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"
26 #undef GENERIC_LMM_ACTION
28 #define GENERIC_LMM_ACTION(action) (action)->generic_lmm_action
29 #define GENERIC_ACTION(action) GENERIC_LMM_ACTION(action).generic_action
32 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_network, surf,
33 "Logging specific to the SURF network module");
35 surf_model_t surf_network_model = NULL;
36 static void (*network_solve) (lmm_system_t) = NULL;
38 xbt_dynar_t smpi_bw_factor = NULL;
39 xbt_dynar_t smpi_lat_factor = NULL;
41 typedef struct s_smpi_factor *smpi_factor_t;
42 typedef struct s_smpi_factor {
48 double sg_sender_gap = 0.0;
49 double sg_latency_factor = 1.0; /* default value; can be set by model or from command line */
50 double sg_bandwidth_factor = 1.0; /* default value; can be set by model or from command line */
51 double sg_weight_S_parameter = 0.0; /* default value; can be set by model or from command line */
53 double sg_tcp_gamma = 0.0;
54 int sg_network_crosstraffic = 0;
56 xbt_dict_t gap_lookup = NULL;
58 /******************************************************************************/
59 /* Factors callbacks */
60 /******************************************************************************/
61 static double constant_latency_factor(double size)
63 return sg_latency_factor;
66 static double constant_bandwidth_factor(double size)
68 return sg_bandwidth_factor;
71 static double constant_bandwidth_constraint(double rate, double bound,
77 /**********************/
79 /**********************/
80 static xbt_dynar_t parse_factor(const char *smpi_coef_string)
83 unsigned int iter = 0;
85 xbt_dynar_t smpi_factor, radical_elements, radical_elements2 = NULL;
87 smpi_factor = xbt_dynar_new(sizeof(s_smpi_factor_t), NULL);
88 radical_elements = xbt_str_split(smpi_coef_string, ";");
89 xbt_dynar_foreach(radical_elements, iter, value) {
91 radical_elements2 = xbt_str_split(value, ":");
92 if (xbt_dynar_length(radical_elements2) != 2)
93 xbt_die("Malformed radical for smpi factor!");
94 fact.factor = atol(xbt_dynar_get_as(radical_elements2, 0, char *));
95 fact.value = atof(xbt_dynar_get_as(radical_elements2, 1, char *));
96 xbt_dynar_push_as(smpi_factor, s_smpi_factor_t, fact);
97 XBT_DEBUG("smpi_factor:\t%ld : %f", fact.factor, fact.value);
98 xbt_dynar_free(&radical_elements2);
100 xbt_dynar_free(&radical_elements);
104 static double smpi_bandwidth_factor(double size)
108 parse_factor(xbt_cfg_get_string(_surf_cfg_set, "smpi/bw_factor"));
110 unsigned int iter = 0;
111 s_smpi_factor_t fact;
112 xbt_dynar_foreach(smpi_bw_factor, iter, fact) {
113 if (size >= fact.factor) {
114 XBT_DEBUG("%lf >= %ld return %f", size, fact.factor, fact.value);
122 static double smpi_latency_factor(double size)
124 if (!smpi_lat_factor)
126 parse_factor(xbt_cfg_get_string(_surf_cfg_set, "smpi/lat_factor"));
128 unsigned int iter = 0;
129 s_smpi_factor_t fact;
130 xbt_dynar_foreach(smpi_lat_factor, iter, fact) {
131 if (size >= fact.factor) {
132 XBT_DEBUG("%lf >= %ld return %f", size, fact.factor, fact.value);
140 /**--------- <copy/paste C code snippet in surf/network.c> -----------*/
142 static double smpi_bandwidth_constraint(double rate, double bound,
145 return rate < 0 ? bound : min(bound, rate * smpi_bandwidth_factor(size));
148 static double (*latency_factor_callback) (double) =
149 &constant_latency_factor;
150 static double (*bandwidth_factor_callback) (double) =
151 &constant_bandwidth_factor;
152 static double (*bandwidth_constraint_callback) (double, double, double) =
153 &constant_bandwidth_constraint;
155 static void (*gap_append) (double, const link_CM02_t,
156 surf_action_network_CM02_t) = NULL;
158 static void *net_create_resource(const 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 surf_network_model->model_private->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);
191 XBT_DEBUG("Create link '%s'",name);
196 static void net_parse_link_init(sg_platf_link_cbarg_t link)
198 if (link->policy == SURF_LINK_FULLDUPLEX) {
200 link_id = bprintf("%s_UP", link->id);
201 net_create_resource(link_id,
203 link->bandwidth_trace,
207 link->state_trace, link->policy, link->properties);
209 link_id = bprintf("%s_DOWN", link->id);
210 net_create_resource(link_id,
212 link->bandwidth_trace,
216 link->state_trace, link->policy, link->properties);
