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 /**********************/
81 static int factor_cmp(const void *pa, const void *pb)
83 return (((s_smpi_factor_t*)pa)->factor > ((s_smpi_factor_t*)pb)->factor);
87 static xbt_dynar_t parse_factor(const char *smpi_coef_string)
90 unsigned int iter = 0;
92 xbt_dynar_t smpi_factor, radical_elements, radical_elements2 = NULL;
94 smpi_factor = xbt_dynar_new(sizeof(s_smpi_factor_t), NULL);
95 radical_elements = xbt_str_split(smpi_coef_string, ";");
96 xbt_dynar_foreach(radical_elements, iter, value) {
98 radical_elements2 = xbt_str_split(value, ":");
99 if (xbt_dynar_length(radical_elements2) != 2)
100 xbt_die("Malformed radical for smpi factor!");
101 fact.factor = atol(xbt_dynar_get_as(radical_elements2, 0, char *));
102 fact.value = atof(xbt_dynar_get_as(radical_elements2, 1, char *));
103 xbt_dynar_push_as(smpi_factor, s_smpi_factor_t, fact);
104 XBT_DEBUG("smpi_factor:\t%ld : %f", fact.factor, fact.value);
105 xbt_dynar_free(&radical_elements2);
107 xbt_dynar_free(&radical_elements);
109 xbt_dynar_sort(smpi_factor, &factor_cmp);
110 xbt_dynar_foreach(smpi_factor, iter, fact) {
111 XBT_DEBUG("ordered smpi_factor:\t%ld : %f", fact.factor, fact.value);
117 static double smpi_bandwidth_factor(double size)
121 parse_factor(xbt_cfg_get_string(_surf_cfg_set, "smpi/bw_factor"));
123 unsigned int iter = 0;
124 s_smpi_factor_t fact;
126 xbt_dynar_foreach(smpi_bw_factor, iter, fact) {
127 if (size < fact.factor) {
128 XBT_DEBUG("%lf < %ld return %f", size, fact.factor, fact.value);
136 static double smpi_latency_factor(double size)
138 if (!smpi_lat_factor)
140 parse_factor(xbt_cfg_get_string(_surf_cfg_set, "smpi/lat_factor"));
142 unsigned int iter = 0;
143 s_smpi_factor_t fact;
145 xbt_dynar_foreach(smpi_lat_factor, iter, fact) {
146 if (size < fact.factor) {
147 XBT_DEBUG("%lf < %ld return %f", size, fact.factor, fact.value);
156 /**--------- <copy/paste C code snippet in surf/network.c> -----------*/
158 static double smpi_bandwidth_constraint(double rate, double bound,
161 return rate < 0 ? bound : min(bound, rate * smpi_bandwidth_factor(size));
164 static double (*latency_factor_callback) (double) =
165 &constant_latency_factor;
166 static double (*bandwidth_factor_callback) (double) =
167 &constant_bandwidth_factor;
168 static double (*bandwidth_constraint_callback) (double, double, double) =
169 &constant_bandwidth_constraint;
171 static void (*gap_append) (double, const link_CM02_t,
172 surf_action_network_CM02_t) = NULL;
174 static void *net_create_resource(const char *name,
176 tmgr_trace_t bw_trace,
178 tmgr_trace_t lat_trace,
179 e_surf_resource_state_t
181 tmgr_trace_t state_trace,
182 e_surf_link_sharing_policy_t
183 policy, xbt_dict_t properties)
185 link_CM02_t nw_link = (link_CM02_t)
186 surf_resource_lmm_new(sizeof(s_link_CM02_t),
187 surf_network_model, name, properties,
188 surf_network_model->model_private->maxmin_system,
189 sg_bandwidth_factor * bw_initial,
191 state_initial, state_trace,
192 bw_initial, bw_trace);
194 xbt_assert(!xbt_lib_get_or_null(link_lib, name, SURF_LINK_LEVEL),
195 "Link '%s' declared several times in the platform file.",
198 nw_link->lat_current = lat_initial;
201 tmgr_history_add_trace(history, lat_trace, 0.0, 0, nw_link);
203 if (policy == SURF_LINK_FATPIPE)
204 lmm_constraint_shared(nw_link->lmm_resource.constraint);
206 xbt_lib_set(link_lib, name, SURF_LINK_LEVEL, nw_link);
207 XBT_DEBUG("Create link '%s'",name);
212 static void net_parse_link_init(sg_platf_link_cbarg_t link)
214 if (link->policy == SURF_LINK_FULLDUPLEX) {
216 link_id = bprintf("%s_UP", link->id);
217 net_create_resource(link_id,
219 link->bandwidth_trace,
223 link->state_trace, link->policy, link->properties);
225 link_id = bprintf("%s_DOWN", link->id);
226 net_create_resource(link_id,
228 link->bandwidth_trace,
232 link->state_trace, link->policy, link->properties);
235 net_create_resource(link->id,
237 link->bandwidth_trace,
241 link->state_trace, link->policy, link->properties);
245 static void net_add_traces(void)
247 xbt_dict_cursor_t cursor = NULL;
248 char *trace_name, *elm;
