start = surf_get_clock();
508 action->generic_action.finish = -1.0;
509 action->generic_action.model_type = surf_network_model;
510 action->suspended = 0; /* Should be useless because of the
511 calloc but it seems to help valgrind... */
512 action->generic_action.state_set =
513 surf_network_model->states.running_action_set;
514 for (i = 0; i < route_size; i++)
515 if (route[i]->state_current == SURF_LINK_OFF) {
516 action->generic_action.state_set =
517 surf_network_model->states.failed_action_set;
521 xbt_swag_insert(action, action->generic_action.state_set);
524 action->latency = 0.0;
525 action->weight = 0.0;
526 for (i = 0; i < route_size; i++) {
527 action->latency += route[i]->lat_current;
529 route[i]->lat_current + weight_S_parameter / route[i]->bw_current;
531 /* LARGE PLATFORMS HACK:
532 Add src->link and dst->link latencies */
533 action->lat_current = action->latency;
534 action->latency *= latency_factor;
536 /* LARGE PLATFORMS HACK:
537 lmm_variable_new(..., total_route_size) */
538 if (action->latency > 0)
540 lmm_variable_new(network_maxmin_system, action, 0.0, -1.0, route_size);
543 lmm_variable_new(network_maxmin_system, action, 1.0, -1.0, route_size);
545 if (action->rate < 0) {
546 if (action->lat_current > 0)
547 lmm_update_variable_bound(network_maxmin_system, action->variable,
548 sg_tcp_gamma / (2.0 * action->lat_current));
550 lmm_update_variable_bound(network_maxmin_system, action->variable,
553 if (action->lat_current > 0)
554 lmm_update_variable_bound(network_maxmin_system, action->variable,
556 sg_tcp_gamma / (2.0 *
557 action->lat_current)));
559 lmm_update_variable_bound(network_maxmin_system, action->variable,
563 for (i = 0; i < route_size; i++)
564 lmm_expand(network_maxmin_system, route[i]->constraint,
565 action->variable, 1.0);
566 /* LARGE PLATFORMS HACK:
567 expand also with src->link and dst->link */
571 return (surf_action_t) action;
574 /* returns an array of link_CM02_t */
575 static const void **get_route(void *src, void *dst)
577 network_card_CM02_t card_src = src;
578 network_card_CM02_t card_dst = dst;
579 return (const void **) ROUTE(card_src->id, card_dst->id);
582 static int get_route_size(void *src, void *dst)
584 network_card_CM02_t card_src = src;
585 network_card_CM02_t card_dst = dst;
586 return ROUTE_SIZE(card_src->id, card_dst->id);
589 static double get_link_bandwidth(const void *link)
591 return ((link_CM02_t) link)->bw_current;
594 static double get_link_latency(const void *link)
596 return ((link_CM02_t) link)->lat_current;
599 static int link_shared(const void *link)
601 return lmm_constraint_is_shared(((link_CM02_t) link)->constraint);
604 static xbt_dict_t get_properties(void *link)
606 return ((link_CM02_t) link)->properties;
609 static void action_suspend(surf_action_t action)
611 ((surf_action_network_CM02_t) action)->suspended = 1;
612 lmm_update_variable_weight(network_maxmin_system,
613 ((surf_action_network_CM02_t) action)->variable,
617 static void action_resume(surf_action_t action)
619 if (((surf_action_network_CM02_t) action)->suspended) {
620 lmm_update_variable_weight(network_maxmin_system,
621 ((surf_action_network_CM02_t)
623 ((surf_action_network_CM02_t) action)->weight);
624 ((surf_action_network_CM02_t) action)->suspended = 0;
628 static int action_is_suspended(surf_action_t action)
630 return ((surf_action_network_CM02_t) action)->suspended;
633 static void action_set_max_duration(surf_action_t action, double duration)
635 action->max_duration = duration;
638 static void finalize(void)
642 xbt_dict_free(&link_set);
644 surf_model_exit(surf_network_model);
645 surf_network_model = NULL;
648 for (i = 0; i < host_number; i++)
649 for (j = 0; j < host_number; j++)
652 routing_table = NULL;
653 free(routing_table_size);
654 routing_table_size = NULL;
656 lmm_system_free(network_maxmin_system);
657 network_maxmin_system = NULL;
660 static void surf_network_model_init_internal(void)
662 surf_network_model = surf_model_init();
664 surf_network_model->name = "network";
665 surf_network_model->action_unref = action_unref;
666 surf_network_model->action_cancel = action_cancel;
667 surf_network_model->action_recycle = action_recycle;
669 surf_network_model->model_private->resource_used = resource_used;
670 surf_network_model->model_private->share_resources = share_resources;
