3 /* Copyright (c) 2004 Arnaud Legrand. All rights reserved. */
5 /* This program is free software; you can redistribute it and/or modify it
6 * under the terms of the license (GNU LGPL) which comes with this package. */
8 #include "network_private.h"
11 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_network, surf,
12 "Logging specific to the SURF network module");
14 surf_network_model_t surf_network_model = NULL;
15 static lmm_system_t network_maxmin_system = NULL;
16 static void (*network_solve) (lmm_system_t) = NULL;
18 xbt_dict_t network_link_set = NULL;
19 xbt_dict_t network_card_set = NULL;
22 network_link_CM02_t **routing_table = NULL;
23 int *routing_table_size = NULL;
24 static network_link_CM02_t loopback = NULL;
26 static void create_routing_table(void)
29 xbt_new0(network_link_CM02_t *, card_number * card_number);
30 routing_table_size = xbt_new0(int, card_number * card_number);
33 static void network_link_free(void *nw_link)
35 free(((network_link_CM02_t) nw_link)->name);
39 static network_link_CM02_t network_link_new(char *name,
41 tmgr_trace_t bw_trace,
43 tmgr_trace_t lat_trace,
44 e_surf_network_link_state_t
46 tmgr_trace_t state_trace,
47 e_surf_network_link_sharing_policy_t
50 network_link_CM02_t nw_link = xbt_new0(s_network_link_CM02_t, 1);
53 nw_link->model = (surf_model_t) surf_network_model;
55 nw_link->bw_current = bw_initial;
58 tmgr_history_add_trace(history, bw_trace, 0.0, 0, nw_link);
59 nw_link->lat_current = lat_initial;
62 tmgr_history_add_trace(history, lat_trace, 0.0, 0, nw_link);
63 nw_link->state_current = state_initial;
65 nw_link->state_event =
66 tmgr_history_add_trace(history, state_trace, 0.0, 0, nw_link);
69 lmm_constraint_new(network_maxmin_system, nw_link,
72 if (policy == SURF_NETWORK_LINK_FATPIPE)
73 lmm_constraint_shared(nw_link->constraint);
75 xbt_dict_set(network_link_set, name, nw_link, network_link_free);
80 static void network_card_free(void *nw_card)
82 free(((network_card_CM02_t) nw_card)->name);
86 static int network_card_new(const char *card_name)
88 network_card_CM02_t card =
89 xbt_dict_get_or_null(network_card_set, card_name);
92 card = xbt_new0(s_network_card_CM02_t, 1);
93 card->name = xbt_strdup(card_name);
94 card->id = card_number++;
95 xbt_dict_set(network_card_set, card_name, card, network_card_free);
100 static void route_new(int src_id, int dst_id,
101 network_link_CM02_t * link_list, int nb_link)
103 ROUTE_SIZE(src_id, dst_id) = nb_link;
104 ROUTE(src_id, dst_id) = link_list =
105 xbt_realloc(link_list, sizeof(network_link_CM02_t) * nb_link);
108 static void parse_network_link(void)
112 tmgr_trace_t bw_trace;
114 tmgr_trace_t lat_trace;
115 e_surf_network_link_state_t state_initial = SURF_NETWORK_LINK_ON;
116 e_surf_network_link_sharing_policy_t policy_initial =
117 SURF_NETWORK_LINK_SHARED;
118 tmgr_trace_t state_trace;
120 name = xbt_strdup(A_surfxml_network_link_name);
121 surf_parse_get_double(&bw_initial, A_surfxml_network_link_bandwidth);
122 surf_parse_get_trace(&bw_trace, A_surfxml_network_link_bandwidth_file);
123 surf_parse_get_double(&lat_initial, A_surfxml_network_link_latency);
124 surf_parse_get_trace(&lat_trace, A_surfxml_network_link_latency_file);
126 xbt_assert0((A_surfxml_network_link_state ==
127 A_surfxml_network_link_state_ON)
128 || (A_surfxml_network_link_state ==
129 A_surfxml_network_link_state_OFF), "Invalid state");
130 if (A_surfxml_network_link_state == A_surfxml_network_link_state_ON)
131 state_initial = SURF_NETWORK_LINK_ON;
132 else if (A_surfxml_network_link_state ==
133 A_surfxml_network_link_state_OFF)
134 state_initial = SURF_NETWORK_LINK_OFF;
136 if (A_surfxml_network_link_sharing_policy ==
137 A_surfxml_network_link_sharing_policy_SHARED)
138 policy_initial = SURF_NETWORK_LINK_SHARED;
139 else if (A_surfxml_network_link_sharing_policy ==
140 A_surfxml_network_link_sharing_policy_FATPIPE)
