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 #define SG_TCP_CTE_GAMMA 20000.0
12 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(network_dassf, surf,
13 "Logging specific to the SURF network module");
15 /* surf_network_resource_t surf_network_resource = NULL; */
16 static xbt_dict_t network_link_set = NULL;
17 /* xbt_dict_t network_card_set = NULL; */
19 static int card_number = 0;
20 static network_link_DASSF_t **routing_table = NULL;
21 static int *routing_table_size = NULL;
23 #define ROUTE(i,j) routing_table[(i)+(j)*card_number]
24 #define ROUTE_SIZE(i,j) routing_table_size[(i)+(j)*card_number]
26 static void create_routing_table(void)
28 routing_table = xbt_new0(network_link_DASSF_t *, card_number * card_number);
29 routing_table_size = xbt_new0(int, card_number * card_number);
32 static void network_link_free(void *nw_link)
34 free(((network_link_DASSF_t)nw_link)->name);
38 static network_link_DASSF_t network_link_new(char *name,
40 tmgr_trace_t bw_trace,
42 tmgr_trace_t lat_trace,
43 e_surf_network_link_state_t
45 tmgr_trace_t state_trace)
47 network_link_DASSF_t nw_link = xbt_new0(s_network_link_DASSF_t, 1);
50 nw_link->resource = (surf_resource_t) surf_network_resource;
52 nw_link->bw_current = bw_initial;
55 tmgr_history_add_trace(history, bw_trace, 0.0, 0, nw_link);
56 nw_link->lat_current = lat_initial;
59 tmgr_history_add_trace(history, lat_trace, 0.0, 0, nw_link);
60 nw_link->state_current = state_initial;
62 nw_link->state_event =
63 tmgr_history_add_trace(history, state_trace, 0.0, 0, nw_link);
66 lmm_constraint_new(maxmin_system, nw_link, nw_link->bw_current);
68 xbt_dict_set(network_link_set, name, nw_link, network_link_free);
73 static void network_card_free(void *nw_card)
75 free(((network_card_DASSF_t)nw_card)->name);
79 static int network_card_new(const char *card_name)
81 network_card_DASSF_t card = NULL;
83 xbt_dict_get(network_card_set, card_name, (void *) &card);
86 card = xbt_new0(s_network_card_DASSF_t, 1);
87 card->name = xbt_strdup(card_name);
88 card->id = card_number++;
89 xbt_dict_set(network_card_set, card_name, card, network_card_free);
94 static void route_new(int src_id, int dst_id, char **links, int nb_link)
96 network_link_DASSF_t *link_list = NULL;
99 ROUTE_SIZE(src_id, dst_id) = nb_link;
100 link_list = (ROUTE(src_id, dst_id) = xbt_new0(network_link_DASSF_t, nb_link));
101 for (i = 0; i < nb_link; i++) {
102 xbt_dict_get(network_link_set, links[i], (void *) &(link_list[i]));
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 tmgr_trace_t state_trace;
118 name = xbt_strdup(A_network_link_name);
119 surf_parse_get_double(&bw_initial,A_network_link_bandwidth);
120 surf_parse_get_trace(&bw_trace, A_network_link_bandwidth_file);
121 surf_parse_get_double(&lat_initial,A_network_link_latency);
122 surf_parse_get_trace(&lat_trace, A_network_link_latency_file);
124 xbt_assert0((A_network_link_state==A_network_link_state_ON)||
125 (A_network_link_state==A_network_link_state_OFF),
127 if (A_network_link_state==A_network_link_state_ON)
128 state_initial = SURF_NETWORK_LINK_ON;
129 if (A_network_link_state==A_network_link_state_OFF)
130 state_initial = SURF_NETWORK_LINK_OFF;
131 surf_parse_get_trace(&state_trace,A_network_link_state_file);
133 network_link_new(name, bw_initial, bw_trace,
134 lat_initial, lat_trace, state_initial, state_trace);
137 static int nb_link = 0;
138 static char **link_name = NULL;
139 static int src_id = -1;
140 static int dst_id = -1;
142 static void parse_route_set_endpoints(void)
144 src_id = network_card_new(A_route_src);
145 dst_id = network_card_new(A_route_dst);
150 static void parse_route_elem(void)
153 link_name = xbt_realloc(link_name, (nb_link) * sizeof(char *));
154 link_name[(nb_link) - 1] = xbt_strdup(A_route_element_name);
157 static void parse_route_set_route(void)
159 route_new(src_id, dst_id, link_name, nb_link);
162 static void parse_file(const char *file)
164 /* Figuring out the network links */