219 net_create_resource(link->id,
221 link->bandwidth_trace,
225 link->state_trace, link->policy, link->properties);
229 static void net_add_traces(void)
231 xbt_dict_cursor_t cursor = NULL;
232 char *trace_name, *elm;
234 static int called = 0;
239 /* connect all traces relative to network */
240 xbt_dict_foreach(trace_connect_list_link_avail, cursor, trace_name, elm) {
241 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
242 link_CM02_t link = xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL);
244 xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
247 "Cannot connect trace %s to link %s: trace undefined",
250 link->lmm_resource.state_event =
251 tmgr_history_add_trace(history, trace, 0.0, 0, link);
254 xbt_dict_foreach(trace_connect_list_bandwidth, cursor, trace_name, elm) {
255 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
256 link_CM02_t link = xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL);
258 xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
261 "Cannot connect trace %s to link %s: trace undefined",
264 link->lmm_resource.power.event =
265 tmgr_history_add_trace(history, trace, 0.0, 0, link);
268 xbt_dict_foreach(trace_connect_list_latency, cursor, trace_name, elm) {
269 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
270 link_CM02_t link = xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL);
272 xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
275 "Cannot connect trace %s to link %s: trace undefined",
278 link->lat_event = tmgr_history_add_trace(history, trace, 0.0, 0, link);
282 static void net_define_callbacks(void)
284 /* Figuring out the network links */
285 sg_platf_link_add_cb(net_parse_link_init);
286 sg_platf_postparse_add_cb(net_add_traces);
289 static int net_resource_used(void *resource_id)
291 return lmm_constraint_used(surf_network_model->model_private->maxmin_system, ((surf_resource_lmm_t)
296 void net_action_recycle(surf_action_t action)
301 #ifdef HAVE_LATENCY_BOUND_TRACKING
302 int net_get_link_latency_limited(surf_action_t action)
304 return action->latency_limited;
308 static double net_share_resources_full(double now)
310 s_surf_action_lmm_t s_action;
311 surf_action_network_CM02_t action = NULL;
312 xbt_swag_t running_actions =
313 surf_network_model->states.running_action_set;
316 min = generic_maxmin_share_resources(running_actions,
317 xbt_swag_offset(s_action,
319 surf_network_model->model_private->maxmin_system,
322 #define VARIABLE(action) (*((lmm_variable_t*)(((char *) (action)) + xbt_swag_offset(s_action, variable) )))
324 xbt_swag_foreach(action, running_actions) {
325 #ifdef HAVE_LATENCY_BOUND_TRACKING
326 if (lmm_is_variable_limited_by_latency(GENERIC_LMM_ACTION(action).variable)) {
327 action->latency_limited = 1;
329 action->latency_limited = 0;
332 if (action->latency > 0) {
333 min = (min < 0) ? action->latency : min(min, action->latency);
337 XBT_DEBUG("Min of share resources %f", min);
342 static double net_share_resources_lazy(double now)
344 return generic_share_resources_lazy(now, surf_network_model);
347 static void net_update_actions_state_full(double now, double delta)
349 generic_update_actions_state_full(now, delta, surf_network_model);
352 static void net_update_actions_state_lazy(double now, double delta)
354 generic_update_actions_state_lazy(now, delta, surf_network_model);
357 static void net_update_resource_state(void *id,
358 tmgr_trace_event_t event_type,
359 double value, double date)
361 link_CM02_t nw_link = id;
362 /* printf("[" "%lg" "] Asking to update network card \"%s\" with value " */
363 /* "%lg" " for event %p\n", surf_get_clock(), nw_link->name, */
364 /* value, event_type); */
366 if (event_type == nw_link->lmm_resource.power.event) {
368 sg_weight_S_parameter / value - sg_weight_S_parameter /
369 (nw_link->lmm_resource.power.peak *
370 nw_link->lmm_resource.power.scale);
371 lmm_variable_t var = NULL;
372 lmm_element_t elem = NULL;
373 surf_action_network_CM02_t action = NULL;
375 nw_link->lmm_resource.power.peak = value;
376 lmm_update_constraint_bound(surf_network_model->model_private->maxmin_system,
377 nw_link->lmm_resource.constraint,
378 sg_bandwidth_factor *
379 (nw_link->lmm_resource.power.peak *
380 nw_link->lmm_resource.power.scale));
382 TRACE_surf_link_set_bandwidth(date,
384 *) (((nw_link->lmm_resource).
