3 /* Copyright (c) 2005 Henri Casanova. 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_dassf_private.h"
10 XBT_LOG_EXTERNAL_DEFAULT_CATEGORY(surf_network);
12 /* surf_network_resource_t surf_network_resource = NULL; */
13 /*xbt_dict_t network_link_set = NULL;*/
14 /* xbt_dict_t network_card_set = NULL; */
16 static int card_number = 0;
17 static network_link_DASSF_t **routing_table = NULL;
18 static int *routing_table_size = NULL;
20 #define ROUTE(i,j) routing_table[(i)+(j)*card_number]
21 #define ROUTE_SIZE(i,j) routing_table_size[(i)+(j)*card_number]
23 static void create_routing_table(void)
25 routing_table = xbt_new0(network_link_DASSF_t *, card_number * card_number);
26 routing_table_size = xbt_new0(int, card_number * card_number);
29 static void network_link_free(void *nw_link)
31 free(((network_link_DASSF_t)nw_link)->name);
35 static network_link_DASSF_t network_link_new(char *name,
37 tmgr_trace_t bw_trace,
39 tmgr_trace_t lat_trace,
40 e_surf_network_link_state_t
42 tmgr_trace_t state_trace)
44 network_link_DASSF_t nw_link = xbt_new0(s_network_link_DASSF_t, 1);
47 nw_link->resource = (surf_resource_t) surf_network_resource;
49 nw_link->bw_current = bw_initial;
52 tmgr_history_add_trace(history, bw_trace, 0.0, 0, nw_link);
53 nw_link->lat_current = lat_initial;
56 tmgr_history_add_trace(history, lat_trace, 0.0, 0, nw_link);
57 nw_link->state_current = state_initial;
59 nw_link->state_event =
60 tmgr_history_add_trace(history, state_trace, 0.0, 0, nw_link);
63 lmm_constraint_new(maxmin_system, nw_link, nw_link->bw_current);
65 xbt_dict_set(network_link_set, name, nw_link, network_link_free);
70 static void network_card_free(void *nw_card)
72 free(((network_card_DASSF_t)nw_card)->name);
76 static int network_card_new(const char *card_name)
78 network_card_DASSF_t card = xbt_dict_get_or_null(network_card_set, card_name);
81 card = xbt_new0(s_network_card_DASSF_t, 1);
82 card->name = xbt_strdup(card_name);
83 card->id = card_number++;
84 xbt_dict_set(network_card_set, card_name, card, network_card_free);
89 static void route_new(int src_id, int dst_id, char **links, int nb_link)
91 network_link_DASSF_t *link_list = NULL;
94 ROUTE_SIZE(src_id, dst_id) = nb_link;
95 link_list = (ROUTE(src_id, dst_id) = xbt_new0(network_link_DASSF_t, nb_link));
96 for (i = 0; i < nb_link; i++) {
97 link_list[i] = xbt_dict_get_or_null(network_link_set, links[i]);
103 static void parse_network_link(void)
107 tmgr_trace_t bw_trace;
109 tmgr_trace_t lat_trace;
110 e_surf_network_link_state_t state_initial = SURF_NETWORK_LINK_ON;
111 tmgr_trace_t state_trace;
113 name = xbt_strdup(A_surfxml_network_link_name);
114 surf_parse_get_double(&bw_initial,A_surfxml_network_link_bandwidth);
115 surf_parse_get_trace(&bw_trace, A_surfxml_network_link_bandwidth_file);
116 surf_parse_get_double(&lat_initial,A_surfxml_network_link_latency);
117 surf_parse_get_trace(&lat_trace, A_surfxml_network_link_latency_file);
119 xbt_assert0((A_surfxml_network_link_state==A_surfxml_network_link_state_ON)||
120 (A_surfxml_network_link_state==A_surfxml_network_link_state_OFF),
122 if (A_surfxml_network_link_state==A_surfxml_network_link_state_ON)
123 state_initial = SURF_NETWORK_LINK_ON;
124 if (A_surfxml_network_link_state==A_surfxml_network_link_state_OFF)
125 state_initial = SURF_NETWORK_LINK_OFF;
126 surf_parse_get_trace(&state_trace,A_surfxml_network_link_state_file);
128 network_link_new(name, bw_initial, bw_trace,
129 lat_initial, lat_trace, state_initial, state_trace);
132 static int nb_link = 0;
133 static char **link_name = NULL;
134 static int src_id = -1;
135 static int dst_id = -1;
137 static void parse_route_set_endpoints(void)
139 src_id = network_card_new(A_surfxml_route_src);
140 dst_id = network_card_new(A_surfxml_route_dst);
145 static void parse_route_elem(void)
148 link_name = xbt_realloc(link_name, (nb_link) * sizeof(char *));
149 link_name[(nb_link) - 1] = xbt_strdup(A_surfxml_route_element_name);
152 static void parse_route_set_route(void)
154 route_new(src_id, dst_id, link_name, nb_link);
157 static void parse_file(const char *file)
159 /* Figuring out the network links */
160 surf_parse_reset_parser();
161 ETag_surfxml_network_link_fun=parse_network_link;
162 surf_parse_open(file);
163 xbt_assert1((!surf_parse()),"Parse error in %s",file);
166 /* Figuring out the network cards used */
