1 /* Copyright (c) 2004-2011. 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 #include "surf/surfxml_parse_values.h"
12 #include "surf/surf_resource.h"
13 #include "surf/surf_resource_lmm.h"
16 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_network, surf,
17 "Logging specific to the SURF network module");
19 surf_model_t surf_network_model = NULL;
20 static lmm_system_t network_maxmin_system = NULL;
21 static void (*network_solve) (lmm_system_t) = NULL;
23 double sg_sender_gap = 0.0;
24 double sg_latency_factor = 1.0; /* default value; can be set by model or from command line */
25 double sg_bandwidth_factor = 1.0; /* default value; can be set by model or from command line */
26 double sg_weight_S_parameter = 0.0; /* default value; can be set by model or from command line */
28 double sg_tcp_gamma = 0.0;
29 int sg_network_fullduplex = 0;
31 xbt_dict_t gap_lookup = NULL;
33 static double net_get_link_bandwidth(const void *link);
35 static void gap_append(double size, const link_CM02_t link, surf_action_network_CM02_t action) {
36 const char* src = link->lmm_resource.generic_resource.name;
38 surf_action_network_CM02_t last_action;
41 if(sg_sender_gap > 0.0) {
43 gap_lookup = xbt_dict_new_homogeneous(NULL);
45 fifo = (xbt_fifo_t)xbt_dict_get_or_null(gap_lookup, src);
46 action->sender.gap = 0.0;
47 if(fifo && xbt_fifo_size(fifo) > 0) {
48 /* Compute gap from last send */
49 last_action = (surf_action_network_CM02_t)xbt_fifo_get_item_content(xbt_fifo_get_last_item(fifo));
50 bw = net_get_link_bandwidth(link);
51 action->sender.gap = last_action->sender.gap + max(sg_sender_gap, last_action->sender.size / bw);
52 action->latency += action->sender.gap;
54 /* Append action as last send */
55 action->sender.link_name = link->lmm_resource.generic_resource.name;
56 fifo = (xbt_fifo_t)xbt_dict_get_or_null(gap_lookup, action->sender.link_name);
58 fifo = xbt_fifo_new();
59 xbt_dict_set(gap_lookup, action->sender.link_name, fifo, NULL);
61 action->sender.fifo_item = xbt_fifo_push(fifo, action);
62 action->sender.size = size;
66 static void gap_unknown(surf_action_network_CM02_t action) {
67 action->sender.gap = 0.0;
68 action->sender.link_name = NULL;
69 action->sender.fifo_item = NULL;
70 action->sender.size = 0.0;
73 static void gap_remove(surf_action_network_CM02_t action) {
77 if(sg_sender_gap > 0.0 && action->sender.link_name && action->sender.fifo_item) {
78 fifo = (xbt_fifo_t)xbt_dict_get_or_null(gap_lookup, action->sender.link_name);
79 xbt_fifo_remove_item(fifo, action->sender.fifo_item);
80 size = xbt_fifo_size(fifo);
83 xbt_dict_remove(gap_lookup, action->sender.link_name);
84 size = xbt_dict_length(gap_lookup);
86 xbt_dict_free(&gap_lookup);
92 /******************************************************************************/
93 /* Factors callbacks */
94 /******************************************************************************/
95 static double constant_latency_factor(double size)
97 return sg_latency_factor;
100 static double constant_bandwidth_factor(double size)
102 return sg_bandwidth_factor;
105 static double constant_bandwidth_constraint(double rate, double bound,
111 /**********************/
113 /**********************/
114 static double smpi_latency_factor(double size)
116 /* 1 B <= size <= 1 KiB */
117 if (size <= 1024.0) {
121 /* 2 KiB <= size <= 32 KiB */
122 if (size <= 32768.0) {
126 /* 64 KiB <= size <= 4 MiB */