385 generic_resource).name),
386 sg_bandwidth_factor *
387 (nw_link->lmm_resource.power.peak *
388 nw_link->lmm_resource.power.scale));
390 if (sg_weight_S_parameter > 0) {
391 while ((var = lmm_get_var_from_cnst
392 (surf_network_model->model_private->maxmin_system, nw_link->lmm_resource.constraint,
394 action = lmm_variable_id(var);
395 action->weight += delta;
396 if (!(GENERIC_LMM_ACTION(action).suspended))
397 lmm_update_variable_weight(surf_network_model->model_private->maxmin_system,
398 GENERIC_LMM_ACTION(action).variable, action->weight);
401 if (tmgr_trace_event_free(event_type))
402 nw_link->lmm_resource.power.event = NULL;
403 } else if (event_type == nw_link->lat_event) {
404 double delta = value - nw_link->lat_current;
405 lmm_variable_t var = NULL;
406 lmm_element_t elem = NULL;
407 surf_action_network_CM02_t action = NULL;
409 nw_link->lat_current = value;
410 while ((var = lmm_get_var_from_cnst
411 (surf_network_model->model_private->maxmin_system, nw_link->lmm_resource.constraint,
413 action = lmm_variable_id(var);
414 action->lat_current += delta;
415 action->weight += delta;
416 if (action->rate < 0)
417 lmm_update_variable_bound(surf_network_model->model_private->maxmin_system, GENERIC_LMM_ACTION(action).variable,
418 sg_tcp_gamma / (2.0 *
419 action->lat_current));
421 lmm_update_variable_bound(surf_network_model->model_private->maxmin_system, GENERIC_LMM_ACTION(action).variable,
423 sg_tcp_gamma / (2.0 *
427 if (action->rate < sg_tcp_gamma / (2.0 * action->lat_current)) {
428 XBT_INFO("Flow is limited BYBANDWIDTH");
430 XBT_INFO("Flow is limited BYLATENCY, latency of flow is %f",
431 action->lat_current);
434 if (!(GENERIC_LMM_ACTION(action).suspended))
435 lmm_update_variable_weight(surf_network_model->model_private->maxmin_system, GENERIC_LMM_ACTION(action).variable,
439 if (tmgr_trace_event_free(event_type))
440 nw_link->lat_event = NULL;
441 } else if (event_type == nw_link->lmm_resource.state_event) {
443 nw_link->lmm_resource.state_current = SURF_RESOURCE_ON;
445 lmm_constraint_t cnst = nw_link->lmm_resource.constraint;
446 lmm_variable_t var = NULL;
447 lmm_element_t elem = NULL;
449 nw_link->lmm_resource.state_current = SURF_RESOURCE_OFF;
450 while ((var = lmm_get_var_from_cnst
451 (surf_network_model->model_private->maxmin_system, cnst, &elem))) {
452 surf_action_t action = lmm_variable_id(var);
454 if (surf_action_state_get(action) == SURF_ACTION_RUNNING ||
455 surf_action_state_get(action) == SURF_ACTION_READY) {
456 action->finish = date;
457 surf_network_model->action_state_set(action, SURF_ACTION_FAILED);
461 if (tmgr_trace_event_free(event_type))
462 nw_link->lmm_resource.state_event = NULL;
464 XBT_CRITICAL("Unknown event ! \n");
469 ("There were a resource state event, need to update actions related to the constraint (%p)",
470 nw_link->lmm_resource.constraint);
475 static surf_action_t net_communicate(sg_routing_edge_t src,
476 sg_routing_edge_t dst,
477 double size, double rate)
482 surf_action_network_CM02_t action = NULL;
483 double bandwidth_bound;
484 double latency = 0.0;
485 xbt_dynar_t back_route = NULL;
486 int constraints_per_variable = 0;
488 xbt_dynar_t route = xbt_dynar_new(sizeof(sg_routing_link_t), NULL);
490 XBT_IN("(%s,%s,%g,%g)", src->name, dst->name, size, rate);