167 surf_parse_reset_parser();
168 STag_surfxml_route_fun=parse_route_set_endpoints;
169 surf_parse_open(file);
170 xbt_assert1((!surf_parse()),"Parse error in %s",file);
173 create_routing_table();
175 /* Building the routes */
176 surf_parse_reset_parser();
177 STag_surfxml_route_fun=parse_route_set_endpoints;
178 ETag_surfxml_route_element_fun=parse_route_elem;
179 ETag_surfxml_route_fun=parse_route_set_route;
180 surf_parse_open(file);
181 xbt_assert1((!surf_parse()),"Parse error in %s",file);
185 static void *name_service(const char *name)
187 return xbt_dict_get_or_null(network_card_set, name);
190 static const char *get_resource_name(void *resource_id)
192 return ((network_card_DASSF_t) resource_id)->name;
195 static int resource_used(void *resource_id)
197 return lmm_constraint_used(maxmin_system,
198 ((network_link_DASSF_t) resource_id)->constraint);
201 static int action_free(surf_action_t action)
205 xbt_swag_remove(action, action->state_set);
206 if(((surf_action_network_DASSF_t)action)->variable)
207 lmm_variable_free(maxmin_system, ((surf_action_network_DASSF_t)action)->variable);
213 static void action_cancel(surf_action_t action)
218 static void action_recycle(surf_action_t action)
223 static void action_change_state(surf_action_t action,
224 e_surf_action_state_t state)
226 /* if((state==SURF_ACTION_DONE) || (state==SURF_ACTION_FAILED)) */
227 /* if(((surf_action_network_DASSF_t)action)->variable) { */
228 /* lmm_variable_disable(maxmin_system, ((surf_action_network_DASSF_t)action)->variable); */
229 /* ((surf_action_network_DASSF_t)action)->variable = NULL; */
232 surf_action_change_state(action, state);
236 static double share_resources(double now)
238 s_surf_action_network_DASSF_t s_action;
239 surf_action_network_DASSF_t action = NULL;
240 xbt_swag_t running_actions = surf_network_resource->common_public->states.running_action_set;
241 double min = generic_maxmin_share_resources(running_actions,
242 xbt_swag_offset(s_action, variable));
244 xbt_swag_foreach(action, running_actions) {
245 if(action->latency>0) {
246 if(min<0) min = action->latency;
247 else if (action->latency<min) min = action->latency;
254 static void update_actions_state(double now, double delta)
257 surf_action_network_DASSF_t action = NULL;
258 surf_action_network_DASSF_t next_action = NULL;
259 xbt_swag_t running_actions =
260 surf_network_resource->common_public->states.running_action_set;
262 xbt_swag_t failed_actions =
263 surf_network_resource->common_public->states.failed_action_set;
266 xbt_swag_foreach_safe(action, next_action, running_actions) {
268 if (action->latency > 0) {
269 if (action->latency > deltap) {
270 surf_double_update(&(action->latency),deltap);
273 surf_double_update(&(deltap), action->latency);
274 action->latency = 0.0;
276 if ((action->latency == 0.0) && !(action->suspended))
277 lmm_update_variable_weight(maxmin_system, action->variable, 1.0);
279 surf_double_update(&(action->generic_action.remains),
280 lmm_variable_getvalue(action->variable) * deltap);
281 if (action->generic_action.max_duration != NO_MAX_DURATION)
282 surf_double_update(&(action->generic_action.max_duration), delta);
284 /* if(action->generic_action.remains<.00001) action->generic_action.remains=0; */
286 if (action->generic_action.remains <= 0) {
287 action->generic_action.finish = surf_get_clock();
288 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
289 } else if ((action->generic_action.max_duration != NO_MAX_DURATION) &&
290 (action->generic_action.max_duration <= 0)) {
291 action->generic_action.finish = surf_get_clock();
292 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
293 } else { /* Need to check that none of the resource has failed */
294 lmm_constraint_t cnst = NULL;
296 network_link_DASSF_t nw_link = NULL;
299 lmm_get_cnst_from_var(maxmin_system, action->variable,
301 nw_link = lmm_constraint_id(cnst);
302 if (nw_link->state_current == SURF_NETWORK_LINK_OFF) {
303 action->generic_action.finish = surf_get_clock();
304 action_change_state((surf_action_t) action, SURF_ACTION_FAILED);
314 static void update_resource_state(void *id,
315 tmgr_trace_event_t event_type,
318 network_link_DASSF_t nw_link = id;
319 /* printf("[" "%lg" "] Asking to update network card \"%s\" with value " */
320 /* "%lg" " for event %p\n", surf_get_clock(), nw_link->name, */
