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) 2004-2013. 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) ? 1 :
85 (((s_smpi_factor_t*)pa)->factor < ((s_smpi_factor_t*)pb)->factor) ? -1 : 0;
89 static xbt_dynar_t parse_factor(const char *smpi_coef_string)
92 unsigned int iter = 0;
94 xbt_dynar_t smpi_factor, radical_elements, radical_elements2 = NULL;
96 smpi_factor = xbt_dynar_new(sizeof(s_smpi_factor_t), NULL);
97 radical_elements = xbt_str_split(smpi_coef_string, ";");
98 xbt_dynar_foreach(radical_elements, iter, value) {
100 radical_elements2 = xbt_str_split(value, ":");
101 if (xbt_dynar_length(radical_elements2) != 2)
102 xbt_die("Malformed radical for smpi factor!");
103 fact.factor = atol(xbt_dynar_get_as(radical_elements2, 0, char *));
104 fact.value = atof(xbt_dynar_get_as(radical_elements2, 1, char *));
105 xbt_dynar_push_as(smpi_factor, s_smpi_factor_t, fact);
106 XBT_DEBUG("smpi_factor:\t%ld : %f", fact.factor, fact.value);
107 xbt_dynar_free(&radical_elements2);
109 xbt_dynar_free(&radical_elements);
111 xbt_dynar_sort(smpi_factor, &factor_cmp);
112 xbt_dynar_foreach(smpi_factor, iter, fact) {
113 XBT_DEBUG("ordered smpi_factor:\t%ld : %f", fact.factor, fact.value);
119 static double smpi_bandwidth_factor(double size)
123 parse_factor(sg_cfg_get_string("smpi/bw_factor"));
125 unsigned int iter = 0;
126 s_smpi_factor_t fact;
128 xbt_dynar_foreach(smpi_bw_factor, iter, fact) {
129 if (size <= fact.factor) {
130 XBT_DEBUG("%f <= %ld return %f", size, fact.factor, current);
135 XBT_DEBUG("%f > %ld return %f", size, fact.factor, current);
140 static double smpi_latency_factor(double size)
142 if (!smpi_lat_factor)
144 parse_factor(sg_cfg_get_string("smpi/lat_factor"));
146 unsigned int iter = 0;
147 s_smpi_factor_t fact;
149 xbt_dynar_foreach(smpi_lat_factor, iter, fact) {
150 if (size <= fact.factor) {
151 XBT_DEBUG("%f <= %ld return %f", size, fact.factor, current);
156 XBT_DEBUG("%f > %ld return %f", size, fact.factor, current);
161 /**--------- <copy/paste C code snippet in surf/network.c> -----------*/
163 static double smpi_bandwidth_constraint(double rate, double bound,
166 return rate < 0 ? bound : min(bound, rate * smpi_bandwidth_factor(size));
169 static double (*latency_factor_callback) (double) =
170 &constant_latency_factor;
171 static double (*bandwidth_factor_callback) (double) =
172 &constant_bandwidth_factor;
173 static double (*bandwidth_constraint_callback) (double, double, double) =
174 &constant_bandwidth_constraint;
176 static void (*gap_append) (double, const link_CM02_t,
177 surf_action_network_CM02_t) = NULL;
179 static void *net_create_resource(const char *name,
181 tmgr_trace_t bw_trace,
183 tmgr_trace_t lat_trace,
184 e_surf_resource_state_t
186 tmgr_trace_t state_trace,
187 e_surf_link_sharing_policy_t
188 policy, xbt_dict_t properties)
190 link_CM02_t nw_link = (link_CM02_t)
191 surf_resource_lmm_new(sizeof(s_link_CM02_t),
192 surf_network_model, name, properties,
193 surf_network_model->model_private->maxmin_system,
194 sg_bandwidth_factor * bw_initial,
196 state_initial, state_trace,
197 bw_initial, bw_trace);
199 xbt_assert(!xbt_lib_get_or_null(link_lib, name, SURF_LINK_LEVEL),
200 "Link '%s' declared several times in the platform file.",
203 nw_link->lat_current = lat_initial;
206 tmgr_history_add_trace(history, lat_trace, 0.0, 0, nw_link);
208 if (policy == SURF_LINK_FATPIPE)
209 lmm_constraint_shared(nw_link->lmm_resource.constraint);
211 xbt_lib_set(link_lib, name, SURF_LINK_LEVEL, nw_link);
212 XBT_DEBUG("Create link '%s'",name);
217 static void net_parse_link_init(sg_platf_link_cbarg_t link)
219 if (link->policy == SURF_LINK_FULLDUPLEX) {
221 link_id = bprintf("%s_UP", link->id);
222 net_create_resource(link_id,
224 link->bandwidth_trace,
228 link->state_trace, link->policy, link->properties);
230 link_id = bprintf("%s_DOWN", link->id);
231 net_create_resource(link_id,
233 link->bandwidth_trace,
237 link->state_trace, link->policy, link->properties);
240 net_create_resource(link->id,
242 link->bandwidth_trace,
246 link->state_trace, link->policy, link->properties);