250 static int called = 0;
255 /* connect all traces relative to network */
256 xbt_dict_foreach(trace_connect_list_link_avail, cursor, trace_name, elm) {
257 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
258 link_CM02_t link = xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL);
260 xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
263 "Cannot connect trace %s to link %s: trace undefined",
266 link->lmm_resource.state_event =
267 tmgr_history_add_trace(history, trace, 0.0, 0, link);
270 xbt_dict_foreach(trace_connect_list_bandwidth, cursor, trace_name, elm) {
271 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
272 link_CM02_t link = xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL);
274 xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
277 "Cannot connect trace %s to link %s: trace undefined",
280 link->lmm_resource.power.event =
281 tmgr_history_add_trace(history, trace, 0.0, 0, link);
284 xbt_dict_foreach(trace_connect_list_latency, cursor, trace_name, elm) {
285 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
286 link_CM02_t link = xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL);
288 xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
291 "Cannot connect trace %s to link %s: trace undefined",
294 link->lat_event = tmgr_history_add_trace(history, trace, 0.0, 0, link);
298 static void net_define_callbacks(void)
300 /* Figuring out the network links */
301 sg_platf_link_add_cb(net_parse_link_init);
302 sg_platf_postparse_add_cb(net_add_traces);
305 static int net_resource_used(void *resource_id)
307 return lmm_constraint_used(surf_network_model->model_private->maxmin_system, ((surf_resource_lmm_t)
312 void net_action_recycle(surf_action_t action)
317 #ifdef HAVE_LATENCY_BOUND_TRACKING
318 int net_get_link_latency_limited(surf_action_t action)
320 return action->latency_limited;
324 static double net_share_resources_full(double now)
326 s_surf_action_lmm_t s_action;
327 surf_action_network_CM02_t action = NULL;
328 xbt_swag_t running_actions =
329 surf_network_model->states.running_action_set;
332 min = generic_maxmin_share_resources(running_actions,
333 xbt_swag_offset(s_action,
335 surf_network_model->model_private->maxmin_system,
338 #define VARIABLE(action) (*((lmm_variable_t*)(((char *) (action)) + xbt_swag_offset(s_action, variable) )))
340 xbt_swag_foreach(action, running_actions) {
341 #ifdef HAVE_LATENCY_BOUND_TRACKING
342 if (lmm_is_variable_limited_by_latency(GENERIC_LMM_ACTION(action).variable)) {
343 action->latency_limited = 1;
345 action->latency_limited = 0;
348 if (action->latency > 0) {
349 min = (min < 0) ? action->latency : min(min, action->latency);
353 XBT_DEBUG("Min of share resources %f", min);
358 static double net_share_resources_lazy(double now)
360 return generic_share_resources_lazy(now, surf_network_model);
363 static void net_update_actions_state_full(double now, double delta)
365 generic_update_actions_state_full(now, delta, surf_network_model);
368 static void net_update_actions_state_lazy(double now, double delta)
370 generic_update_actions_state_lazy(now, delta, surf_network_model);
373 static void net_update_resource_state(void *id,
374 tmgr_trace_event_t event_type,
375 double value, double date)
377 link_CM02_t nw_link = id;
378 /* printf("[" "%lg" "] Asking to update network card \"%s\" with value " */
379 /* "%lg" " for event %p\n", surf_get_clock(), nw_link->name, */
380 /* value, event_type); */
382 if (event_type == nw_link->lmm_resource.power.event) {
384 sg_weight_S_parameter / value - sg_weight_S_parameter /
385 (nw_link->lmm_resource.power.peak *
386 nw_link->lmm_resource.power.scale);
387 lmm_variable_t var = NULL;
388 lmm_element_t elem = NULL;
389 surf_action_network_CM02_t action = NULL;
391 nw_link->lmm_resource.power.peak = value;
392 lmm_update_constraint_bound(surf_network_model->model_private->maxmin_system,
393 nw_link->lmm_resource.constraint,
394 sg_bandwidth_factor *
395 (nw_link->lmm_resource.power.peak *
396 nw_link->lmm_resource.power.scale));
398 TRACE_surf_link_set_bandwidth(date,
400 *) (((nw_link->lmm_resource).
