3 * Network with improved management of tasks, IM (Improved Management).
4 * Uses a heap to store actions so that the share_resources is faster.
5 * This model automatically sets the selective update flag to 1 and is
6 * highly dependent on the maxmin lmm module.
9 /* Copyright (c) 2009, 2010, 2011. The SimGrid Team.
10 * All rights reserved. */
12 /* This program is free software; you can redistribute it and/or modify it
13 * under the terms of the license (GNU LGPL) which comes with this package. */
15 #include "network_private.h"
19 #include "surf_private.h"
21 #include "maxmin_private.h"
22 #include "surf/surfxml_parse_values.h"
23 #include "surf/surf_resource.h"
24 #include "surf/surf_resource_lmm.h"
25 #include "simgrid/sg_config.h"
27 #undef GENERIC_LMM_ACTION
29 #define GENERIC_LMM_ACTION(action) (action)->generic_lmm_action
30 #define GENERIC_ACTION(action) GENERIC_LMM_ACTION(action).generic_action
33 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_network, surf,
34 "Logging specific to the SURF network module");
36 surf_model_t surf_network_model = NULL;
37 static void (*network_solve) (lmm_system_t) = NULL;
39 xbt_dynar_t smpi_bw_factor = NULL;
40 xbt_dynar_t smpi_lat_factor = NULL;
42 typedef struct s_smpi_factor *smpi_factor_t;
43 typedef struct s_smpi_factor {
49 double sg_sender_gap = 0.0;
50 double sg_latency_factor = 1.0; /* default value; can be set by model or from command line */
51 double sg_bandwidth_factor = 1.0; /* default value; can be set by model or from command line */
52 double sg_weight_S_parameter = 0.0; /* default value; can be set by model or from command line */
54 double sg_tcp_gamma = 0.0;
55 int sg_network_crosstraffic = 0;
57 xbt_dict_t gap_lookup = NULL;
59 /******************************************************************************/
60 /* Factors callbacks */
61 /******************************************************************************/
62 static double constant_latency_factor(double size)
64 return sg_latency_factor;
67 static double constant_bandwidth_factor(double size)
69 return sg_bandwidth_factor;
72 static double constant_bandwidth_constraint(double rate, double bound,
78 /**********************/
80 /**********************/
82 static int factor_cmp(const void *pa, const void *pb)
84 return (((s_smpi_factor_t*)pa)->factor > ((s_smpi_factor_t*)pb)->factor);
88 static xbt_dynar_t parse_factor(const char *smpi_coef_string)
91 unsigned int iter = 0;
93 xbt_dynar_t smpi_factor, radical_elements, radical_elements2 = NULL;
95 smpi_factor = xbt_dynar_new(sizeof(s_smpi_factor_t), NULL);
96 radical_elements = xbt_str_split(smpi_coef_string, ";");
97 xbt_dynar_foreach(radical_elements, iter, value) {
99 radical_elements2 = xbt_str_split(value, ":");
100 if (xbt_dynar_length(radical_elements2) != 2)
101 xbt_die("Malformed radical for smpi factor!");
102 fact.factor = atol(xbt_dynar_get_as(radical_elements2, 0, char *));
103 fact.value = atof(xbt_dynar_get_as(radical_elements2, 1, char *));
104 xbt_dynar_push_as(smpi_factor, s_smpi_factor_t, fact);
105 XBT_DEBUG("smpi_factor:\t%ld : %f", fact.factor, fact.value);
106 xbt_dynar_free(&radical_elements2);
108 xbt_dynar_free(&radical_elements);
110 xbt_dynar_sort(smpi_factor, &factor_cmp);
111 xbt_dynar_foreach(smpi_factor, iter, fact) {
112 XBT_DEBUG("ordered smpi_factor:\t%ld : %f", fact.factor, fact.value);
118 static double smpi_bandwidth_factor(double size)
122 parse_factor(sg_cfg_get_string("smpi/bw_factor"));
124 unsigned int iter = 0;
