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 "surf_private.h"
13 typedef struct network_card_Constant {
16 } s_network_card_Constant_t, *network_card_Constant_t;
18 typedef struct network_link_Constant {
19 surf_model_t model; /* Any such object, added in a trace
20 should start by this field!!! */
21 xbt_dict_t properties;
22 /* Using this object with the public part of
23 model does not make sense */
26 tmgr_trace_event_t bw_event;
28 tmgr_trace_event_t lat_event;
29 e_surf_link_state_t state_current;
30 tmgr_trace_event_t state_event;
31 lmm_constraint_t constraint;
32 } s_link_Constant_t, *link_Constant_t;
34 typedef struct surf_action_network_Constant {
35 s_surf_action_t generic_action;
38 lmm_variable_t variable;
41 network_card_Constant_t src;
42 network_card_Constant_t dst;
43 } s_surf_action_network_Constant_t, *surf_action_network_Constant_t;
45 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_network);
47 static lmm_system_t network_maxmin_system = NULL;
48 static void (*network_solve) (lmm_system_t) = NULL;
50 static xbt_dict_t network_card_set = NULL;
52 static int card_number = 0;
53 static int host_number = 0;
54 static link_Constant_t **routing_table = NULL;
55 static int *routing_table_size = NULL;
56 static link_Constant_t loopback = NULL;
58 #define ROUTE(i,j) routing_table[(i)+(j)*card_number]
59 #define ROUTE_SIZE(i,j) routing_table_size[(i)+(j)*card_number]
61 static void create_routing_table(void)
64 xbt_new0(link_Constant_t *, /*card_number * card_number */ host_number * host_number);
65 routing_table_size = xbt_new0(int, /*card_number * card_number*/ host_number * host_number);
68 static void link_free(void *nw_link)
70 free(((link_Constant_t) nw_link)->name);
74 static link_Constant_t link_new(char *name,
76 tmgr_trace_t bw_trace,
78 tmgr_trace_t lat_trace,
81 tmgr_trace_t state_trace,
82 e_surf_link_sharing_policy_t
83 policy, xbt_dict_t properties)
85 link_Constant_t nw_link = xbt_new0(s_link_Constant_t, 1);
86 xbt_assert1(!xbt_dict_get_or_null(link_set, name),
87 "Link '%s' declared several times in the platform file.", name);
89 nw_link->model = (surf_model_t) surf_network_model;
91 nw_link->bw_current = bw_initial;
94 tmgr_history_add_trace(history, bw_trace, 0.0, 0, nw_link);
95 nw_link->lat_current = lat_initial;
98 tmgr_history_add_trace(history, lat_trace, 0.0, 0, nw_link);
99 nw_link->state_current = state_initial;
101 nw_link->state_event =
102 tmgr_history_add_trace(history, state_trace, 0.0, 0, nw_link);
104 nw_link->constraint =
105 lmm_constraint_new(network_maxmin_system, nw_link,
106 nw_link->bw_current);
108 if (policy == SURF_LINK_FATPIPE)
109 lmm_constraint_shared(nw_link->constraint);
111 nw_link->properties = properties;
113 current_property_set = properties;
115 xbt_dict_set(link_set, name, nw_link, link_free);
120 static void network_card_free(void *nw_card)
122 free(((network_card_Constant_t) nw_card)->name);
126 static int network_card_new(const char *card_name)
128 network_card_Constant_t card =
129 xbt_dict_get_or_null(network_card_set, card_name);
132 card = xbt_new0(s_network_card_Constant_t, 1);
133 card->name = xbt_strdup(card_name);
134 card->id = card_number++;
135 xbt_dict_set(network_card_set, card_name, card, network_card_free);
140 static void route_new(int src_id, int dst_id,
141 link_Constant_t * link_list, int nb_link)
143 ROUTE_SIZE(src_id, dst_id) = nb_link;
144 ROUTE(src_id, dst_id) = link_list =
145 xbt_realloc(link_list, sizeof(link_Constant_t) * nb_link);
148 static void parse_link_init(void)
152 tmgr_trace_t bw_trace;