130 static double smpi_bandwidth_factor(double size)
132 /* 1 B <= size <= 1 KiB */
133 if (size <= 1024.0) {
137 /* 2 KiB <= size <= 32 KiB */
138 if (size <= 32768.0) {
142 /* 64 KiB <= size <= 4 MiB */
146 static double smpi_bandwidth_constraint(double rate, double bound,
149 return rate < 0 ? bound : min(bound, rate * smpi_bandwidth_factor(size));
153 static double (*latency_factor_callback) (double) =
154 &constant_latency_factor;
155 static double (*bandwidth_factor_callback) (double) =
156 &constant_bandwidth_factor;
157 static double (*bandwidth_constraint_callback) (double, double, double) =
158 &constant_bandwidth_constraint;
161 static void* net_create_resource(const char *name,
163 tmgr_trace_t bw_trace,
165 tmgr_trace_t lat_trace,
166 e_surf_resource_state_t
168 tmgr_trace_t state_trace,
169 e_surf_link_sharing_policy_t
170 policy, xbt_dict_t properties)
172 link_CM02_t nw_link = (link_CM02_t)
173 surf_resource_lmm_new(sizeof(s_link_CM02_t),
174 surf_network_model, name, properties,
175 network_maxmin_system,
176 sg_bandwidth_factor * bw_initial,
178 state_initial, state_trace,
179 bw_initial, bw_trace);
181 xbt_assert(!xbt_lib_get_or_null(link_lib, name, SURF_LINK_LEVEL),
182 "Link '%s' declared several times in the platform file.",
185 nw_link->lat_current = lat_initial;
188 tmgr_history_add_trace(history, lat_trace, 0.0, 0, nw_link);
190 if (policy == SURF_LINK_FATPIPE)
191 lmm_constraint_shared(nw_link->lmm_resource.constraint);
193 xbt_lib_set(link_lib, name, SURF_LINK_LEVEL, nw_link);
198 static void net_parse_link_init(sg_platf_link_cbarg_t link)
200 XBT_DEBUG("link_CM02");
202 if (link->policy == SURF_LINK_FULLDUPLEX) {
204 link_id = bprintf("%s_UP", link->id);
205 net_create_resource(link_id,
207 link->bandwidth_trace,
215 link_id = bprintf("%s_DOWN", link->id);
216 net_create_resource(link_id,
218 link->bandwidth_trace,
224 NULL); /* FIXME: We need to deep copy the properties or
225 * we won't be able to free it */
228 net_create_resource(link->id,
230 link->bandwidth_trace,
240 static void net_add_traces(void)
242 xbt_dict_cursor_t cursor = NULL;
243 char *trace_name, *elm;
245 static int called = 0;
250 /* connect all traces relative to network */
251 xbt_dict_foreach(trace_connect_list_link_avail, cursor, trace_name, elm) {
252 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
254 xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL);
256 xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
259 "Cannot connect trace %s to link %s: trace undefined",
262 link->lmm_resource.state_event =
263 tmgr_history_add_trace(history, trace, 0.0, 0, link);
266 xbt_dict_foreach(trace_connect_list_bandwidth, cursor, trace_name, elm) {
267 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
269 xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL);
271 xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
274 "Cannot connect trace %s to link %s: trace undefined",
277 link->lmm_resource.power.event =
278 tmgr_history_add_trace(history, trace, 0.0, 0, link);
281 xbt_dict_foreach(trace_connect_list_latency, cursor, trace_name, elm) {
282 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
284 xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL);
286 xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
289 "Cannot connect trace %s to link %s: trace undefined",
292 link->lat_event = tmgr_history_add_trace(history, trace, 0.0, 0, link);
296 static void net_define_callbacks(void)