671 surf_network_model->model_private->update_actions_state =
672 update_actions_state;
673 surf_network_model->model_private->update_resource_state =
674 update_resource_state;
675 surf_network_model->model_private->finalize = finalize;
677 surf_network_model->suspend = action_suspend;
678 surf_network_model->resume = action_resume;
679 surf_network_model->is_suspended = action_is_suspended;
680 surf_cpu_model->set_max_duration = action_set_max_duration;
682 surf_network_model->extension.network.communicate = communicate;
683 surf_network_model->extension.network.get_route = get_route;
684 surf_network_model->extension.network.get_route_size = get_route_size;
685 surf_network_model->extension.network.get_link_bandwidth =
687 surf_network_model->extension.network.get_link_latency = get_link_latency;
688 surf_network_model->extension.network.link_shared = link_shared;
690 surf_network_model->get_properties = get_properties;
692 link_set = xbt_dict_new();
694 if (!network_maxmin_system)
695 network_maxmin_system = lmm_system_new();
698 /************************************************************************/
699 /* New model based on optimizations discussed during this thesis */
700 /************************************************************************/
701 void surf_network_model_init_LegrandVelho(const char *filename)
704 if (surf_network_model)
706 surf_network_model_init_internal();
707 define_callbacks(filename);
708 xbt_dynar_push(model_list, &surf_network_model);
709 network_solve = lmm_solve;
711 latency_factor = 10.4;
712 bandwidth_factor = 0.92;
713 weight_S_parameter = 8775;
715 update_model_description(surf_network_model_description,
716 "LegrandVelho", surf_network_model);
719 /***************************************************************************/
720 /* The nice TCP sharing model designed by Loris Marchal and Henri Casanova */
721 /***************************************************************************/
722 /* @TechReport{ rr-lip2002-40, */
723 /* author = {Henri Casanova and Loris Marchal}, */
724 /* institution = {LIP}, */
725 /* title = {A Network Model for Simulation of Grid Application}, */
726 /* number = {2002-40}, */
730 void surf_network_model_init_CM02(const char *filename)
733 if (surf_network_model)
735 surf_network_model_init_internal();
736 define_callbacks(filename);
737 xbt_dynar_push(model_list, &surf_network_model);
738 network_solve = lmm_solve;
740 update_model_description(surf_network_model_description,
741 "CM02", surf_network_model);
744 void surf_network_model_init_Reno(const char *filename)
746 if (surf_network_model)
748 surf_network_model_init_internal();
749 define_callbacks(filename);
751 xbt_dynar_push(model_list, &surf_network_model);
752 lmm_set_default_protocol_function(func_reno_f, func_reno_fp, func_reno_fpi);
753 network_solve = lagrange_solve;
755 latency_factor = 10.4;
756 bandwidth_factor = 0.92;
757 weight_S_parameter = 8775;
759 update_model_description(surf_network_model_description,
760 "Reno", surf_network_model);
764 void surf_network_model_init_Reno2(const char *filename)
766 if (surf_network_model)
768 surf_network_model_init_internal();
769 define_callbacks(filename);
771 xbt_dynar_push(model_list, &surf_network_model);
772 lmm_set_default_protocol_function(func_reno2_f, func_reno2_fp,
774 network_solve = lagrange_solve;
776 latency_factor = 10.4;
777 bandwidth_factor = 0.92;
778 weight_S_parameter = 8775;
780 update_model_description(surf_network_model_description,
781 "Reno2", surf_network_model);
784 void surf_network_model_init_Vegas(const char *filename)
786 if (surf_network_model)
788 surf_network_model_init_internal();
789 define_callbacks(filename);
791 xbt_dynar_push(model_list, &surf_network_model);
792 lmm_set_default_protocol_function(func_vegas_f, func_vegas_fp,
794 network_solve = lagrange_solve;
796 latency_factor = 10.4;
797 bandwidth_factor = 0.92;
798 weight_S_parameter = 8775;
800 update_model_description(surf_network_model_description,
801 "Vegas", surf_network_model);
805 void surf_network_model_init_SDP(const char *filename)
807 if (surf_network_model)
809 surf_network_model_init_internal();
810 define_callbacks(filename);
812 xbt_dynar_push(model_list, &surf_network_model);
813 network_solve = sdp_solve;
815 update_model_description(surf_network_model_description,
816 "SDP", surf_network_model);