154 tmgr_trace_t lat_trace;
155 e_surf_link_state_t state_initial_link = SURF_LINK_ON;
156 e_surf_link_sharing_policy_t policy_initial_link = SURF_LINK_SHARED;
157 tmgr_trace_t state_trace;
159 name_link = xbt_strdup(A_surfxml_link_id);
160 surf_parse_get_double(&bw_initial, A_surfxml_link_bandwidth);
161 surf_parse_get_trace(&bw_trace, A_surfxml_link_bandwidth_file);
162 surf_parse_get_double(&lat_initial, A_surfxml_link_latency);
163 surf_parse_get_trace(&lat_trace, A_surfxml_link_latency_file);
165 xbt_assert0((A_surfxml_link_state ==
166 A_surfxml_link_state_ON)
167 || (A_surfxml_link_state ==
168 A_surfxml_link_state_OFF), "Invalid state");
169 if (A_surfxml_link_state == A_surfxml_link_state_ON)
170 state_initial_link = SURF_LINK_ON;
171 else if (A_surfxml_link_state ==
172 A_surfxml_link_state_OFF)
173 state_initial_link = SURF_LINK_OFF;
175 if (A_surfxml_link_sharing_policy ==
176 A_surfxml_link_sharing_policy_SHARED)
177 policy_initial_link = SURF_LINK_SHARED;
178 else if (A_surfxml_link_sharing_policy ==
179 A_surfxml_link_sharing_policy_FATPIPE)
180 policy_initial_link = SURF_LINK_FATPIPE;
182 surf_parse_get_trace(&state_trace, A_surfxml_link_state_file);
184 link_new(name_link, bw_initial, bw_trace,
185 lat_initial, lat_trace, state_initial_link, state_trace,
186 policy_initial_link, xbt_dict_new());
190 static int src_id = -1;
191 static int dst_id = -1;
193 static void parse_route_set_endpoints(void)
195 src_id = network_card_new(A_surfxml_route_src);
196 dst_id = network_card_new(A_surfxml_route_dst);
197 route_action = A_surfxml_route_action;
198 route_link_list = xbt_dynar_new(sizeof(char *), &free_string);
201 static void parse_route_set_route(void)
204 if (src_id != -1 && dst_id != -1) {
205 name = bprintf("%x#%x",src_id, dst_id);
206 manage_route(route_table, name, route_action, 0);
211 static void add_loopback(void)
214 /* Adding loopback if needed */
215 for (i = 0; i < host_number; i++)
216 if (!ROUTE_SIZE(i, i)) {
218 loopback = link_new(xbt_strdup("__MSG_loopback__"),
219 498000000, NULL, 0.000015, NULL,
221 SURF_LINK_FATPIPE,NULL);
222 ROUTE_SIZE(i, i) = 1;
223 ROUTE(i, i) = xbt_new0(link_Constant_t, 1);
224 ROUTE(i, i)[0] = loopback;
228 static void add_route(void)
232 unsigned int cpt = 0;
233 int link_list_capacity = 0;
234 link_Constant_t *link_list = NULL;
235 xbt_dict_cursor_t cursor = NULL;
236 char *key,*data, *end;
237 const char *sep = "#";
238 xbt_dynar_t links, keys;
240 if (routing_table == NULL) create_routing_table();
242 xbt_dict_foreach(route_table, cursor, key, data) {
245 links = (xbt_dynar_t)data;
246 keys = xbt_str_split_str(key, sep);
248 link_list_capacity = xbt_dynar_length(links);
249 link_list = xbt_new(link_Constant_t, link_list_capacity);
251 src_id = strtol(xbt_dynar_get_as(keys, 0, char*), &end, 16);
252 dst_id = strtol(xbt_dynar_get_as(keys, 1, char*), &end, 16);
254 xbt_dynar_foreach (links, cpt, link) {
256 link_list[nb_link++] = xbt_dict_get(link_set, link);
259 RETHROW1("Link %s not found (dict raised this exception: %s)", link);
262 route_new(src_id, dst_id, link_list, nb_link);
265 xbt_dict_free(&route_table);
269 static void count_hosts(void)
275 static void add_traces(void) {
276 xbt_dict_cursor_t cursor=NULL;
277 char *trace_name,*elm;
279 static int called = 0;
283 /* connect all traces relative to network */
284 xbt_dict_foreach(trace_connect_list_link_avail, cursor, trace_name, elm) {
285 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
286 link_Constant_t link = xbt_dict_get_or_null(link_set, elm);