298 /* Figuring out the network links */
299 sg_platf_link_add_cb(net_parse_link_init);
300 sg_platf_postparse_add_cb(net_add_traces);
303 static int net_resource_used(void *resource_id)
305 return lmm_constraint_used(network_maxmin_system,
306 ((surf_resource_lmm_t)
307 resource_id)->constraint);
310 static int net_action_unref(surf_action_t action)
313 if (!action->refcount) {
314 xbt_swag_remove(action, action->state_set);
315 if (((surf_action_network_CM02_t) action)->variable)
316 lmm_variable_free(network_maxmin_system,
317 ((surf_action_network_CM02_t) action)->variable);
319 xbt_free(((surf_action_network_CM02_t) action)->src_name);
320 xbt_free(((surf_action_network_CM02_t) action)->dst_name);
321 xbt_free(action->category);
323 surf_action_free(&action);
329 static void net_action_cancel(surf_action_t action)
331 surf_network_model->action_state_set(action, SURF_ACTION_FAILED);
334 void net_action_recycle(surf_action_t action)
339 #ifdef HAVE_LATENCY_BOUND_TRACKING
340 int net_get_link_latency_limited(surf_action_t action)
342 return action->latency_limited;
346 double net_action_get_remains(surf_action_t action)
348 return action->remains;
351 static double net_share_resources(double now)
353 s_surf_action_network_CM02_t s_action;
354 surf_action_network_CM02_t action = NULL;
355 xbt_swag_t running_actions =
356 surf_network_model->states.running_action_set;
359 min = generic_maxmin_share_resources(running_actions,
360 xbt_swag_offset(s_action,
362 network_maxmin_system,
365 #define VARIABLE(action) (*((lmm_variable_t*)(((char *) (action)) + xbt_swag_offset(s_action, variable) )))
367 xbt_swag_foreach(action, running_actions) {
368 #ifdef HAVE_LATENCY_BOUND_TRACKING
369 if (lmm_is_variable_limited_by_latency(action->variable)) {
370 (action->generic_action).latency_limited = 1;
372 (action->generic_action).latency_limited = 0;
375 if (action->latency > 0) {
377 min = action->latency;
378 else if (action->latency < min)
379 min = action->latency;
383 XBT_DEBUG("Min of share resources %f", min);
388 static void net_update_actions_state(double now, double delta)
391 surf_action_network_CM02_t action = NULL;
392 surf_action_network_CM02_t next_action = NULL;
393 xbt_swag_t running_actions =
394 surf_network_model->states.running_action_set;
396 xbt_swag_t failed_actions =
397 surf_network_model->states.failed_action_set;
400 xbt_swag_foreach_safe(action, next_action, running_actions) {
402 if (action->latency > 0) {
403 if (action->latency > deltap) {
404 double_update(&(action->latency), deltap);
407 double_update(&(deltap), action->latency);
408 action->latency = 0.0;
410 if ((action->latency == 0.0) && !(action->suspended))
411 lmm_update_variable_weight(network_maxmin_system, action->variable,
415 if (TRACE_is_enabled()) {
416 xbt_dynar_t route=NULL;
417 routing_get_route_and_latency(action->src_name, action->dst_name,&route,NULL);
420 xbt_dynar_foreach(route, i, link) {
421 TRACE_surf_link_set_utilization(link->lmm_resource.generic_resource.name,
422 action->generic_action.data,
423 (surf_action_t) action,
424 lmm_variable_getvalue
425 (action->variable), now - delta,
430 if(!lmm_get_number_of_cnst_from_var(network_maxmin_system, action->variable)) {
431 /* There is actually no link used, hence an infinite bandwidth.
432 * This happens often when using models like vivaldi.
433 * In such case, just make sure that the action completes immediately.