401 generic_resource).name),
402 sg_bandwidth_factor *
403 (nw_link->lmm_resource.power.peak *
404 nw_link->lmm_resource.power.scale));
406 if (sg_weight_S_parameter > 0) {
407 while ((var = lmm_get_var_from_cnst
408 (surf_network_model->model_private->maxmin_system, nw_link->lmm_resource.constraint,
410 action = lmm_variable_id(var);
411 action->weight += delta;
412 if (!(GENERIC_LMM_ACTION(action).suspended))
413 lmm_update_variable_weight(surf_network_model->model_private->maxmin_system,
414 GENERIC_LMM_ACTION(action).variable, action->weight);
417 if (tmgr_trace_event_free(event_type))
418 nw_link->lmm_resource.power.event = NULL;
419 } else if (event_type == nw_link->lat_event) {
420 double delta = value - nw_link->lat_current;
421 lmm_variable_t var = NULL;
422 lmm_element_t elem = NULL;
423 surf_action_network_CM02_t action = NULL;
425 nw_link->lat_current = value;
426 while ((var = lmm_get_var_from_cnst
427 (surf_network_model->model_private->maxmin_system, nw_link->lmm_resource.constraint,
429 action = lmm_variable_id(var);
430 action->lat_current += delta;
431 action->weight += delta;
432 if (action->rate < 0)
433 lmm_update_variable_bound(surf_network_model->model_private->maxmin_system, GENERIC_LMM_ACTION(action).variable,
434 sg_tcp_gamma / (2.0 *
435 action->lat_current));
437 lmm_update_variable_bound(surf_network_model->model_private->maxmin_system, GENERIC_LMM_ACTION(action).variable,
439 sg_tcp_gamma / (2.0 *
443 if (action->rate < sg_tcp_gamma / (2.0 * action->lat_current)) {
444 XBT_INFO("Flow is limited BYBANDWIDTH");
446 XBT_INFO("Flow is limited BYLATENCY, latency of flow is %f",
447 action->lat_current);
450 if (!(GENERIC_LMM_ACTION(action).suspended))
451 lmm_update_variable_weight(surf_network_model->model_private->maxmin_system, GENERIC_LMM_ACTION(action).variable,
455 if (tmgr_trace_event_free(event_type))
456 nw_link->lat_event = NULL;
457 } else if (event_type == nw_link->lmm_resource.state_event) {
459 nw_link->lmm_resource.state_current = SURF_RESOURCE_ON;
461 lmm_constraint_t cnst = nw_link->lmm_resource.constraint;
462 lmm_variable_t var = NULL;
463 lmm_element_t elem = NULL;
465 nw_link->lmm_resource.state_current = SURF_RESOURCE_OFF;
466 while ((var = lmm_get_var_from_cnst
467 (surf_network_model->model_private->maxmin_system, cnst, &elem))) {
468 surf_action_t action = lmm_variable_id(var);
470 if (surf_action_state_get(action) == SURF_ACTION_RUNNING ||
471 surf_action_state_get(action) == SURF_ACTION_READY) {
472 action->finish = date;
473 surf_network_model->action_state_set(action, SURF_ACTION_FAILED);
477 if (tmgr_trace_event_free(event_type))
478 nw_link->lmm_resource.state_event = NULL;
480 XBT_CRITICAL("Unknown event ! \n");
485 ("There were a resource state event, need to update actions related to the constraint (%p)",
486 nw_link->lmm_resource.constraint);
491 static surf_action_t net_communicate(sg_routing_edge_t src,
492 sg_routing_edge_t dst,
493 double size, double rate)
498 surf_action_network_CM02_t action = NULL;
499 double bandwidth_bound;
500 double latency = 0.0;
501 xbt_dynar_t back_route = NULL;
502 int constraints_per_variable = 0;