321 /* value, event_type); */
323 if (event_type == nw_link->bw_event) {
324 nw_link->bw_current = value;
325 lmm_update_constraint_bound(maxmin_system, nw_link->constraint,
326 nw_link->bw_current);
327 } else if (event_type == nw_link->lat_event) {
328 double delta = value - nw_link->lat_current;
329 lmm_variable_t var = NULL;
330 surf_action_network_DASSF_t action = NULL;
332 nw_link->lat_current = value;
333 while (lmm_get_var_from_cnst(maxmin_system, nw_link->constraint, &var)) {
334 action = lmm_variable_id(var);
335 action->lat_current += delta;
337 lmm_update_variable_bound(maxmin_system, action->variable,
338 SG_TCP_CTE_GAMMA / action->lat_current);
340 lmm_update_variable_bound(maxmin_system, action->variable,
341 min(action->rate,SG_TCP_CTE_GAMMA / action->lat_current));
343 } else if (event_type == nw_link->state_event) {
345 nw_link->state_current = SURF_NETWORK_LINK_ON;
347 nw_link->state_current = SURF_NETWORK_LINK_OFF;
349 CRITICAL0("Unknown event ! \n");
356 static surf_action_t communicate(void *src, void *dst, double size, double rate)
358 surf_action_network_DASSF_t action = NULL;
359 network_card_DASSF_t card_src = src;
360 network_card_DASSF_t card_dst = dst;
361 int route_size = ROUTE_SIZE(card_src->id, card_dst->id);
362 network_link_DASSF_t *route = ROUTE(card_src->id, card_dst->id);
365 xbt_assert2(route_size,"You're trying to send data from %s to %s but there is no connexion between these two cards.", card_src->name, card_dst->name);
367 action = xbt_new0(s_surf_action_network_DASSF_t, 1);
369 action->generic_action.using = 1;
370 action->generic_action.cost = size;
371 action->generic_action.remains = size;
372 action->generic_action.max_duration = NO_MAX_DURATION;
373 action->generic_action.start = -1.0;
374 action->generic_action.finish = -1.0;
375 action->generic_action.resource_type =
376 (surf_resource_t) surf_network_resource;
378 action->generic_action.state_set =
379 surf_network_resource->common_public->states.running_action_set;
381 xbt_swag_insert(action, action->generic_action.state_set);
384 action->latency = 0.0;
385 for (i = 0; i < route_size; i++)
386 action->latency += route[i]->lat_current;
387 action->lat_current = action->latency;
389 if(action->latency>0)
390 action->variable = lmm_variable_new(maxmin_system, action, 0.0, -1.0,
393 action->variable = lmm_variable_new(maxmin_system, action, 1.0, -1.0,
397 lmm_update_variable_bound(maxmin_system, action->variable,
398 SG_TCP_CTE_GAMMA / action->lat_current);
400 lmm_update_variable_bound(maxmin_system, action->variable,
401 min(action->rate,SG_TCP_CTE_GAMMA / action->lat_current));
403 if(route_size == 0) {
404 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
407 for (i = 0; i < route_size; i++)
408 lmm_expand(maxmin_system, route[i]->constraint, action->variable, 1.0);
410 return (surf_action_t) action;
413 /* returns a NULL-terminated array of network_link_DASSF_t */
414 static const void** get_route(void *src, void *dst) {
415 network_card_DASSF_t card_src = src;
416 network_card_DASSF_t card_dst = dst;
417 return (const void**) ROUTE(card_src->id, card_dst->id);
420 static int get_route_size(void *src, void *dst) {
421 network_card_DASSF_t card_src = src;
422 network_card_DASSF_t card_dst = dst;
423 return ROUTE_SIZE(card_src->id, card_dst->id);
426 static const char *get_link_name(const void *link) {
427 return ((network_link_DASSF_t) link)->name;
430 static double get_link_bandwidth(const void *link) {
431 return ((network_link_DASSF_t) link)->bw_current;
434 static double get_link_latency(const void *link) {
435 return ((network_link_DASSF_t) link)->lat_current;
438 static void action_suspend(surf_action_t action)
440 ((surf_action_network_DASSF_t) action)->suspended = 1;
441 lmm_update_variable_weight(maxmin_system,
442 ((surf_action_network_DASSF_t) action)->variable, 0.0);
445 static void action_resume(surf_action_t action)
447 lmm_update_variable_weight(maxmin_system,
448 ((surf_action_network_DASSF_t) action)->variable, 1.0);
449 ((surf_action_network_DASSF_t) action)->suspended = 0;
452 static int action_is_suspended(surf_action_t action)
454 return ((surf_action_network_DASSF_t) action)->suspended;
457 static void finalize(void)
461 xbt_dict_free(&network_card_set);
462 xbt_dict_free(&network_link_set);
463 xbt_swag_free(surf_network_resource->common_public->states.
