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 #include "surf/surfxml_parse_values.h"
13 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_network, surf,
14 "Logging specific to the SURF network module");
16 surf_model_t surf_network_model = NULL;
17 static lmm_system_t network_maxmin_system = NULL;
18 static void (*network_solve) (lmm_system_t) = NULL;
20 double sg_sender_gap = 0.0;
21 double sg_latency_factor = 1.0; /* default value; can be set by model or from command line */
22 double sg_bandwidth_factor = 1.0; /* default value; can be set by model or from command line */
23 double sg_weight_S_parameter = 0.0; /* default value; can be set by model or from command line */
25 double sg_tcp_gamma = 0.0;
26 int sg_network_fullduplex = 0;
28 xbt_dict_t gap_lookup = NULL;
30 static double net_get_link_bandwidth(const void *link);
32 static void gap_append(double size, const link_CM02_t link, surf_action_network_CM02_t action) {
33 const char* src = link->lmm_resource.generic_resource.name;
35 surf_action_network_CM02_t last_action;
38 if(sg_sender_gap > 0.0) {
40 gap_lookup = xbt_dict_new();
42 fifo = (xbt_fifo_t)xbt_dict_get_or_null(gap_lookup, src);
43 action->sender.gap = 0.0;
44 if(fifo && xbt_fifo_size(fifo) > 0) {
45 /* Compute gap from last send */
46 last_action = (surf_action_network_CM02_t)xbt_fifo_get_item_content(xbt_fifo_get_last_item(fifo));
47 bw = net_get_link_bandwidth(link);
48 action->sender.gap = last_action->sender.gap + max(sg_sender_gap, last_action->sender.size / bw);
49 action->latency += action->sender.gap;
51 /* Append action as last send */
52 action->sender.link_name = link->lmm_resource.generic_resource.name;
53 fifo = (xbt_fifo_t)xbt_dict_get_or_null(gap_lookup, action->sender.link_name);
55 fifo = xbt_fifo_new();
56 xbt_dict_set(gap_lookup, action->sender.link_name, fifo, NULL);
58 action->sender.fifo_item = xbt_fifo_push(fifo, action);
59 action->sender.size = size;
63 static void gap_unknown(surf_action_network_CM02_t action) {
64 action->sender.gap = 0.0;
65 action->sender.link_name = NULL;
66 action->sender.fifo_item = NULL;
67 action->sender.size = 0.0;
70 static void gap_remove(surf_action_network_CM02_t action) {
74 if(sg_sender_gap > 0.0 && action->sender.link_name && action->sender.fifo_item) {
75 fifo = (xbt_fifo_t)xbt_dict_get_or_null(gap_lookup, action->sender.link_name);
76 xbt_fifo_remove_item(fifo, action->sender.fifo_item);
77 size = xbt_fifo_size(fifo);
80 xbt_dict_remove(gap_lookup, action->sender.link_name);
81 size = xbt_dict_size(gap_lookup);
83 xbt_dict_free(&gap_lookup);
89 /******************************************************************************/
90 /* Factors callbacks */
91 /******************************************************************************/
92 static double constant_latency_factor(double size)
94 return sg_latency_factor;
97 static double constant_bandwidth_factor(double size)
99 return sg_bandwidth_factor;
102 static double constant_bandwidth_constraint(double rate, double bound,
108 /**********************/
110 /**********************/
111 static double smpi_latency_factor(double size)
113 /* 1 B <= size <= 1 KiB */
114 if (size <= 1024.0) {
118 /* 2 KiB <= size <= 32 KiB */
119 if (size <= 32768.0) {
123 /* 64 KiB <= size <= 4 MiB */
127 static double smpi_bandwidth_factor(double size)
129 /* 1 B <= size <= 1 KiB */
130 if (size <= 1024.0) {
134 /* 2 KiB <= size <= 32 KiB */
135 if (size <= 32768.0) {
139 /* 64 KiB <= size <= 4 MiB */
143 static double smpi_bandwidth_constraint(double rate, double bound,