165 surf_parse_reset_parser();
166 ETag_network_link_fun=parse_network_link;
167 surf_parse_open(file);
168 xbt_assert1((!surf_parse()),"Parse error in %s",file);
171 /* Figuring out the network cards used */
172 surf_parse_reset_parser();
173 STag_route_fun=parse_route_set_endpoints;
174 surf_parse_open(file);
175 xbt_assert1((!surf_parse()),"Parse error in %s",file);
178 create_routing_table();
180 /* Building the routes */
181 surf_parse_reset_parser();
182 STag_route_fun=parse_route_set_endpoints;
183 ETag_route_element_fun=parse_route_elem;
184 ETag_route_fun=parse_route_set_route;
185 surf_parse_open(file);
186 xbt_assert1((!surf_parse()),"Parse error in %s",file);
190 static void *name_service(const char *name)
192 network_card_DASSF_t card = NULL;
194 xbt_dict_get(network_card_set, name, (void *) &card);
199 static const char *get_resource_name(void *resource_id)
201 return ((network_card_DASSF_t) resource_id)->name;
204 static int resource_used(void *resource_id)
206 return lmm_constraint_used(maxmin_system,
207 ((network_link_DASSF_t) resource_id)->constraint);
210 static void action_free(surf_action_t action)
212 xbt_swag_remove(action, action->state_set);
213 if(((surf_action_network_DASSF_t)action)->variable)
214 lmm_variable_free(maxmin_system, ((surf_action_network_DASSF_t)action)->variable);
220 static void action_cancel(surf_action_t action)
225 static void action_recycle(surf_action_t action)
230 static void action_change_state(surf_action_t action,
231 e_surf_action_state_t state)
233 if((state==SURF_ACTION_DONE) || (state==SURF_ACTION_FAILED))
234 if(((surf_action_network_DASSF_t)action)->variable) {
235 lmm_variable_disable(maxmin_system, ((surf_action_network_DASSF_t)action)->variable);
236 ((surf_action_network_DASSF_t)action)->variable = NULL;
239 surf_action_change_state(action, state);
243 static double share_resources(double now)
245 s_surf_action_network_DASSF_t s_action;
246 surf_action_network_DASSF_t action = NULL;
247 xbt_swag_t running_actions = surf_network_resource->common_public->states.running_action_set;
248 double min = generic_maxmin_share_resources(running_actions,
249 xbt_swag_offset(s_action, variable));
251 xbt_swag_foreach(action, running_actions) {
252 if(action->latency>0) {
253 if(min<0) min = action->latency;
254 else if (action->latency<min) min = action->latency;
261 static void update_actions_state(double now, double delta)
264 surf_action_network_DASSF_t action = NULL;
265 surf_action_network_DASSF_t next_action = NULL;
266 xbt_swag_t running_actions =
267 surf_network_resource->common_public->states.running_action_set;
268 xbt_swag_t failed_actions =
269 surf_network_resource->common_public->states.failed_action_set;
271 xbt_swag_foreach_safe(action, next_action, running_actions) {
273 if (action->latency > 0) {
274 if (action->latency > deltap) {
275 surf_double_update(&(action->latency),deltap);
278 surf_double_update(&(deltap), action->latency);
279 action->latency = 0.0;
281 if ((action->latency == 0.0) && !(action->suspended))
282 lmm_update_variable_weight(maxmin_system, action->variable, 1.0);
284 surf_double_update(&(action->generic_action.remains),
285 lmm_variable_getvalue(action->variable) * deltap);
286 if (action->generic_action.max_duration != NO_MAX_DURATION)
287 surf_double_update(&(action->generic_action.max_duration), delta);
289 /* if(action->generic_action.remains<.00001) action->generic_action.remains=0; */
291 if (action->generic_action.remains <= 0) {
292 action->generic_action.finish = surf_get_clock();
293 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
294 } else if ((action->generic_action.max_duration != NO_MAX_DURATION) &&
295 (action->generic_action.max_duration <= 0)) {
296 action->generic_action.finish = surf_get_clock();
297 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
298 } else { /* Need to check that none of the resource has failed */
299 lmm_constraint_t cnst = NULL;
