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;
23 int sg_network_fullduplex = 0;
26 /******************************************************************************/
27 /* Factors callbacks */
28 /******************************************************************************/
29 static double constant_latency_factor(double size)
31 return sg_latency_factor;
34 static double constant_bandwidth_factor(double size)
36 return sg_bandwidth_factor;
39 static double constant_bandwidth_constraint(double rate, double bound, double size)
44 /**********************/
46 /**********************/
47 static double smpi_latency_factor(double size)
49 /* 1 B <= size <= 1 KiB */
54 /* 2 KiB <= size <= 32 KiB */
55 if (size <= 32768.0) {
59 /* 64 KiB <= size <= 4 MiB */
63 static double smpi_bandwidth_factor(double size)
65 /* 1 B <= size <= 1 KiB */
70 /* 2 KiB <= size <= 32 KiB */
71 if (size <= 32768.0) {
75 /* 64 KiB <= size <= 4 MiB */
79 static double smpi_bandwidth_constraint(double rate, double bound, double size)
81 return rate < 0 ? bound : min(bound, rate * smpi_bandwidth_factor(size));
85 static double (*latency_factor_callback)(double) = &constant_latency_factor;
86 static double (*bandwidth_factor_callback)(double) = &constant_bandwidth_factor;
87 static double (*bandwidth_constraint_callback)(double, double, double) = &constant_bandwidth_constraint;
90 static link_CM02_t net_link_new(char *name,
92 tmgr_trace_t bw_trace,
94 tmgr_trace_t lat_trace,
95 e_surf_resource_state_t
97 tmgr_trace_t state_trace,
98 e_surf_link_sharing_policy_t
99 policy, xbt_dict_t properties)
101 link_CM02_t nw_link = (link_CM02_t)
102 surf_resource_lmm_new(sizeof(s_link_CM02_t),
103 surf_network_model, name, properties,
104 network_maxmin_system,
105 sg_bandwidth_factor * bw_initial,
107 state_initial, state_trace,
108 bw_initial, bw_trace);
110 xbt_assert1(!xbt_dict_get_or_null(surf_network_model->resource_set, name),
111 "Link '%s' declared several times in the platform file.", name);
113 nw_link->lat_current = lat_initial;
116 tmgr_history_add_trace(history, lat_trace, 0.0, 0, nw_link);
118 if (policy == SURF_LINK_FATPIPE)
119 lmm_constraint_shared(nw_link->lmm_resource.constraint);
121 xbt_dict_set(surf_network_model->resource_set, name, nw_link,
124 TRACE_surf_link_declaration (name, bw_initial, lat_initial);
130 static void net_parse_link_init(void)
134 tmgr_trace_t bw_trace;
136 tmgr_trace_t lat_trace;
137 e_surf_resource_state_t state_initial_link = SURF_RESOURCE_ON;
138 e_surf_link_sharing_policy_t policy_initial_link = SURF_LINK_SHARED;
139 tmgr_trace_t state_trace;
141 name_link = xbt_strdup(A_surfxml_link_id);
142 surf_parse_get_double(&bw_initial, A_surfxml_link_bandwidth);
143 bw_trace = tmgr_trace_new(A_surfxml_link_bandwidth_file);
144 surf_parse_get_double(&lat_initial, A_surfxml_link_latency);
145 lat_trace = tmgr_trace_new(A_surfxml_link_latency_file);
147 xbt_assert0((A_surfxml_link_state == A_surfxml_link_state_ON)
148 || (A_surfxml_link_state ==
149 A_surfxml_link_state_OFF), "Invalid state");
150 if (A_surfxml_link_state == A_surfxml_link_state_ON)
151 state_initial_link = SURF_RESOURCE_ON;
152 else if (A_surfxml_link_state == A_surfxml_link_state_OFF)
153 state_initial_link = SURF_RESOURCE_OFF;
155 if (A_surfxml_link_sharing_policy == A_surfxml_link_sharing_policy_SHARED)
156 policy_initial_link = SURF_LINK_SHARED;
157 else if (A_surfxml_link_sharing_policy ==
158 A_surfxml_link_sharing_policy_FATPIPE)
159 policy_initial_link = SURF_LINK_FATPIPE;
161 state_trace = tmgr_trace_new(A_surfxml_link_state_file);
163 net_link_new(name_link, bw_initial, bw_trace,
164 lat_initial, lat_trace, state_initial_link, state_trace,
165 policy_initial_link, xbt_dict_new());
169 static void net_create_resource(char *name,
171 tmgr_trace_t bw_trace,
173 tmgr_trace_t lat_trace,
174 e_surf_resource_state_t
176 tmgr_trace_t state_trace,