146 return rate < 0 ? bound : min(bound, rate * smpi_bandwidth_factor(size));
150 static double (*latency_factor_callback) (double) =
151 &constant_latency_factor;
152 static double (*bandwidth_factor_callback) (double) =
153 &constant_bandwidth_factor;
154 static double (*bandwidth_constraint_callback) (double, double, double) =
155 &constant_bandwidth_constraint;
158 static void* net_create_resource(char *name,
160 tmgr_trace_t bw_trace,
162 tmgr_trace_t lat_trace,
163 e_surf_resource_state_t
165 tmgr_trace_t state_trace,
166 e_surf_link_sharing_policy_t
167 policy, xbt_dict_t properties)
169 link_CM02_t nw_link = (link_CM02_t)
170 surf_resource_lmm_new(sizeof(s_link_CM02_t),
171 surf_network_model, name, properties,
172 network_maxmin_system,
173 sg_bandwidth_factor * bw_initial,
175 state_initial, state_trace,
176 bw_initial, bw_trace);
178 xbt_assert(!xbt_lib_get_or_null(link_lib, name, SURF_LINK_LEVEL),
179 "Link '%s' declared several times in the platform file.",
182 nw_link->lat_current = lat_initial;
185 tmgr_history_add_trace(history, lat_trace, 0.0, 0, nw_link);
187 if (policy == SURF_LINK_FATPIPE)
188 lmm_constraint_shared(nw_link->lmm_resource.constraint);
190 xbt_lib_set(link_lib, name, SURF_LINK_LEVEL, nw_link);
195 static void net_parse_link_init(void)
197 XBT_DEBUG("link_CM02");
199 if(struct_lnk->V_policy_initial_link == SURF_LINK_FULLDUPLEX)
201 net_create_resource(bprintf("%s_UP",struct_lnk->V_link_id), struct_lnk->V_link_bandwidth, struct_lnk->V_link_bandwidth_file,
202 struct_lnk->V_link_latency, struct_lnk->V_link_latency_file, struct_lnk->V_link_state, struct_lnk->V_link_state_file,
203 struct_lnk->V_policy_initial_link, xbt_dict_new());
204 net_create_resource(bprintf("%s_DOWN",struct_lnk->V_link_id), struct_lnk->V_link_bandwidth, struct_lnk->V_link_bandwidth_file,
205 struct_lnk->V_link_latency, struct_lnk->V_link_latency_file, struct_lnk->V_link_state, struct_lnk->V_link_state_file,
206 struct_lnk->V_policy_initial_link, xbt_dict_new());
210 net_create_resource(xbt_strdup(struct_lnk->V_link_id), struct_lnk->V_link_bandwidth, struct_lnk->V_link_bandwidth_file,
211 struct_lnk->V_link_latency, struct_lnk->V_link_latency_file, struct_lnk->V_link_state, struct_lnk->V_link_state_file,
212 struct_lnk->V_policy_initial_link, xbt_dict_new());
217 static void net_add_traces(void)
219 xbt_dict_cursor_t cursor = NULL;
220 char *trace_name, *elm;
222 static int called = 0;
227 /* connect all traces relative to network */
228 xbt_dict_foreach(trace_connect_list_link_avail, cursor, trace_name, elm) {
229 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
231 xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL);
233 xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
236 "Cannot connect trace %s to link %s: trace undefined",
239 link->lmm_resource.state_event =
240 tmgr_history_add_trace(history, trace, 0.0, 0, link);
243 xbt_dict_foreach(trace_connect_list_bandwidth, cursor, trace_name, elm) {
244 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
246 xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL);
248 xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
251 "Cannot connect trace %s to link %s: trace undefined",
254 link->lmm_resource.power.event =
255 tmgr_history_add_trace(history, trace, 0.0, 0, link);
258 xbt_dict_foreach(trace_connect_list_latency, cursor, trace_name, elm) {
259 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
261 xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL);
263 xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
266 "Cannot connect trace %s to link %s: trace undefined",
