1 /* Copyright (c) 2004, 2005, 2006, 2007, 2008, 2009, 2010. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
7 #include "network_private.h"
11 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_network, surf,
12 "Logging specific to the SURF network module");
14 surf_model_t surf_network_model = NULL;
15 static lmm_system_t network_maxmin_system = NULL;
16 static void (*network_solve) (lmm_system_t) = NULL;
18 double sg_latency_factor = 1.0; /* default value; can be set by model or from command line */
19 double sg_bandwidth_factor = 1.0; /* default value; can be set by model or from command line */
20 double sg_weight_S_parameter = 0.0;/* default value; can be set by model or from command line */
22 double sg_tcp_gamma = 0.0;
25 /******************************************************************************/
26 /* Factors callbacks */
27 /******************************************************************************/
28 static double constant_latency_factor(double size)
30 return sg_latency_factor;
33 static double constant_bandwidth_factor(double size)
35 return sg_bandwidth_factor;
38 static double constant_bandwidth_constraint(double rate, double bound, double size)
43 /**********************/
45 /**********************/
46 static double smpi_latency_factor(double size)
48 /* 1 B <= size <= 1 KiB */
53 /* 2 KiB <= size <= 32 KiB */
54 if (size <= 32768.0) {
58 /* 64 KiB <= size <= 4 MiB */
62 static double smpi_bandwidth_factor(double size)
64 /* 1 B <= size <= 1 KiB */
69 /* 2 KiB <= size <= 32 KiB */
70 if (size <= 32768.0) {
74 /* 64 KiB <= size <= 4 MiB */
78 static double smpi_bandwidth_constraint(double rate, double bound, double size)
80 return rate < 0 ? bound : min(bound, rate * smpi_bandwidth_factor(size));
84 static double (*latency_factor_callback)(double) = &constant_latency_factor;
85 static double (*bandwidth_factor_callback)(double) = &constant_bandwidth_factor;
86 static double (*bandwidth_constraint_callback)(double, double, double) = &constant_bandwidth_constraint;
89 static link_CM02_t net_link_new(char *name,
91 tmgr_trace_t bw_trace,
93 tmgr_trace_t lat_trace,
94 e_surf_resource_state_t
96 tmgr_trace_t state_trace,
97 e_surf_link_sharing_policy_t
98 policy, xbt_dict_t properties)
100 link_CM02_t nw_link = (link_CM02_t)
101 surf_resource_lmm_new(sizeof(s_link_CM02_t),
102 surf_network_model, name, properties,
103 network_maxmin_system,
104 sg_bandwidth_factor * bw_initial,
106 state_initial, state_trace,
107 bw_initial, bw_trace);
109 xbt_assert1(!xbt_dict_get_or_null(surf_network_model->resource_set, name),
110 "Link '%s' declared several times in the platform file.", name);
112 nw_link->lat_current = lat_initial;
115 tmgr_history_add_trace(history, lat_trace, 0.0, 0, nw_link);
117 if (policy == SURF_LINK_FATPIPE)
118 lmm_constraint_shared(nw_link->lmm_resource.constraint);
120 xbt_dict_set(surf_network_model->resource_set, name, nw_link,
123 TRACE_surf_link_declaration (name, bw_initial, lat_initial);
129 static void net_parse_link_init(void)
133 tmgr_trace_t bw_trace;
135 tmgr_trace_t lat_trace;
136 e_surf_resource_state_t state_initial_link = SURF_RESOURCE_ON;
137 e_surf_link_sharing_policy_t policy_initial_link = SURF_LINK_SHARED;
138 tmgr_trace_t state_trace;
140 name_link = xbt_strdup(A_surfxml_link_id);
141 surf_parse_get_double(&bw_initial, A_surfxml_link_bandwidth);
142 bw_trace = tmgr_trace_new(A_surfxml_link_bandwidth_file);
143 surf_parse_get_double(&lat_initial, A_surfxml_link_latency);
144 lat_trace = tmgr_trace_new(A_surfxml_link_latency_file);
146 xbt_assert0((A_surfxml_link_state == A_surfxml_link_state_ON)
147 || (A_surfxml_link_state ==
148 A_surfxml_link_state_OFF), "Invalid state");
149 if (A_surfxml_link_state == A_surfxml_link_state_ON)
150 state_initial_link = SURF_RESOURCE_ON;
151 else if (A_surfxml_link_state == A_surfxml_link_state_OFF)
152 state_initial_link = SURF_RESOURCE_OFF;
154 if (A_surfxml_link_sharing_policy == A_surfxml_link_sharing_policy_SHARED)
155 policy_initial_link = SURF_LINK_SHARED;
156 else if (A_surfxml_link_sharing_policy ==
157 A_surfxml_link_sharing_policy_FATPIPE)