177 e_surf_link_sharing_policy_t policy,
178 xbt_dict_t properties)
180 net_link_new(name, bw_initial, bw_trace,
181 lat_initial, lat_trace, state_initial, state_trace,
182 policy, xbt_dict_new());
184 static void net_add_traces(void)
186 xbt_dict_cursor_t cursor = NULL;
187 char *trace_name, *elm;
189 static int called = 0;
194 /* connect all traces relative to network */
195 xbt_dict_foreach(trace_connect_list_link_avail, cursor, trace_name, elm) {
196 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
198 xbt_dict_get_or_null(surf_network_model->resource_set, elm);
200 xbt_assert2(link, "Cannot connect trace %s to link %s: link undefined",
202 xbt_assert2(trace, "Cannot connect trace %s to link %s: trace undefined",
205 link->lmm_resource.state_event =
206 tmgr_history_add_trace(history, trace, 0.0, 0, link);
209 xbt_dict_foreach(trace_connect_list_bandwidth, cursor, trace_name, elm) {
210 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
212 xbt_dict_get_or_null(surf_network_model->resource_set, elm);
214 xbt_assert2(link, "Cannot connect trace %s to link %s: link undefined",
216 xbt_assert2(trace, "Cannot connect trace %s to link %s: trace undefined",
219 link->lmm_resource.power.event =
220 tmgr_history_add_trace(history, trace, 0.0, 0, link);
223 xbt_dict_foreach(trace_connect_list_latency, cursor, trace_name, elm) {
224 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
226 xbt_dict_get_or_null(surf_network_model->resource_set, elm);
228 xbt_assert2(link, "Cannot connect trace %s to link %s: link undefined",
230 xbt_assert2(trace, "Cannot connect trace %s to link %s: trace undefined",
233 link->lat_event = tmgr_history_add_trace(history, trace, 0.0, 0, link);
237 static void net_define_callbacks(const char *file)
239 /* Figuring out the network links */
240 surfxml_add_callback(STag_surfxml_link_cb_list, &net_parse_link_init);
241 surfxml_add_callback(ETag_surfxml_platform_cb_list, &net_add_traces);
244 static int net_resource_used(void *resource_id)
246 return lmm_constraint_used(network_maxmin_system,
247 ((surf_resource_lmm_t) resource_id)->constraint);
250 static int net_action_unref(surf_action_t action)
253 if (!action->refcount) {
254 xbt_swag_remove(action, action->state_set);
255 if (((surf_action_network_CM02_t) action)->variable)
256 lmm_variable_free(network_maxmin_system,
257 ((surf_action_network_CM02_t) action)->variable);
264 static void net_action_cancel(surf_action_t action)
266 surf_network_model->action_state_set(action, SURF_ACTION_FAILED);
269 void net_action_recycle(surf_action_t action)
274 int net_get_link_latency(surf_action_t action)
276 return action->latency_limited;
279 double net_action_get_remains(surf_action_t action)
281 return action->remains;
284 static double net_share_resources(double now)
286 s_surf_action_network_CM02_t s_action;
287 surf_action_network_CM02_t action = NULL;
288 xbt_swag_t running_actions = surf_network_model->states.running_action_set;
291 min = generic_maxmin_share_resources(running_actions,
292 xbt_swag_offset(s_action,
294 network_maxmin_system, network_solve);
296 #define VARIABLE(action) (*((lmm_variable_t*)(((char *) (action)) + xbt_swag_offset(s_action, variable) )))
298 xbt_swag_foreach(action, running_actions) {
299 if( lmm_is_variable_limited_by_latency(action->variable) ){
300 (action->generic_action).latency_limited = 1;
302 (action->generic_action).latency_limited = 0;
304 if (action->latency > 0) {
306 min = action->latency;
307 else if (action->latency < min)
308 min = action->latency;
315 static void net_update_actions_state(double now, double delta)
318 surf_action_network_CM02_t action = NULL;
319 surf_action_network_CM02_t next_action = NULL;
320 xbt_swag_t running_actions = surf_network_model->states.running_action_set;
322 xbt_swag_t failed_actions =
323 surf_network_model->states.failed_action_set;