269 link->lat_event = tmgr_history_add_trace(history, trace, 0.0, 0, link);
273 static void net_define_callbacks(void)
275 /* Figuring out the network links */
276 surfxml_add_callback(STag_surfxml_link_cb_list, &net_parse_link_init);
277 surfxml_add_callback(ETag_surfxml_platform_cb_list, &net_add_traces);
280 static int net_resource_used(void *resource_id)
282 return lmm_constraint_used(network_maxmin_system,
283 ((surf_resource_lmm_t)
284 resource_id)->constraint);
287 static int net_action_unref(surf_action_t action)
290 if (!action->refcount) {
291 xbt_swag_remove(action, action->state_set);
292 if (((surf_action_network_CM02_t) action)->variable)
293 lmm_variable_free(network_maxmin_system,
294 ((surf_action_network_CM02_t) action)->variable);
296 xbt_free(((surf_action_network_CM02_t) action)->src_name);
297 xbt_free(((surf_action_network_CM02_t) action)->dst_name);
298 if (action->category)
299 xbt_free(action->category);
301 surf_action_free(&action);
307 static void net_action_cancel(surf_action_t action)
309 surf_network_model->action_state_set(action, SURF_ACTION_FAILED);
312 void net_action_recycle(surf_action_t action)
317 #ifdef HAVE_LATENCY_BOUND_TRACKING
318 int net_get_link_latency_limited(surf_action_t action)
320 return action->latency_limited;
324 double net_action_get_remains(surf_action_t action)
326 return action->remains;
329 static double net_share_resources(double now)
331 s_surf_action_network_CM02_t s_action;
332 surf_action_network_CM02_t action = NULL;
333 xbt_swag_t running_actions =
334 surf_network_model->states.running_action_set;
337 min = generic_maxmin_share_resources(running_actions,
338 xbt_swag_offset(s_action,
340 network_maxmin_system,
343 #define VARIABLE(action) (*((lmm_variable_t*)(((char *) (action)) + xbt_swag_offset(s_action, variable) )))
345 xbt_swag_foreach(action, running_actions) {
346 #ifdef HAVE_LATENCY_BOUND_TRACKING
347 if (lmm_is_variable_limited_by_latency(action->variable)) {
348 (action->generic_action).latency_limited = 1;
350 (action->generic_action).latency_limited = 0;
353 if (action->latency > 0) {
355 min = action->latency;
356 else if (action->latency < min)
357 min = action->latency;
361 XBT_DEBUG("Min of share resources %f", min);
366 static void net_update_actions_state(double now, double delta)
369 surf_action_network_CM02_t action = NULL;
370 surf_action_network_CM02_t next_action = NULL;
371 xbt_swag_t running_actions =
372 surf_network_model->states.running_action_set;
374 xbt_swag_t failed_actions =
375 surf_network_model->states.failed_action_set;
378 xbt_swag_foreach_safe(action, next_action, running_actions) {
380 if (action->latency > 0) {
381 if (action->latency > deltap) {
382 double_update(&(action->latency), deltap);
385 double_update(&(deltap), action->latency);
386 action->latency = 0.0;
388 if ((action->latency == 0.0) && !(action->suspended))
389 lmm_update_variable_weight(network_maxmin_system, action->variable,
393 if (TRACE_is_enabled()) {
394 xbt_dynar_t route = global_routing->get_route(action->src_name,
398 xbt_dynar_foreach(route, i, link) {
399 TRACE_surf_link_set_utilization(link->lmm_resource.generic_resource.name,
400 action->generic_action.data,
401 (surf_action_t) action,
402 lmm_variable_getvalue
403 (action->variable), now - delta,
408 if(!lmm_get_number_of_cnst_from_var(network_maxmin_system, action->variable)) {
409 /* There is actually no link used, hence an infinite bandwidth.
410 * This happens often when using models like vivaldi.
411 * In such case, just make sure that the action completes immediately.