492 routing_get_route_and_latency(src, dst, &route, &latency);
493 xbt_assert(!xbt_dynar_is_empty(route) || latency,
494 "You're trying to send data from %s to %s but there is no connection at all between these two hosts.",
495 src->name, dst->name);
497 xbt_dynar_foreach(route, i, link) {
498 if (link->lmm_resource.state_current == SURF_RESOURCE_OFF) {
503 if (sg_network_crosstraffic == 1) {
504 routing_get_route_and_latency(dst, src, &back_route, NULL);
505 xbt_dynar_foreach(back_route, i, link) {
506 if (link->lmm_resource.state_current == SURF_RESOURCE_OFF) {
514 surf_action_new(sizeof(s_surf_action_network_CM02_t), size,
515 surf_network_model, failed);
516 #ifdef HAVE_LATENCY_BOUND_TRACKING
517 action->latency_limited = 0;
519 action->weight = action->latency = latency;
521 xbt_swag_insert(action, ((surf_action_t)action)->state_set);
523 if (surf_network_model->model_private->update_mechanism == UM_LAZY) {
524 GENERIC_LMM_ACTION(action).index_heap = -1;
525 GENERIC_LMM_ACTION(action).last_update = surf_get_clock();
528 bandwidth_bound = -1.0;
529 if (sg_weight_S_parameter > 0) {
530 xbt_dynar_foreach(route, i, link) {
532 sg_weight_S_parameter /
533 (link->lmm_resource.power.peak * link->lmm_resource.power.scale);
536 xbt_dynar_foreach(route, i, link) {
537 double bb = bandwidth_factor_callback(size) *
538 (link->lmm_resource.power.peak * link->lmm_resource.power.scale);
540 (bandwidth_bound < 0.0) ? bb : min(bandwidth_bound, bb);
543 action->lat_current = action->latency;
544 action->latency *= latency_factor_callback(size);
546 bandwidth_constraint_callback(action->rate, bandwidth_bound, size);
548 xbt_assert(!xbt_dynar_is_empty(route),
549 "Using a model with a gap (e.g., SMPI) with a platform without links (e.g. vivaldi)!!!");
551 link = *(link_CM02_t *) xbt_dynar_get_ptr(route, 0);
552 gap_append(size, link, action);
553 XBT_DEBUG("Comm %p: %s -> %s gap=%f (lat=%f)",
554 action, src->name, dst->name, action->sender.gap,
558 constraints_per_variable = xbt_dynar_length(route);
559 if (back_route != NULL)
560 constraints_per_variable += xbt_dynar_length(back_route);
562 if (action->latency > 0) {
563 GENERIC_LMM_ACTION(action).variable =
564 lmm_variable_new(surf_network_model->model_private->maxmin_system, action, 0.0, -1.0,
565 constraints_per_variable);
566 if (surf_network_model->model_private->update_mechanism == UM_LAZY) {
567 // add to the heap the event when the latency is payed
568 XBT_DEBUG("Added action (%p) one latency event at date %f", action,
569 action->latency + GENERIC_LMM_ACTION(action).last_update);
570 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,
571 xbt_dynar_is_empty(route) ? NORMAL : LATENCY);
574 GENERIC_LMM_ACTION(action).variable =
575 lmm_variable_new(surf_network_model->model_private->maxmin_system, action, 1.0, -1.0,
576 constraints_per_variable);
578 if (action->rate < 0) {
579 lmm_update_variable_bound(surf_network_model->model_private->maxmin_system, GENERIC_LMM_ACTION(action).variable,
580 (action->lat_current > 0) ?
581 sg_tcp_gamma / (2.0 *
582 action->lat_current) : -1.0);
584 lmm_update_variable_bound(surf_network_model->model_private->maxmin_system, GENERIC_LMM_ACTION(action).variable,
585 (action->lat_current > 0) ?