326 xbt_swag_foreach_safe(action, next_action, running_actions) {
329 xbt_dynar_t route = used_routing->get_route(action->src, action->dst);
332 xbt_dynar_foreach(route, i, link) {
333 TRACE_surf_link_set_utilization (link->lmm_resource.generic_resource.name,
334 action->generic_action.data, lmm_variable_getvalue(action->variable), now-delta, delta);
339 if (action->latency > 0) {
340 if (action->latency > deltap) {
341 double_update(&(action->latency), deltap);
344 double_update(&(deltap), action->latency);
345 action->latency = 0.0;
347 if ((action->latency == 0.0) && !(action->suspended))
348 lmm_update_variable_weight(network_maxmin_system, action->variable,
351 double_update(&(action->generic_action.remains),
352 lmm_variable_getvalue(action->variable) * deltap);
353 if (action->generic_action.max_duration != NO_MAX_DURATION)
354 double_update(&(action->generic_action.max_duration), delta);
356 if ((action->generic_action.remains <= 0) &&
357 (lmm_get_variable_weight(action->variable) > 0)) {
358 action->generic_action.finish = surf_get_clock();
359 surf_network_model->action_state_set((surf_action_t) action,
361 } else if ((action->generic_action.max_duration != NO_MAX_DURATION)
362 && (action->generic_action.max_duration <= 0)) {
363 action->generic_action.finish = surf_get_clock();
364 surf_network_model->action_state_set((surf_action_t) action,
372 static void net_update_resource_state(void *id,
373 tmgr_trace_event_t event_type,
374 double value, double date)
376 link_CM02_t nw_link = id;
377 /* printf("[" "%lg" "] Asking to update network card \"%s\" with value " */
378 /* "%lg" " for event %p\n", surf_get_clock(), nw_link->name, */
379 /* value, event_type); */
381 if (event_type == nw_link->lmm_resource.power.event) {
383 sg_weight_S_parameter / value - sg_weight_S_parameter /
384 (nw_link->lmm_resource.power.peak * nw_link->lmm_resource.power.scale);
385 lmm_variable_t var = NULL;
386 lmm_element_t elem = NULL;
387 surf_action_network_CM02_t action = NULL;
389 nw_link->lmm_resource.power.peak = value;
390 lmm_update_constraint_bound(network_maxmin_system,
391 nw_link->lmm_resource.constraint,
392 sg_bandwidth_factor *
393 (nw_link->lmm_resource.power.peak *
394 nw_link->lmm_resource.power.scale));
396 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));
398 if (sg_weight_S_parameter > 0) {
399 while ((var = lmm_get_var_from_cnst
400 (network_maxmin_system, nw_link->lmm_resource.constraint,
402 action = lmm_variable_id(var);
403 action->weight += delta;
404 if (!(action->suspended))
405 lmm_update_variable_weight(network_maxmin_system, action->variable,
409 if (tmgr_trace_event_free(event_type))
410 nw_link->lmm_resource.power.event = NULL;
411 } else if (event_type == nw_link->lat_event) {
412 double delta = value - nw_link->lat_current;
413 lmm_variable_t var = NULL;
414 lmm_element_t elem = NULL;
415 surf_action_network_CM02_t action = NULL;
417 nw_link->lat_current = value;
418 while ((var = lmm_get_var_from_cnst
419 (network_maxmin_system, nw_link->lmm_resource.constraint,
421 action = lmm_variable_id(var);
422 action->lat_current += delta;
423 action->weight += delta;
424 if (action->rate < 0)
425 lmm_update_variable_bound(network_maxmin_system, action->variable,
426 sg_tcp_gamma / (2.0 * action->lat_current));
428 lmm_update_variable_bound(network_maxmin_system, action->variable,
430 sg_tcp_gamma / (2.0 *
431 action->lat_current)));
433 if(action->rate < sg_tcp_gamma / (2.0 * action->lat_current) ){
434 INFO0("Flow is limited BYBANDWIDTH");
436 INFO1("Flow is limited BYLATENCY, latency of flow is %f",action->lat_current);
439 if (!(action->suspended))
440 lmm_update_variable_weight(network_maxmin_system, action->variable,
444 if (tmgr_trace_event_free(event_type))
445 nw_link->lat_event = NULL;
446 } else if (event_type == nw_link->lmm_resource.state_event) {
448 nw_link->lmm_resource.state_current = SURF_RESOURCE_ON;