158 policy_initial_link = SURF_LINK_FATPIPE;
160 state_trace = tmgr_trace_new(A_surfxml_link_state_file);
162 net_link_new(name_link, bw_initial, bw_trace,
163 lat_initial, lat_trace, state_initial_link, state_trace,
164 policy_initial_link, xbt_dict_new());
168 static void net_add_traces(void)
170 xbt_dict_cursor_t cursor = NULL;
171 char *trace_name, *elm;
173 static int called = 0;
178 /* connect all traces relative to network */
179 xbt_dict_foreach(trace_connect_list_link_avail, cursor, trace_name, elm) {
180 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
182 xbt_dict_get_or_null(surf_network_model->resource_set, elm);
184 xbt_assert2(link, "Cannot connect trace %s to link %s: link undefined",
186 xbt_assert2(trace, "Cannot connect trace %s to link %s: trace undefined",
189 link->lmm_resource.state_event =
190 tmgr_history_add_trace(history, trace, 0.0, 0, link);
193 xbt_dict_foreach(trace_connect_list_bandwidth, cursor, trace_name, elm) {
194 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
196 xbt_dict_get_or_null(surf_network_model->resource_set, elm);
198 xbt_assert2(link, "Cannot connect trace %s to link %s: link undefined",
200 xbt_assert2(trace, "Cannot connect trace %s to link %s: trace undefined",
203 link->lmm_resource.power.event =
204 tmgr_history_add_trace(history, trace, 0.0, 0, link);
207 xbt_dict_foreach(trace_connect_list_latency, cursor, trace_name, elm) {
208 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
210 xbt_dict_get_or_null(surf_network_model->resource_set, elm);
212 xbt_assert2(link, "Cannot connect trace %s to link %s: link undefined",
214 xbt_assert2(trace, "Cannot connect trace %s to link %s: trace undefined",
217 link->lat_event = tmgr_history_add_trace(history, trace, 0.0, 0, link);
221 static void net_define_callbacks(const char *file)
223 /* Figuring out the network links */
224 surfxml_add_callback(STag_surfxml_link_cb_list, &net_parse_link_init);
225 surfxml_add_callback(ETag_surfxml_platform_cb_list, &net_add_traces);
228 static int net_resource_used(void *resource_id)
230 return lmm_constraint_used(network_maxmin_system,
231 ((surf_resource_lmm_t) resource_id)->constraint);
234 static int net_action_unref(surf_action_t action)
237 if (!action->refcount) {
238 xbt_swag_remove(action, action->state_set);
239 if (((surf_action_network_CM02_t) action)->variable)
240 lmm_variable_free(network_maxmin_system,
241 ((surf_action_network_CM02_t) action)->variable);
248 static void net_action_cancel(surf_action_t action)
250 surf_network_model->action_state_set((surf_action_t) action,
255 static void net_action_recycle(surf_action_t action)
260 static double net_action_get_remains(surf_action_t action)
262 return action->remains;
265 static double net_share_resources(double now)
267 s_surf_action_network_CM02_t s_action;
268 surf_action_network_CM02_t action = NULL;
269 xbt_swag_t running_actions = surf_network_model->states.running_action_set;
272 min = generic_maxmin_share_resources(running_actions,
273 xbt_swag_offset(s_action,
275 network_maxmin_system, network_solve);
277 #define VARIABLE(action) (*((lmm_variable_t*)(((char *) (action)) + xbt_swag_offset(s_action, variable) )))
279 xbt_swag_foreach(action, running_actions) {
280 if (action->latency > 0) {
282 min = action->latency;
283 else if (action->latency < min)
284 min = action->latency;
291 static void net_update_actions_state(double now, double delta)
294 surf_action_network_CM02_t action = NULL;
295 surf_action_network_CM02_t next_action = NULL;
296 xbt_swag_t running_actions = surf_network_model->states.running_action_set;
298 xbt_swag_t failed_actions =
299 surf_network_model->states.failed_action_set;
302 xbt_swag_foreach_safe(action, next_action, running_actions) {
305 xbt_dynar_t route = used_routing->get_route(action->src, action->dst);
308 xbt_dynar_foreach(route, i, link) {
309 TRACE_surf_link_set_utilization (link->lmm_resource.generic_resource.name,
310 action->generic_action.data, lmm_variable_getvalue(action->variable), now-delta, delta);
315 if (action->latency > 0) {
316 if (action->latency > deltap) {
317 double_update(&(action->latency), deltap);