288 xbt_assert1(link, "Link %s undefined", elm);
289 xbt_assert1(trace, "Trace %s undefined", trace_name);
291 link->state_event = tmgr_history_add_trace(history, trace, 0.0, 0, link);
294 xbt_dict_foreach(trace_connect_list_bandwidth, cursor, trace_name, elm) {
295 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
296 link_Constant_t link = xbt_dict_get_or_null(link_set, elm);
298 xbt_assert1(link, "Link %s undefined", elm);
299 xbt_assert1(trace, "Trace %s undefined", trace_name);
301 link->bw_event = tmgr_history_add_trace(history, trace, 0.0, 0, link);
304 xbt_dict_foreach(trace_connect_list_latency, cursor, trace_name, elm) {
305 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
306 link_Constant_t link = xbt_dict_get_or_null(link_set, elm);
308 xbt_assert1(link, "Link %s undefined", elm);
309 xbt_assert1(trace, "Trace %s undefined", trace_name);
311 link->lat_event = tmgr_history_add_trace(history, trace, 0.0, 0, link);
314 xbt_dict_free(&trace_connect_list_host_avail);
315 xbt_dict_free(&trace_connect_list_power);
316 xbt_dict_free(&trace_connect_list_link_avail);
317 xbt_dict_free(&trace_connect_list_bandwidth);
318 xbt_dict_free(&trace_connect_list_latency);
320 xbt_dict_free(&traces_set_list);
323 static void define_callbacks(const char *file)
325 /* Figuring out the network links */
326 surfxml_add_callback(STag_surfxml_host_cb_list, &count_hosts);
327 surfxml_add_callback(STag_surfxml_link_cb_list, &parse_link_init);
328 surfxml_add_callback(STag_surfxml_prop_cb_list, &parse_properties);
329 surfxml_add_callback(STag_surfxml_route_cb_list, &parse_route_set_endpoints);
330 surfxml_add_callback(ETag_surfxml_link_c_ctn_cb_list, &parse_route_elem);
331 surfxml_add_callback(ETag_surfxml_route_cb_list, &parse_route_set_route);
332 surfxml_add_callback(STag_surfxml_platform_cb_list, &init_data);
333 surfxml_add_callback(ETag_surfxml_platform_cb_list, &add_traces);
334 surfxml_add_callback(ETag_surfxml_platform_cb_list, &add_route);
335 surfxml_add_callback(ETag_surfxml_platform_cb_list, &add_loopback);
336 surfxml_add_callback(STag_surfxml_set_cb_list, &parse_sets);
337 surfxml_add_callback(STag_surfxml_route_c_multi_cb_list, &parse_route_multi_set_endpoints);
338 surfxml_add_callback(ETag_surfxml_route_c_multi_cb_list, &parse_route_multi_set_route);
339 surfxml_add_callback(STag_surfxml_foreach_cb_list, &parse_foreach);
340 surfxml_add_callback(STag_surfxml_cluster_cb_list, &parse_cluster);
341 surfxml_add_callback(STag_surfxml_trace_cb_list, &parse_trace_init);
342 surfxml_add_callback(ETag_surfxml_trace_cb_list, &parse_trace_finalize);
343 surfxml_add_callback(STag_surfxml_trace_c_connect_cb_list, &parse_trace_c_connect);
346 static void *name_service(const char *name)
348 network_card_Constant_t card = xbt_dict_get_or_null(network_card_set, name);
352 static const char *get_resource_name(void *resource_id)
354 return ((network_card_Constant_t) resource_id)->name;
357 static int resource_used(void *resource_id)
359 return lmm_constraint_used(network_maxmin_system,
360 ((link_Constant_t) resource_id)->
364 static int action_free(surf_action_t action)
367 if (!action->using) {
368 xbt_swag_remove(action, action->state_set);
369 if (((surf_action_network_Constant_t) action)->variable)
370 lmm_variable_free(network_maxmin_system,
371 ((surf_action_network_Constant_t) action)->variable);
378 static void action_use(surf_action_t action)
383 static void action_cancel(surf_action_t action)
388 static void action_recycle(surf_action_t action)
393 static void action_change_state(surf_action_t action,
