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();
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_size(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 net_create_resource(bprintf("%s_UP",link->id), link->bandwidth, link->bandwidth_trace,
205 link->latency, link->latency_trace, link->state, link->state_trace,
206 link->policy, link->properties);
207 net_create_resource(bprintf("%s_DOWN",link->id), link->bandwidth, link->bandwidth_trace,
208 link->latency, link->latency_trace, link->state, link->state_trace,
209 link->policy, NULL); // FIXME: We need to deep copy the properties or we won't be able to free it
213 net_create_resource(xbt_strdup(link->id), link->bandwidth, link->bandwidth_trace,
214 link->latency, link->latency_trace, link->state, link->state_trace,
215 link->policy, link->properties);
220 static void net_add_traces(void)
222 xbt_dict_cursor_t cursor = NULL;
223 char *trace_name, *elm;
225 static int called = 0;
230 /* connect all traces relative to network */
231 xbt_dict_foreach(trace_connect_list_link_avail, cursor, trace_name, elm) {
232 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
234 xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL);
236 xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
239 "Cannot connect trace %s to link %s: trace undefined",
242 link->lmm_resource.state_event =
243 tmgr_history_add_trace(history, trace, 0.0, 0, link);
246 xbt_dict_foreach(trace_connect_list_bandwidth, cursor, trace_name, elm) {
247 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
249 xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL);
251 xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
254 "Cannot connect trace %s to link %s: trace undefined",
257 link->lmm_resource.power.event =
258 tmgr_history_add_trace(history, trace, 0.0, 0, link);
261 xbt_dict_foreach(trace_connect_list_latency, cursor, trace_name, elm) {
262 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
264 xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL);
266 xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
269 "Cannot connect trace %s to link %s: trace undefined",
272 link->lat_event = tmgr_history_add_trace(history, trace, 0.0, 0, link);
276 static void net_define_callbacks(void)
278 /* Figuring out the network links */
279 sg_platf_link_add_cb(net_parse_link_init);
280 sg_platf_postparse_add_cb(net_add_traces);
283 static int net_resource_used(void *resource_id)
285 return lmm_constraint_used(network_maxmin_system,
286 ((surf_resource_lmm_t)
287 resource_id)->constraint);
290 static int net_action_unref(surf_action_t action)
293 if (!action->refcount) {
294 xbt_swag_remove(action, action->state_set);
295 if (((surf_action_network_CM02_t) action)->variable)
296 lmm_variable_free(network_maxmin_system,
297 ((surf_action_network_CM02_t) action)->variable);
299 xbt_free(((surf_action_network_CM02_t) action)->src_name);
300 xbt_free(((surf_action_network_CM02_t) action)->dst_name);
301 if (action->category)
302 xbt_free(action->category);
304 surf_action_free(&action);
310 static void net_action_cancel(surf_action_t action)
312 surf_network_model->action_state_set(action, SURF_ACTION_FAILED);
315 void net_action_recycle(surf_action_t action)
320 #ifdef HAVE_LATENCY_BOUND_TRACKING
321 int net_get_link_latency_limited(surf_action_t action)
323 return action->latency_limited;
327 double net_action_get_remains(surf_action_t action)
329 return action->remains;
332 static double net_share_resources(double now)
334 s_surf_action_network_CM02_t s_action;
335 surf_action_network_CM02_t action = NULL;
336 xbt_swag_t running_actions =
337 surf_network_model->states.running_action_set;
340 min = generic_maxmin_share_resources(running_actions,
341 xbt_swag_offset(s_action,
343 network_maxmin_system,
346 #define VARIABLE(action) (*((lmm_variable_t*)(((char *) (action)) + xbt_swag_offset(s_action, variable) )))
348 xbt_swag_foreach(action, running_actions) {
349 #ifdef HAVE_LATENCY_BOUND_TRACKING
350 if (lmm_is_variable_limited_by_latency(action->variable)) {
351 (action->generic_action).latency_limited = 1;
353 (action->generic_action).latency_limited = 0;
356 if (action->latency > 0) {
358 min = action->latency;
359 else if (action->latency < min)
360 min = action->latency;
364 XBT_DEBUG("Min of share resources %f", min);
369 static void net_update_actions_state(double now, double delta)
372 surf_action_network_CM02_t action = NULL;
373 surf_action_network_CM02_t next_action = NULL;
374 xbt_swag_t running_actions =
375 surf_network_model->states.running_action_set;
377 xbt_swag_t failed_actions =
378 surf_network_model->states.failed_action_set;
381 xbt_swag_foreach_safe(action, next_action, running_actions) {
383 if (action->latency > 0) {
384 if (action->latency > deltap) {
385 double_update(&(action->latency), deltap);
388 double_update(&(deltap), action->latency);
389 action->latency = 0.0;
391 if ((action->latency == 0.0) && !(action->suspended))
392 lmm_update_variable_weight(network_maxmin_system, action->variable,
396 if (TRACE_is_enabled()) {
397 xbt_dynar_t route = global_routing->get_route(action->src_name,
401 xbt_dynar_foreach(route, i, link) {
402 TRACE_surf_link_set_utilization(link->lmm_resource.generic_resource.name,
403 action->generic_action.data,
404 (surf_action_t) action,
405 lmm_variable_getvalue
406 (action->variable), now - delta,
411 if(!lmm_get_number_of_cnst_from_var(network_maxmin_system, action->variable)) {
412 /* There is actually no link used, hence an infinite bandwidth.