250 static void net_add_traces(void)
252 xbt_dict_cursor_t cursor = NULL;
253 char *trace_name, *elm;
255 static int called = 0;
260 /* connect all traces relative to network */
261 xbt_dict_foreach(trace_connect_list_link_avail, cursor, trace_name, elm) {
262 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
263 link_CM02_t link = xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL);
265 xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
268 "Cannot connect trace %s to link %s: trace undefined",
271 link->lmm_resource.state_event =
272 tmgr_history_add_trace(history, trace, 0.0, 0, link);
275 xbt_dict_foreach(trace_connect_list_bandwidth, cursor, trace_name, elm) {
276 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
277 link_CM02_t link = xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL);
279 xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
282 "Cannot connect trace %s to link %s: trace undefined",
285 link->lmm_resource.power.event =
286 tmgr_history_add_trace(history, trace, 0.0, 0, link);
289 xbt_dict_foreach(trace_connect_list_latency, cursor, trace_name, elm) {
290 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
291 link_CM02_t link = xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL);
293 xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
296 "Cannot connect trace %s to link %s: trace undefined",
299 link->lat_event = tmgr_history_add_trace(history, trace, 0.0, 0, link);
303 static void net_define_callbacks(void)
305 /* Figuring out the network links */
306 sg_platf_link_add_cb(net_parse_link_init);
307 sg_platf_postparse_add_cb(net_add_traces);
310 static int net_resource_used(void *resource_id)
312 return lmm_constraint_used(surf_network_model->model_private->maxmin_system, ((surf_resource_lmm_t)
317 void net_action_recycle(surf_action_t action)
322 #ifdef HAVE_LATENCY_BOUND_TRACKING
323 int net_get_link_latency_limited(surf_action_t action)
325 return action->latency_limited;
329 static double net_share_resources_full(surf_model_t network_model, double now)
331 s_surf_action_lmm_t s_action;
332 surf_action_network_CM02_t action = NULL;
333 xbt_swag_t running_actions =
334 network_model->states.running_action_set;
337 min = generic_maxmin_share_resources(running_actions,
338 xbt_swag_offset(s_action,
340 network_model->model_private->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(GENERIC_LMM_ACTION(action).variable)) {
348 action->latency_limited = 1;
350 action->latency_limited = 0;
353 if (action->latency > 0) {
354 min = (min < 0) ? action->latency : min(min, action->latency);
358 XBT_DEBUG("Min of share resources %f", min);
363 static double net_share_resources_lazy(surf_model_t network_model, double now)
365 return generic_share_resources_lazy(now, network_model);
368 static void net_update_actions_state_full(surf_model_t network_model, double now, double delta)
370 generic_update_actions_state_full(now, delta, network_model);
373 static void net_update_actions_state_lazy(surf_model_t network_model, double now, double delta)
375 generic_update_actions_state_lazy(now, delta, network_model);
378 static void net_update_resource_state(void *id,
379 tmgr_trace_event_t event_type,
380 double value, double date)
382 link_CM02_t nw_link = id;
383 /* printf("[" "%g" "] Asking to update network card \"%s\" with value " */
384 /* "%g" " for event %p\n", surf_get_clock(), nw_link->name, */
385 /* value, event_type); */
387 if (event_type == nw_link->lmm_resource.power.event) {
389 sg_weight_S_parameter / value - sg_weight_S_parameter /
390 (nw_link->lmm_resource.power.peak *
391 nw_link->lmm_resource.power.scale);
392 lmm_variable_t var = NULL;
393 lmm_element_t elem = NULL;
394 surf_action_network_CM02_t action = NULL;
396 nw_link->lmm_resource.power.peak = value;
397 lmm_update_constraint_bound(surf_network_model->model_private->maxmin_system,
398 nw_link->lmm_resource.constraint,
399 sg_bandwidth_factor *
400 (nw_link->lmm_resource.power.peak *
401 nw_link->lmm_resource.power.scale));
403 TRACE_surf_link_set_bandwidth(date,
405 *) (((nw_link->lmm_resource).