141 policy_initial = SURF_NETWORK_LINK_FATPIPE;
143 surf_parse_get_trace(&state_trace, A_surfxml_network_link_state_file);
145 network_link_new(name, bw_initial, bw_trace,
146 lat_initial, lat_trace, state_initial, state_trace,
151 static int link_list_capacity;
152 static network_link_CM02_t *link_list = NULL;
153 static int src_id = -1;
154 static int dst_id = -1;
156 static void parse_route_set_endpoints(void)
158 src_id = network_card_new(A_surfxml_route_src);
159 dst_id = network_card_new(A_surfxml_route_dst);
161 link_list_capacity = 20;
162 link_list = xbt_new(network_link_CM02_t, link_list_capacity);
165 static void parse_route_elem(void)
167 if (nb_link == link_list_capacity) {
168 link_list_capacity *= 2;
170 xbt_realloc(link_list,
171 (link_list_capacity) * sizeof(network_link_CM02_t));
173 link_list[nb_link++] =
174 xbt_dict_get_or_null(network_link_set, A_surfxml_route_element_name);
177 static void parse_route_set_route(void)
179 route_new(src_id, dst_id, link_list, nb_link);
182 static void parse_file(const char *file)
186 /* Figuring out the network links */
187 surf_parse_reset_parser();
188 ETag_surfxml_network_link_fun = parse_network_link;
189 surf_parse_open(file);
190 xbt_assert1((!surf_parse()), "Parse error in %s", file);
193 /* Figuring out the network cards used */
194 surf_parse_reset_parser();
195 STag_surfxml_route_fun = parse_route_set_endpoints;
196 surf_parse_open(file);
197 xbt_assert1((!surf_parse()), "Parse error in %s", file);
200 create_routing_table();
202 /* Building the routes */
203 surf_parse_reset_parser();
204 STag_surfxml_route_fun = parse_route_set_endpoints;
205 ETag_surfxml_route_element_fun = parse_route_elem;
206 ETag_surfxml_route_fun = parse_route_set_route;
207 surf_parse_open(file);
208 xbt_assert1((!surf_parse()), "Parse error in %s", file);
211 /* Adding loopback if needed */
213 for (i = 0; i < card_number; i++)
214 if (!ROUTE_SIZE(i, i)) {
216 loopback = network_link_new(xbt_strdup("__MSG_loopback__"),
217 498000000, NULL, 0.000015, NULL,
218 SURF_NETWORK_LINK_ON, NULL,
219 SURF_NETWORK_LINK_FATPIPE);
220 ROUTE_SIZE(i, i) = 1;
221 ROUTE(i, i) = xbt_new0(network_link_CM02_t, 1);
222 ROUTE(i, i)[0] = loopback;
226 static void *name_service(const char *name)
228 network_card_CM02_t card = xbt_dict_get_or_null(network_card_set, name);
232 static const char *get_resource_name(void *resource_id)
234 return ((network_card_CM02_t) resource_id)->name;
237 static int resource_used(void *resource_id)
239 return lmm_constraint_used(network_maxmin_system,
240 ((network_link_CM02_t) resource_id)->
244 static int action_free(surf_action_t action)
247 if (!action->using) {
248 xbt_swag_remove(action, action->state_set);
249 if (((surf_action_network_CM02_t) action)->variable)
250 lmm_variable_free(network_maxmin_system,
251 ((surf_action_network_CM02_t) action)->variable);
258 static void action_use(surf_action_t action)
263 static void action_cancel(surf_action_t action)
268 static void action_recycle(surf_action_t action)
273 static void action_change_state(surf_action_t action,
274 e_surf_action_state_t state)
276 /* if((state==SURF_ACTION_DONE) || (state==SURF_ACTION_FAILED)) */
277 /* if(((surf_action_network_CM02_t)action)->variable) { */
278 /* lmm_variable_disable(network_maxmin_system, ((surf_action_network_CM02_t)action)->variable); */
279 /* ((surf_action_network_CM02_t)action)->variable = NULL; */
282 surf_action_change_state(action, state);
286 static double share_resources(double now)
288 s_surf_action_network_CM02_t s_action;
289 surf_action_network_CM02_t action = NULL;
290 xbt_swag_t running_actions =
291 surf_network_model->common_public->states.running_action_set;
294 min = generic_maxmin_share_resources2(running_actions,
295 xbt_swag_offset(s_action,
297 network_maxmin_system,
300 xbt_swag_foreach(action, running_actions) {