301 network_link_DASSF_t nw_link = NULL;
304 lmm_get_cnst_from_var(maxmin_system, action->variable,
306 nw_link = lmm_constraint_id(cnst);
307 if (nw_link->state_current == SURF_NETWORK_LINK_OFF) {
308 action->generic_action.finish = surf_get_clock();
309 action_change_state((surf_action_t) action, SURF_ACTION_FAILED);
319 static void update_resource_state(void *id,
320 tmgr_trace_event_t event_type,
323 network_link_DASSF_t nw_link = id;
324 /* printf("[" "%lg" "] Asking to update network card \"%s\" with value " */
325 /* "%lg" " for event %p\n", surf_get_clock(), nw_link->name, */
326 /* value, event_type); */
328 if (event_type == nw_link->bw_event) {
329 nw_link->bw_current = value;
330 lmm_update_constraint_bound(maxmin_system, nw_link->constraint,
331 nw_link->bw_current);
332 } else if (event_type == nw_link->lat_event) {
333 double delta = value - nw_link->lat_current;
334 lmm_variable_t var = NULL;
335 surf_action_network_DASSF_t action = NULL;
337 nw_link->lat_current = value;
338 while (lmm_get_var_from_cnst(maxmin_system, nw_link->constraint, &var)) {
339 action = lmm_variable_id(var);
340 action->lat_current += delta;
342 lmm_update_variable_bound(maxmin_system, action->variable,
343 SG_TCP_CTE_GAMMA / action->lat_current);
345 lmm_update_variable_bound(maxmin_system, action->variable,
346 min(action->rate,SG_TCP_CTE_GAMMA / action->lat_current));
348 } else if (event_type == nw_link->state_event) {
350 nw_link->state_current = SURF_NETWORK_LINK_ON;
352 nw_link->state_current = SURF_NETWORK_LINK_OFF;
354 CRITICAL0("Unknown event ! \n");
361 static surf_action_t communicate(void *src, void *dst, double size, double rate)
363 surf_action_network_DASSF_t action = NULL;
364 network_card_DASSF_t card_src = src;
365 network_card_DASSF_t card_dst = dst;
366 int route_size = ROUTE_SIZE(card_src->id, card_dst->id);
367 network_link_DASSF_t *route = ROUTE(card_src->id, card_dst->id);
370 action = xbt_new0(s_surf_action_network_DASSF_t, 1);
372 action->generic_action.cost = size;
373 action->generic_action.remains = size;
374 action->generic_action.max_duration = NO_MAX_DURATION;
375 action->generic_action.start = -1.0;
376 action->generic_action.finish = -1.0;
377 action->generic_action.resource_type =
378 (surf_resource_t) surf_network_resource;
380 action->generic_action.state_set =
381 surf_network_resource->common_public->states.running_action_set;
383 xbt_swag_insert(action, action->generic_action.state_set);
386 action->latency = 0.0;
387 for (i = 0; i < route_size; i++)
388 action->latency += route[i]->lat_current;
389 action->lat_current = action->latency;
391 if(action->latency>0)
392 action->variable = lmm_variable_new(maxmin_system, action, 0.0, -1.0,
395 action->variable = lmm_variable_new(maxmin_system, action, 1.0, -1.0,
399 lmm_update_variable_bound(maxmin_system, action->variable,
400 SG_TCP_CTE_GAMMA / action->lat_current);
402 lmm_update_variable_bound(maxmin_system, action->variable,
403 min(action->rate,SG_TCP_CTE_GAMMA / action->lat_current));
405 if(route_size == 0) {
406 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
409 for (i = 0; i < route_size; i++)
410 lmm_expand(maxmin_system, route[i]->constraint, action->variable, 1.0);
412 return (surf_action_t) action;
415 static void action_suspend(surf_action_t action)
417 ((surf_action_network_DASSF_t) action)->suspended = 1;
418 lmm_update_variable_weight(maxmin_system,
419 ((surf_action_network_DASSF_t) action)->variable, 0.0);
422 static void action_resume(surf_action_t action)
424 lmm_update_variable_weight(maxmin_system,
425 ((surf_action_network_DASSF_t) action)->variable, 1.0);
426 ((surf_action_network_DASSF_t) action)->suspended = 0;
429 static int action_is_suspended(surf_action_t action)
431 return ((surf_action_network_DASSF_t) action)->suspended;
434 static void finalize(void)
438 xbt_dict_free(&network_card_set);
439 xbt_dict_free(&network_link_set);
440 xbt_swag_free(surf_network_resource->common_public->states.