413 * This happens often when using models like vivaldi.
414 * In such case, just make sure that the action completes immediately.
416 double_update(&(action->generic_action.remains),
417 action->generic_action.remains);
419 double_update(&(action->generic_action.remains),
420 lmm_variable_getvalue(action->variable) * deltap);
421 if (action->generic_action.max_duration != NO_MAX_DURATION)
422 double_update(&(action->generic_action.max_duration), delta);
424 if ((action->generic_action.remains <= 0) &&
425 (lmm_get_variable_weight(action->variable) > 0)) {
426 action->generic_action.finish = surf_get_clock();
427 surf_network_model->action_state_set((surf_action_t) action,
430 } else if ((action->generic_action.max_duration != NO_MAX_DURATION)
431 && (action->generic_action.max_duration <= 0)) {
432 action->generic_action.finish = surf_get_clock();
433 surf_network_model->action_state_set((surf_action_t) action,
442 static void net_update_resource_state(void *id,
443 tmgr_trace_event_t event_type,
444 double value, double date)
446 link_CM02_t nw_link = id;
447 /* printf("[" "%lg" "] Asking to update network card \"%s\" with value " */
448 /* "%lg" " for event %p\n", surf_get_clock(), nw_link->name, */
449 /* value, event_type); */
451 if (event_type == nw_link->lmm_resource.power.event) {
453 sg_weight_S_parameter / value - sg_weight_S_parameter /
454 (nw_link->lmm_resource.power.peak *
455 nw_link->lmm_resource.power.scale);
456 lmm_variable_t var = NULL;
457 lmm_element_t elem = NULL;
458 surf_action_network_CM02_t action = NULL;
460 nw_link->lmm_resource.power.peak = value;
461 lmm_update_constraint_bound(network_maxmin_system,
462 nw_link->lmm_resource.constraint,
463 sg_bandwidth_factor *
464 (nw_link->lmm_resource.power.peak *
465 nw_link->lmm_resource.power.scale));
467 TRACE_surf_link_set_bandwidth(date, nw_link->lmm_resource.generic_resource.name,
468 sg_bandwidth_factor *
469 (nw_link->lmm_resource.power.peak *
470 nw_link->lmm_resource.power.scale));
472 if (sg_weight_S_parameter > 0) {
473 while ((var = lmm_get_var_from_cnst
474 (network_maxmin_system, nw_link->lmm_resource.constraint,
476 action = lmm_variable_id(var);
477 action->weight += delta;
478 if (!(action->suspended))
479 lmm_update_variable_weight(network_maxmin_system,
480 action->variable, action->weight);
483 if (tmgr_trace_event_free(event_type))
484 nw_link->lmm_resource.power.event = NULL;
485 } else if (event_type == nw_link->lat_event) {
486 double delta = value - nw_link->lat_current;
487 lmm_variable_t var = NULL;
488 lmm_element_t elem = NULL;
489 surf_action_network_CM02_t action = NULL;
491 nw_link->lat_current = value;
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->lat_current += delta;
497 action->weight += delta;
498 if (action->rate < 0)
499 lmm_update_variable_bound(network_maxmin_system, action->variable,
500 sg_tcp_gamma / (2.0 *
501 action->lat_current));
503 lmm_update_variable_bound(network_maxmin_system, action->variable,
505 sg_tcp_gamma / (2.0 *
506 action->lat_current)));
508 if (action->rate < sg_tcp_gamma / (2.0 * action->lat_current)) {
509 XBT_INFO("Flow is limited BYBANDWIDTH");
511 XBT_INFO("Flow is limited BYLATENCY, latency of flow is %f",
512 action->lat_current);
515 if (!(action->suspended))
516 lmm_update_variable_weight(network_maxmin_system, action->variable,
520 if (tmgr_trace_event_free(event_type))
521 nw_link->lat_event = NULL;
522 } else if (event_type == nw_link->lmm_resource.state_event) {
524 nw_link->lmm_resource.state_current = SURF_RESOURCE_ON;
526 lmm_constraint_t cnst = nw_link->lmm_resource.constraint;
527 lmm_variable_t var = NULL;
528 lmm_element_t elem = NULL;
530 nw_link->lmm_resource.state_current = SURF_RESOURCE_OFF;
531 while ((var = lmm_get_var_from_cnst
532 (network_maxmin_system, cnst, &elem))) {
533 surf_action_t action = lmm_variable_id(var);
535 if (surf_action_state_get(action) == SURF_ACTION_RUNNING ||
536 surf_action_state_get(action) == SURF_ACTION_READY) {