406 generic_resource).name),
407 sg_bandwidth_factor *
408 (nw_link->lmm_resource.power.peak *
409 nw_link->lmm_resource.power.scale));
411 if (sg_weight_S_parameter > 0) {
412 while ((var = lmm_get_var_from_cnst
413 (surf_network_model->model_private->maxmin_system, nw_link->lmm_resource.constraint,
415 action = lmm_variable_id(var);
416 action->weight += delta;
417 if (!(GENERIC_LMM_ACTION(action).suspended))
418 lmm_update_variable_weight(surf_network_model->model_private->maxmin_system,
419 GENERIC_LMM_ACTION(action).variable, action->weight);
422 if (tmgr_trace_event_free(event_type))
423 nw_link->lmm_resource.power.event = NULL;
424 } else if (event_type == nw_link->lat_event) {
425 double delta = value - nw_link->lat_current;
426 lmm_variable_t var = NULL;
427 lmm_element_t elem = NULL;
428 surf_action_network_CM02_t action = NULL;
430 nw_link->lat_current = value;
431 while ((var = lmm_get_var_from_cnst
432 (surf_network_model->model_private->maxmin_system, nw_link->lmm_resource.constraint,
434 action = lmm_variable_id(var);
435 action->lat_current += delta;
436 action->weight += delta;
437 if (action->rate < 0)
438 lmm_update_variable_bound(surf_network_model->model_private->maxmin_system, GENERIC_LMM_ACTION(action).variable,
439 sg_tcp_gamma / (2.0 *
440 action->lat_current));
442 lmm_update_variable_bound(surf_network_model->model_private->maxmin_system, GENERIC_LMM_ACTION(action).variable,
444 sg_tcp_gamma / (2.0 *
448 if (action->rate < sg_tcp_gamma / (2.0 * action->lat_current)) {
449 XBT_INFO("Flow is limited BYBANDWIDTH");
451 XBT_INFO("Flow is limited BYLATENCY, latency of flow is %f",
452 action->lat_current);
455 if (!(GENERIC_LMM_ACTION(action).suspended))
456 lmm_update_variable_weight(surf_network_model->model_private->maxmin_system, GENERIC_LMM_ACTION(action).variable,
460 if (tmgr_trace_event_free(event_type))
461 nw_link->lat_event = NULL;
462 } else if (event_type == nw_link->lmm_resource.state_event) {
464 nw_link->lmm_resource.state_current = SURF_RESOURCE_ON;
466 lmm_constraint_t cnst = nw_link->lmm_resource.constraint;
467 lmm_variable_t var = NULL;
468 lmm_element_t elem = NULL;
470 nw_link->lmm_resource.state_current = SURF_RESOURCE_OFF;
471 while ((var = lmm_get_var_from_cnst
472 (surf_network_model->model_private->maxmin_system, cnst, &elem))) {
473 surf_action_t action = lmm_variable_id(var);
475 if (surf_action_state_get(action) == SURF_ACTION_RUNNING ||
476 surf_action_state_get(action) == SURF_ACTION_READY) {
477 action->finish = date;
478 surf_network_model->action_state_set(action, SURF_ACTION_FAILED);
482 if (tmgr_trace_event_free(event_type))
483 nw_link->lmm_resource.state_event = NULL;
485 XBT_CRITICAL("Unknown event ! \n");
490 ("There were a resource state event, need to update actions related to the constraint (%p)",
491 nw_link->lmm_resource.constraint);
496 static surf_action_t net_communicate(sg_routing_edge_t src,
497 sg_routing_edge_t dst,
498 double size, double rate)
503 surf_action_network_CM02_t action = NULL;
504 double bandwidth_bound;
505 double latency = 0.0;
506 xbt_dynar_t back_route = NULL;
507 int constraints_per_variable = 0;