301 if (action->latency > 0) {
303 min = action->latency;
304 else if (action->latency < min)
305 min = action->latency;
312 static void update_actions_state(double now, double delta)
315 surf_action_network_CM02_t action = NULL;
316 surf_action_network_CM02_t next_action = NULL;
317 xbt_swag_t running_actions =
318 surf_network_model->common_public->states.running_action_set;
320 xbt_swag_t failed_actions =
321 surf_network_model->common_public->states.failed_action_set;
324 xbt_swag_foreach_safe(action, next_action, running_actions) {
326 if (action->latency > 0) {
327 if (action->latency > deltap) {
328 double_update(&(action->latency), deltap);
331 double_update(&(deltap), action->latency);
332 action->latency = 0.0;
334 if ((action->latency == 0.0) && !(action->suspended))
335 lmm_update_variable_weight(network_maxmin_system, action->variable,
336 action->lat_current);
338 double_update(&(action->generic_action.remains),
339 lmm_variable_getvalue(action->variable) * deltap);
340 if (action->generic_action.max_duration != NO_MAX_DURATION)
341 double_update(&(action->generic_action.max_duration), delta);
343 /* if(action->generic_action.remains<.00001) action->generic_action.remains=0; */
345 if ((action->generic_action.remains <= 0) &&
346 (lmm_get_variable_weight(action->variable) > 0)) {
347 action->generic_action.finish = surf_get_clock();
348 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
349 } else if ((action->generic_action.max_duration != NO_MAX_DURATION) &&
350 (action->generic_action.max_duration <= 0)) {
351 action->generic_action.finish = surf_get_clock();
352 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
353 } else { /* Need to check that none of the model has failed */
354 lmm_constraint_t cnst = NULL;
356 network_link_CM02_t nw_link = NULL;
359 lmm_get_cnst_from_var(network_maxmin_system,
360 action->variable, i++))) {
361 nw_link = lmm_constraint_id(cnst);
362 if (nw_link->state_current == SURF_NETWORK_LINK_OFF) {
363 action->generic_action.finish = surf_get_clock();
364 action_change_state((surf_action_t) action, SURF_ACTION_FAILED);
374 static void update_resource_state(void *id,
375 tmgr_trace_event_t event_type,
378 network_link_CM02_t nw_link = id;
379 /* printf("[" "%lg" "] Asking to update network card \"%s\" with value " */
380 /* "%lg" " for event %p\n", surf_get_clock(), nw_link->name, */
381 /* value, event_type); */
383 if (event_type == nw_link->bw_event) {
384 nw_link->bw_current = value;
385 lmm_update_constraint_bound(network_maxmin_system, nw_link->constraint,
386 nw_link->bw_current);
387 } else if (event_type == nw_link->lat_event) {
388 double delta = value - nw_link->lat_current;
389 lmm_variable_t var = NULL;
390 surf_action_network_CM02_t action = NULL;
392 nw_link->lat_current = value;
393 while (lmm_get_var_from_cnst
394 (network_maxmin_system, nw_link->constraint, &var)) {
395 action = lmm_variable_id(var);
396 action->lat_current += delta;
397 if (action->rate < 0)
398 lmm_update_variable_bound(network_maxmin_system, action->variable,
399 SG_TCP_CTE_GAMMA / (2.0 *
403 lmm_update_variable_bound(network_maxmin_system, action->variable,
405 SG_TCP_CTE_GAMMA / (2.0 *
408 if (!(action->suspended))
409 lmm_update_variable_weight(network_maxmin_system, action->variable,
410 action->lat_current);
411 lmm_update_variable_latency(network_maxmin_system, action->variable,
414 } else if (event_type == nw_link->state_event) {
416 nw_link->state_current = SURF_NETWORK_LINK_ON;
418 nw_link->state_current = SURF_NETWORK_LINK_OFF;
420 CRITICAL0("Unknown event ! \n");
427 static surf_action_t communicate(void *src, void *dst, double size,
430 surf_action_network_CM02_t action = NULL;
431 network_card_CM02_t card_src = src;
432 network_card_CM02_t card_dst = dst;
433 int route_size = ROUTE_SIZE(card_src->id, card_dst->id);