125 s_smpi_factor_t fact;
127 xbt_dynar_foreach(smpi_bw_factor, iter, fact) {
128 if (size <= fact.factor) {
129 XBT_DEBUG("%lf <= %ld return %f", size, fact.factor, current);
134 XBT_DEBUG("%lf > %ld return %f", size, fact.factor, current);
139 static double smpi_latency_factor(double size)
141 if (!smpi_lat_factor)
143 parse_factor(sg_cfg_get_string("smpi/lat_factor"));
145 unsigned int iter = 0;
146 s_smpi_factor_t fact;
148 xbt_dynar_foreach(smpi_lat_factor, iter, fact) {
149 if (size <= fact.factor) {
150 XBT_DEBUG("%lf <= %ld return %f", size, fact.factor, current);
155 XBT_DEBUG("%lf > %ld return %f", size, fact.factor, current);
160 /**--------- <copy/paste C code snippet in surf/network.c> -----------*/
162 static double smpi_bandwidth_constraint(double rate, double bound,
165 return rate < 0 ? bound : min(bound, rate * smpi_bandwidth_factor(size));
168 static double (*latency_factor_callback) (double) =
169 &constant_latency_factor;
170 static double (*bandwidth_factor_callback) (double) =
171 &constant_bandwidth_factor;
172 static double (*bandwidth_constraint_callback) (double, double, double) =
173 &constant_bandwidth_constraint;
175 static void (*gap_append) (double, const link_CM02_t,
176 surf_action_network_CM02_t) = NULL;
178 static void *net_create_resource(const char *name,
180 tmgr_trace_t bw_trace,
182 tmgr_trace_t lat_trace,
183 e_surf_resource_state_t
185 tmgr_trace_t state_trace,
186 e_surf_link_sharing_policy_t
187 policy, xbt_dict_t properties)
189 link_CM02_t nw_link = (link_CM02_t)
190 surf_resource_lmm_new(sizeof(s_link_CM02_t),
191 surf_network_model, name, properties,
192 surf_network_model->model_private->maxmin_system,
193 sg_bandwidth_factor * bw_initial,
195 state_initial, state_trace,
196 bw_initial, bw_trace);
198 xbt_assert(!xbt_lib_get_or_null(link_lib, name, SURF_LINK_LEVEL),
199 "Link '%s' declared several times in the platform file.",
202 nw_link->lat_current = lat_initial;
205 tmgr_history_add_trace(history, lat_trace, 0.0, 0, nw_link);
207 if (policy == SURF_LINK_FATPIPE)
208 lmm_constraint_shared(nw_link->lmm_resource.constraint);
210 xbt_lib_set(link_lib, name, SURF_LINK_LEVEL, nw_link);
211 XBT_DEBUG("Create link '%s'",name);
216 static void net_parse_link_init(sg_platf_link_cbarg_t link)
218 if (link->policy == SURF_LINK_FULLDUPLEX) {
220 link_id = bprintf("%s_UP", link->id);
221 net_create_resource(link_id,
223 link->bandwidth_trace,
227 link->state_trace, link->policy, link->properties);
229 link_id = bprintf("%s_DOWN", link->id);
230 net_create_resource(link_id,
232 link->bandwidth_trace,
236 link->state_trace, link->policy, link->properties);
239 net_create_resource(link->id,
241 link->bandwidth_trace,
245 link->state_trace, link->policy, link->properties);
249 static void net_add_traces(void)
251 xbt_dict_cursor_t cursor = NULL;
252 char *trace_name, *elm;
254 static int called = 0;
259 /* connect all traces relative to network */
260 xbt_dict_foreach(trace_connect_list_link_avail, cursor, trace_name, elm) {
261 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
262 link_CM02_t link = xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL);
264 xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
267 "Cannot connect trace %s to link %s: trace undefined",
270 link->lmm_resource.state_event =
271 tmgr_history_add_trace(history, trace, 0.0, 0, link);
274 xbt_dict_foreach(trace_connect_list_bandwidth, cursor, trace_name, elm) {
275 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