465 xbt_swag_free(surf_network_resource->common_public->states.
467 xbt_swag_free(surf_network_resource->common_public->states.
469 xbt_swag_free(surf_network_resource->common_public->states.
471 free(surf_network_resource->common_public);
472 free(surf_network_resource->common_private);
473 free(surf_network_resource->extension_public);
475 free(surf_network_resource);
476 surf_network_resource = NULL;
478 for (i = 0; i < card_number; i++)
479 for (j = 0; j < card_number; j++)
482 routing_table = NULL;
483 free(routing_table_size);
484 routing_table_size = NULL;
488 static void surf_network_resource_init_internal(void)
490 s_surf_action_t action;
492 surf_network_resource = xbt_new0(s_surf_network_resource_t, 1);
494 surf_network_resource->common_private =
495 xbt_new0(s_surf_resource_private_t, 1);
496 surf_network_resource->common_public =
497 xbt_new0(s_surf_resource_public_t, 1);
498 surf_network_resource->extension_public =
499 xbt_new0(s_surf_network_resource_extension_public_t, 1);
501 surf_network_resource->common_public->states.ready_action_set =
502 xbt_swag_new(xbt_swag_offset(action, state_hookup));
503 surf_network_resource->common_public->states.running_action_set =
504 xbt_swag_new(xbt_swag_offset(action, state_hookup));
505 surf_network_resource->common_public->states.failed_action_set =
506 xbt_swag_new(xbt_swag_offset(action, state_hookup));
507 surf_network_resource->common_public->states.done_action_set =
508 xbt_swag_new(xbt_swag_offset(action, state_hookup));
510 surf_network_resource->common_public->name_service = name_service;
511 surf_network_resource->common_public->get_resource_name =
513 surf_network_resource->common_public->action_get_state =
514 surf_action_get_state;
515 surf_network_resource->common_public->action_free = action_free;
516 surf_network_resource->common_public->action_cancel = action_cancel;
517 surf_network_resource->common_public->action_recycle = action_recycle;
518 surf_network_resource->common_public->action_change_state =
520 surf_network_resource->common_public->action_set_data = surf_action_set_data;
521 surf_network_resource->common_public->name = "network";
523 surf_network_resource->common_private->resource_used = resource_used;
524 surf_network_resource->common_private->share_resources = share_resources;
525 surf_network_resource->common_private->update_actions_state =
526 update_actions_state;
527 surf_network_resource->common_private->update_resource_state =
528 update_resource_state;
529 surf_network_resource->common_private->finalize = finalize;
531 surf_network_resource->common_public->suspend = action_suspend;
532 surf_network_resource->common_public->resume = action_resume;
533 surf_network_resource->common_public->is_suspended = action_is_suspended;
535 surf_network_resource->extension_public->communicate = communicate;
536 surf_network_resource->extension_public->get_route = get_route;
537 surf_network_resource->extension_public->get_route_size = get_route_size;
538 surf_network_resource->extension_public->get_link_name = get_link_name;
539 surf_network_resource->extension_public->get_link_bandwidth = get_link_bandwidth;
540 surf_network_resource->extension_public->get_link_latency = get_link_latency;
542 network_link_set = xbt_dict_new();
543 network_card_set = xbt_dict_new();
545 xbt_assert0(maxmin_system, "surf_init has to be called first!");
548 /***************************************************************************/
549 /* The nice Hack by Henri to use DASSF from within SURF ! */
550 /***************************************************************************/
551 /* I put this prototype here for now but it will have to go in
552 src/include/surf.h when it will be functionnal. */
553 void surf_network_resource_init_DASSF(const char *filename);
555 void surf_network_resource_init_DASSF(const char *filename)
557 if (surf_network_resource)
559 surf_network_resource_init_internal();
560 parse_file(filename);
561 xbt_dynar_push(resource_list, &surf_network_resource);