435 double_update(&(action->generic_action.remains),
436 action->generic_action.remains);
438 double_update(&(action->generic_action.remains),
439 lmm_variable_getvalue(action->variable) * deltap);
440 if (action->generic_action.max_duration != NO_MAX_DURATION)
441 double_update(&(action->generic_action.max_duration), delta);
443 if ((action->generic_action.remains <= 0) &&
444 (lmm_get_variable_weight(action->variable) > 0)) {
445 action->generic_action.finish = surf_get_clock();
446 surf_network_model->action_state_set((surf_action_t) action,
449 } else if ((action->generic_action.max_duration != NO_MAX_DURATION)
450 && (action->generic_action.max_duration <= 0)) {
451 action->generic_action.finish = surf_get_clock();
452 surf_network_model->action_state_set((surf_action_t) action,
461 static void net_update_resource_state(void *id,
462 tmgr_trace_event_t event_type,
463 double value, double date)
465 link_CM02_t nw_link = id;
466 /* printf("[" "%lg" "] Asking to update network card \"%s\" with value " */
467 /* "%lg" " for event %p\n", surf_get_clock(), nw_link->name, */
468 /* value, event_type); */
470 if (event_type == nw_link->lmm_resource.power.event) {
472 sg_weight_S_parameter / value - sg_weight_S_parameter /
473 (nw_link->lmm_resource.power.peak *
474 nw_link->lmm_resource.power.scale);
475 lmm_variable_t var = NULL;
476 lmm_element_t elem = NULL;
477 surf_action_network_CM02_t action = NULL;
479 nw_link->lmm_resource.power.peak = value;
480 lmm_update_constraint_bound(network_maxmin_system,
481 nw_link->lmm_resource.constraint,
482 sg_bandwidth_factor *
483 (nw_link->lmm_resource.power.peak *
484 nw_link->lmm_resource.power.scale));
486 TRACE_surf_link_set_bandwidth(date, nw_link->lmm_resource.generic_resource.name,
487 sg_bandwidth_factor *
488 (nw_link->lmm_resource.power.peak *
489 nw_link->lmm_resource.power.scale));
491 if (sg_weight_S_parameter > 0) {
492 while ((var = lmm_get_var_from_cnst
493 (network_maxmin_system, nw_link->lmm_resource.constraint,
495 action = lmm_variable_id(var);
496 action->weight += delta;
497 if (!(action->suspended))
498 lmm_update_variable_weight(network_maxmin_system,
499 action->variable, action->weight);
502 if (tmgr_trace_event_free(event_type))
503 nw_link->lmm_resource.power.event = NULL;
504 } else if (event_type == nw_link->lat_event) {
505 double delta = value - nw_link->lat_current;
506 lmm_variable_t var = NULL;
507 lmm_element_t elem = NULL;
508 surf_action_network_CM02_t action = NULL;
510 nw_link->lat_current = value;
511 while ((var = lmm_get_var_from_cnst
512 (network_maxmin_system, nw_link->lmm_resource.constraint,
514 action = lmm_variable_id(var);
515 action->lat_current += delta;
516 action->weight += delta;
517 if (action->rate < 0)
518 lmm_update_variable_bound(network_maxmin_system, action->variable,
519 sg_tcp_gamma / (2.0 *
520 action->lat_current));
522 lmm_update_variable_bound(network_maxmin_system, action->variable,
524 sg_tcp_gamma / (2.0 *
525 action->lat_current)));
527 if (action->rate < sg_tcp_gamma / (2.0 * action->lat_current)) {
528 XBT_INFO("Flow is limited BYBANDWIDTH");
530 XBT_INFO("Flow is limited BYLATENCY, latency of flow is %f",
531 action->lat_current);
534 if (!(action->suspended))
535 lmm_update_variable_weight(network_maxmin_system, action->variable,
539 if (tmgr_trace_event_free(event_type))
540 nw_link->lat_event = NULL;
541 } else if (event_type == nw_link->lmm_resource.state_event) {
543 nw_link->lmm_resource.state_current = SURF_RESOURCE_ON;
545 lmm_constraint_t cnst = nw_link->lmm_resource.constraint;
546 lmm_variable_t var = NULL;
547 lmm_element_t elem = NULL;
549 nw_link->lmm_resource.state_current = SURF_RESOURCE_OFF;
550 while ((var = lmm_get_var_from_cnst
551 (network_maxmin_system, cnst, &elem))) {
552 surf_action_t action = lmm_variable_id(var);
554 if (surf_action_state_get(action) == SURF_ACTION_RUNNING ||