537 action->finish = date;
538 surf_network_model->action_state_set(action, SURF_ACTION_FAILED);
542 if (tmgr_trace_event_free(event_type))
543 nw_link->lmm_resource.state_event = NULL;
545 XBT_CRITICAL("Unknown event ! \n");
553 static surf_action_t net_communicate(const char *src_name,
554 const char *dst_name, double size,
560 surf_action_network_CM02_t action = NULL;
561 double bandwidth_bound;
563 /* LARGE PLATFORMS HACK:
564 Add a link_CM02_t *link and a int link_nb to network_card_CM02_t. It will represent local links for this node
565 Use the cluster_id for ->id */
567 xbt_dynar_t back_route = NULL;
568 int constraints_per_variable = 0;
570 // I will need this route for some time so require for no cleanup
571 global_routing->get_route_latency(src_name, dst_name, &route, &latency, 0);
573 if (sg_network_fullduplex == 1) {
574 back_route = global_routing->get_route(dst_name, src_name);
577 /* LARGE PLATFORMS HACK:
578 total_route_size = route_size + src->link_nb + dst->nb */
580 XBT_IN("(%s,%s,%g,%g)", src_name, dst_name, size, rate);
581 /* LARGE PLATFORMS HACK:
582 assert on total_route_size */
583 xbt_assert(xbt_dynar_length(route) || latency,
584 "You're trying to send data from %s to %s but there is no connection at all between these two hosts.",
587 xbt_dynar_foreach(route, i, link) {
588 if (link->lmm_resource.state_current == SURF_RESOURCE_OFF) {
594 surf_action_new(sizeof(s_surf_action_network_CM02_t), size,
595 surf_network_model, failed);
596 #ifdef HAVE_LATENCY_BOUND_TRACKING
597 (action->generic_action).latency_limited = 0;
599 action->weight = action->latency = latency;
601 xbt_swag_insert(action, action->generic_action.state_set);
604 bandwidth_bound = -1.0;
606 xbt_dynar_foreach(route, i, link) {
608 sg_weight_S_parameter /
609 (link->lmm_resource.power.peak * link->lmm_resource.power.scale);
610 if (bandwidth_bound < 0.0)
612 (*bandwidth_factor_callback) (size) *
613 (link->lmm_resource.power.peak * link->lmm_resource.power.scale);
617 (*bandwidth_factor_callback) (size) *
618 (link->lmm_resource.power.peak *
619 link->lmm_resource.power.scale));
621 /* LARGE PLATFORMS HACK:
622 Add src->link and dst->link latencies */
623 action->lat_current = action->latency;
624 action->latency *= (*latency_factor_callback) (size);
626 (*bandwidth_constraint_callback) (action->rate, bandwidth_bound,
629 if(xbt_dynar_length(route) > 0) {
630 link = *(link_CM02_t*)xbt_dynar_get_ptr(route, 0);
631 gap_append(size, link, action);
632 XBT_DEBUG("Comm %p: %s -> %s gap=%f (lat=%f)",
633 action, src_name, dst_name, action->sender.gap, action->latency);
639 /* LARGE PLATFORMS HACK:
640 lmm_variable_new(..., total_route_size) */
641 if (back_route != NULL) {
642 constraints_per_variable =
643 xbt_dynar_length(route) + xbt_dynar_length(back_route);
645 constraints_per_variable = xbt_dynar_length(route);
648 if (action->latency > 0)
650 lmm_variable_new(network_maxmin_system, action, 0.0, -1.0,
651 constraints_per_variable);
654 lmm_variable_new(network_maxmin_system, action, 1.0, -1.0,
655 constraints_per_variable);
657 if (action->rate < 0) {
658 if (action->lat_current > 0)
659 lmm_update_variable_bound(network_maxmin_system, action->variable,
660 sg_tcp_gamma / (2.0 *
661 action->lat_current));
663 lmm_update_variable_bound(network_maxmin_system, action->variable,
666 if (action->lat_current > 0)
667 lmm_update_variable_bound(network_maxmin_system, action->variable,
669 sg_tcp_gamma / (2.0 *
670 action->lat_current)));
672 lmm_update_variable_bound(network_maxmin_system, action->variable,
676 xbt_dynar_foreach(route, i, link) {
677 lmm_expand(network_maxmin_system, link->lmm_resource.constraint,
678 action->variable, 1.0);
681 if (sg_network_fullduplex == 1) {
682 XBT_DEBUG("Fullduplex active adding backward flow using 5%c", '%');
683 xbt_dynar_foreach(back_route, i, link) {
684 lmm_expand(network_maxmin_system, link->lmm_resource.constraint,
685 action->variable, .05);
688 /* LARGE PLATFORMS HACK:
689 expand also with src->link and dst->link */
691 if (TRACE_is_enabled()) {
692 action->src_name = xbt_strdup(src_name);
693 action->dst_name = xbt_strdup(dst_name);
695 action->src_name = action->dst_name = NULL;
699 xbt_dynar_free(&route);
702 return (surf_action_t) action;
705 static xbt_dynar_t net_get_route(const char *src, const char *dst)
707 return global_routing->get_route(src, dst);
710 static double net_get_link_bandwidth(const void *link)
712 surf_resource_lmm_t lmm = (surf_resource_lmm_t) link;
713 return lmm->power.peak * lmm->power.scale;
716 static double net_get_link_latency(const void *link)
718 return ((link_CM02_t) link)->lat_current;
721 static int net_link_shared(const void *link)
724 lmm_constraint_is_shared(((surf_resource_lmm_t) link)->constraint);
727 static void net_action_suspend(surf_action_t action)
729 ((surf_action_network_CM02_t) action)->suspended = 1;
730 lmm_update_variable_weight(network_maxmin_system,
731 ((surf_action_network_CM02_t)
732 action)->variable, 0.0);
735 static void net_action_resume(surf_action_t action)
737 if (((surf_action_network_CM02_t) action)->suspended) {
738 lmm_update_variable_weight(network_maxmin_system,
739 ((surf_action_network_CM02_t)
741 ((surf_action_network_CM02_t)
743 ((surf_action_network_CM02_t) action)->suspended = 0;
747 static int net_action_is_suspended(surf_action_t action)
749 return ((surf_action_network_CM02_t) action)->suspended;
752 void net_action_set_max_duration(surf_action_t action, double duration)
754 action->max_duration = duration;
758 static void net_action_set_category(surf_action_t action, const char *category)
760 action->category = xbt_strdup (category);
764 static void net_finalize(void)
766 surf_model_exit(surf_network_model);
767 surf_network_model = NULL;
769 global_routing->finalize();
771 lmm_system_free(network_maxmin_system);
772 network_maxmin_system = NULL;
775 static void surf_network_model_init_internal(void)
777 surf_network_model = surf_model_init();
779 surf_network_model->name = "network";
780 surf_network_model->action_unref = net_action_unref;
781 surf_network_model->action_cancel = net_action_cancel;
782 surf_network_model->action_recycle = net_action_recycle;
783 surf_network_model->get_remains = net_action_get_remains;
784 #ifdef HAVE_LATENCY_BOUND_TRACKING
785 surf_network_model->get_latency_limited = net_get_link_latency_limited;
788 surf_network_model->model_private->resource_used = net_resource_used;
789 surf_network_model->model_private->share_resources = net_share_resources;
790 surf_network_model->model_private->update_actions_state =
791 net_update_actions_state;
792 surf_network_model->model_private->update_resource_state =
793 net_update_resource_state;
794 surf_network_model->model_private->finalize = net_finalize;
796 surf_network_model->suspend = net_action_suspend;
797 surf_network_model->resume = net_action_resume;
798 surf_network_model->is_suspended = net_action_is_suspended;
799 surf_network_model->set_max_duration = net_action_set_max_duration;
801 surf_network_model->set_category = net_action_set_category;
804 surf_network_model->extension.network.communicate = net_communicate;
805 surf_network_model->extension.network.get_route = net_get_route;
806 surf_network_model->extension.network.get_link_bandwidth =
807 net_get_link_bandwidth;
808 surf_network_model->extension.network.get_link_latency =
809 net_get_link_latency;
810 surf_network_model->extension.network.link_shared = net_link_shared;
811 surf_network_model->extension.network.add_traces = net_add_traces;
812 surf_network_model->extension.network.create_resource =
815 if (!network_maxmin_system)
816 network_maxmin_system = lmm_system_new();
818 routing_model_create(sizeof(link_CM02_t),
819 net_create_resource(xbt_strdup("__loopback__"),
820 498000000, NULL, 0.000015, NULL,
821 SURF_RESOURCE_ON, NULL,
822 SURF_LINK_FATPIPE, NULL),
823 net_get_link_latency);
828 /************************************************************************/