320 double_update(&(deltap), action->latency);
321 action->latency = 0.0;
323 if ((action->latency == 0.0) && !(action->suspended))
324 lmm_update_variable_weight(network_maxmin_system, action->variable,
327 double_update(&(action->generic_action.remains),
328 lmm_variable_getvalue(action->variable) * deltap);
329 if (action->generic_action.max_duration != NO_MAX_DURATION)
330 double_update(&(action->generic_action.max_duration), delta);
332 if ((action->generic_action.remains <= 0) &&
333 (lmm_get_variable_weight(action->variable) > 0)) {
334 action->generic_action.finish = surf_get_clock();
335 surf_network_model->action_state_set((surf_action_t) action,
337 } else if ((action->generic_action.max_duration != NO_MAX_DURATION)
338 && (action->generic_action.max_duration <= 0)) {
339 action->generic_action.finish = surf_get_clock();
340 surf_network_model->action_state_set((surf_action_t) action,
348 static void net_update_resource_state(void *id,
349 tmgr_trace_event_t event_type,
350 double value, double date)
352 link_CM02_t nw_link = id;
353 /* printf("[" "%lg" "] Asking to update network card \"%s\" with value " */
354 /* "%lg" " for event %p\n", surf_get_clock(), nw_link->name, */
355 /* value, event_type); */
357 if (event_type == nw_link->lmm_resource.power.event) {
359 sg_weight_S_parameter / value - sg_weight_S_parameter /
360 (nw_link->lmm_resource.power.peak * nw_link->lmm_resource.power.scale);
361 lmm_variable_t var = NULL;
362 lmm_element_t elem = NULL;
363 surf_action_network_CM02_t action = NULL;
365 nw_link->lmm_resource.power.peak = value;
366 lmm_update_constraint_bound(network_maxmin_system,
367 nw_link->lmm_resource.constraint,
368 sg_bandwidth_factor *
369 (nw_link->lmm_resource.power.peak *
370 nw_link->lmm_resource.power.scale));
372 TRACE_surf_link_set_bandwidth (date, nw_link->lmm_resource.generic_resource.name, sg_bandwidth_factor * (nw_link->lmm_resource.power.peak * nw_link->lmm_resource.power.scale));
374 if (sg_weight_S_parameter > 0) {
375 while ((var = lmm_get_var_from_cnst
376 (network_maxmin_system, nw_link->lmm_resource.constraint,
378 action = lmm_variable_id(var);
379 action->weight += delta;
380 if (!(action->suspended))
381 lmm_update_variable_weight(network_maxmin_system, action->variable,
385 if (tmgr_trace_event_free(event_type))
386 nw_link->lmm_resource.power.event = NULL;
387 } else if (event_type == nw_link->lat_event) {
388 double delta = value - nw_link->lat_current;
389 lmm_variable_t var = NULL;
390 lmm_element_t elem = NULL;
391 surf_action_network_CM02_t action = NULL;
393 nw_link->lat_current = value;
394 while ((var = lmm_get_var_from_cnst
395 (network_maxmin_system, nw_link->lmm_resource.constraint,
397 action = lmm_variable_id(var);
398 action->lat_current += delta;
399 action->weight += delta;
400 if (action->rate < 0)
401 lmm_update_variable_bound(network_maxmin_system, action->variable,
402 sg_tcp_gamma / (2.0 * action->lat_current));
404 lmm_update_variable_bound(network_maxmin_system, action->variable,
406 sg_tcp_gamma / (2.0 *
407 action->lat_current)));
408 if (!(action->suspended))
409 lmm_update_variable_weight(network_maxmin_system, action->variable,
413 if (tmgr_trace_event_free(event_type))
414 nw_link->lat_event = NULL;
415 } else if (event_type == nw_link->lmm_resource.state_event) {
417 nw_link->lmm_resource.state_current = SURF_RESOURCE_ON;
419 lmm_constraint_t cnst = nw_link->lmm_resource.constraint;
420 lmm_variable_t var = NULL;
421 lmm_element_t elem = NULL;
423 nw_link->lmm_resource.state_current = SURF_RESOURCE_OFF;
424 while ((var = lmm_get_var_from_cnst
425 (network_maxmin_system, cnst, &elem))) {
426 surf_action_t action = lmm_variable_id(var);
428 if (surf_action_state_get(action) == SURF_ACTION_RUNNING ||
429 surf_action_state_get(action) == SURF_ACTION_READY) {
430 action->finish = date;
431 surf_network_model->action_state_set(action, SURF_ACTION_FAILED);
435 if (tmgr_trace_event_free(event_type))
436 nw_link->lmm_resource.state_event = NULL;
438 CRITICAL0("Unknown event ! \n");
445 static surf_action_t net_communicate(const char *src_name, const char *dst_name,
