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 link_set = NULL;
19 xbt_dict_t network_card_set = NULL;
22 link_CM02_t **routing_table = NULL;
23 int *routing_table_size = NULL;
24 static link_CM02_t loopback = NULL;
26 static void create_routing_table(void)
29 xbt_new0(link_CM02_t *, card_number * card_number);
30 routing_table_size = xbt_new0(int, card_number * card_number);
33 static void link_free(void *nw_link)
35 free(((link_CM02_t) nw_link)->name);
39 static link_CM02_t link_new(char *name,
41 tmgr_trace_t bw_trace,
43 tmgr_trace_t lat_trace,
46 tmgr_trace_t state_trace,
47 e_surf_link_sharing_policy_t
48 policy, xbt_dict_t properties)
50 link_CM02_t nw_link = xbt_new0(s_link_CM02_t, 1);
51 xbt_assert1(!xbt_dict_get_or_null(link_set, name),
52 "Link '%s' declared several times in the platform file.", name);
54 nw_link->model = (surf_model_t) surf_network_model;
56 nw_link->bw_current = bw_initial;
59 tmgr_history_add_trace(history, bw_trace, 0.0, 0, nw_link);
60 nw_link->lat_current = lat_initial;
63 tmgr_history_add_trace(history, lat_trace, 0.0, 0, nw_link);
64 nw_link->state_current = state_initial;
66 nw_link->state_event =
67 tmgr_history_add_trace(history, state_trace, 0.0, 0, nw_link);
70 lmm_constraint_new(network_maxmin_system, nw_link,
73 if (policy == SURF_LINK_FATPIPE)
74 lmm_constraint_shared(nw_link->constraint);
76 nw_link->properties = properties;
78 current_property_set = properties;
80 xbt_dict_set(link_set, name, nw_link, link_free);
85 static void network_card_free(void *nw_card)
87 free(((network_card_CM02_t) nw_card)->name);
91 static int network_card_new(const char *card_name)
93 network_card_CM02_t card =
94 xbt_dict_get_or_null(network_card_set, card_name);
97 card = xbt_new0(s_network_card_CM02_t, 1);
98 card->name = xbt_strdup(card_name);
99 card->id = card_number++;
100 xbt_dict_set(network_card_set, card_name, card, network_card_free);
105 static void route_new(int src_id, int dst_id,
106 link_CM02_t * link_list, int nb_link)
108 ROUTE_SIZE(src_id, dst_id) = nb_link;
109 ROUTE(src_id, dst_id) = link_list =
110 xbt_realloc(link_list, sizeof(link_CM02_t) * nb_link);
113 static void parse_link_init(void)
117 tmgr_trace_t bw_trace;
119 tmgr_trace_t lat_trace;
120 e_surf_link_state_t state_initial_link = SURF_LINK_ON;
121 e_surf_link_sharing_policy_t policy_initial_link = SURF_LINK_SHARED;
122 tmgr_trace_t state_trace;
124 name_link = xbt_strdup(A_surfxml_link_id);
125 surf_parse_get_double(&bw_initial, A_surfxml_link_bandwidth);
126 surf_parse_get_trace(&bw_trace, A_surfxml_link_bandwidth_file);
127 surf_parse_get_double(&lat_initial, A_surfxml_link_latency);
128 surf_parse_get_trace(&lat_trace, A_surfxml_link_latency_file);
130 xbt_assert0((A_surfxml_link_state ==
131 A_surfxml_link_state_ON)
132 || (A_surfxml_link_state ==
133 A_surfxml_link_state_OFF), "Invalid state");
134 if (A_surfxml_link_state == A_surfxml_link_state_ON)
135 state_initial_link = SURF_LINK_ON;
136 else if (A_surfxml_link_state ==
137 A_surfxml_link_state_OFF)
138 state_initial_link = SURF_LINK_OFF;
140 if (A_surfxml_link_sharing_policy ==
141 A_surfxml_link_sharing_policy_SHARED)
142 policy_initial_link = SURF_LINK_SHARED;
143 else if (A_surfxml_link_sharing_policy ==
144 A_surfxml_link_sharing_policy_FATPIPE)
145 policy_initial_link = SURF_LINK_FATPIPE;
147 surf_parse_get_trace(&state_trace, A_surfxml_link_state_file);
149 link_new(name_link, bw_initial, bw_trace,
150 lat_initial, lat_trace, state_initial_link, state_trace,
151 policy_initial_link, xbt_dict_new());
156 static int link_list_capacity;
157 static link_CM02_t *link_list = NULL;
158 static int src_id = -1;
159 static int dst_id = -1;
161 static void parse_route_set_endpoints(void)