413 double_update(&(action->generic_action.remains),
414 action->generic_action.remains);
416 double_update(&(action->generic_action.remains),
417 lmm_variable_getvalue(action->variable) * deltap);
418 if (action->generic_action.max_duration != NO_MAX_DURATION)
419 double_update(&(action->generic_action.max_duration), delta);
421 if ((action->generic_action.remains <= 0) &&
422 (lmm_get_variable_weight(action->variable) > 0)) {
423 action->generic_action.finish = surf_get_clock();
424 surf_network_model->action_state_set((surf_action_t) action,
427 } else if ((action->generic_action.max_duration != NO_MAX_DURATION)
428 && (action->generic_action.max_duration <= 0)) {
429 action->generic_action.finish = surf_get_clock();
430 surf_network_model->action_state_set((surf_action_t) action,
439 static void net_update_resource_state(void *id,
440 tmgr_trace_event_t event_type,
441 double value, double date)
443 link_CM02_t nw_link = id;
444 /* printf("[" "%lg" "] Asking to update network card \"%s\" with value " */
445 /* "%lg" " for event %p\n", surf_get_clock(), nw_link->name, */
446 /* value, event_type); */
448 if (event_type == nw_link->lmm_resource.power.event) {
450 sg_weight_S_parameter / value - sg_weight_S_parameter /
451 (nw_link->lmm_resource.power.peak *
452 nw_link->lmm_resource.power.scale);
453 lmm_variable_t var = NULL;
454 lmm_element_t elem = NULL;
455 surf_action_network_CM02_t action = NULL;
457 nw_link->lmm_resource.power.peak = value;
458 lmm_update_constraint_bound(network_maxmin_system,
459 nw_link->lmm_resource.constraint,
460 sg_bandwidth_factor *
461 (nw_link->lmm_resource.power.peak *
462 nw_link->lmm_resource.power.scale));
464 TRACE_surf_link_set_bandwidth(date, nw_link->lmm_resource.generic_resource.name,
465 sg_bandwidth_factor *
466 (nw_link->lmm_resource.power.peak *
467 nw_link->lmm_resource.power.scale));
469 if (sg_weight_S_parameter > 0) {
470 while ((var = lmm_get_var_from_cnst
471 (network_maxmin_system, nw_link->lmm_resource.constraint,
473 action = lmm_variable_id(var);
474 action->weight += delta;
475 if (!(action->suspended))
476 lmm_update_variable_weight(network_maxmin_system,
477 action->variable, action->weight);
480 if (tmgr_trace_event_free(event_type))
481 nw_link->lmm_resource.power.event = NULL;
482 } else if (event_type == nw_link->lat_event) {
483 double delta = value - nw_link->lat_current;
484 lmm_variable_t var = NULL;
485 lmm_element_t elem = NULL;
486 surf_action_network_CM02_t action = NULL;
488 nw_link->lat_current = value;
489 while ((var = lmm_get_var_from_cnst
490 (network_maxmin_system, nw_link->lmm_resource.constraint,
492 action = lmm_variable_id(var);
493 action->lat_current += delta;
494 action->weight += delta;
495 if (action->rate < 0)
496 lmm_update_variable_bound(network_maxmin_system, action->variable,
497 sg_tcp_gamma / (2.0 *
498 action->lat_current));
500 lmm_update_variable_bound(network_maxmin_system, action->variable,
502 sg_tcp_gamma / (2.0 *
503 action->lat_current)));
505 if (action->rate < sg_tcp_gamma / (2.0 * action->lat_current)) {
506 XBT_INFO("Flow is limited BYBANDWIDTH");
508 XBT_INFO("Flow is limited BYLATENCY, latency of flow is %f",
509 action->lat_current);
512 if (!(action->suspended))
513 lmm_update_variable_weight(network_maxmin_system, action->variable,
517 if (tmgr_trace_event_free(event_type))
518 nw_link->lat_event = NULL;
519 } else if (event_type == nw_link->lmm_resource.state_event) {
521 nw_link->lmm_resource.state_current = SURF_RESOURCE_ON;
523 lmm_constraint_t cnst = nw_link->lmm_resource.constraint;
524 lmm_variable_t var = NULL;
525 lmm_element_t elem = NULL;
527 nw_link->lmm_resource.state_current = SURF_RESOURCE_OFF;
528 while ((var = lmm_get_var_from_cnst
529 (network_maxmin_system, cnst, &elem))) {
530 surf_action_t action = lmm_variable_id(var);
532 if (surf_action_state_get(action) == SURF_ACTION_RUNNING ||
533 surf_action_state_get(action) == SURF_ACTION_READY) {
534 action->finish = date;