829 /* New model based on LV08 and experimental results of MPI ping-pongs */
830 /************************************************************************/
831 void surf_network_model_init_SMPI(void)
834 if (surf_network_model)
836 surf_network_model_init_internal();
837 latency_factor_callback = &smpi_latency_factor;
838 bandwidth_factor_callback = &smpi_bandwidth_factor;
839 bandwidth_constraint_callback = &smpi_bandwidth_constraint;
840 net_define_callbacks();
841 xbt_dynar_push(model_list, &surf_network_model);
842 network_solve = lmm_solve;
844 xbt_cfg_setdefault_double(_surf_cfg_set, "network/sender_gap", 10e-6);
845 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 8775);
847 update_model_description(surf_network_model_description,
848 "SMPI", surf_network_model);
851 /************************************************************************/
852 /* New model based on optimizations discussed during this thesis */
853 /************************************************************************/
854 void surf_network_model_init_LegrandVelho(void)
857 if (surf_network_model)
859 surf_network_model_init_internal();
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/latency_factor", 10.4);
865 xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
867 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 8775);
869 update_model_description(surf_network_model_description,
870 "LV08_fullupdate", surf_network_model);
873 /***************************************************************************/
874 /* The nice TCP sharing model designed by Loris Marchal and Henri Casanova */
875 /***************************************************************************/
876 /* @TechReport{ rr-lip2002-40, */
877 /* author = {Henri Casanova and Loris Marchal}, */
878 /* institution = {LIP}, */
879 /* title = {A Network Model for Simulation of Grid Application}, */
880 /* number = {2002-40}, */
884 void surf_network_model_init_CM02(void)
887 if (surf_network_model)
889 surf_network_model_init_internal();
890 net_define_callbacks();
891 xbt_dynar_push(model_list, &surf_network_model);
892 network_solve = lmm_solve;
894 update_model_description(surf_network_model_description,
895 "CM02", surf_network_model);
898 void surf_network_model_init_Reno(void)
900 if (surf_network_model)
902 surf_network_model_init_internal();
903 net_define_callbacks();
905 xbt_dynar_push(model_list, &surf_network_model);
906 lmm_set_default_protocol_function(func_reno_f, func_reno_fp,
908 network_solve = lagrange_solve;
910 xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor", 10.4);
911 xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
913 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 8775);
915 update_model_description(surf_network_model_description,
916 "Reno", surf_network_model);
920 void surf_network_model_init_Reno2(void)
922 if (surf_network_model)
924 surf_network_model_init_internal();
925 net_define_callbacks();
927 xbt_dynar_push(model_list, &surf_network_model);
928 lmm_set_default_protocol_function(func_reno2_f, func_reno2_fp,
930 network_solve = lagrange_solve;
932 xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor", 10.4);
933 xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
935 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S_parameter",
938 update_model_description(surf_network_model_description,
939 "Reno2", surf_network_model);
942 void surf_network_model_init_Vegas(void)
944 if (surf_network_model)
946 surf_network_model_init_internal();
947 net_define_callbacks();
949 xbt_dynar_push(model_list, &surf_network_model);
950 lmm_set_default_protocol_function(func_vegas_f, func_vegas_fp,
952 network_solve = lagrange_solve;
954 xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor", 10.4);
955 xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
957 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 8775);
959 update_model_description(surf_network_model_description,
960 "Vegas", surf_network_model);