450 lmm_constraint_t cnst = nw_link->lmm_resource.constraint;
451 lmm_variable_t var = NULL;
452 lmm_element_t elem = NULL;
454 nw_link->lmm_resource.state_current = SURF_RESOURCE_OFF;
455 while ((var = lmm_get_var_from_cnst
456 (network_maxmin_system, cnst, &elem))) {
457 surf_action_t action = lmm_variable_id(var);
459 if (surf_action_state_get(action) == SURF_ACTION_RUNNING ||
460 surf_action_state_get(action) == SURF_ACTION_READY) {
461 action->finish = date;
462 surf_network_model->action_state_set(action, SURF_ACTION_FAILED);
466 if (tmgr_trace_event_free(event_type))
467 nw_link->lmm_resource.state_event = NULL;
469 CRITICAL0("Unknown event ! \n");
477 static surf_action_t net_communicate(const char *src_name, const char *dst_name,
478 int src, int dst, double size, double rate)
483 surf_action_network_CM02_t action = NULL;
484 double bandwidth_bound;
485 /* LARGE PLATFORMS HACK:
486 Add a link_CM02_t *link and a int link_nb to network_card_CM02_t. It will represent local links for this node
487 Use the cluster_id for ->id */
488 xbt_dynar_t route = used_routing->get_route(src, dst);
489 xbt_dynar_t back_route = NULL;
490 int constraints_per_variable = 0;
492 if( sg_network_fullduplex == 1){
493 back_route = used_routing->get_route(dst, src);
496 /* LARGE PLATFORMS HACK:
497 total_route_size = route_size + src->link_nb + dst->nb */
499 XBT_IN4("(%s,%s,%g,%g)", src_name, dst_name, size, rate);
500 /* LARGE PLATFORMS HACK:
501 assert on total_route_size */
502 xbt_assert2(xbt_dynar_length(route),
503 "You're trying to send data from %s to %s but there is no connection between these two hosts.",
506 xbt_dynar_foreach(route, i, link) {
507 if (link->lmm_resource.state_current == SURF_RESOURCE_OFF) {
513 surf_action_new(sizeof(s_surf_action_network_CM02_t), size,
514 surf_network_model, failed);
515 (action->generic_action).latency_limited = 0;
517 xbt_swag_insert(action, action->generic_action.state_set);
520 action->latency = 0.0;
521 action->weight = 0.0;
522 bandwidth_bound = -1.0;
523 xbt_dynar_foreach(route, i, link) {
524 action->latency += link->lat_current;
527 sg_weight_S_parameter /
528 (link->lmm_resource.power.peak * link->lmm_resource.power.scale);
529 if(bandwidth_bound < 0.0)
530 bandwidth_bound = (*bandwidth_factor_callback)(size) * (link->lmm_resource.power.peak * link->lmm_resource.power.scale);
532 bandwidth_bound = min(bandwidth_bound, (*bandwidth_factor_callback)(size) * (link->lmm_resource.power.peak * link->lmm_resource.power.scale));
534 /* LARGE PLATFORMS HACK:
535 Add src->link and dst->link latencies */
536 action->lat_current = action->latency;
537 action->latency *= (*latency_factor_callback)(size);
538 action->rate = (*bandwidth_constraint_callback)(action->rate, bandwidth_bound, size);
540 /* LARGE PLATFORMS HACK:
541 lmm_variable_new(..., total_route_size) */
542 if(back_route != NULL){
543 constraints_per_variable = xbt_dynar_length(route)+xbt_dynar_length(back_route);
545 constraints_per_variable = xbt_dynar_length(route);
548 if (action->latency > 0)
550 lmm_variable_new(network_maxmin_system, action, 0.0, -1.0,constraints_per_variable);
553 lmm_variable_new(network_maxmin_system, action, 1.0, -1.0,constraints_per_variable);
555 if (action->rate < 0) {
556 if (action->lat_current > 0)
557 lmm_update_variable_bound(network_maxmin_system, action->variable,
558 sg_tcp_gamma / (2.0 * action->lat_current));
560 lmm_update_variable_bound(network_maxmin_system, action->variable,
563 if (action->lat_current > 0)
564 lmm_update_variable_bound(network_maxmin_system, action->variable,
566 sg_tcp_gamma / (2.0 *
567 action->lat_current)));
569 lmm_update_variable_bound(network_maxmin_system, action->variable,
573 xbt_dynar_foreach(route, i, link) {
574 lmm_expand(network_maxmin_system, link->lmm_resource.constraint,
575 action->variable, 1.0);
578 if( sg_network_fullduplex == 1){