446 int src, int dst, double size, double rate)
451 surf_action_network_CM02_t action = NULL;
452 double bandwidth_bound;
453 /* LARGE PLATFORMS HACK:
454 Add a link_CM02_t *link and a int link_nb to network_card_CM02_t. It will represent local links for this node
455 Use the cluster_id for ->id */
456 xbt_dynar_t route = used_routing->get_route(src, dst);
457 /* LARGE PLATFORMS HACK:
458 total_route_size = route_size + src->link_nb + dst->nb */
460 XBT_IN4("(%s,%s,%g,%g)", src_name, dst_name, size, rate);
461 /* LARGE PLATFORMS HACK:
462 assert on total_route_size */
463 xbt_assert2(xbt_dynar_length(route),
464 "You're trying to send data from %s to %s but there is no connection between these two hosts.",
467 xbt_dynar_foreach(route, i, link) {
468 if (link->lmm_resource.state_current == SURF_RESOURCE_OFF) {
474 surf_action_new(sizeof(s_surf_action_network_CM02_t), size,
475 surf_network_model, failed);
477 xbt_swag_insert(action, action->generic_action.state_set);
480 action->latency = 0.0;
481 action->weight = 0.0;
482 bandwidth_bound = -1.0;
483 xbt_dynar_foreach(route, i, link) {
484 action->latency += link->lat_current;
487 sg_weight_S_parameter /
488 (link->lmm_resource.power.peak * link->lmm_resource.power.scale);
489 if(bandwidth_bound < 0.0)
490 bandwidth_bound = (*bandwidth_factor_callback)(size) * (link->lmm_resource.power.peak * link->lmm_resource.power.scale);
492 bandwidth_bound = min(bandwidth_bound, (*bandwidth_factor_callback)(size) * (link->lmm_resource.power.peak * link->lmm_resource.power.scale));
494 /* LARGE PLATFORMS HACK:
495 Add src->link and dst->link latencies */
496 action->lat_current = action->latency;
497 action->latency *= (*latency_factor_callback)(size);
498 action->rate = (*bandwidth_constraint_callback)(action->rate, bandwidth_bound, size);
500 /* LARGE PLATFORMS HACK:
501 lmm_variable_new(..., total_route_size) */
502 if (action->latency > 0)
504 lmm_variable_new(network_maxmin_system, action, 0.0, -1.0,
505 xbt_dynar_length(route));
508 lmm_variable_new(network_maxmin_system, action, 1.0, -1.0,
509 xbt_dynar_length(route));
511 if (action->rate < 0) {
512 if (action->lat_current > 0)
513 lmm_update_variable_bound(network_maxmin_system, action->variable,
514 sg_tcp_gamma / (2.0 * action->lat_current));
516 lmm_update_variable_bound(network_maxmin_system, action->variable,
519 if (action->lat_current > 0)
520 lmm_update_variable_bound(network_maxmin_system, action->variable,
522 sg_tcp_gamma / (2.0 *
523 action->lat_current)));
525 lmm_update_variable_bound(network_maxmin_system, action->variable,
529 xbt_dynar_foreach(route, i, link) {
530 lmm_expand(network_maxmin_system, link->lmm_resource.constraint,
531 action->variable, 1.0);
533 /* LARGE PLATFORMS HACK:
534 expand also with src->link and dst->link */
536 /* saving the src and dst of this communication */
542 return (surf_action_t) action;
545 static double net_get_link_bandwidth(const void *link)
547 surf_resource_lmm_t lmm = (surf_resource_lmm_t) link;
548 return lmm->power.peak * lmm->power.scale;
551 static double net_get_link_latency(const void *link)
553 return ((link_CM02_t) link)->lat_current;
556 static int net_link_shared(const void *link)
558 return lmm_constraint_is_shared(((surf_resource_lmm_t) link)->constraint);
561 static void net_action_suspend(surf_action_t action)
563 ((surf_action_network_CM02_t) action)->suspended = 1;
564 lmm_update_variable_weight(network_maxmin_system,
565 ((surf_action_network_CM02_t) action)->variable,
569 static void net_action_resume(surf_action_t action)
571 if (((surf_action_network_CM02_t) action)->suspended) {
572 lmm_update_variable_weight(network_maxmin_system,
573 ((surf_action_network_CM02_t)
575 ((surf_action_network_CM02_t) action)->weight);
576 ((surf_action_network_CM02_t) action)->suspended = 0;
580 static int net_action_is_suspended(surf_action_t action)
582 return ((surf_action_network_CM02_t) action)->suspended;
585 static void net_action_set_max_duration(surf_action_t action, double duration)
587 action->max_duration = duration;
592 * FIXME : this should be done in the binding code !!