276 link_CM02_t link = xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL);
278 xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
281 "Cannot connect trace %s to link %s: trace undefined",
284 link->lmm_resource.power.event =
285 tmgr_history_add_trace(history, trace, 0.0, 0, link);
288 xbt_dict_foreach(trace_connect_list_latency, cursor, trace_name, elm) {
289 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
290 link_CM02_t link = xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL);
292 xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
295 "Cannot connect trace %s to link %s: trace undefined",
298 link->lat_event = tmgr_history_add_trace(history, trace, 0.0, 0, link);
302 static void net_define_callbacks(void)
304 /* Figuring out the network links */
305 sg_platf_link_add_cb(net_parse_link_init);
306 sg_platf_postparse_add_cb(net_add_traces);
309 static int net_resource_used(void *resource_id)
311 return lmm_constraint_used(surf_network_model->model_private->maxmin_system, ((surf_resource_lmm_t)
316 void net_action_recycle(surf_action_t action)
321 #ifdef HAVE_LATENCY_BOUND_TRACKING
322 int net_get_link_latency_limited(surf_action_t action)
324 return action->latency_limited;
328 static double net_share_resources_full(double now)
330 s_surf_action_lmm_t s_action;
331 surf_action_network_CM02_t action = NULL;
332 xbt_swag_t running_actions =
333 surf_network_model->states.running_action_set;
336 min = generic_maxmin_share_resources(running_actions,
337 xbt_swag_offset(s_action,
339 surf_network_model->model_private->maxmin_system,
342 #define VARIABLE(action) (*((lmm_variable_t*)(((char *) (action)) + xbt_swag_offset(s_action, variable) )))
344 xbt_swag_foreach(action, running_actions) {
345 #ifdef HAVE_LATENCY_BOUND_TRACKING
346 if (lmm_is_variable_limited_by_latency(GENERIC_LMM_ACTION(action).variable)) {
347 action->latency_limited = 1;
349 action->latency_limited = 0;
352 if (action->latency > 0) {
353 min = (min < 0) ? action->latency : min(min, action->latency);
357 XBT_DEBUG("Min of share resources %f", min);
362 static double net_share_resources_lazy(double now)
364 return generic_share_resources_lazy(now, surf_network_model);
367 static void net_update_actions_state_full(double now, double delta)
369 generic_update_actions_state_full(now, delta, surf_network_model);
372 static void net_update_actions_state_lazy(double now, double delta)
374 generic_update_actions_state_lazy(now, delta, surf_network_model);
377 static void net_update_resource_state(void *id,
378 tmgr_trace_event_t event_type,
379 double value, double date)
381 link_CM02_t nw_link = id;
382 /* printf("[" "%lg" "] Asking to update network card \"%s\" with value " */
383 /* "%lg" " for event %p\n", surf_get_clock(), nw_link->name, */
384 /* value, event_type); */
386 if (event_type == nw_link->lmm_resource.power.event) {
388 sg_weight_S_parameter / value - sg_weight_S_parameter /
389 (nw_link->lmm_resource.power.peak *
390 nw_link->lmm_resource.power.scale);
391 lmm_variable_t var = NULL;
392 lmm_element_t elem = NULL;
393 surf_action_network_CM02_t action = NULL;
395 nw_link->lmm_resource.power.peak = value;
396 lmm_update_constraint_bound(surf_network_model->model_private->maxmin_system,
397 nw_link->lmm_resource.constraint,
398 sg_bandwidth_factor *
399 (nw_link->lmm_resource.power.peak *
400 nw_link->lmm_resource.power.scale));
402 TRACE_surf_link_set_bandwidth(date,
404 *) (((nw_link->lmm_resource).