587 sg_tcp_gamma / (2.0 *
588 action->lat_current))
592 xbt_dynar_foreach(route, i, link) {
593 lmm_expand(surf_network_model->model_private->maxmin_system, link->lmm_resource.constraint,
594 GENERIC_LMM_ACTION(action).variable, 1.0);
597 if (sg_network_crosstraffic == 1) {
598 XBT_DEBUG("Fullduplex active adding backward flow using 5%%");
599 xbt_dynar_foreach(back_route, i, link) {
600 lmm_expand(surf_network_model->model_private->maxmin_system, link->lmm_resource.constraint,
601 GENERIC_LMM_ACTION(action).variable, .05);
605 xbt_dynar_free(&route);
608 return (surf_action_t) action;
611 static xbt_dynar_t net_get_route(void *src, void *dst)
613 xbt_dynar_t route = NULL;
614 routing_get_route_and_latency(src, dst, &route, NULL);
618 static double net_get_link_bandwidth(const void *link)
620 surf_resource_lmm_t lmm = (surf_resource_lmm_t) link;
621 return lmm->power.peak * lmm->power.scale;
624 static double net_get_link_latency(const void *link)
626 return ((link_CM02_t) link)->lat_current;
629 static int net_link_shared(const void *link)
632 lmm_constraint_is_shared(((surf_resource_lmm_t) link)->constraint);
635 static void net_finalize(void)
637 lmm_system_free(surf_network_model->model_private->maxmin_system);
638 surf_network_model->model_private->maxmin_system = NULL;
640 if (surf_network_model->model_private->update_mechanism == UM_LAZY) {
641 xbt_heap_free(surf_network_model->model_private->action_heap);
642 xbt_swag_free(surf_network_model->model_private->modified_set);
645 surf_model_exit(surf_network_model);
646 surf_network_model = NULL;
649 xbt_dynar_free(&smpi_bw_factor);
651 xbt_dynar_free(&smpi_lat_factor);
654 static void smpi_gap_append(double size, const link_CM02_t link,
655 surf_action_network_CM02_t action)
657 const char *src = link->lmm_resource.generic_resource.name;
659 surf_action_network_CM02_t last_action;
662 if (sg_sender_gap > 0.0) {
664 gap_lookup = xbt_dict_new();
666 fifo = (xbt_fifo_t) xbt_dict_get_or_null(gap_lookup, src);
667 action->sender.gap = 0.0;
668 if (fifo && xbt_fifo_size(fifo) > 0) {
669 /* Compute gap from last send */
671 (surf_action_network_CM02_t)
672 xbt_fifo_get_item_content(xbt_fifo_get_last_item(fifo));
673 bw = net_get_link_bandwidth(link);
675 last_action->sender.gap + max(sg_sender_gap,
676 last_action->sender.size / bw);
677 action->latency += action->sender.gap;
679 /* Append action as last send */
680 action->sender.link_name = link->lmm_resource.generic_resource.name;
682 (xbt_fifo_t) xbt_dict_get_or_null(gap_lookup,
683 action->sender.link_name);
685 fifo = xbt_fifo_new();
686 xbt_dict_set(gap_lookup, action->sender.link_name, fifo, NULL);
688 action->sender.fifo_item = xbt_fifo_push(fifo, action);
689 action->sender.size = size;
693 static void smpi_gap_remove(surf_action_lmm_t lmm_action)
697 surf_action_network_CM02_t action = (surf_action_network_CM02_t)(lmm_action);
699 if (sg_sender_gap > 0.0 && action->sender.link_name
700 && action->sender.fifo_item) {
702 (xbt_fifo_t) xbt_dict_get_or_null(gap_lookup,
703 action->sender.link_name);
704 xbt_fifo_remove_item(fifo, action->sender.fifo_item);
705 size = xbt_fifo_size(fifo);
708 xbt_dict_remove(gap_lookup, action->sender.link_name);
709 size = xbt_dict_length(gap_lookup);
711 xbt_dict_free(&gap_lookup);
717 static void set_update_mechanism(void)
719 char *optim = xbt_cfg_get_string(_surf_cfg_set, "network/optim");
721 xbt_cfg_get_int(_surf_cfg_set, "network/maxmin_selective_update");
723 if (!strcmp(optim, "Full")) {
724 surf_network_model->model_private->update_mechanism = UM_FULL;
725 surf_network_model->model_private->selective_update = select;
726 } else if (!strcmp(optim, "Lazy")) {
727 surf_network_model->model_private->update_mechanism = UM_LAZY;
728 surf_network_model->model_private->selective_update = 1;
729 xbt_assert((select == 1)
731 (xbt_cfg_is_default_value
732 (_surf_cfg_set, "network/maxmin_selective_update")),
733 "Disabling selective update while using the lazy update mechanism is dumb!");
735 xbt_die("Unsupported optimization (%s) for this model", optim);
739 static void surf_network_model_init_internal(void)