535 surf_network_model->action_state_set(action, SURF_ACTION_FAILED);
539 if (tmgr_trace_event_free(event_type))
540 nw_link->lmm_resource.state_event = NULL;
542 XBT_CRITICAL("Unknown event ! \n");
550 static surf_action_t net_communicate(const char *src_name,
551 const char *dst_name, double size,
557 surf_action_network_CM02_t action = NULL;
558 double bandwidth_bound;
560 /* LARGE PLATFORMS HACK:
561 Add a link_CM02_t *link and a int link_nb to network_card_CM02_t. It will represent local links for this node
562 Use the cluster_id for ->id */
564 xbt_dynar_t back_route = NULL;
565 int constraints_per_variable = 0;
567 // I will need this route for some time so require for no cleanup
568 global_routing->get_route_latency(src_name, dst_name, &route, &latency, 0);
570 if (sg_network_fullduplex == 1) {
571 back_route = global_routing->get_route(dst_name, src_name);
574 /* LARGE PLATFORMS HACK:
575 total_route_size = route_size + src->link_nb + dst->nb */
577 XBT_IN("(%s,%s,%g,%g)", src_name, dst_name, size, rate);
578 /* LARGE PLATFORMS HACK:
579 assert on total_route_size */
580 xbt_assert(xbt_dynar_length(route) || latency,
581 "You're trying to send data from %s to %s but there is no connection at all between these two hosts.",
584 xbt_dynar_foreach(route, i, link) {
585 if (link->lmm_resource.state_current == SURF_RESOURCE_OFF) {
591 surf_action_new(sizeof(s_surf_action_network_CM02_t), size,
592 surf_network_model, failed);
593 #ifdef HAVE_LATENCY_BOUND_TRACKING
594 (action->generic_action).latency_limited = 0;
596 action->weight = action->latency = latency;
598 xbt_swag_insert(action, action->generic_action.state_set);
601 bandwidth_bound = -1.0;
603 xbt_dynar_foreach(route, i, link) {
605 sg_weight_S_parameter /
606 (link->lmm_resource.power.peak * link->lmm_resource.power.scale);
607 if (bandwidth_bound < 0.0)
609 (*bandwidth_factor_callback) (size) *
610 (link->lmm_resource.power.peak * link->lmm_resource.power.scale);
614 (*bandwidth_factor_callback) (size) *
615 (link->lmm_resource.power.peak *
616 link->lmm_resource.power.scale));
618 /* LARGE PLATFORMS HACK:
619 Add src->link and dst->link latencies */
620 action->lat_current = action->latency;
621 action->latency *= (*latency_factor_callback) (size);
623 (*bandwidth_constraint_callback) (action->rate, bandwidth_bound,
626 if(xbt_dynar_length(route) > 0) {
627 link = *(link_CM02_t*)xbt_dynar_get_ptr(route, 0);
628 gap_append(size, link, action);
629 XBT_DEBUG("Comm %p: %s -> %s gap=%f (lat=%f)",
630 action, src_name, dst_name, action->sender.gap, action->latency);
636 /* LARGE PLATFORMS HACK:
637 lmm_variable_new(..., total_route_size) */
638 if (back_route != NULL) {
639 constraints_per_variable =
640 xbt_dynar_length(route) + xbt_dynar_length(back_route);
642 constraints_per_variable = xbt_dynar_length(route);
645 if (action->latency > 0)
647 lmm_variable_new(network_maxmin_system, action, 0.0, -1.0,
648 constraints_per_variable);
651 lmm_variable_new(network_maxmin_system, action, 1.0, -1.0,
652 constraints_per_variable);
654 if (action->rate < 0) {
655 if (action->lat_current > 0)
656 lmm_update_variable_bound(network_maxmin_system, action->variable,
657 sg_tcp_gamma / (2.0 *
658 action->lat_current));
660 lmm_update_variable_bound(network_maxmin_system, action->variable,
663 if (action->lat_current > 0)
664 lmm_update_variable_bound(network_maxmin_system, action->variable,
666 sg_tcp_gamma / (2.0 *
667 action->lat_current)));
669 lmm_update_variable_bound(network_maxmin_system, action->variable,
673 xbt_dynar_foreach(route, i, link) {
674 lmm_expand(network_maxmin_system, link->lmm_resource.constraint,
675 action->variable, 1.0);
678 if (sg_network_fullduplex == 1) {
679 XBT_DEBUG("Fullduplex active adding backward flow using 5%c", '%');
680 xbt_dynar_foreach(back_route, i, link) {
681 lmm_expand(network_maxmin_system, link->lmm_resource.constraint,
682 action->variable, .05);
685 /* LARGE PLATFORMS HACK:
686 expand also with src->link and dst->link */
688 if (TRACE_is_enabled()) {