579 DEBUG1("Fullduplex active adding backward flow using 5%c", '%');
580 xbt_dynar_foreach(back_route, i, link) {
581 lmm_expand(network_maxmin_system, link->lmm_resource.constraint,
582 action->variable, .05);
584 } /* LARGE PLATFORMS HACK:
585 expand also with src->link and dst->link */
587 /* saving the src and dst of this communication */
593 return (surf_action_t) action;
596 static double net_get_link_bandwidth(const void *link)
598 surf_resource_lmm_t lmm = (surf_resource_lmm_t) link;
599 return lmm->power.peak * lmm->power.scale;
602 static int net_link_shared(const void *link)
604 return lmm_constraint_is_shared(((surf_resource_lmm_t) link)->constraint);
607 static void net_action_suspend(surf_action_t action)
609 ((surf_action_network_CM02_t) action)->suspended = 1;
610 lmm_update_variable_weight(network_maxmin_system,
611 ((surf_action_network_CM02_t) action)->variable,
615 static void net_action_resume(surf_action_t action)
617 if (((surf_action_network_CM02_t) action)->suspended) {
618 lmm_update_variable_weight(network_maxmin_system,
619 ((surf_action_network_CM02_t)
621 ((surf_action_network_CM02_t) action)->weight);
622 ((surf_action_network_CM02_t) action)->suspended = 0;
626 static int net_action_is_suspended(surf_action_t action)
628 return ((surf_action_network_CM02_t) action)->suspended;
631 void net_action_set_max_duration(surf_action_t action, double duration)
633 action->max_duration = duration;
636 static void net_finalize(void)
638 surf_model_exit(surf_network_model);
639 surf_network_model = NULL;
641 used_routing->finalize();
642 lmm_system_free(network_maxmin_system);
643 network_maxmin_system = NULL;
646 static void surf_network_model_init_internal(void)
648 surf_network_model = surf_model_init();
650 surf_network_model->name = "network";
651 surf_network_model->action_unref = net_action_unref;
652 surf_network_model->action_cancel = net_action_cancel;
653 surf_network_model->action_recycle = net_action_recycle;
654 surf_network_model->get_remains = net_action_get_remains;
655 surf_network_model->get_latency_limited = net_get_link_latency;
657 surf_network_model->model_private->resource_used = net_resource_used;
658 surf_network_model->model_private->share_resources = net_share_resources;
659 surf_network_model->model_private->update_actions_state =
660 net_update_actions_state;
661 surf_network_model->model_private->update_resource_state =
662 net_update_resource_state;
663 surf_network_model->model_private->finalize = net_finalize;
665 surf_network_model->suspend = net_action_suspend;
666 surf_network_model->resume = net_action_resume;
667 surf_network_model->is_suspended = net_action_is_suspended;
668 surf_cpu_model->set_max_duration = net_action_set_max_duration;
670 surf_network_model->extension.network.communicate = net_communicate;
671 surf_network_model->extension.network.get_link_bandwidth =
672 net_get_link_bandwidth;
673 surf_network_model->extension.network.link_shared = net_link_shared;
674 surf_network_model->extension.network.add_traces = net_add_traces;
675 surf_network_model->extension.network.create_resource = net_create_resource;
677 if (!network_maxmin_system)
678 network_maxmin_system = lmm_system_new();
680 routing_model_create(sizeof(link_CM02_t),
681 net_link_new(xbt_strdup("__loopback__"),
682 498000000, NULL, 0.000015, NULL,
683 SURF_RESOURCE_ON, NULL, SURF_LINK_FATPIPE,
689 /************************************************************************/
690 /* New model based on LV08 and experimental results of MPI ping-pongs */
691 /************************************************************************/
692 void surf_network_model_init_SMPI(const char *filename)
695 if (surf_network_model)
697 surf_network_model_init_internal();
698 latency_factor_callback = &smpi_latency_factor;
699 bandwidth_factor_callback = &smpi_bandwidth_factor;