504 xbt_dynar_t route = xbt_dynar_new(sizeof(sg_routing_link_t), NULL);
506 XBT_IN("(%s,%s,%g,%g)", src->name, dst->name, size, rate);
508 routing_get_route_and_latency(src, dst, &route, &latency);
509 xbt_assert(!xbt_dynar_is_empty(route) || latency,
510 "You're trying to send data from %s to %s but there is no connection at all between these two hosts.",
511 src->name, dst->name);
513 xbt_dynar_foreach(route, i, link) {
514 if (link->lmm_resource.state_current == SURF_RESOURCE_OFF) {
519 if (sg_network_crosstraffic == 1) {
520 routing_get_route_and_latency(dst, src, &back_route, NULL);
521 xbt_dynar_foreach(back_route, i, link) {
522 if (link->lmm_resource.state_current == SURF_RESOURCE_OFF) {
530 surf_action_new(sizeof(s_surf_action_network_CM02_t), size,
531 surf_network_model, failed);
532 #ifdef HAVE_LATENCY_BOUND_TRACKING
533 action->latency_limited = 0;
535 action->weight = action->latency = latency;
537 xbt_swag_insert(action, ((surf_action_t)action)->state_set);
539 if (surf_network_model->model_private->update_mechanism == UM_LAZY) {
540 GENERIC_LMM_ACTION(action).index_heap = -1;
541 GENERIC_LMM_ACTION(action).last_update = surf_get_clock();
544 bandwidth_bound = -1.0;
545 if (sg_weight_S_parameter > 0) {
546 xbt_dynar_foreach(route, i, link) {
548 sg_weight_S_parameter /
549 (link->lmm_resource.power.peak * link->lmm_resource.power.scale);
552 xbt_dynar_foreach(route, i, link) {
553 double bb = bandwidth_factor_callback(size) *
554 (link->lmm_resource.power.peak * link->lmm_resource.power.scale);
556 (bandwidth_bound < 0.0) ? bb : min(bandwidth_bound, bb);
559 action->lat_current = action->latency;
560 action->latency *= latency_factor_callback(size);
562 bandwidth_constraint_callback(action->rate, bandwidth_bound, size);
564 xbt_assert(!xbt_dynar_is_empty(route),
565 "Using a model with a gap (e.g., SMPI) with a platform without links (e.g. vivaldi)!!!");
567 link = *(link_CM02_t *) xbt_dynar_get_ptr(route, 0);
568 gap_append(size, link, action);
569 XBT_DEBUG("Comm %p: %s -> %s gap=%f (lat=%f)",
570 action, src->name, dst->name, action->sender.gap,
574 constraints_per_variable = xbt_dynar_length(route);
575 if (back_route != NULL)
576 constraints_per_variable += xbt_dynar_length(back_route);
578 if (action->latency > 0) {
579 GENERIC_LMM_ACTION(action).variable =
580 lmm_variable_new(surf_network_model->model_private->maxmin_system, action, 0.0, -1.0,
581 constraints_per_variable);
582 if (surf_network_model->model_private->update_mechanism == UM_LAZY) {
583 // add to the heap the event when the latency is payed
584 XBT_DEBUG("Added action (%p) one latency event at date %f", action,
585 action->latency + GENERIC_LMM_ACTION(action).last_update);
586 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,
587 xbt_dynar_is_empty(route) ? NORMAL : LATENCY);
590 GENERIC_LMM_ACTION(action).variable =
591 lmm_variable_new(surf_network_model->model_private->maxmin_system, action, 1.0, -1.0,
592 constraints_per_variable);
594 if (action->rate < 0) {
595 lmm_update_variable_bound(surf_network_model->model_private->maxmin_system, GENERIC_LMM_ACTION(action).variable,
596 (action->lat_current > 0) ?