434 network_link_CM02_t *route = ROUTE(card_src->id, card_dst->id);
437 XBT_IN4("(%s,%s,%g,%g)", card_src->name, card_dst->name, size, rate);
438 xbt_assert2(route_size,
439 "You're trying to send data from %s to %s but there is no connexion between these two cards.",
440 card_src->name, card_dst->name);
442 action = xbt_new0(s_surf_action_network_CM02_t, 1);
444 action->generic_action.using = 1;
445 action->generic_action.cost = size;
446 action->generic_action.remains = size;
447 action->generic_action.max_duration = NO_MAX_DURATION;
448 action->generic_action.start = surf_get_clock();
449 action->generic_action.finish = -1.0;
450 action->generic_action.model_type =
451 (surf_model_t) surf_network_model;
452 action->suspended = 0; /* Should be useless because of the
453 calloc but it seems to help valgrind... */
454 action->generic_action.state_set =
455 surf_network_model->common_public->states.running_action_set;
457 xbt_swag_insert(action, action->generic_action.state_set);
460 action->latency = 0.0;
461 for (i = 0; i < route_size; i++)
462 action->latency += route[i]->lat_current;
463 action->lat_current = action->latency;
465 if (action->latency > 0)
467 lmm_variable_new(network_maxmin_system, action, 0.0, -1.0,
471 lmm_variable_new(network_maxmin_system, action, 1.0, -1.0,
474 if (action->rate < 0) {
475 if (action->lat_current > 0)
476 lmm_update_variable_bound(network_maxmin_system, action->variable,
477 SG_TCP_CTE_GAMMA / (2.0 *
478 action->lat_current));
480 lmm_update_variable_bound(network_maxmin_system, action->variable,
483 if (action->lat_current > 0)
484 lmm_update_variable_bound(network_maxmin_system, action->variable,
486 SG_TCP_CTE_GAMMA / (2.0 *
490 lmm_update_variable_bound(network_maxmin_system, action->variable,
493 lmm_update_variable_latency(network_maxmin_system, action->variable,
496 for (i = 0; i < route_size; i++)
497 lmm_expand(network_maxmin_system, route[i]->constraint,
498 action->variable, 1.0);
501 return (surf_action_t) action;
504 /* returns an array of network_link_CM02_t */
505 static const void **get_route(void *src, void *dst)
507 network_card_CM02_t card_src = src;
508 network_card_CM02_t card_dst = dst;
509 return (const void **) ROUTE(card_src->id, card_dst->id);
512 static int get_route_size(void *src, void *dst)
514 network_card_CM02_t card_src = src;
515 network_card_CM02_t card_dst = dst;
516 return ROUTE_SIZE(card_src->id, card_dst->id);
519 static const char *get_link_name(const void *link)
521 return ((network_link_CM02_t) link)->name;
524 static double get_link_bandwidth(const void *link)
526 return ((network_link_CM02_t) link)->bw_current;
529 static double get_link_latency(const void *link)
531 return ((network_link_CM02_t) link)->lat_current;
534 static void action_suspend(surf_action_t action)
536 ((surf_action_network_CM02_t) action)->suspended = 1;
537 lmm_update_variable_weight(network_maxmin_system,
538 ((surf_action_network_CM02_t) action)->
542 static void action_resume(surf_action_t action)
544 if (((surf_action_network_CM02_t) action)->suspended) {
545 lmm_update_variable_weight(network_maxmin_system,
546 ((surf_action_network_CM02_t) action)->
548 ((surf_action_network_CM02_t) action)->
550 ((surf_action_network_CM02_t) action)->suspended = 0;
554 static int action_is_suspended(surf_action_t action)
556 return ((surf_action_network_CM02_t) action)->suspended;
559 static void action_set_max_duration(surf_action_t action, double duration)
561 action->max_duration = duration;
564 static void finalize(void)
568 xbt_dict_free(&network_card_set);
569 xbt_dict_free(&network_link_set);
570 xbt_swag_free(surf_network_model->common_public->states.
572 xbt_swag_free(surf_network_model->common_public->states.
574 xbt_swag_free(surf_network_model->common_public->states.
576 xbt_swag_free(surf_network_model->common_public->states.