689 action->src_name = xbt_strdup(src_name);
690 action->dst_name = xbt_strdup(dst_name);
692 action->src_name = action->dst_name = NULL;
696 xbt_dynar_free(&route);
699 return (surf_action_t) action;
702 static xbt_dynar_t net_get_route(const char *src, const char *dst)
704 return global_routing->get_route(src, dst);
707 static double net_get_link_bandwidth(const void *link)
709 surf_resource_lmm_t lmm = (surf_resource_lmm_t) link;
710 return lmm->power.peak * lmm->power.scale;
713 static double net_get_link_latency(const void *link)
715 return ((link_CM02_t) link)->lat_current;
718 static int net_link_shared(const void *link)
721 lmm_constraint_is_shared(((surf_resource_lmm_t) link)->constraint);
724 static void net_action_suspend(surf_action_t action)
726 ((surf_action_network_CM02_t) action)->suspended = 1;
727 lmm_update_variable_weight(network_maxmin_system,
728 ((surf_action_network_CM02_t)
729 action)->variable, 0.0);
732 static void net_action_resume(surf_action_t action)
734 if (((surf_action_network_CM02_t) action)->suspended) {
735 lmm_update_variable_weight(network_maxmin_system,
736 ((surf_action_network_CM02_t)
738 ((surf_action_network_CM02_t)
740 ((surf_action_network_CM02_t) action)->suspended = 0;
744 static int net_action_is_suspended(surf_action_t action)
746 return ((surf_action_network_CM02_t) action)->suspended;
749 void net_action_set_max_duration(surf_action_t action, double duration)
751 action->max_duration = duration;
755 static void net_action_set_category(surf_action_t action, const char *category)
757 action->category = xbt_strdup (category);
761 static void net_finalize(void)
763 surf_model_exit(surf_network_model);
764 surf_network_model = NULL;
766 global_routing->finalize();
768 lmm_system_free(network_maxmin_system);
769 network_maxmin_system = NULL;
772 static void surf_network_model_init_internal(void)
774 surf_network_model = surf_model_init();
776 surf_network_model->name = "network";
777 surf_network_model->action_unref = net_action_unref;
778 surf_network_model->action_cancel = net_action_cancel;
779 surf_network_model->action_recycle = net_action_recycle;
780 surf_network_model->get_remains = net_action_get_remains;
781 #ifdef HAVE_LATENCY_BOUND_TRACKING
782 surf_network_model->get_latency_limited = net_get_link_latency_limited;
785 surf_network_model->model_private->resource_used = net_resource_used;
786 surf_network_model->model_private->share_resources = net_share_resources;
787 surf_network_model->model_private->update_actions_state =
788 net_update_actions_state;
789 surf_network_model->model_private->update_resource_state =
790 net_update_resource_state;
791 surf_network_model->model_private->finalize = net_finalize;
793 surf_network_model->suspend = net_action_suspend;
794 surf_network_model->resume = net_action_resume;
795 surf_network_model->is_suspended = net_action_is_suspended;
796 surf_network_model->set_max_duration = net_action_set_max_duration;
798 surf_network_model->set_category = net_action_set_category;
801 surf_network_model->extension.network.communicate = net_communicate;
802 surf_network_model->extension.network.get_route = net_get_route;
803 surf_network_model->extension.network.get_link_bandwidth =
804 net_get_link_bandwidth;
805 surf_network_model->extension.network.get_link_latency =
806 net_get_link_latency;
807 surf_network_model->extension.network.link_shared = net_link_shared;
808 surf_network_model->extension.network.add_traces = net_add_traces;
809 surf_network_model->extension.network.create_resource =
812 if (!network_maxmin_system)
813 network_maxmin_system = lmm_system_new();
815 routing_model_create(sizeof(link_CM02_t),
816 net_create_resource(xbt_strdup("__loopback__"),
817 498000000, NULL, 0.000015, NULL,
818 SURF_RESOURCE_ON, NULL,
819 SURF_LINK_FATPIPE, NULL),
820 net_get_link_latency);
825 /************************************************************************/
826 /* New model based on LV08 and experimental results of MPI ping-pongs */