597 sg_tcp_gamma / (2.0 *
598 action->lat_current) : -1.0);
600 lmm_update_variable_bound(surf_network_model->model_private->maxmin_system, GENERIC_LMM_ACTION(action).variable,
601 (action->lat_current > 0) ?
603 sg_tcp_gamma / (2.0 *
604 action->lat_current))
608 xbt_dynar_foreach(route, i, link) {
609 lmm_expand(surf_network_model->model_private->maxmin_system, link->lmm_resource.constraint,
610 GENERIC_LMM_ACTION(action).variable, 1.0);
613 if (sg_network_crosstraffic == 1) {
614 XBT_DEBUG("Fullduplex active adding backward flow using 5%%");
615 xbt_dynar_foreach(back_route, i, link) {
616 lmm_expand(surf_network_model->model_private->maxmin_system, link->lmm_resource.constraint,
617 GENERIC_LMM_ACTION(action).variable, .05);
621 xbt_dynar_free(&route);
624 return (surf_action_t) action;
627 static xbt_dynar_t net_get_route(void *src, void *dst)
629 xbt_dynar_t route = NULL;
630 routing_get_route_and_latency(src, dst, &route, NULL);
634 static double net_get_link_bandwidth(const void *link)
636 surf_resource_lmm_t lmm = (surf_resource_lmm_t) link;
637 return lmm->power.peak * lmm->power.scale;
640 static double net_get_link_latency(const void *link)
642 return ((link_CM02_t) link)->lat_current;
645 static int net_link_shared(const void *link)
648 lmm_constraint_is_shared(((surf_resource_lmm_t) link)->constraint);
651 static void net_finalize(void)
653 lmm_system_free(surf_network_model->model_private->maxmin_system);
654 surf_network_model->model_private->maxmin_system = NULL;
656 if (surf_network_model->model_private->update_mechanism == UM_LAZY) {
657 xbt_heap_free(surf_network_model->model_private->action_heap);
658 xbt_swag_free(surf_network_model->model_private->modified_set);
661 surf_model_exit(surf_network_model);
662 surf_network_model = NULL;
665 xbt_dynar_free(&smpi_bw_factor);
667 xbt_dynar_free(&smpi_lat_factor);
670 static void smpi_gap_append(double size, const link_CM02_t link,
671 surf_action_network_CM02_t action)
673 const char *src = link->lmm_resource.generic_resource.name;
675 surf_action_network_CM02_t last_action;
678 if (sg_sender_gap > 0.0) {
680 gap_lookup = xbt_dict_new();
682 fifo = (xbt_fifo_t) xbt_dict_get_or_null(gap_lookup, src);
683 action->sender.gap = 0.0;
684 if (fifo && xbt_fifo_size(fifo) > 0) {
685 /* Compute gap from last send */
687 (surf_action_network_CM02_t)
688 xbt_fifo_get_item_content(xbt_fifo_get_last_item(fifo));
689 bw = net_get_link_bandwidth(link);
691 max(sg_sender_gap,last_action->sender.size / bw);
692 action->latency += action->sender.gap;
694 /* Append action as last send */
695 action->sender.link_name = link->lmm_resource.generic_resource.name;
697 (xbt_fifo_t) xbt_dict_get_or_null(gap_lookup,
698 action->sender.link_name);
700 fifo = xbt_fifo_new();
701 xbt_dict_set(gap_lookup, action->sender.link_name, fifo, NULL);
703 action->sender.fifo_item = xbt_fifo_push(fifo, action);
704 action->sender.size = size;
708 static void smpi_gap_remove(surf_action_lmm_t lmm_action)
712 surf_action_network_CM02_t action = (surf_action_network_CM02_t)(lmm_action);
714 if (sg_sender_gap > 0.0 && action->sender.link_name
715 && action->sender.fifo_item) {
717 (xbt_fifo_t) xbt_dict_get_or_null(gap_lookup,
718 action->sender.link_name);
719 xbt_fifo_remove_item(fifo, action->sender.fifo_item);
720 size = xbt_fifo_size(fifo);
723 xbt_dict_remove(gap_lookup, action->sender.link_name);
724 size = xbt_dict_length(gap_lookup);
726 xbt_dict_free(&gap_lookup);
732 static void set_update_mechanism(void)
734 char *optim = xbt_cfg_get_string(_surf_cfg_set, "network/optim");
736 xbt_cfg_get_int(_surf_cfg_set, "network/maxmin_selective_update");
738 if (!strcmp(optim, "Full")) {
739 surf_network_model->model_private->update_mechanism = UM_FULL;
740 surf_network_model->model_private->selective_update = select;
741 } else if (!strcmp(optim, "Lazy")) {
742 surf_network_model->model_private->update_mechanism = UM_LAZY;
743 surf_network_model->model_private->selective_update = 1;
744 xbt_assert((select == 1)
746 (xbt_cfg_is_default_value
747 (_surf_cfg_set, "network/maxmin_selective_update")),
748 "Disabling selective update while using the lazy update mechanism is dumb!");