741 s_surf_action_network_CM02_t comm;
742 surf_network_model = surf_model_init();
744 set_update_mechanism();
746 surf_network_model->name = "network";
747 surf_network_model->action_unref = surf_action_unref;
748 surf_network_model->action_cancel = surf_action_cancel;
749 surf_network_model->action_recycle = net_action_recycle;
751 surf_network_model->get_remains = surf_action_get_remains;
753 #ifdef HAVE_LATENCY_BOUND_TRACKING
754 surf_network_model->get_latency_limited = net_get_link_latency_limited;
757 surf_network_model->set_category = surf_action_set_category;
760 surf_network_model->model_private->resource_used = net_resource_used;
761 if (surf_network_model->model_private->update_mechanism == UM_LAZY) {
762 surf_network_model->model_private->share_resources =
763 net_share_resources_lazy;
764 surf_network_model->model_private->update_actions_state =
765 net_update_actions_state_lazy;
766 } else if (surf_network_model->model_private->update_mechanism == UM_FULL) {
767 surf_network_model->model_private->share_resources =
768 net_share_resources_full;
769 surf_network_model->model_private->update_actions_state =
770 net_update_actions_state_full;
773 surf_network_model->model_private->update_resource_state =
774 net_update_resource_state;
775 surf_network_model->model_private->finalize = net_finalize;
777 surf_network_model->suspend = surf_action_suspend;
778 surf_network_model->resume = surf_action_resume;
779 surf_network_model->is_suspended = surf_action_is_suspended;
780 surf_cpu_model->set_max_duration = surf_action_set_max_duration;
782 surf_network_model->extension.network.communicate = net_communicate;
783 surf_network_model->extension.network.get_route = net_get_route;
784 surf_network_model->extension.network.get_link_bandwidth =
785 net_get_link_bandwidth;
786 surf_network_model->extension.network.get_link_latency =
787 net_get_link_latency;
788 surf_network_model->extension.network.link_shared = net_link_shared;
789 surf_network_model->extension.network.add_traces = net_add_traces;
790 surf_network_model->extension.network.create_resource =
793 if (!surf_network_model->model_private->maxmin_system)
794 surf_network_model->model_private->maxmin_system = lmm_system_new(surf_network_model->model_private->selective_update);
796 routing_model_create(net_create_resource("__loopback__",
797 498000000, NULL, 0.000015, NULL,
798 SURF_RESOURCE_ON, NULL,
799 SURF_LINK_FATPIPE, NULL));
801 if (surf_network_model->model_private->update_mechanism == UM_LAZY) {
802 surf_network_model->model_private->action_heap = xbt_heap_new(8, NULL);
803 xbt_heap_set_update_callback(surf_network_model->model_private->action_heap,
804 surf_action_lmm_update_index_heap);
805 surf_network_model->model_private->modified_set =
806 xbt_swag_new(xbt_swag_offset(comm, generic_lmm_action.action_list_hookup));
807 surf_network_model->model_private->maxmin_system->keep_track = surf_network_model->model_private->modified_set;
810 surf_network_model->gap_remove = NULL;
813 /************************************************************************/
814 /* New model based on LV08 and experimental results of MPI ping-pongs */
815 /************************************************************************/
816 /* @Inproceedings{smpi_ipdps, */
817 /* author={Pierre-Nicolas Clauss and Mark Stillwell and Stéphane Genaud and Frédéric Suter and Henri Casanova and Martin Quinson}, */
818 /* title={Single Node On-Line Simulation of {MPI} Applications with SMPI}, */
819 /* booktitle={25th IEEE International Parallel and Distributed Processing Symposium (IPDPS'11)}, */
820 /* address={Anchorage (Alaska) USA}, */
824 void surf_network_model_init_SMPI(void)
827 if (surf_network_model)
830 surf_network_model_init_internal();
831 latency_factor_callback = &smpi_latency_factor;
832 bandwidth_factor_callback = &smpi_bandwidth_factor;
833 bandwidth_constraint_callback = &smpi_bandwidth_constraint;
834 gap_append = &smpi_gap_append;
835 surf_network_model->gap_remove = &smpi_gap_remove;
836 net_define_callbacks();
837 xbt_dynar_push(model_list, &surf_network_model);