394 e_surf_action_state_t state)
396 /* if((state==SURF_ACTION_DONE) || (state==SURF_ACTION_FAILED)) */
397 /* if(((surf_action_network_Constant_t)action)->variable) { */
398 /* lmm_variable_disable(network_maxmin_system, ((surf_action_network_Constant_t)action)->variable); */
399 /* ((surf_action_network_Constant_t)action)->variable = NULL; */
402 surf_action_change_state(action, state);
406 static double share_resources(double now)
408 s_surf_action_network_Constant_t s_action;
409 surf_action_network_Constant_t action = NULL;
410 xbt_swag_t running_actions =
411 surf_network_model->common_public->states.running_action_set;
414 min = generic_maxmin_share_resources(running_actions,
415 xbt_swag_offset(s_action,
417 network_maxmin_system,
420 xbt_swag_foreach(action, running_actions) {
421 if (action->latency > 0) {
423 min = action->latency;
424 else if (action->latency < min)
425 min = action->latency;
432 static void update_actions_state(double now, double delta)
435 surf_action_network_Constant_t action = NULL;
436 surf_action_network_Constant_t next_action = NULL;
437 xbt_swag_t running_actions =
438 surf_network_model->common_public->states.running_action_set;
440 xbt_swag_t failed_actions =
441 surf_network_model->common_public->states.failed_action_set;
444 xbt_swag_foreach_safe(action, next_action, running_actions) {
446 if (action->latency > 0) {
447 if (action->latency > deltap) {
448 double_update(&(action->latency), deltap);
451 double_update(&(deltap), action->latency);
452 action->latency = 0.0;
454 if ((action->latency == 0.0) && !(action->suspended))
455 lmm_update_variable_weight(network_maxmin_system, action->variable,
456 action->lat_current);
458 double_update(&(action->generic_action.remains),
459 lmm_variable_getvalue(action->variable) * deltap);
460 if (action->generic_action.max_duration != NO_MAX_DURATION)
461 double_update(&(action->generic_action.max_duration), delta);
463 /* if(action->generic_action.remains<.00001) action->generic_action.remains=0; */
465 if ((action->generic_action.remains <= 0) &&
466 (lmm_get_variable_weight(action->variable) > 0)) {
467 action->generic_action.finish = surf_get_clock();
468 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
469 } else if ((action->generic_action.max_duration != NO_MAX_DURATION) &&
470 (action->generic_action.max_duration <= 0)) {
471 action->generic_action.finish = surf_get_clock();
472 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
473 } else { /* Need to check that none of the model has failed */
474 lmm_constraint_t cnst = NULL;
476 link_Constant_t nw_link = NULL;
479 lmm_get_cnst_from_var(network_maxmin_system,
480 action->variable, i++))) {
481 nw_link = lmm_constraint_id(cnst);
482 if (nw_link->state_current == SURF_LINK_OFF) {
483 action->generic_action.finish = surf_get_clock();
484 action_change_state((surf_action_t) action, SURF_ACTION_FAILED);
494 static void update_resource_state(void *id,
495 tmgr_trace_event_t event_type,
498 link_Constant_t nw_link = id;
499 /* printf("[" "%lg" "] Asking to update network card \"%s\" with value " */
500 /* "%lg" " for event %p\n", surf_get_clock(), nw_link->name, */
501 /* value, event_type); */
503 if (event_type == nw_link->bw_event) {
504 nw_link->bw_current = value;
505 lmm_update_constraint_bound(network_maxmin_system, nw_link->constraint,
506 nw_link->bw_current);
507 } else if (event_type == nw_link->lat_event) {
508 double delta = value - nw_link->lat_current;
509 lmm_variable_t var = NULL;
510 surf_action_network_Constant_t action = NULL;
512 nw_link->lat_current = value;