509 xbt_dynar_t route = xbt_dynar_new(sizeof(sg_routing_link_t), NULL);
511 XBT_IN("(%s,%s,%g,%g)", src->name, dst->name, size, rate);
513 routing_get_route_and_latency(src, dst, &route, &latency);
514 xbt_assert(!xbt_dynar_is_empty(route) || latency,
515 "You're trying to send data from %s to %s but there is no connection at all between these two hosts.",
516 src->name, dst->name);
518 xbt_dynar_foreach(route, i, link) {
519 if (link->lmm_resource.state_current == SURF_RESOURCE_OFF) {
524 if (sg_network_crosstraffic == 1) {
525 routing_get_route_and_latency(dst, src, &back_route, NULL);
526 xbt_dynar_foreach(back_route, i, link) {
527 if (link->lmm_resource.state_current == SURF_RESOURCE_OFF) {
535 surf_action_new(sizeof(s_surf_action_network_CM02_t), size,
536 surf_network_model, failed);
537 #ifdef HAVE_LATENCY_BOUND_TRACKING
538 action->latency_limited = 0;
540 action->weight = action->latency = latency;
542 xbt_swag_insert(action, ((surf_action_t)action)->state_set);
544 if (surf_network_model->model_private->update_mechanism == UM_LAZY) {
545 GENERIC_LMM_ACTION(action).index_heap = -1;
546 GENERIC_LMM_ACTION(action).last_update = surf_get_clock();
549 bandwidth_bound = -1.0;
550 if (sg_weight_S_parameter > 0) {
551 xbt_dynar_foreach(route, i, link) {
553 sg_weight_S_parameter /
554 (link->lmm_resource.power.peak * link->lmm_resource.power.scale);
557 xbt_dynar_foreach(route, i, link) {
558 double bb = bandwidth_factor_callback(size) *
559 (link->lmm_resource.power.peak * link->lmm_resource.power.scale);
561 (bandwidth_bound < 0.0) ? bb : min(bandwidth_bound, bb);
564 action->lat_current = action->latency;
565 action->latency *= latency_factor_callback(size);
567 bandwidth_constraint_callback(action->rate, bandwidth_bound, size);
569 xbt_assert(!xbt_dynar_is_empty(route),
570 "Using a model with a gap (e.g., SMPI) with a platform without links (e.g. vivaldi)!!!");
572 link = *(link_CM02_t *) xbt_dynar_get_ptr(route, 0);
573 gap_append(size, link, action);
574 XBT_DEBUG("Comm %p: %s -> %s gap=%f (lat=%f)",
575 action, src->name, dst->name, action->sender.gap,
579 constraints_per_variable = xbt_dynar_length(route);
580 if (back_route != NULL)
581 constraints_per_variable += xbt_dynar_length(back_route);
583 if (action->latency > 0) {
584 GENERIC_LMM_ACTION(action).variable =
585 lmm_variable_new(surf_network_model->model_private->maxmin_system, action, 0.0, -1.0,
586 constraints_per_variable);
587 if (surf_network_model->model_private->update_mechanism == UM_LAZY) {
588 // add to the heap the event when the latency is payed
589 XBT_DEBUG("Added action (%p) one latency event at date %f", action,
590 action->latency + GENERIC_LMM_ACTION(action).last_update);
591 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,
592 xbt_dynar_is_empty(route) ? NORMAL : LATENCY);
595 GENERIC_LMM_ACTION(action).variable =
596 lmm_variable_new(surf_network_model->model_private->maxmin_system, action, 1.0, -1.0,
597 constraints_per_variable);
599 if (action->rate < 0) {
600 lmm_update_variable_bound(surf_network_model->model_private->maxmin_system, GENERIC_LMM_ACTION(action).variable,
601 (action->lat_current > 0) ?