405 generic_resource).name),
406 sg_bandwidth_factor *
407 (nw_link->lmm_resource.power.peak *
408 nw_link->lmm_resource.power.scale));
410 if (sg_weight_S_parameter > 0) {
411 while ((var = lmm_get_var_from_cnst
412 (surf_network_model->model_private->maxmin_system, nw_link->lmm_resource.constraint,
414 action = lmm_variable_id(var);
415 action->weight += delta;
416 if (!(GENERIC_LMM_ACTION(action).suspended))
417 lmm_update_variable_weight(surf_network_model->model_private->maxmin_system,
418 GENERIC_LMM_ACTION(action).variable, action->weight);
421 if (tmgr_trace_event_free(event_type))
422 nw_link->lmm_resource.power.event = NULL;
423 } else if (event_type == nw_link->lat_event) {
424 double delta = value - nw_link->lat_current;
425 lmm_variable_t var = NULL;
426 lmm_element_t elem = NULL;
427 surf_action_network_CM02_t action = NULL;
429 nw_link->lat_current = value;
430 while ((var = lmm_get_var_from_cnst
431 (surf_network_model->model_private->maxmin_system, nw_link->lmm_resource.constraint,
433 action = lmm_variable_id(var);
434 action->lat_current += delta;
435 action->weight += delta;
436 if (action->rate < 0)
437 lmm_update_variable_bound(surf_network_model->model_private->maxmin_system, GENERIC_LMM_ACTION(action).variable,
438 sg_tcp_gamma / (2.0 *
439 action->lat_current));
441 lmm_update_variable_bound(surf_network_model->model_private->maxmin_system, GENERIC_LMM_ACTION(action).variable,
443 sg_tcp_gamma / (2.0 *
447 if (action->rate < sg_tcp_gamma / (2.0 * action->lat_current)) {
448 XBT_INFO("Flow is limited BYBANDWIDTH");
450 XBT_INFO("Flow is limited BYLATENCY, latency of flow is %f",
451 action->lat_current);
454 if (!(GENERIC_LMM_ACTION(action).suspended))
455 lmm_update_variable_weight(surf_network_model->model_private->maxmin_system, GENERIC_LMM_ACTION(action).variable,
459 if (tmgr_trace_event_free(event_type))
460 nw_link->lat_event = NULL;
461 } else if (event_type == nw_link->lmm_resource.state_event) {
463 nw_link->lmm_resource.state_current = SURF_RESOURCE_ON;
465 lmm_constraint_t cnst = nw_link->lmm_resource.constraint;
466 lmm_variable_t var = NULL;
467 lmm_element_t elem = NULL;
469 nw_link->lmm_resource.state_current = SURF_RESOURCE_OFF;
470 while ((var = lmm_get_var_from_cnst
471 (surf_network_model->model_private->maxmin_system, cnst, &elem))) {
472 surf_action_t action = lmm_variable_id(var);
474 if (surf_action_state_get(action) == SURF_ACTION_RUNNING ||
475 surf_action_state_get(action) == SURF_ACTION_READY) {
476 action->finish = date;
477 surf_network_model->action_state_set(action, SURF_ACTION_FAILED);
481 if (tmgr_trace_event_free(event_type))
482 nw_link->lmm_resource.state_event = NULL;
484 XBT_CRITICAL("Unknown event ! \n");
489 ("There were a resource state event, need to update actions related to the constraint (%p)",
490 nw_link->lmm_resource.constraint);
495 static surf_action_t net_communicate(sg_routing_edge_t src,
496 sg_routing_edge_t dst,
497 double size, double rate)
502 surf_action_network_CM02_t action = NULL;
503 double bandwidth_bound;
504 double latency = 0.0;
505 xbt_dynar_t back_route = NULL;
506 int constraints_per_variable = 0;
508 xbt_dynar_t route = xbt_dynar_new(sizeof(sg_routing_link_t), NULL);
510 XBT_IN("(%s,%s,%g,%g)", src->name, dst->name, size, rate);