594 void network_create_resource(char *name,
595 double initial_bandwidth,double initial_latency)
600 tmgr_trace_t bw_trace;
602 tmgr_trace_t lat_trace;
603 e_surf_resource_state_t state_initial_link = SURF_RESOURCE_ON;
604 e_surf_link_sharing_policy_t policy_initial_link = SURF_LINK_SHARED;
605 tmgr_trace_t state_trace;
607 name_link = xbt_strdup(name);
608 bw_initial = initial_bandwidth;
609 bw_trace = tmgr_trace_new("");
610 lat_initial = initial_latency;
611 lat_trace = tmgr_trace_new("");
612 // FIXME Hard Coded Values
613 //state_initial_link = SURF_RESOURCE_ON;
614 //policy_initial_link = SURF_LINK_SHARED;
615 state_trace = tmgr_trace_new("");
617 net_link_new(name_link, bw_initial, bw_trace,
618 lat_initial, lat_trace, state_initial_link, state_trace,
619 policy_initial_link, xbt_dict_new());
622 static void net_finalize(void)
624 surf_model_exit(surf_network_model);
625 surf_network_model = NULL;
627 used_routing->finalize();
628 lmm_system_free(network_maxmin_system);
629 network_maxmin_system = NULL;
632 static void surf_network_model_init_internal(void)
634 surf_network_model = surf_model_init();
636 surf_network_model->name = "network";
637 surf_network_model->action_unref = net_action_unref;
638 surf_network_model->action_cancel = net_action_cancel;
639 surf_network_model->action_recycle = net_action_recycle;
640 surf_network_model->get_remains = net_action_get_remains;
642 surf_network_model->model_private->resource_used = net_resource_used;
643 surf_network_model->model_private->share_resources = net_share_resources;
644 surf_network_model->model_private->update_actions_state =
645 net_update_actions_state;
646 surf_network_model->model_private->update_resource_state =
647 net_update_resource_state;
648 surf_network_model->model_private->finalize = net_finalize;
650 surf_network_model->suspend = net_action_suspend;
651 surf_network_model->resume = net_action_resume;
652 surf_network_model->is_suspended = net_action_is_suspended;
653 surf_cpu_model->set_max_duration = net_action_set_max_duration;
655 surf_network_model->extension.network.communicate = net_communicate;
656 surf_network_model->extension.network.get_link_bandwidth =
657 net_get_link_bandwidth;
658 surf_network_model->extension.network.get_link_latency = net_get_link_latency;
659 surf_network_model->extension.network.link_shared = net_link_shared;
660 surf_network_model->extension.network.create_resource = network_create_resource;
661 surf_network_model->extension.network.add_traces = net_add_traces;
663 if (!network_maxmin_system)
664 network_maxmin_system = lmm_system_new();
666 routing_model_create(sizeof(link_CM02_t),
667 net_link_new(xbt_strdup("__loopback__"),
668 498000000, NULL, 0.000015, NULL,
669 SURF_RESOURCE_ON, NULL, SURF_LINK_FATPIPE,
675 /************************************************************************/
676 /* New model based on LV08 and experimental results of MPI ping-pongs */
677 /************************************************************************/
678 void surf_network_model_init_SMPI(const char *filename)
681 if (surf_network_model)
683 surf_network_model_init_internal();
684 latency_factor_callback = &smpi_latency_factor;
685 bandwidth_factor_callback = &smpi_bandwidth_factor;
686 bandwidth_constraint_callback = &smpi_bandwidth_constraint;
687 net_define_callbacks(filename);
688 xbt_dynar_push(model_list, &surf_network_model);
689 network_solve = lmm_solve;
691 xbt_cfg_setdefault_double(_surf_cfg_set,"network/weight_S", 8775);
693 update_model_description(surf_network_model_description,
694 "SMPI", surf_network_model);