750 xbt_die("Unsupported optimization (%s) for this model", optim);
754 static void surf_network_model_init_internal(void)
756 s_surf_action_network_CM02_t comm;
757 surf_network_model = surf_model_init();
759 set_update_mechanism();
761 surf_network_model->name = "network";
762 surf_network_model->action_unref = surf_action_unref;
763 surf_network_model->action_cancel = surf_action_cancel;
764 surf_network_model->action_recycle = net_action_recycle;
766 surf_network_model->get_remains = surf_action_get_remains;
768 #ifdef HAVE_LATENCY_BOUND_TRACKING
769 surf_network_model->get_latency_limited = net_get_link_latency_limited;
772 surf_network_model->set_category = surf_action_set_category;
775 surf_network_model->model_private->resource_used = net_resource_used;
776 if (surf_network_model->model_private->update_mechanism == UM_LAZY) {
777 surf_network_model->model_private->share_resources =
778 net_share_resources_lazy;
779 surf_network_model->model_private->update_actions_state =
780 net_update_actions_state_lazy;
781 } else if (surf_network_model->model_private->update_mechanism == UM_FULL) {
782 surf_network_model->model_private->share_resources =
783 net_share_resources_full;
784 surf_network_model->model_private->update_actions_state =
785 net_update_actions_state_full;
788 surf_network_model->model_private->update_resource_state =
789 net_update_resource_state;
790 surf_network_model->model_private->finalize = net_finalize;
792 surf_network_model->suspend = surf_action_suspend;
793 surf_network_model->resume = surf_action_resume;
794 surf_network_model->is_suspended = surf_action_is_suspended;
795 surf_cpu_model->set_max_duration = surf_action_set_max_duration;
797 surf_network_model->extension.network.communicate = net_communicate;
798 surf_network_model->extension.network.get_route = net_get_route;
799 surf_network_model->extension.network.get_link_bandwidth =
800 net_get_link_bandwidth;
801 surf_network_model->extension.network.get_link_latency =
802 net_get_link_latency;
803 surf_network_model->extension.network.link_shared = net_link_shared;
804 surf_network_model->extension.network.add_traces = net_add_traces;
805 surf_network_model->extension.network.create_resource =
808 if (!surf_network_model->model_private->maxmin_system)
809 surf_network_model->model_private->maxmin_system = lmm_system_new(surf_network_model->model_private->selective_update);
811 routing_model_create(net_create_resource("__loopback__",
812 498000000, NULL, 0.000015, NULL,
813 SURF_RESOURCE_ON, NULL,
814 SURF_LINK_FATPIPE, NULL));
816 if (surf_network_model->model_private->update_mechanism == UM_LAZY) {
817 surf_network_model->model_private->action_heap = xbt_heap_new(8, NULL);
818 xbt_heap_set_update_callback(surf_network_model->model_private->action_heap,
819 surf_action_lmm_update_index_heap);
820 surf_network_model->model_private->modified_set =
821 xbt_swag_new(xbt_swag_offset(comm, generic_lmm_action.action_list_hookup));
822 surf_network_model->model_private->maxmin_system->keep_track = surf_network_model->model_private->modified_set;
825 surf_network_model->gap_remove = NULL;
828 /************************************************************************/
829 /* New model based on LV08 and experimental results of MPI ping-pongs */
830 /************************************************************************/
831 /* @Inproceedings{smpi_ipdps, */
832 /* author={Pierre-Nicolas Clauss and Mark Stillwell and Stéphane Genaud and Frédéric Suter and Henri Casanova and Martin Quinson}, */
833 /* title={Single Node On-Line Simulation of {MPI} Applications with SMPI}, */
834 /* booktitle={25th IEEE International Parallel and Distributed Processing Symposium (IPDPS'11)}, */
835 /* address={Anchorage (Alaska) USA}, */
839 void surf_network_model_init_SMPI(void)
842 if (surf_network_model)
845 surf_network_model_init_internal();
846 latency_factor_callback = &smpi_latency_factor;
847 bandwidth_factor_callback = &smpi_bandwidth_factor;
848 bandwidth_constraint_callback = &smpi_bandwidth_constraint;
849 gap_append = &smpi_gap_append;
850 surf_network_model->gap_remove = &smpi_gap_remove;