512 routing_get_route_and_latency(src, dst, &route, &latency);
513 xbt_assert(!xbt_dynar_is_empty(route) || latency,
514 "You're trying to send data from %s to %s but there is no connection at all between these two hosts.",
515 src->name, dst->name);
517 xbt_dynar_foreach(route, i, link) {
518 if (link->lmm_resource.state_current == SURF_RESOURCE_OFF) {
523 if (sg_network_crosstraffic == 1) {
524 routing_get_route_and_latency(dst, src, &back_route, NULL);
525 xbt_dynar_foreach(back_route, i, link) {
526 if (link->lmm_resource.state_current == SURF_RESOURCE_OFF) {
534 surf_action_new(sizeof(s_surf_action_network_CM02_t), size,
535 surf_network_model, failed);
536 #ifdef HAVE_LATENCY_BOUND_TRACKING
537 action->latency_limited = 0;
539 action->weight = action->latency = latency;
541 xbt_swag_insert(action, ((surf_action_t)action)->state_set);
543 if (surf_network_model->model_private->update_mechanism == UM_LAZY) {
544 GENERIC_LMM_ACTION(action).index_heap = -1;
545 GENERIC_LMM_ACTION(action).last_update = surf_get_clock();
548 bandwidth_bound = -1.0;
549 if (sg_weight_S_parameter > 0) {
550 xbt_dynar_foreach(route, i, link) {
552 sg_weight_S_parameter /
553 (link->lmm_resource.power.peak * link->lmm_resource.power.scale);
556 xbt_dynar_foreach(route, i, link) {
557 double bb = bandwidth_factor_callback(size) *
558 (link->lmm_resource.power.peak * link->lmm_resource.power.scale);
560 (bandwidth_bound < 0.0) ? bb : min(bandwidth_bound, bb);
563 action->lat_current = action->latency;
564 action->latency *= latency_factor_callback(size);
566 bandwidth_constraint_callback(action->rate, bandwidth_bound, size);
568 xbt_assert(!xbt_dynar_is_empty(route),
569 "Using a model with a gap (e.g., SMPI) with a platform without links (e.g. vivaldi)!!!");
571 link = *(link_CM02_t *) xbt_dynar_get_ptr(route, 0);
572 gap_append(size, link, action);
573 XBT_DEBUG("Comm %p: %s -> %s gap=%f (lat=%f)",
574 action, src->name, dst->name, action->sender.gap,
578 constraints_per_variable = xbt_dynar_length(route);
579 if (back_route != NULL)
580 constraints_per_variable += xbt_dynar_length(back_route);
582 if (action->latency > 0) {
583 GENERIC_LMM_ACTION(action).variable =
584 lmm_variable_new(surf_network_model->model_private->maxmin_system, action, 0.0, -1.0,
585 constraints_per_variable);
586 if (surf_network_model->model_private->update_mechanism == UM_LAZY) {
587 // add to the heap the event when the latency is payed
588 XBT_DEBUG("Added action (%p) one latency event at date %f", action,
589 action->latency + GENERIC_LMM_ACTION(action).last_update);
590 surf_action_lmm_heap_insert(surf_network_model->model_private->action_heap,(surf_action_lmm_t)action, action->latency + GENERIC_LMM_ACTION(action).last_update,
591 xbt_dynar_is_empty(route) ? NORMAL : LATENCY);
594 GENERIC_LMM_ACTION(action).variable =
595 lmm_variable_new(surf_network_model->model_private->maxmin_system, action, 1.0, -1.0,
596 constraints_per_variable);
598 if (action->rate < 0) {
599 lmm_update_variable_bound(surf_network_model->model_private->maxmin_system, GENERIC_LMM_ACTION(action).variable,
600 (action->lat_current > 0) ?
601 sg_tcp_gamma / (2.0 *
602 action->lat_current) : -1.0);
604 lmm_update_variable_bound(surf_network_model->model_private->maxmin_system, GENERIC_LMM_ACTION(action).variable,
605 (action->lat_current > 0) ?