700 bandwidth_constraint_callback = &smpi_bandwidth_constraint;
701 net_define_callbacks(filename);
702 xbt_dynar_push(model_list, &surf_network_model);
703 network_solve = lmm_solve;
705 xbt_cfg_setdefault_double(_surf_cfg_set,"network/weight_S", 8775);
707 update_model_description(surf_network_model_description,
708 "SMPI", surf_network_model);
711 /************************************************************************/
712 /* New model based on optimizations discussed during this thesis */
713 /************************************************************************/
714 void surf_network_model_init_LegrandVelho(const char *filename)
717 if (surf_network_model)
719 surf_network_model_init_internal();
720 net_define_callbacks(filename);
721 xbt_dynar_push(model_list, &surf_network_model);
722 network_solve = lmm_solve;
724 xbt_cfg_setdefault_double(_surf_cfg_set,"network/latency_factor",10.4);
725 xbt_cfg_setdefault_double(_surf_cfg_set,"network/bandwidth_factor", 0.92);
726 xbt_cfg_setdefault_double(_surf_cfg_set,"network/weight_S", 8775);
728 update_model_description(surf_network_model_description,
729 "LV08", surf_network_model);
732 /***************************************************************************/
733 /* The nice TCP sharing model designed by Loris Marchal and Henri Casanova */
734 /***************************************************************************/
735 /* @TechReport{ rr-lip2002-40, */
736 /* author = {Henri Casanova and Loris Marchal}, */
737 /* institution = {LIP}, */
738 /* title = {A Network Model for Simulation of Grid Application}, */
739 /* number = {2002-40}, */
743 void surf_network_model_init_CM02(const char *filename)
746 if (surf_network_model)
748 surf_network_model_init_internal();
749 net_define_callbacks(filename);
750 xbt_dynar_push(model_list, &surf_network_model);
751 network_solve = lmm_solve;
753 update_model_description(surf_network_model_description,
754 "CM02", surf_network_model);
757 void surf_network_model_init_Reno(const char *filename)
759 if (surf_network_model)
761 surf_network_model_init_internal();
762 net_define_callbacks(filename);
764 xbt_dynar_push(model_list, &surf_network_model);
765 lmm_set_default_protocol_function(func_reno_f, func_reno_fp, func_reno_fpi);
766 network_solve = lagrange_solve;
768 xbt_cfg_setdefault_double(_surf_cfg_set,"network/latency_factor", 10.4);
769 xbt_cfg_setdefault_double(_surf_cfg_set,"network/bandwidth_factor", 0.92);
770 xbt_cfg_setdefault_double(_surf_cfg_set,"network/weight_S", 8775);
772 update_model_description(surf_network_model_description,
773 "Reno", surf_network_model);
777 void surf_network_model_init_Reno2(const char *filename)
779 if (surf_network_model)
781 surf_network_model_init_internal();
782 net_define_callbacks(filename);
784 xbt_dynar_push(model_list, &surf_network_model);
785 lmm_set_default_protocol_function(func_reno2_f, func_reno2_fp,
787 network_solve = lagrange_solve;
789 xbt_cfg_setdefault_double(_surf_cfg_set,"network/latency_factor", 10.4);
790 xbt_cfg_setdefault_double(_surf_cfg_set,"network/bandwidth_factor", 0.92);
791 xbt_cfg_setdefault_double(_surf_cfg_set,"network/weight_S_parameter", 8775);
793 update_model_description(surf_network_model_description,
794 "Reno2", surf_network_model);
797 void surf_network_model_init_Vegas(const char *filename)
799 if (surf_network_model)
801 surf_network_model_init_internal();
802 net_define_callbacks(filename);
804 xbt_dynar_push(model_list, &surf_network_model);
805 lmm_set_default_protocol_function(func_vegas_f, func_vegas_fp,
807 network_solve = lagrange_solve;
809 xbt_cfg_setdefault_double(_surf_cfg_set,"network/latency_factor", 10.4);
810 xbt_cfg_setdefault_double(_surf_cfg_set,"network/bandwidth_factor", 0.92);
811 xbt_cfg_setdefault_double(_surf_cfg_set,"network/weight_S", 8775);
813 update_model_description(surf_network_model_description,
814 "Vegas", surf_network_model);