164 src_id = network_card_new(A_surfxml_route_src);
165 dst_id = network_card_new(A_surfxml_route_dst);
167 link_list_capacity = 20;
168 link_list = xbt_new(link_CM02_t, link_list_capacity);
171 static void parse_route_elem(void)
174 if (nb_link == link_list_capacity) {
175 link_list_capacity *= 2;
177 xbt_realloc(link_list,
178 (link_list_capacity) * sizeof(link_CM02_t));
180 link_list[nb_link++] =
181 xbt_dict_get_or_null(link_set, A_surfxml_link_c_ctn_id);
184 static void parse_route_set_route(void)
186 route_new(src_id, dst_id, link_list, nb_link);
189 static void parse_file(const char *file)
192 /* Figuring out the network links */
193 surf_parse_reset_parser();
194 surfxml_add_callback(STag_surfxml_link_cb_list, &parse_link_init);
195 surfxml_add_callback(STag_surfxml_prop_cb_list, &parse_properties);
196 surf_parse_open(file);
197 xbt_assert1((!surf_parse()), "Parse error in %s", file);
200 /* Figuring out the network cards used */
201 surf_parse_reset_parser();
202 surfxml_add_callback(STag_surfxml_route_cb_list, &parse_route_set_endpoints);
203 surf_parse_open(file);
204 xbt_assert1((!surf_parse()), "Parse error in %s", file);
207 create_routing_table();
209 /* Building the routes */
210 surf_parse_reset_parser();
211 surfxml_add_callback(STag_surfxml_route_cb_list, &parse_route_set_endpoints);
212 surfxml_add_callback(ETag_surfxml_link_c_ctn_cb_list, &parse_route_elem);
213 surfxml_add_callback(ETag_surfxml_route_cb_list, &parse_route_set_route);
214 surf_parse_open(file);
215 xbt_assert1((!surf_parse()), "Parse error in %s", file);
218 /* Adding loopback if needed */
220 for (i = 0; i < card_number; i++)
221 if (!ROUTE_SIZE(i, i)) {
223 loopback = link_new(xbt_strdup("__MSG_loopback__"),
224 498000000, NULL, 0.000015, NULL,
226 SURF_LINK_FATPIPE,NULL);
227 ROUTE_SIZE(i, i) = 1;
228 ROUTE(i, i) = xbt_new0(link_CM02_t, 1);
229 ROUTE(i, i)[0] = loopback;
233 static void *name_service(const char *name)
235 network_card_CM02_t card = xbt_dict_get_or_null(network_card_set, name);
239 static const char *get_resource_name(void *resource_id)
241 return ((network_card_CM02_t) resource_id)->name;
244 static int resource_used(void *resource_id)
246 return lmm_constraint_used(network_maxmin_system,
247 ((link_CM02_t) resource_id)->
251 static int action_free(surf_action_t action)
254 if (!action->using) {
255 xbt_swag_remove(action, action->state_set);
256 if (((surf_action_network_CM02_t) action)->variable)
257 lmm_variable_free(network_maxmin_system,
258 ((surf_action_network_CM02_t) action)->variable);
265 static void action_use(surf_action_t action)
270 static void action_cancel(surf_action_t action)
275 static void action_recycle(surf_action_t action)
280 static void action_change_state(surf_action_t action,
281 e_surf_action_state_t state)
283 /* if((state==SURF_ACTION_DONE) || (state==SURF_ACTION_FAILED)) */
284 /* if(((surf_action_network_CM02_t)action)->variable) { */
285 /* lmm_variable_disable(network_maxmin_system, ((surf_action_network_CM02_t)action)->variable); */
286 /* ((surf_action_network_CM02_t)action)->variable = NULL; */
289 surf_action_change_state(action, state);
293 static double share_resources(double now)
295 s_surf_action_network_CM02_t s_action;
296 surf_action_network_CM02_t action = NULL;
297 xbt_swag_t running_actions =
298 surf_network_model->common_public->states.running_action_set;
301 min = generic_maxmin_share_resources(running_actions,
302 xbt_swag_offset(s_action,
304 network_maxmin_system,
307 xbt_swag_foreach(action, running_actions) {
308 if (action->latency > 0) {
310 min = action->latency;
311 else if (action->latency < min)
312 min = action->latency;
319 static void update_actions_state(double now, double delta)
322 surf_action_network_CM02_t action = NULL;