607 sg_tcp_gamma / (2.0 *
608 action->lat_current))
612 xbt_dynar_foreach(route, i, link) {
613 lmm_expand(surf_network_model->model_private->maxmin_system, link->lmm_resource.constraint,
614 GENERIC_LMM_ACTION(action).variable, 1.0);
617 if (sg_network_crosstraffic == 1) {
618 XBT_DEBUG("Fullduplex active adding backward flow using 5%%");
619 xbt_dynar_foreach(back_route, i, link) {
620 lmm_expand(surf_network_model->model_private->maxmin_system, link->lmm_resource.constraint,
621 GENERIC_LMM_ACTION(action).variable, .05);
625 xbt_dynar_free(&route);
628 return (surf_action_t) action;
631 static xbt_dynar_t net_get_route(void *src, void *dst)
633 xbt_dynar_t route = NULL;
634 routing_get_route_and_latency(src, dst, &route, NULL);
638 static double net_get_link_bandwidth(const void *link)
640 surf_resource_lmm_t lmm = (surf_resource_lmm_t) link;
641 return lmm->power.peak * lmm->power.scale;
644 static double net_get_link_latency(const void *link)
646 return ((link_CM02_t) link)->lat_current;
649 static int net_link_shared(const void *link)
652 lmm_constraint_is_shared(((surf_resource_lmm_t) link)->constraint);
655 static void net_finalize(void)
657 lmm_system_free(surf_network_model->model_private->maxmin_system);
658 surf_network_model->model_private->maxmin_system = NULL;
660 if (surf_network_model->model_private->update_mechanism == UM_LAZY) {
661 xbt_heap_free(surf_network_model->model_private->action_heap);
662 xbt_swag_free(surf_network_model->model_private->modified_set);
665 surf_model_exit(surf_network_model);
666 surf_network_model = NULL;
669 xbt_dynar_free(&smpi_bw_factor);
671 xbt_dynar_free(&smpi_lat_factor);
674 static void smpi_gap_append(double size, const link_CM02_t link,
675 surf_action_network_CM02_t action)
677 const char *src = link->lmm_resource.generic_resource.name;
679 //surf_action_network_CM02_t last_action;
682 if (sg_sender_gap > 0.0) {
684 gap_lookup = xbt_dict_new();
686 fifo = (xbt_fifo_t) xbt_dict_get_or_null(gap_lookup, src);
687 action->sender.gap = 0.0;
688 if (fifo && xbt_fifo_size(fifo) > 0) {
689 /* Compute gap from last send */
691 (surf_action_network_CM02_t)
692 xbt_fifo_get_item_content(xbt_fifo_get_last_item(fifo));*/
693 // bw = net_get_link_bandwidth(link);
694 action->sender.gap = sg_sender_gap;
695 /* max(sg_sender_gap,last_action->sender.size / bw);*/
696 action->latency += action->sender.gap;
698 /* Append action as last send */
699 /*action->sender.link_name = link->lmm_resource.generic_resource.name;
701 (xbt_fifo_t) xbt_dict_get_or_null(gap_lookup,
702 action->sender.link_name);
704 fifo = xbt_fifo_new();
705 xbt_dict_set(gap_lookup, action->sender.link_name, fifo, NULL);
707 action->sender.fifo_item = xbt_fifo_push(fifo, action);*/
708 action->sender.size = size;
712 static void smpi_gap_remove(surf_action_lmm_t lmm_action)
716 surf_action_network_CM02_t action = (surf_action_network_CM02_t)(lmm_action);
718 if (sg_sender_gap > 0.0 && action->sender.link_name
719 && action->sender.fifo_item) {
721 (xbt_fifo_t) xbt_dict_get_or_null(gap_lookup,
722 action->sender.link_name);
723 xbt_fifo_remove_item(fifo, action->sender.fifo_item);
724 size = xbt_fifo_size(fifo);
727 xbt_dict_remove(gap_lookup, action->sender.link_name);
728 size = xbt_dict_length(gap_lookup);
730 xbt_dict_free(&gap_lookup);
736 static void set_update_mechanism(void)
738 char *optim = xbt_cfg_get_string(_sg_cfg_set, "network/optim");
740 xbt_cfg_get_int(_sg_cfg_set, "network/maxmin_selective_update");
742 if (!strcmp(optim, "Full")) {
743 surf_network_model->model_private->update_mechanism = UM_FULL;
744 surf_network_model->model_private->selective_update = select;
745 } else if (!strcmp(optim, "Lazy")) {
746 surf_network_model->model_private->update_mechanism = UM_LAZY;
747 surf_network_model->model_private->selective_update = 1;
748 xbt_assert((select == 1)
750 (xbt_cfg_is_default_value
751 (_sg_cfg_set, "network/maxmin_selective_update")),