555 surf_action_state_get(action) == SURF_ACTION_READY) {
556 action->finish = date;
557 surf_network_model->action_state_set(action, SURF_ACTION_FAILED);
561 if (tmgr_trace_event_free(event_type))
562 nw_link->lmm_resource.state_event = NULL;
564 XBT_CRITICAL("Unknown event ! \n");
572 static surf_action_t net_communicate(const char *src_name,
573 const char *dst_name, double size,
579 surf_action_network_CM02_t action = NULL;
580 double bandwidth_bound;
582 /* LARGE PLATFORMS HACK:
583 Add a link_CM02_t *link and a int link_nb to network_card_CM02_t. It will represent local links for this node
584 Use the cluster_id for ->id */
586 xbt_dynar_t back_route = NULL;
587 int constraints_per_variable = 0;
588 xbt_dynar_t route = xbt_dynar_new(sizeof(void*),NULL);
589 // I need to have the forward and backward routes at the same time, so allocate "route". That way, the routing wont clean it up
590 routing_get_route_and_latency(src_name, dst_name, &route, &latency);
592 if (sg_network_fullduplex == 1) {
593 // FIXME: fill route directly
594 routing_get_route_and_latency(dst_name, src_name, &back_route,NULL);
597 /* LARGE PLATFORMS HACK:
598 total_route_size = route_size + src->link_nb + dst->nb */
600 XBT_IN("(%s,%s,%g,%g)", src_name, dst_name, size, rate);
601 /* LARGE PLATFORMS HACK:
602 assert on total_route_size */
603 xbt_assert(!xbt_dynar_is_empty(route) || latency,
604 "You're trying to send data from %s to %s but there is no connection at all between these two hosts.",
607 xbt_dynar_foreach(route, i, link) {
608 if (link->lmm_resource.state_current == SURF_RESOURCE_OFF) {
614 surf_action_new(sizeof(s_surf_action_network_CM02_t), size,
615 surf_network_model, failed);
616 #ifdef HAVE_LATENCY_BOUND_TRACKING
617 (action->generic_action).latency_limited = 0;
619 action->weight = action->latency = latency;
621 xbt_swag_insert(action, action->generic_action.state_set);
624 bandwidth_bound = -1.0;
626 xbt_dynar_foreach(route, i, link) {
628 sg_weight_S_parameter /
629 (link->lmm_resource.power.peak * link->lmm_resource.power.scale);
630 if (bandwidth_bound < 0.0)
632 bandwidth_factor_callback(size) *
633 (link->lmm_resource.power.peak * link->lmm_resource.power.scale);
637 bandwidth_factor_callback(size) *
638 (link->lmm_resource.power.peak *
639 link->lmm_resource.power.scale));
641 /* LARGE PLATFORMS HACK:
642 Add src->link and dst->link latencies */
643 action->lat_current = action->latency;
644 action->latency *= latency_factor_callback(size);
646 bandwidth_constraint_callback(action->rate, bandwidth_bound,
649 if(!xbt_dynar_is_empty(route)) {
650 link = *(link_CM02_t*)xbt_dynar_get_ptr(route, 0);
651 gap_append(size, link, action);
652 XBT_DEBUG("Comm %p: %s -> %s gap=%f (lat=%f)",
653 action, src_name, dst_name, action->sender.gap, action->latency);
659 /* LARGE PLATFORMS HACK:
660 lmm_variable_new(..., total_route_size) */
661 if (back_route != NULL) {
662 constraints_per_variable =
663 xbt_dynar_length(route) + xbt_dynar_length(back_route);
665 constraints_per_variable = xbt_dynar_length(route);
668 if (action->latency > 0)
670 lmm_variable_new(network_maxmin_system, action, 0.0, -1.0,
671 constraints_per_variable);
674 lmm_variable_new(network_maxmin_system, action, 1.0, -1.0,
675 constraints_per_variable);
677 if (action->rate < 0) {
678 if (action->lat_current > 0)
679 lmm_update_variable_bound(network_maxmin_system, action->variable,
680 sg_tcp_gamma / (2.0 *
681 action->lat_current));
683 lmm_update_variable_bound(network_maxmin_system, action->variable,
686 if (action->lat_current > 0)
687 lmm_update_variable_bound(network_maxmin_system, action->variable,
689 sg_tcp_gamma / (2.0 *
690 action->lat_current)));
692 lmm_update_variable_bound(network_maxmin_system, action->variable,
696 xbt_dynar_foreach(route, i, link) {
697 lmm_expand(network_maxmin_system, link->lmm_resource.constraint,