323 surf_action_network_CM02_t next_action = NULL;
324 xbt_swag_t running_actions =
325 surf_network_model->common_public->states.running_action_set;
327 xbt_swag_t failed_actions =
328 surf_network_model->common_public->states.failed_action_set;
331 xbt_swag_foreach_safe(action, next_action, running_actions) {
333 if (action->latency > 0) {
334 if (action->latency > deltap) {
335 double_update(&(action->latency), deltap);
338 double_update(&(deltap), action->latency);
339 action->latency = 0.0;
341 if ((action->latency == 0.0) && !(action->suspended))
342 lmm_update_variable_weight(network_maxmin_system, action->variable,
343 action->lat_current);
345 double_update(&(action->generic_action.remains),
346 lmm_variable_getvalue(action->variable) * deltap);
347 if (action->generic_action.max_duration != NO_MAX_DURATION)
348 double_update(&(action->generic_action.max_duration), delta);
350 /* if(action->generic_action.remains<.00001) action->generic_action.remains=0; */
352 if ((action->generic_action.remains <= 0) &&
353 (lmm_get_variable_weight(action->variable) > 0)) {
354 action->generic_action.finish = surf_get_clock();
355 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
356 } else if ((action->generic_action.max_duration != NO_MAX_DURATION) &&
357 (action->generic_action.max_duration <= 0)) {
358 action->generic_action.finish = surf_get_clock();
359 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
360 } else { /* Need to check that none of the model has failed */
361 lmm_constraint_t cnst = NULL;
363 link_CM02_t nw_link = NULL;
366 lmm_get_cnst_from_var(network_maxmin_system,
367 action->variable, i++))) {
368 nw_link = lmm_constraint_id(cnst);
369 if (nw_link->state_current == SURF_LINK_OFF) {
370 action->generic_action.finish = surf_get_clock();
371 action_change_state((surf_action_t) action, SURF_ACTION_FAILED);
381 static void update_resource_state(void *id,
382 tmgr_trace_event_t event_type,
385 link_CM02_t nw_link = id;
386 /* printf("[" "%lg" "] Asking to update network card \"%s\" with value " */
387 /* "%lg" " for event %p\n", surf_get_clock(), nw_link->name, */
388 /* value, event_type); */
390 if (event_type == nw_link->bw_event) {
391 nw_link->bw_current = value;
392 lmm_update_constraint_bound(network_maxmin_system, nw_link->constraint,
393 nw_link->bw_current);
394 } else if (event_type == nw_link->lat_event) {
395 double delta = value - nw_link->lat_current;
396 lmm_variable_t var = NULL;
397 surf_action_network_CM02_t action = NULL;
399 nw_link->lat_current = value;
400 while (lmm_get_var_from_cnst
401 (network_maxmin_system, nw_link->constraint, &var)) {
402 action = lmm_variable_id(var);
403 action->lat_current += delta;
404 if (action->rate < 0)
405 lmm_update_variable_bound(network_maxmin_system, action->variable,
406 SG_TCP_CTE_GAMMA / (2.0 *
410 lmm_update_variable_bound(network_maxmin_system, action->variable,
412 SG_TCP_CTE_GAMMA / (2.0 *
415 if (!(action->suspended))
416 lmm_update_variable_weight(network_maxmin_system, action->variable,
417 action->lat_current);
418 lmm_update_variable_latency(network_maxmin_system, action->variable,
421 } else if (event_type == nw_link->state_event) {
423 nw_link->state_current = SURF_LINK_ON;
425 nw_link->state_current = SURF_LINK_OFF;
427 CRITICAL0("Unknown event ! \n");
434 static surf_action_t communicate(void *src, void *dst, double size,
437 surf_action_network_CM02_t action = NULL;
438 network_card_CM02_t card_src = src;
439 network_card_CM02_t card_dst = dst;
440 int route_size = ROUTE_SIZE(card_src->id, card_dst->id);
441 link_CM02_t *route = ROUTE(card_src->id, card_dst->id);
444 XBT_IN4("(%s,%s,%g,%g)", card_src->name, card_dst->name, size, rate);
445 xbt_assert2(route_size,