752 "Disabling selective update while using the lazy update mechanism is dumb!");
754 xbt_die("Unsupported optimization (%s) for this model", optim);
758 static void surf_network_model_init_internal(void)
760 s_surf_action_network_CM02_t comm;
761 surf_network_model = surf_model_init();
763 set_update_mechanism();
765 surf_network_model->name = "network";
766 surf_network_model->action_unref = surf_action_unref;
767 surf_network_model->action_cancel = surf_action_cancel;
768 surf_network_model->action_recycle = net_action_recycle;
770 surf_network_model->get_remains = surf_action_get_remains;
772 #ifdef HAVE_LATENCY_BOUND_TRACKING
773 surf_network_model->get_latency_limited = net_get_link_latency_limited;
776 surf_network_model->set_category = surf_action_set_category;
779 surf_network_model->model_private->resource_used = net_resource_used;
780 if (surf_network_model->model_private->update_mechanism == UM_LAZY) {
781 surf_network_model->model_private->share_resources =
782 net_share_resources_lazy;
783 surf_network_model->model_private->update_actions_state =
784 net_update_actions_state_lazy;
785 } else if (surf_network_model->model_private->update_mechanism == UM_FULL) {
786 surf_network_model->model_private->share_resources =
787 net_share_resources_full;
788 surf_network_model->model_private->update_actions_state =
789 net_update_actions_state_full;
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 = surf_action_suspend;
797 surf_network_model->resume = surf_action_resume;
798 surf_network_model->is_suspended = surf_action_is_suspended;
799 surf_cpu_model->set_max_duration = surf_action_set_max_duration;
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;
810 if (!surf_network_model->model_private->maxmin_system)
811 surf_network_model->model_private->maxmin_system = lmm_system_new(surf_network_model->model_private->selective_update);
813 routing_model_create(net_create_resource("__loopback__",
814 498000000, NULL, 0.000015, NULL,
815 SURF_RESOURCE_ON, NULL,
816 SURF_LINK_FATPIPE, NULL));
818 if (surf_network_model->model_private->update_mechanism == UM_LAZY) {
819 surf_network_model->model_private->action_heap = xbt_heap_new(8, NULL);
820 xbt_heap_set_update_callback(surf_network_model->model_private->action_heap,
821 surf_action_lmm_update_index_heap);
822 surf_network_model->model_private->modified_set =
823 xbt_swag_new(xbt_swag_offset(comm, generic_lmm_action.action_list_hookup));
824 surf_network_model->model_private->maxmin_system->keep_track = surf_network_model->model_private->modified_set;
827 surf_network_model->gap_remove = NULL;
830 /************************************************************************/
831 /* New model based on LV08 and experimental results of MPI ping-pongs */
832 /************************************************************************/
833 /* @Inproceedings{smpi_ipdps, */
834 /* author={Pierre-Nicolas Clauss and Mark Stillwell and Stéphane Genaud and Frédéric Suter and Henri Casanova and Martin Quinson}, */
835 /* title={Single Node On-Line Simulation of {MPI} Applications with SMPI}, */
836 /* booktitle={25th IEEE International Parallel and Distributed Processing Symposium (IPDPS'11)}, */
837 /* address={Anchorage (Alaska) USA}, */
841 void surf_network_model_init_SMPI(void)
844 if (surf_network_model)
847 surf_network_model_init_internal();
848 latency_factor_callback = &smpi_latency_factor;
849 bandwidth_factor_callback = &smpi_bandwidth_factor;
850 bandwidth_constraint_callback = &smpi_bandwidth_constraint;
851 gap_append = &smpi_gap_append;
852 surf_network_model->gap_remove = &smpi_gap_remove;
853 net_define_callbacks();
854 xbt_dynar_push(model_list, &surf_network_model);
855 network_solve = lmm_solve;
857 xbt_cfg_setdefault_double(_sg_cfg_set, "network/sender_gap", 10e-6);
858 xbt_cfg_setdefault_double(_sg_cfg_set, "network/weight_S", 8775);
861 /************************************************************************/