698 action->variable, 1.0);
701 if (sg_network_fullduplex == 1) {
702 XBT_DEBUG("Fullduplex active adding backward flow using 5%c", '%');
703 xbt_dynar_foreach(back_route, i, link) {
704 lmm_expand(network_maxmin_system, link->lmm_resource.constraint,
705 action->variable, .05);
708 /* LARGE PLATFORMS HACK:
709 expand also with src->link and dst->link */
711 if (TRACE_is_enabled()) {
712 action->src_name = xbt_strdup(src_name);
713 action->dst_name = xbt_strdup(dst_name);
715 action->src_name = action->dst_name = NULL;
719 xbt_dynar_free(&route);
722 return (surf_action_t) action;
725 static xbt_dynar_t net_get_route(const char *src, const char *dst)
727 xbt_dynar_t route=NULL;
728 routing_get_route_and_latency(src, dst,&route, NULL);
732 static double net_get_link_bandwidth(const void *link)
734 surf_resource_lmm_t lmm = (surf_resource_lmm_t) link;
735 return lmm->power.peak * lmm->power.scale;
738 static double net_get_link_latency(const void *link)
740 return ((link_CM02_t) link)->lat_current;
743 static int net_link_shared(const void *link)
746 lmm_constraint_is_shared(((surf_resource_lmm_t) link)->constraint);
749 static void net_action_suspend(surf_action_t action)
751 ((surf_action_network_CM02_t) action)->suspended = 1;
752 lmm_update_variable_weight(network_maxmin_system,
753 ((surf_action_network_CM02_t)
754 action)->variable, 0.0);
757 static void net_action_resume(surf_action_t action)
759 if (((surf_action_network_CM02_t) action)->suspended) {
760 lmm_update_variable_weight(network_maxmin_system,
761 ((surf_action_network_CM02_t)
763 ((surf_action_network_CM02_t)
765 ((surf_action_network_CM02_t) action)->suspended = 0;
769 static int net_action_is_suspended(surf_action_t action)
771 return ((surf_action_network_CM02_t) action)->suspended;
774 void net_action_set_max_duration(surf_action_t action, double duration)
776 action->max_duration = duration;
780 static void net_action_set_category(surf_action_t action, const char *category)
782 action->category = xbt_strdup (category);
786 static void net_finalize(void)
788 surf_model_exit(surf_network_model);
789 surf_network_model = NULL;
791 lmm_system_free(network_maxmin_system);
792 network_maxmin_system = NULL;
795 static void surf_network_model_init_internal(void)
797 surf_network_model = surf_model_init();
799 surf_network_model->name = "network";
800 surf_network_model->action_unref = net_action_unref;
801 surf_network_model->action_cancel = net_action_cancel;
802 surf_network_model->action_recycle = net_action_recycle;
803 surf_network_model->get_remains = net_action_get_remains;
804 #ifdef HAVE_LATENCY_BOUND_TRACKING
805 surf_network_model->get_latency_limited = net_get_link_latency_limited;
808 surf_network_model->model_private->resource_used = net_resource_used;
809 surf_network_model->model_private->share_resources = net_share_resources;
810 surf_network_model->model_private->update_actions_state =
811 net_update_actions_state;
812 surf_network_model->model_private->update_resource_state =
813 net_update_resource_state;
814 surf_network_model->model_private->finalize = net_finalize;
816 surf_network_model->suspend = net_action_suspend;
817 surf_network_model->resume = net_action_resume;
818 surf_network_model->is_suspended = net_action_is_suspended;
819 surf_network_model->set_max_duration = net_action_set_max_duration;
821 surf_network_model->set_category = net_action_set_category;
824 surf_network_model->extension.network.communicate = net_communicate;
825 surf_network_model->extension.network.get_route = net_get_route;
826 surf_network_model->extension.network.get_link_bandwidth =
827 net_get_link_bandwidth;
828 surf_network_model->extension.network.get_link_latency =
829 net_get_link_latency;
830 surf_network_model->extension.network.link_shared = net_link_shared;
831 surf_network_model->extension.network.add_traces = net_add_traces;