697 /************************************************************************/
698 /* New model based on optimizations discussed during this thesis */
699 /************************************************************************/
700 void surf_network_model_init_LegrandVelho(const char *filename)
703 if (surf_network_model)
705 surf_network_model_init_internal();
706 net_define_callbacks(filename);
707 xbt_dynar_push(model_list, &surf_network_model);
708 network_solve = lmm_solve;
710 xbt_cfg_setdefault_double(_surf_cfg_set,"network/latency_factor",10.4);
711 xbt_cfg_setdefault_double(_surf_cfg_set,"network/bandwidth_factor", 0.92);
712 xbt_cfg_setdefault_double(_surf_cfg_set,"network/weight_S", 8775);
714 update_model_description(surf_network_model_description,
715 "LV08", surf_network_model);
718 /***************************************************************************/
719 /* The nice TCP sharing model designed by Loris Marchal and Henri Casanova */
720 /***************************************************************************/
721 /* @TechReport{ rr-lip2002-40, */
722 /* author = {Henri Casanova and Loris Marchal}, */
723 /* institution = {LIP}, */
724 /* title = {A Network Model for Simulation of Grid Application}, */
725 /* number = {2002-40}, */
729 void surf_network_model_init_CM02(const char *filename)
732 if (surf_network_model)
734 surf_network_model_init_internal();
735 net_define_callbacks(filename);
736 xbt_dynar_push(model_list, &surf_network_model);
737 network_solve = lmm_solve;
739 update_model_description(surf_network_model_description,
740 "CM02", surf_network_model);
743 void surf_network_model_init_Reno(const char *filename)
745 if (surf_network_model)
747 surf_network_model_init_internal();
748 net_define_callbacks(filename);
750 xbt_dynar_push(model_list, &surf_network_model);
751 lmm_set_default_protocol_function(func_reno_f, func_reno_fp, func_reno_fpi);
752 network_solve = lagrange_solve;
754 xbt_cfg_setdefault_double(_surf_cfg_set,"network/latency_factor", 10.4);
755 xbt_cfg_setdefault_double(_surf_cfg_set,"network/bandwidth_factor", 0.92);
756 xbt_cfg_setdefault_double(_surf_cfg_set,"network/weight_S", 8775);
758 update_model_description(surf_network_model_description,
759 "Reno", surf_network_model);
763 void surf_network_model_init_Reno2(const char *filename)
765 if (surf_network_model)
767 surf_network_model_init_internal();
768 net_define_callbacks(filename);
770 xbt_dynar_push(model_list, &surf_network_model);
771 lmm_set_default_protocol_function(func_reno2_f, func_reno2_fp,
773 network_solve = lagrange_solve;
775 xbt_cfg_setdefault_double(_surf_cfg_set,"network/latency_factor", 10.4);
776 xbt_cfg_setdefault_double(_surf_cfg_set,"network/bandwidth_factor", 0.92);
777 xbt_cfg_setdefault_double(_surf_cfg_set,"network/weight_S_parameter", 8775);
779 update_model_description(surf_network_model_description,
780 "Reno2", surf_network_model);
783 void surf_network_model_init_Vegas(const char *filename)
785 if (surf_network_model)
787 surf_network_model_init_internal();
788 net_define_callbacks(filename);
790 xbt_dynar_push(model_list, &surf_network_model);
791 lmm_set_default_protocol_function(func_vegas_f, func_vegas_fp,
793 network_solve = lagrange_solve;
795 xbt_cfg_setdefault_double(_surf_cfg_set,"network/latency_factor", 10.4);
796 xbt_cfg_setdefault_double(_surf_cfg_set,"network/bandwidth_factor", 0.92);
797 xbt_cfg_setdefault_double(_surf_cfg_set,"network/weight_S", 8775);
799 update_model_description(surf_network_model_description,
800 "Vegas", surf_network_model);