446 "You're trying to send data from %s to %s but there is no connexion between these two cards.",
447 card_src->name, card_dst->name);
449 action = xbt_new0(s_surf_action_network_CM02_t, 1);
451 action->generic_action.using = 1;
452 action->generic_action.cost = size;
453 action->generic_action.remains = size;
454 action->generic_action.max_duration = NO_MAX_DURATION;
455 action->generic_action.start = surf_get_clock();
456 action->generic_action.finish = -1.0;
457 action->generic_action.model_type =
458 (surf_model_t) surf_network_model;
459 action->suspended = 0; /* Should be useless because of the
460 calloc but it seems to help valgrind... */
461 action->generic_action.state_set =
462 surf_network_model->common_public->states.running_action_set;
464 xbt_swag_insert(action, action->generic_action.state_set);
467 action->latency = 0.0;
468 for (i = 0; i < route_size; i++)
469 action->latency += route[i]->lat_current;
470 action->lat_current = action->latency;
472 if (action->latency > 0)
474 lmm_variable_new(network_maxmin_system, action, 0.0, -1.0,
478 lmm_variable_new(network_maxmin_system, action, 1.0, -1.0,
481 if (action->rate < 0) {
482 if (action->lat_current > 0)
483 lmm_update_variable_bound(network_maxmin_system, action->variable,
484 SG_TCP_CTE_GAMMA / (2.0 *
485 action->lat_current));
487 lmm_update_variable_bound(network_maxmin_system, action->variable,
490 if (action->lat_current > 0)
491 lmm_update_variable_bound(network_maxmin_system, action->variable,
493 SG_TCP_CTE_GAMMA / (2.0 *
497 lmm_update_variable_bound(network_maxmin_system, action->variable,
500 lmm_update_variable_latency(network_maxmin_system, action->variable,
503 for (i = 0; i < route_size; i++)
504 lmm_expand(network_maxmin_system, route[i]->constraint,
505 action->variable, 1.0);
508 return (surf_action_t) action;
511 /* returns an array of link_CM02_t */
512 static const void **get_route(void *src, void *dst)
514 network_card_CM02_t card_src = src;
515 network_card_CM02_t card_dst = dst;
516 return (const void **) ROUTE(card_src->id, card_dst->id);
519 static int get_route_size(void *src, void *dst)
521 network_card_CM02_t card_src = src;
522 network_card_CM02_t card_dst = dst;
523 return ROUTE_SIZE(card_src->id, card_dst->id);
526 static const char *get_link_name(const void *link)
528 return ((link_CM02_t) link)->name;
531 static double get_link_bandwidth(const void *link)
533 return ((link_CM02_t) link)->bw_current;
536 static double get_link_latency(const void *link)
538 return ((link_CM02_t) link)->lat_current;
541 static xbt_dict_t get_properties(void *link)
543 return ((link_CM02_t) link)->properties;
546 static void action_suspend(surf_action_t action)
548 ((surf_action_network_CM02_t) action)->suspended = 1;
549 lmm_update_variable_weight(network_maxmin_system,
550 ((surf_action_network_CM02_t) action)->
554 static void action_resume(surf_action_t action)
556 if (((surf_action_network_CM02_t) action)->suspended) {
557 lmm_update_variable_weight(network_maxmin_system,
558 ((surf_action_network_CM02_t) action)->
560 ((surf_action_network_CM02_t) action)->
562 ((surf_action_network_CM02_t) action)->suspended = 0;
566 static int action_is_suspended(surf_action_t action)
568 return ((surf_action_network_CM02_t) action)->suspended;
571 static void action_set_max_duration(surf_action_t action, double duration)
573 action->max_duration = duration;
576 static void finalize(void)
580 xbt_dict_free(&network_card_set);
581 xbt_dict_free(&link_set);
582 xbt_swag_free(surf_network_model->common_public->states.
584 xbt_swag_free(surf_network_model->common_public->states.
586 xbt_swag_free(surf_network_model->common_public->states.
588 xbt_swag_free(surf_network_model->common_public->states.