838 network_solve = lmm_solve;
840 xbt_cfg_setdefault_double(_surf_cfg_set, "network/sender_gap", 10e-6);
841 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 8775);
844 /************************************************************************/
845 /* New model based on optimizations discussed during Pedro Velho's thesis*/
846 /************************************************************************/
847 /* @techreport{VELHO:2011:HAL-00646896:1, */
848 /* url = {http://hal.inria.fr/hal-00646896/en/}, */
849 /* title = {{Flow-level network models: have we reached the limits?}}, */
850 /* author = {Velho, Pedro and Schnorr, Lucas and Casanova, Henri and Legrand, Arnaud}, */
851 /* type = {Rapport de recherche}, */
852 /* institution = {INRIA}, */
853 /* number = {RR-7821}, */
856 /* pdf = {http://hal.inria.fr/hal-00646896/PDF/rr-validity.pdf}, */
858 void surf_network_model_init_LegrandVelho(void)
860 if (surf_network_model)
863 surf_network_model_init_internal();
864 net_define_callbacks();
865 xbt_dynar_push(model_list, &surf_network_model);
866 network_solve = lmm_solve;
868 xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor",
870 xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
872 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 20537);
875 /***************************************************************************/
876 /* The nice TCP sharing model designed by Loris Marchal and Henri Casanova */
877 /***************************************************************************/
878 /* @TechReport{ rr-lip2002-40, */
879 /* author = {Henri Casanova and Loris Marchal}, */
880 /* institution = {LIP}, */
881 /* title = {A Network Model for Simulation of Grid Application}, */
882 /* number = {2002-40}, */
886 void surf_network_model_init_CM02(void)
889 if (surf_network_model)
892 surf_network_model_init_internal();
893 net_define_callbacks();
894 xbt_dynar_push(model_list, &surf_network_model);
895 network_solve = lmm_solve;
897 xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor", 1.0);
898 xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
900 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 0.0);
903 /***************************************************************************/
904 /* The models from Steven H. Low */
905 /***************************************************************************/
906 /* @article{Low03, */
907 /* author={Steven H. Low}, */
908 /* title={A Duality Model of {TCP} and Queue Management Algorithms}, */
910 /* journal={{IEEE/ACM} Transactions on Networking}, */
911 /* volume={11}, number={4}, */
913 void surf_network_model_init_Reno(void)
915 if (surf_network_model)
918 surf_network_model_init_internal();
919 net_define_callbacks();
921 xbt_dynar_push(model_list, &surf_network_model);
922 lmm_set_default_protocol_function(func_reno_f, func_reno_fp,
924 network_solve = lagrange_solve;
926 xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor", 10.4);
927 xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
929 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 8775);
933 void surf_network_model_init_Reno2(void)
935 if (surf_network_model)
938 surf_network_model_init_internal();
939 net_define_callbacks();
941 xbt_dynar_push(model_list, &surf_network_model);
942 lmm_set_default_protocol_function(func_reno2_f, func_reno2_fp,
944 network_solve = lagrange_solve;
946 xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor", 10.4);
947 xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
949 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S_parameter",
953 void surf_network_model_init_Vegas(void)
955 if (surf_network_model)
958 surf_network_model_init_internal();
959 net_define_callbacks();
961 xbt_dynar_push(model_list, &surf_network_model);
962 lmm_set_default_protocol_function(func_vegas_f, func_vegas_fp,
964 network_solve = lagrange_solve;
966 xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor", 10.4);
967 xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
969 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 8775);