602 sg_tcp_gamma / (2.0 *
603 action->lat_current) : -1.0);
605 lmm_update_variable_bound(surf_network_model->model_private->maxmin_system, GENERIC_LMM_ACTION(action).variable,
606 (action->lat_current > 0) ?
608 sg_tcp_gamma / (2.0 *
609 action->lat_current))
613 xbt_dynar_foreach(route, i, link) {
614 lmm_expand(surf_network_model->model_private->maxmin_system, link->lmm_resource.constraint,
615 GENERIC_LMM_ACTION(action).variable, 1.0);
618 if (sg_network_crosstraffic == 1) {
619 XBT_DEBUG("Fullduplex active adding backward flow using 5%%");
620 xbt_dynar_foreach(back_route, i, link) {
621 lmm_expand(surf_network_model->model_private->maxmin_system, link->lmm_resource.constraint,
622 GENERIC_LMM_ACTION(action).variable, .05);
626 xbt_dynar_free(&route);
629 return (surf_action_t) action;
632 static xbt_dynar_t net_get_route(void *src, void *dst)
634 xbt_dynar_t route = NULL;
635 routing_get_route_and_latency(src, dst, &route, NULL);
639 static double net_get_link_bandwidth(const void *link)
641 surf_resource_lmm_t lmm = (surf_resource_lmm_t) link;
642 return lmm->power.peak * lmm->power.scale;
645 static double net_get_link_latency(const void *link)
647 return ((link_CM02_t) link)->lat_current;
650 static int net_link_shared(const void *link)
653 lmm_constraint_is_shared(((surf_resource_lmm_t) link)->constraint);
656 static void net_finalize(surf_model_t network_model)
658 lmm_system_free(network_model->model_private->maxmin_system);
659 network_model->model_private->maxmin_system = NULL;
661 if (network_model->model_private->update_mechanism == UM_LAZY) {
662 xbt_heap_free(network_model->model_private->action_heap);
663 xbt_swag_free(network_model->model_private->modified_set);
666 surf_model_exit(network_model);
667 network_model = NULL;
669 xbt_dict_free(&gap_lookup);
670 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_homogeneous(NULL);
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_boolean(_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->type = SURF_MODEL_TYPE_NETWORK;
767 surf_network_model->action_unref = surf_action_unref;
768 surf_network_model->action_cancel = surf_action_cancel;
769 surf_network_model->action_recycle = net_action_recycle;
771 surf_network_model->get_remains = surf_action_get_remains;
773 #ifdef HAVE_LATENCY_BOUND_TRACKING
774 surf_network_model->get_latency_limited = net_get_link_latency_limited;
777 surf_network_model->set_category = surf_action_set_category;
780 surf_network_model->model_private->resource_used = net_resource_used;
781 if (surf_network_model->model_private->update_mechanism == UM_LAZY) {
782 surf_network_model->model_private->share_resources =
783 net_share_resources_lazy;
784 surf_network_model->model_private->update_actions_state =
785 net_update_actions_state_lazy;
786 } else if (surf_network_model->model_private->update_mechanism == UM_FULL) {
787 surf_network_model->model_private->share_resources =
788 net_share_resources_full;
789 surf_network_model->model_private->update_actions_state =
790 net_update_actions_state_full;
793 surf_network_model->model_private->update_resource_state =
794 net_update_resource_state;
795 surf_network_model->model_private->finalize = net_finalize;
797 surf_network_model->suspend = surf_action_suspend;
798 surf_network_model->resume = surf_action_resume;
799 surf_network_model->is_suspended = surf_action_is_suspended;
801 xbt_assert(surf_cpu_model_pm);