851 net_define_callbacks();
852 xbt_dynar_push(model_list, &surf_network_model);
853 network_solve = lmm_solve;
855 xbt_cfg_setdefault_double(_surf_cfg_set, "network/sender_gap", 10e-6);
856 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 8775);
859 /************************************************************************/
860 /* New model based on optimizations discussed during Pedro Velho's thesis*/
861 /************************************************************************/
862 /* @techreport{VELHO:2011:HAL-00646896:1, */
863 /* url = {http://hal.inria.fr/hal-00646896/en/}, */
864 /* title = {{Flow-level network models: have we reached the limits?}}, */
865 /* author = {Velho, Pedro and Schnorr, Lucas and Casanova, Henri and Legrand, Arnaud}, */
866 /* type = {Rapport de recherche}, */
867 /* institution = {INRIA}, */
868 /* number = {RR-7821}, */
871 /* pdf = {http://hal.inria.fr/hal-00646896/PDF/rr-validity.pdf}, */
873 void surf_network_model_init_LegrandVelho(void)
875 if (surf_network_model)
878 surf_network_model_init_internal();
879 net_define_callbacks();
880 xbt_dynar_push(model_list, &surf_network_model);
881 network_solve = lmm_solve;
883 xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor",
885 xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
887 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 20537);
890 /***************************************************************************/
891 /* The nice TCP sharing model designed by Loris Marchal and Henri Casanova */
892 /***************************************************************************/
893 /* @TechReport{ rr-lip2002-40, */
894 /* author = {Henri Casanova and Loris Marchal}, */
895 /* institution = {LIP}, */
896 /* title = {A Network Model for Simulation of Grid Application}, */
897 /* number = {2002-40}, */
901 void surf_network_model_init_CM02(void)
904 if (surf_network_model)
907 surf_network_model_init_internal();
908 net_define_callbacks();
909 xbt_dynar_push(model_list, &surf_network_model);
910 network_solve = lmm_solve;
912 xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor", 1.0);
913 xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
915 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 0.0);
918 /***************************************************************************/
919 /* The models from Steven H. Low */
920 /***************************************************************************/
921 /* @article{Low03, */
922 /* author={Steven H. Low}, */
923 /* title={A Duality Model of {TCP} and Queue Management Algorithms}, */
925 /* journal={{IEEE/ACM} Transactions on Networking}, */
926 /* volume={11}, number={4}, */
928 void surf_network_model_init_Reno(void)
930 if (surf_network_model)
933 surf_network_model_init_internal();
934 net_define_callbacks();
936 xbt_dynar_push(model_list, &surf_network_model);
937 lmm_set_default_protocol_function(func_reno_f, func_reno_fp,
939 network_solve = lagrange_solve;
941 xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor", 10.4);
942 xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
944 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 8775);
948 void surf_network_model_init_Reno2(void)
950 if (surf_network_model)
953 surf_network_model_init_internal();
954 net_define_callbacks();
956 xbt_dynar_push(model_list, &surf_network_model);
957 lmm_set_default_protocol_function(func_reno2_f, func_reno2_fp,
959 network_solve = lagrange_solve;
961 xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor", 10.4);
962 xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
964 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S_parameter",
968 void surf_network_model_init_Vegas(void)
970 if (surf_network_model)
973 surf_network_model_init_internal();
974 net_define_callbacks();
976 xbt_dynar_push(model_list, &surf_network_model);
977 lmm_set_default_protocol_function(func_vegas_f, func_vegas_fp,
979 network_solve = lagrange_solve;
981 xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor", 10.4);
982 xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
984 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 8775);