827 /************************************************************************/
828 void surf_network_model_init_SMPI(void)
831 if (surf_network_model)
833 surf_network_model_init_internal();
834 latency_factor_callback = &smpi_latency_factor;
835 bandwidth_factor_callback = &smpi_bandwidth_factor;
836 bandwidth_constraint_callback = &smpi_bandwidth_constraint;
837 net_define_callbacks();
838 xbt_dynar_push(model_list, &surf_network_model);
839 network_solve = lmm_solve;
841 xbt_cfg_setdefault_double(_surf_cfg_set, "network/sender_gap", 10e-6);
842 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 8775);
844 update_model_description(surf_network_model_description,
845 "SMPI", surf_network_model);
848 /************************************************************************/
849 /* New model based on optimizations discussed during this thesis */
850 /************************************************************************/
851 void surf_network_model_init_LegrandVelho(void)
854 if (surf_network_model)
856 surf_network_model_init_internal();
857 net_define_callbacks();
858 xbt_dynar_push(model_list, &surf_network_model);
859 network_solve = lmm_solve;
861 xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor", 10.4);
862 xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
864 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 8775);
866 update_model_description(surf_network_model_description,
867 "LV08_fullupdate", surf_network_model);
870 /***************************************************************************/
871 /* The nice TCP sharing model designed by Loris Marchal and Henri Casanova */
872 /***************************************************************************/
873 /* @TechReport{ rr-lip2002-40, */
874 /* author = {Henri Casanova and Loris Marchal}, */
875 /* institution = {LIP}, */
876 /* title = {A Network Model for Simulation of Grid Application}, */
877 /* number = {2002-40}, */
881 void surf_network_model_init_CM02(void)
884 if (surf_network_model)
886 surf_network_model_init_internal();
887 net_define_callbacks();
888 xbt_dynar_push(model_list, &surf_network_model);
889 network_solve = lmm_solve;
891 update_model_description(surf_network_model_description,
892 "CM02", surf_network_model);
895 void surf_network_model_init_Reno(void)
897 if (surf_network_model)
899 surf_network_model_init_internal();
900 net_define_callbacks();
902 xbt_dynar_push(model_list, &surf_network_model);
903 lmm_set_default_protocol_function(func_reno_f, func_reno_fp,
905 network_solve = lagrange_solve;
907 xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor", 10.4);
908 xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
910 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 8775);
912 update_model_description(surf_network_model_description,
913 "Reno", surf_network_model);
917 void surf_network_model_init_Reno2(void)
919 if (surf_network_model)
921 surf_network_model_init_internal();
922 net_define_callbacks();
924 xbt_dynar_push(model_list, &surf_network_model);
925 lmm_set_default_protocol_function(func_reno2_f, func_reno2_fp,
927 network_solve = lagrange_solve;
929 xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor", 10.4);
930 xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
932 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S_parameter",
935 update_model_description(surf_network_model_description,
936 "Reno2", surf_network_model);
939 void surf_network_model_init_Vegas(void)
941 if (surf_network_model)
943 surf_network_model_init_internal();
944 net_define_callbacks();
946 xbt_dynar_push(model_list, &surf_network_model);
947 lmm_set_default_protocol_function(func_vegas_f, func_vegas_fp,
949 network_solve = lagrange_solve;
951 xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor", 10.4);
952 xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
954 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 8775);
956 update_model_description(surf_network_model_description,
957 "Vegas", surf_network_model);