862 /* New model based on optimizations discussed during Pedro Velho's thesis*/
863 /************************************************************************/
864 /* @techreport{VELHO:2011:HAL-00646896:1, */
865 /* url = {http://hal.inria.fr/hal-00646896/en/}, */
866 /* title = {{Flow-level network models: have we reached the limits?}}, */
867 /* author = {Velho, Pedro and Schnorr, Lucas and Casanova, Henri and Legrand, Arnaud}, */
868 /* type = {Rapport de recherche}, */
869 /* institution = {INRIA}, */
870 /* number = {RR-7821}, */
873 /* pdf = {http://hal.inria.fr/hal-00646896/PDF/rr-validity.pdf}, */
875 void surf_network_model_init_LegrandVelho(void)
877 if (surf_network_model)
880 surf_network_model_init_internal();
881 net_define_callbacks();
882 xbt_dynar_push(model_list, &surf_network_model);
883 network_solve = lmm_solve;
885 xbt_cfg_setdefault_double(_sg_cfg_set, "network/latency_factor",
887 xbt_cfg_setdefault_double(_sg_cfg_set, "network/bandwidth_factor",
889 xbt_cfg_setdefault_double(_sg_cfg_set, "network/weight_S", 20537);
892 /***************************************************************************/
893 /* The nice TCP sharing model designed by Loris Marchal and Henri Casanova */
894 /***************************************************************************/
895 /* @TechReport{ rr-lip2002-40, */
896 /* author = {Henri Casanova and Loris Marchal}, */
897 /* institution = {LIP}, */
898 /* title = {A Network Model for Simulation of Grid Application}, */
899 /* number = {2002-40}, */
903 void surf_network_model_init_CM02(void)
906 if (surf_network_model)
909 surf_network_model_init_internal();
910 net_define_callbacks();
911 xbt_dynar_push(model_list, &surf_network_model);
912 network_solve = lmm_solve;
914 xbt_cfg_setdefault_double(_sg_cfg_set, "network/latency_factor", 1.0);
915 xbt_cfg_setdefault_double(_sg_cfg_set, "network/bandwidth_factor",
917 xbt_cfg_setdefault_double(_sg_cfg_set, "network/weight_S", 0.0);
920 /***************************************************************************/
921 /* The models from Steven H. Low */
922 /***************************************************************************/
923 /* @article{Low03, */
924 /* author={Steven H. Low}, */
925 /* title={A Duality Model of {TCP} and Queue Management Algorithms}, */
927 /* journal={{IEEE/ACM} Transactions on Networking}, */
928 /* volume={11}, number={4}, */
930 void surf_network_model_init_Reno(void)
932 if (surf_network_model)
935 surf_network_model_init_internal();
936 net_define_callbacks();
938 xbt_dynar_push(model_list, &surf_network_model);
939 lmm_set_default_protocol_function(func_reno_f, func_reno_fp,
941 network_solve = lagrange_solve;
943 xbt_cfg_setdefault_double(_sg_cfg_set, "network/latency_factor", 10.4);
944 xbt_cfg_setdefault_double(_sg_cfg_set, "network/bandwidth_factor",
946 xbt_cfg_setdefault_double(_sg_cfg_set, "network/weight_S", 8775);
950 void surf_network_model_init_Reno2(void)
952 if (surf_network_model)
955 surf_network_model_init_internal();
956 net_define_callbacks();
958 xbt_dynar_push(model_list, &surf_network_model);
959 lmm_set_default_protocol_function(func_reno2_f, func_reno2_fp,
961 network_solve = lagrange_solve;
963 xbt_cfg_setdefault_double(_sg_cfg_set, "network/latency_factor", 10.4);
964 xbt_cfg_setdefault_double(_sg_cfg_set, "network/bandwidth_factor",
966 xbt_cfg_setdefault_double(_sg_cfg_set, "network/weight_S_parameter",
970 void surf_network_model_init_Vegas(void)
972 if (surf_network_model)
975 surf_network_model_init_internal();
976 net_define_callbacks();
978 xbt_dynar_push(model_list, &surf_network_model);
979 lmm_set_default_protocol_function(func_vegas_f, func_vegas_fp,
981 network_solve = lagrange_solve;
983 xbt_cfg_setdefault_double(_sg_cfg_set, "network/latency_factor", 10.4);
984 xbt_cfg_setdefault_double(_sg_cfg_set, "network/bandwidth_factor",
986 xbt_cfg_setdefault_double(_sg_cfg_set, "network/weight_S", 8775);