513 while (lmm_get_var_from_cnst
514 (network_maxmin_system, nw_link->constraint, &var)) {
515 action = lmm_variable_id(var);
516 action->lat_current += delta;
517 if (action->rate < 0)
518 lmm_update_variable_bound(network_maxmin_system, action->variable,
519 SG_TCP_CTE_GAMMA / (2.0 *
523 lmm_update_variable_bound(network_maxmin_system, action->variable,
525 SG_TCP_CTE_GAMMA / (2.0 *
528 if (!(action->suspended))
529 lmm_update_variable_weight(network_maxmin_system, action->variable,
530 action->lat_current);
531 lmm_update_variable_latency(network_maxmin_system, action->variable,
534 } else if (event_type == nw_link->state_event) {
536 nw_link->state_current = SURF_LINK_ON;
538 nw_link->state_current = SURF_LINK_OFF;
540 CRITICAL0("Unknown event ! \n");
547 static surf_action_t communicate(void *src, void *dst, double size,
550 surf_action_network_Constant_t action = NULL;
551 network_card_Constant_t card_src = src;
552 network_card_Constant_t card_dst = dst;
554 XBT_IN4("(%s,%s,%g,%g)", card_src->name, card_dst->name, size, rate);
556 action = xbt_new0(s_surf_action_network_Constant_t, 1);
558 action->generic_action.using = 1;
559 action->generic_action.cost = size;
560 action->generic_action.remains = size;
561 action->generic_action.max_duration = NO_MAX_DURATION;
562 action->generic_action.start = surf_get_clock();
563 action->generic_action.finish = -1.0;
564 action->generic_action.model_type =
565 (surf_model_t) surf_network_model;
566 action->suspended = 0;
567 action->generic_action.state_set =
568 surf_network_model->common_public->states.running_action_set;
570 xbt_swag_insert(action, action->generic_action.state_set);
573 action->latency = 1.0;
574 action->lat_current = action->latency;
578 return (surf_action_t) action;
581 /* returns an array of link_Constant_t */
582 static const void **get_route(void *src, void *dst)
584 network_card_Constant_t card_src = src;
585 network_card_Constant_t card_dst = dst;
586 return (const void **) ROUTE(card_src->id, card_dst->id);
589 static int get_route_size(void *src, void *dst)
591 network_card_Constant_t card_src = src;
592 network_card_Constant_t card_dst = dst;
593 return ROUTE_SIZE(card_src->id, card_dst->id);
596 static const char *get_link_name(const void *link)
598 return ((link_Constant_t) link)->name;
601 static double get_link_bandwidth(const void *link)
603 return ((link_Constant_t) link)->bw_current;
606 static double get_link_latency(const void *link)
608 return ((link_Constant_t) link)->lat_current;
611 static xbt_dict_t get_properties(void *link)
613 return ((link_Constant_t) link)->properties;
616 static void action_suspend(surf_action_t action)
618 ((surf_action_network_Constant_t) action)->suspended = 1;
619 lmm_update_variable_weight(network_maxmin_system,
620 ((surf_action_network_Constant_t) action)->
624 static void action_resume(surf_action_t action)
626 if (((surf_action_network_Constant_t) action)->suspended) {
627 lmm_update_variable_weight(network_maxmin_system,
628 ((surf_action_network_Constant_t) action)->
630 ((surf_action_network_Constant_t) action)->
632 ((surf_action_network_Constant_t) action)->suspended = 0;
636 static int action_is_suspended(surf_action_t action)
638 return ((surf_action_network_Constant_t) action)->suspended;
641 static void action_set_max_duration(surf_action_t action, double duration)
643 action->max_duration = duration;
646 static void finalize(void)
650 xbt_dict_free(&network_card_set);
651 xbt_dict_free(&link_set);
652 xbt_swag_free(surf_network_model->common_public->states.