578 free(surf_network_model->common_public);
579 free(surf_network_model->common_private);
580 free(surf_network_model->extension_public);
582 free(surf_network_model);
583 surf_network_model = NULL;
586 for (i = 0; i < card_number; i++)
587 for (j = 0; j < card_number; j++)
590 routing_table = NULL;
591 free(routing_table_size);
592 routing_table_size = NULL;
596 static void surf_network_model_init_internal(void)
598 s_surf_action_t action;
600 surf_network_model = xbt_new0(s_surf_network_model_t, 1);
602 surf_network_model->common_private =
603 xbt_new0(s_surf_model_private_t, 1);
604 surf_network_model->common_public =
605 xbt_new0(s_surf_model_public_t, 1);
606 surf_network_model->extension_public =
607 xbt_new0(s_surf_network_model_extension_public_t, 1);
609 surf_network_model->common_public->states.ready_action_set =
610 xbt_swag_new(xbt_swag_offset(action, state_hookup));
611 surf_network_model->common_public->states.running_action_set =
612 xbt_swag_new(xbt_swag_offset(action, state_hookup));
613 surf_network_model->common_public->states.failed_action_set =
614 xbt_swag_new(xbt_swag_offset(action, state_hookup));
615 surf_network_model->common_public->states.done_action_set =
616 xbt_swag_new(xbt_swag_offset(action, state_hookup));
618 surf_network_model->common_public->name_service = name_service;
619 surf_network_model->common_public->get_resource_name =
621 surf_network_model->common_public->action_get_state =
622 surf_action_get_state;
623 surf_network_model->common_public->action_get_start_time =
624 surf_action_get_start_time;
625 surf_network_model->common_public->action_get_finish_time =
626 surf_action_get_finish_time;
627 surf_network_model->common_public->action_free = action_free;
628 surf_network_model->common_public->action_use = action_use;
629 surf_network_model->common_public->action_cancel = action_cancel;
630 surf_network_model->common_public->action_recycle = action_recycle;
631 surf_network_model->common_public->action_change_state =
633 surf_network_model->common_public->action_set_data =
634 surf_action_set_data;
635 surf_network_model->common_public->name = "network";
637 surf_network_model->common_private->resource_used = resource_used;
638 surf_network_model->common_private->share_resources = share_resources;
639 surf_network_model->common_private->update_actions_state =
640 update_actions_state;
641 surf_network_model->common_private->update_resource_state =
642 update_resource_state;
643 surf_network_model->common_private->finalize = finalize;
645 surf_network_model->common_public->suspend = action_suspend;
646 surf_network_model->common_public->resume = action_resume;
647 surf_network_model->common_public->is_suspended = action_is_suspended;
648 surf_cpu_model->common_public->set_max_duration =
649 action_set_max_duration;
651 surf_network_model->extension_public->communicate = communicate;
652 surf_network_model->extension_public->get_route = get_route;
653 surf_network_model->extension_public->get_route_size = get_route_size;
654 surf_network_model->extension_public->get_link_name = get_link_name;
655 surf_network_model->extension_public->get_link_bandwidth =
657 surf_network_model->extension_public->get_link_latency =
660 network_link_set = xbt_dict_new();
661 network_card_set = xbt_dict_new();
663 if (!network_maxmin_system)
664 network_maxmin_system = lmm_system_new();
667 /***************************************************************************/
668 /* The nice TCP sharing model designed by Loris Marchal and Henri Casanova */
669 /***************************************************************************/
670 /* @TechReport{ rr-lip2002-40, */
671 /* author = {Henri Casanova and Loris Marchal}, */
672 /* institution = {LIP}, */
673 /* title = {A Network Model for Simulation of Grid Application}, */
674 /* number = {2002-40}, */
678 void surf_network_model_init_CM02(const char *filename)
681 if (surf_network_model)
683 surf_network_model_init_internal();
684 parse_file(filename);
685 xbt_dynar_push(model_list, &surf_network_model);
686 network_solve = lmm_solve;
688 update_model_description(surf_network_model_description,
689 surf_network_model_description_size,
691 (surf_model_t) surf_network_model);
694 void surf_network_model_init_Reno(const char *filename)
696 if (surf_network_model)
698 surf_network_model_init_internal();
699 parse_file(filename);
701 xbt_dynar_push(model_list, &surf_network_model);
702 lmm_set_default_protocol_function(func_reno_f, func_reno_fp,
704 network_solve = lagrange_solve;
706 update_model_description(surf_network_model_description,
707 surf_network_model_description_size,
709 (surf_model_t) surf_network_model);
712 void surf_network_model_init_Vegas(const char *filename)
714 if (surf_network_model)
716 surf_network_model_init_internal();
717 parse_file(filename);
719 xbt_dynar_push(model_list, &surf_network_model);
720 lmm_set_default_protocol_function(func_vegas_f, func_vegas_fp,
722 network_solve = lagrange_solve;
724 update_model_description(surf_network_model_description,
725 surf_network_model_description_size,
727 (surf_model_t) surf_network_model);
731 void surf_network_model_init_SDP(const char *filename)
733 if (surf_network_model)
735 surf_network_model_init_internal();
736 parse_file(filename);
738 xbt_dynar_push(model_list, &surf_network_model);
739 network_solve = sdp_solve;
741 update_model_description(surf_network_model_description,
742 surf_network_model_description_size,
744 (surf_model_t) surf_network_model);