832 surf_network_model->extension.network.create_resource =
835 if (!network_maxmin_system)
836 network_maxmin_system = lmm_system_new();
838 routing_model_create(sizeof(link_CM02_t),
839 net_create_resource("__loopback__",
842 SURF_RESOURCE_ON, NULL,
843 SURF_LINK_FATPIPE, NULL));
848 /************************************************************************/
849 /* New model based on LV08 and experimental results of MPI ping-pongs */
850 /************************************************************************/
851 void surf_network_model_init_SMPI(void)
854 if (surf_network_model)
856 surf_network_model_init_internal();
857 latency_factor_callback = &smpi_latency_factor;
858 bandwidth_factor_callback = &smpi_bandwidth_factor;
859 bandwidth_constraint_callback = &smpi_bandwidth_constraint;
860 net_define_callbacks();
861 xbt_dynar_push(model_list, &surf_network_model);
862 network_solve = lmm_solve;
864 xbt_cfg_setdefault_double(_surf_cfg_set, "network/sender_gap", 10e-6);
865 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 8775);
869 /************************************************************************/
870 /* New model based on optimizations discussed during this thesis */
871 /************************************************************************/
872 void surf_network_model_init_LegrandVelho(void)
875 if (surf_network_model)
877 surf_network_model_init_internal();
878 net_define_callbacks();
879 xbt_dynar_push(model_list, &surf_network_model);
880 network_solve = lmm_solve;
882 xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor", 10.4);
883 xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
885 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 8775);
889 /***************************************************************************/
890 /* The nice TCP sharing model designed by Loris Marchal and Henri Casanova */
891 /***************************************************************************/
892 /* @TechReport{ rr-lip2002-40, */
893 /* author = {Henri Casanova and Loris Marchal}, */
894 /* institution = {LIP}, */
895 /* title = {A Network Model for Simulation of Grid Application}, */
896 /* number = {2002-40}, */
900 void surf_network_model_init_CM02(void)
903 if (surf_network_model)
905 surf_network_model_init_internal();
906 net_define_callbacks();
907 xbt_dynar_push(model_list, &surf_network_model);
908 network_solve = lmm_solve;
911 void surf_network_model_init_Reno(void)
913 if (surf_network_model)
915 surf_network_model_init_internal();
916 net_define_callbacks();
918 xbt_dynar_push(model_list, &surf_network_model);
919 lmm_set_default_protocol_function(func_reno_f, func_reno_fp,
921 network_solve = lagrange_solve;
923 xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor", 10.4);
924 xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
926 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 8775);
930 void surf_network_model_init_Reno2(void)
932 if (surf_network_model)
934 surf_network_model_init_internal();
935 net_define_callbacks();
937 xbt_dynar_push(model_list, &surf_network_model);
938 lmm_set_default_protocol_function(func_reno2_f, func_reno2_fp,
940 network_solve = lagrange_solve;
942 xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor", 10.4);
943 xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
945 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S_parameter",
949 void surf_network_model_init_Vegas(void)
951 if (surf_network_model)
953 surf_network_model_init_internal();
954 net_define_callbacks();
956 xbt_dynar_push(model_list, &surf_network_model);
957 lmm_set_default_protocol_function(func_vegas_f, func_vegas_fp,
959 network_solve = lagrange_solve;
961 xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor", 10.4);
962 xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
964 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 8775);