590 free(surf_network_model->common_public);
591 free(surf_network_model->common_private);
592 free(surf_network_model->extension_public);
594 free(surf_network_model);
595 surf_network_model = NULL;
598 for (i = 0; i < card_number; i++)
599 for (j = 0; j < card_number; j++)
602 routing_table = NULL;
603 free(routing_table_size);
604 routing_table_size = NULL;
608 static void surf_network_model_init_internal(void)
610 s_surf_action_t action;
612 surf_network_model = xbt_new0(s_surf_network_model_t, 1);
614 surf_network_model->common_private =
615 xbt_new0(s_surf_model_private_t, 1);
616 surf_network_model->common_public =
617 xbt_new0(s_surf_model_public_t, 1);
618 surf_network_model->extension_public =
619 xbt_new0(s_surf_network_model_extension_public_t, 1);
621 surf_network_model->common_public->states.ready_action_set =
622 xbt_swag_new(xbt_swag_offset(action, state_hookup));
623 surf_network_model->common_public->states.running_action_set =
624 xbt_swag_new(xbt_swag_offset(action, state_hookup));
625 surf_network_model->common_public->states.failed_action_set =
626 xbt_swag_new(xbt_swag_offset(action, state_hookup));
627 surf_network_model->common_public->states.done_action_set =
628 xbt_swag_new(xbt_swag_offset(action, state_hookup));
630 surf_network_model->common_public->name_service = name_service;
631 surf_network_model->common_public->get_resource_name =
633 surf_network_model->common_public->action_get_state =
634 surf_action_get_state;
635 surf_network_model->common_public->action_get_start_time =
636 surf_action_get_start_time;
637 surf_network_model->common_public->action_get_finish_time =
638 surf_action_get_finish_time;
639 surf_network_model->common_public->action_free = action_free;
640 surf_network_model->common_public->action_use = action_use;
641 surf_network_model->common_public->action_cancel = action_cancel;
642 surf_network_model->common_public->action_recycle = action_recycle;
643 surf_network_model->common_public->action_change_state =
645 surf_network_model->common_public->action_set_data =
646 surf_action_set_data;
647 surf_network_model->common_public->name = "network";
649 surf_network_model->common_private->resource_used = resource_used;
650 surf_network_model->common_private->share_resources = share_resources;
651 surf_network_model->common_private->update_actions_state =
652 update_actions_state;
653 surf_network_model->common_private->update_resource_state =
654 update_resource_state;
655 surf_network_model->common_private->finalize = finalize;
657 surf_network_model->common_public->suspend = action_suspend;
658 surf_network_model->common_public->resume = action_resume;
659 surf_network_model->common_public->is_suspended = action_is_suspended;
660 surf_cpu_model->common_public->set_max_duration =
661 action_set_max_duration;
663 surf_network_model->extension_public->communicate = communicate;
664 surf_network_model->extension_public->get_route = get_route;
665 surf_network_model->extension_public->get_route_size = get_route_size;
666 surf_network_model->extension_public->get_link_name = get_link_name;
667 surf_network_model->extension_public->get_link_bandwidth =
669 surf_network_model->extension_public->get_link_latency =
672 surf_network_model->common_public->get_properties = get_properties;
674 link_set = xbt_dict_new();
675 network_card_set = xbt_dict_new();
677 if (!network_maxmin_system)
678 network_maxmin_system = lmm_system_new();
681 /***************************************************************************/
682 /* The nice TCP sharing model designed by Loris Marchal and Henri Casanova */
683 /***************************************************************************/
684 /* @TechReport{ rr-lip2002-40, */
685 /* author = {Henri Casanova and Loris Marchal}, */
686 /* institution = {LIP}, */
687 /* title = {A Network Model for Simulation of Grid Application}, */
688 /* number = {2002-40}, */
692 void surf_network_model_init_CM02(const char *filename)
695 if (surf_network_model)
697 surf_network_model_init_internal();
698 parse_file(filename);
699 xbt_dynar_push(model_list, &surf_network_model);
700 network_solve = lmm_solve;
702 update_model_description(surf_network_model_description,
703 surf_network_model_description_size,
705 (surf_model_t) surf_network_model);
708 void surf_network_model_init_Reno(const char *filename)
710 if (surf_network_model)
712 surf_network_model_init_internal();
713 parse_file(filename);
715 xbt_dynar_push(model_list, &surf_network_model);
716 lmm_set_default_protocol_function(func_reno_f, func_reno_fp,
718 network_solve = lagrange_solve;
720 update_model_description(surf_network_model_description,
721 surf_network_model_description_size,
723 (surf_model_t) surf_network_model);
726 void surf_network_model_init_Vegas(const char *filename)
728 if (surf_network_model)
730 surf_network_model_init_internal();
731 parse_file(filename);
733 xbt_dynar_push(model_list, &surf_network_model);
734 lmm_set_default_protocol_function(func_vegas_f, func_vegas_fp,
736 network_solve = lagrange_solve;
738 update_model_description(surf_network_model_description,
739 surf_network_model_description_size,
741 (surf_model_t) surf_network_model);
745 void surf_network_model_init_SDP(const char *filename)
747 if (surf_network_model)
749 surf_network_model_init_internal();
750 parse_file(filename);
752 xbt_dynar_push(model_list, &surf_network_model);
753 network_solve = sdp_solve;
755 update_model_description(surf_network_model_description,
756 surf_network_model_description_size,
758 (surf_model_t) surf_network_model);