802 xbt_assert(surf_cpu_model_vm);
803 surf_cpu_model_pm->set_max_duration = surf_action_set_max_duration;
804 surf_cpu_model_vm->set_max_duration = surf_action_set_max_duration;
806 surf_network_model->extension.network.communicate = net_communicate;
807 surf_network_model->extension.network.get_route = net_get_route;
808 surf_network_model->extension.network.get_link_bandwidth =
809 net_get_link_bandwidth;
810 surf_network_model->extension.network.get_link_latency =
811 net_get_link_latency;
812 surf_network_model->extension.network.link_shared = net_link_shared;
813 surf_network_model->extension.network.add_traces = net_add_traces;
815 if (!surf_network_model->model_private->maxmin_system)
816 surf_network_model->model_private->maxmin_system = lmm_system_new(surf_network_model->model_private->selective_update);
818 routing_model_create(net_create_resource("__loopback__",
819 498000000, NULL, 0.000015, NULL,
820 SURF_RESOURCE_ON, NULL,
821 SURF_LINK_FATPIPE, NULL));
823 if (surf_network_model->model_private->update_mechanism == UM_LAZY) {
824 surf_network_model->model_private->action_heap = xbt_heap_new(8, NULL);
825 xbt_heap_set_update_callback(surf_network_model->model_private->action_heap,
826 surf_action_lmm_update_index_heap);
827 surf_network_model->model_private->modified_set =
828 xbt_swag_new(xbt_swag_offset(comm, generic_lmm_action.action_list_hookup));
829 surf_network_model->model_private->maxmin_system->keep_track = surf_network_model->model_private->modified_set;
832 surf_network_model->gap_remove = NULL;
835 /************************************************************************/
836 /* New model based on LV08 and experimental results of MPI ping-pongs */
837 /************************************************************************/
838 /* @Inproceedings{smpi_ipdps, */
839 /* author={Pierre-Nicolas Clauss and Mark Stillwell and Stéphane Genaud and Frédéric Suter and Henri Casanova and Martin Quinson}, */
840 /* title={Single Node On-Line Simulation of {MPI} Applications with SMPI}, */
841 /* booktitle={25th IEEE International Parallel and Distributed Processing Symposium (IPDPS'11)}, */
842 /* address={Anchorage (Alaska) USA}, */
846 void surf_network_model_init_SMPI(void)
849 if (surf_network_model)
852 surf_network_model_init_internal();
853 latency_factor_callback = &smpi_latency_factor;
854 bandwidth_factor_callback = &smpi_bandwidth_factor;
855 bandwidth_constraint_callback = &smpi_bandwidth_constraint;
856 gap_append = &smpi_gap_append;
857 surf_network_model->gap_remove = &smpi_gap_remove;
858 net_define_callbacks();
859 xbt_dynar_push(model_list, &surf_network_model);
860 network_solve = lmm_solve;
862 xbt_cfg_setdefault_double(_sg_cfg_set, "network/sender_gap", 10e-6);
863 xbt_cfg_setdefault_double(_sg_cfg_set, "network/weight_S", 8775);
866 /************************************************************************/
867 /* New model based on optimizations discussed during Pedro Velho's thesis*/
868 /************************************************************************/
869 /* @techreport{VELHO:2011:HAL-00646896:1, */
870 /* url = {http://hal.inria.fr/hal-00646896/en/}, */
871 /* title = {{Flow-level network models: have we reached the limits?}}, */
872 /* author = {Velho, Pedro and Schnorr, Lucas and Casanova, Henri and Legrand, Arnaud}, */
873 /* type = {Rapport de recherche}, */
874 /* institution = {INRIA}, */