654 xbt_swag_free(surf_network_model->common_public->states.
656 xbt_swag_free(surf_network_model->common_public->states.
658 xbt_swag_free(surf_network_model->common_public->states.
660 free(surf_network_model->common_public);
661 free(surf_network_model->common_private);
662 free(surf_network_model->extension_public);
664 free(surf_network_model);
665 surf_network_model = NULL;
668 for (i = 0; i < card_number; i++)
669 for (j = 0; j < card_number; j++)
672 routing_table = NULL;
673 free(routing_table_size);
674 routing_table_size = NULL;
678 static void surf_network_model_init_internal(void)
680 s_surf_action_t action;
682 surf_network_model = xbt_new0(s_surf_network_model_t, 1);
684 surf_network_model->common_private =
685 xbt_new0(s_surf_model_private_t, 1);
686 surf_network_model->common_public =
687 xbt_new0(s_surf_model_public_t, 1);
688 surf_network_model->extension_public =
689 xbt_new0(s_surf_network_model_extension_public_t, 1);
691 surf_network_model->common_public->states.ready_action_set =
692 xbt_swag_new(xbt_swag_offset(action, state_hookup));
693 surf_network_model->common_public->states.running_action_set =
694 xbt_swag_new(xbt_swag_offset(action, state_hookup));
695 surf_network_model->common_public->states.failed_action_set =
696 xbt_swag_new(xbt_swag_offset(action, state_hookup));
697 surf_network_model->common_public->states.done_action_set =
698 xbt_swag_new(xbt_swag_offset(action, state_hookup));
700 surf_network_model->common_public->name_service = name_service;
701 surf_network_model->common_public->get_resource_name =
703 surf_network_model->common_public->action_get_state =
704 surf_action_get_state;
705 surf_network_model->common_public->action_get_start_time =
706 surf_action_get_start_time;
707 surf_network_model->common_public->action_get_finish_time =
708 surf_action_get_finish_time;
709 surf_network_model->common_public->action_free = action_free;
710 surf_network_model->common_public->action_use = action_use;
711 surf_network_model->common_public->action_cancel = action_cancel;
712 surf_network_model->common_public->action_recycle = action_recycle;
713 surf_network_model->common_public->action_change_state =
715 surf_network_model->common_public->action_set_data =
716 surf_action_set_data;
717 surf_network_model->common_public->name = "network";
719 surf_network_model->common_private->resource_used = resource_used;
720 surf_network_model->common_private->share_resources = share_resources;
721 surf_network_model->common_private->update_actions_state =
722 update_actions_state;
723 surf_network_model->common_private->update_resource_state =
724 update_resource_state;
725 surf_network_model->common_private->finalize = finalize;
727 surf_network_model->common_public->suspend = action_suspend;
728 surf_network_model->common_public->resume = action_resume;
729 surf_network_model->common_public->is_suspended = action_is_suspended;
730 surf_cpu_model->common_public->set_max_duration =
731 action_set_max_duration;
733 surf_network_model->extension_public->communicate = communicate;
734 surf_network_model->extension_public->get_route = get_route;
735 surf_network_model->extension_public->get_route_size = get_route_size;
736 surf_network_model->extension_public->get_link_name = get_link_name;
737 surf_network_model->extension_public->get_link_bandwidth =
739 surf_network_model->extension_public->get_link_latency =
742 surf_network_model->common_public->get_properties = get_properties;
744 link_set = xbt_dict_new();
745 network_card_set = xbt_dict_new();
747 if (!network_maxmin_system)
748 network_maxmin_system = lmm_system_new();
751 void surf_network_model_init_Constant(const char *filename)
754 if (surf_network_model)
756 surf_network_model_init_internal();
757 define_callbacks(filename);
758 xbt_dynar_push(model_list, &surf_network_model);
759 network_solve = lmm_solve;
761 update_model_description(surf_network_model_description,
762 surf_network_model_description_size,
764 (surf_model_t) surf_network_model);