875 /* number = {RR-7821}, */
878 /* pdf = {http://hal.inria.fr/hal-00646896/PDF/rr-validity.pdf}, */
880 void surf_network_model_init_LegrandVelho(void)
882 if (surf_network_model)
885 surf_network_model_init_internal();
886 net_define_callbacks();
887 xbt_dynar_push(model_list, &surf_network_model);
888 network_solve = lmm_solve;
890 xbt_cfg_setdefault_double(_sg_cfg_set, "network/latency_factor",
892 xbt_cfg_setdefault_double(_sg_cfg_set, "network/bandwidth_factor",
894 xbt_cfg_setdefault_double(_sg_cfg_set, "network/weight_S", 20537);
897 /***************************************************************************/
898 /* The nice TCP sharing model designed by Loris Marchal and Henri Casanova */
899 /***************************************************************************/
900 /* @TechReport{ rr-lip2002-40, */
901 /* author = {Henri Casanova and Loris Marchal}, */
902 /* institution = {LIP}, */
903 /* title = {A Network Model for Simulation of Grid Application}, */
904 /* number = {2002-40}, */
908 void surf_network_model_init_CM02(void)
911 if (surf_network_model)
914 surf_network_model_init_internal();
915 net_define_callbacks();
916 xbt_dynar_push(model_list, &surf_network_model);
917 network_solve = lmm_solve;
919 xbt_cfg_setdefault_double(_sg_cfg_set, "network/latency_factor", 1.0);
920 xbt_cfg_setdefault_double(_sg_cfg_set, "network/bandwidth_factor",
922 xbt_cfg_setdefault_double(_sg_cfg_set, "network/weight_S", 0.0);
925 /***************************************************************************/
926 /* The models from Steven H. Low */
927 /***************************************************************************/
928 /* @article{Low03, */
929 /* author={Steven H. Low}, */
930 /* title={A Duality Model of {TCP} and Queue Management Algorithms}, */
932 /* journal={{IEEE/ACM} Transactions on Networking}, */
933 /* volume={11}, number={4}, */
935 void surf_network_model_init_Reno(void)
937 if (surf_network_model)
940 surf_network_model_init_internal();
941 net_define_callbacks();
943 xbt_dynar_push(model_list, &surf_network_model);
944 lmm_set_default_protocol_function(func_reno_f, func_reno_fp,
946 network_solve = lagrange_solve;
948 xbt_cfg_setdefault_double(_sg_cfg_set, "network/latency_factor", 10.4);
949 xbt_cfg_setdefault_double(_sg_cfg_set, "network/bandwidth_factor",
951 xbt_cfg_setdefault_double(_sg_cfg_set, "network/weight_S", 8775);
955 void surf_network_model_init_Reno2(void)
957 if (surf_network_model)
960 surf_network_model_init_internal();
961 net_define_callbacks();
963 xbt_dynar_push(model_list, &surf_network_model);
964 lmm_set_default_protocol_function(func_reno2_f, func_reno2_fp,
966 network_solve = lagrange_solve;
968 xbt_cfg_setdefault_double(_sg_cfg_set, "network/latency_factor", 10.4);
969 xbt_cfg_setdefault_double(_sg_cfg_set, "network/bandwidth_factor",
971 xbt_cfg_setdefault_double(_sg_cfg_set, "network/weight_S_parameter",
975 void surf_network_model_init_Vegas(void)
977 if (surf_network_model)
980 surf_network_model_init_internal();
981 net_define_callbacks();
983 xbt_dynar_push(model_list, &surf_network_model);
984 lmm_set_default_protocol_function(func_vegas_f, func_vegas_fp,
986 network_solve = lagrange_solve;
988 xbt_cfg_setdefault_double(_sg_cfg_set, "network/latency_factor", 10.4);
989 xbt_cfg_setdefault_double(_sg_cfg_set, "network/bandwidth_factor",
991 xbt_cfg_setdefault_double(_sg_cfg_set, "network/weight_S", 8775);