442 xbt_swag_free(surf_network_resource->common_public->states.
444 xbt_swag_free(surf_network_resource->common_public->states.
446 xbt_swag_free(surf_network_resource->common_public->states.
448 free(surf_network_resource->common_public);
449 free(surf_network_resource->common_private);
450 free(surf_network_resource->extension_public);
452 free(surf_network_resource);
453 surf_network_resource = NULL;
455 for (i = 0; i < card_number; i++)
456 for (j = 0; j < card_number; j++)
459 routing_table = NULL;
460 free(routing_table_size);
461 routing_table_size = NULL;
465 static void surf_network_resource_init_internal(void)
467 s_surf_action_t action;
469 surf_network_resource = xbt_new0(s_surf_network_resource_t, 1);
471 surf_network_resource->common_private =
472 xbt_new0(s_surf_resource_private_t, 1);
473 surf_network_resource->common_public =
474 xbt_new0(s_surf_resource_public_t, 1);
475 surf_network_resource->extension_public =
476 xbt_new0(s_surf_network_resource_extension_public_t, 1);
478 surf_network_resource->common_public->states.ready_action_set =
479 xbt_swag_new(xbt_swag_offset(action, state_hookup));
480 surf_network_resource->common_public->states.running_action_set =
481 xbt_swag_new(xbt_swag_offset(action, state_hookup));
482 surf_network_resource->common_public->states.failed_action_set =
483 xbt_swag_new(xbt_swag_offset(action, state_hookup));
484 surf_network_resource->common_public->states.done_action_set =
485 xbt_swag_new(xbt_swag_offset(action, state_hookup));
487 surf_network_resource->common_public->name_service = name_service;
488 surf_network_resource->common_public->get_resource_name =
490 surf_network_resource->common_public->action_get_state =
491 surf_action_get_state;
492 surf_network_resource->common_public->action_free = action_free;
493 surf_network_resource->common_public->action_cancel = action_cancel;
494 surf_network_resource->common_public->action_recycle = action_recycle;
495 surf_network_resource->common_public->action_change_state =
497 surf_network_resource->common_public->action_set_data = surf_action_set_data;
498 surf_network_resource->common_public->name = "network";
500 surf_network_resource->common_private->resource_used = resource_used;
501 surf_network_resource->common_private->share_resources = share_resources;
502 surf_network_resource->common_private->update_actions_state =
503 update_actions_state;
504 surf_network_resource->common_private->update_resource_state =
505 update_resource_state;
506 surf_network_resource->common_private->finalize = finalize;
508 surf_network_resource->common_public->suspend = action_suspend;
509 surf_network_resource->common_public->resume = action_resume;
510 surf_network_resource->common_public->is_suspended = action_is_suspended;
512 surf_network_resource->extension_public->communicate = communicate;
514 network_link_set = xbt_dict_new();
515 network_card_set = xbt_dict_new();
517 xbt_assert0(maxmin_system, "surf_init has to be called first!");
520 /***************************************************************************/
521 /* The nice Hack by Henri to use DASSF from within SURF ! */
522 /***************************************************************************/
523 /* I put this prototype here for now but it will have to go in
524 src/include/surf.h when it will be functionnal. */
525 void surf_network_resource_init_DASSF(const char *filename);
527 void surf_network_resource_init_DASSF(const char *filename)
529 if (surf_network_resource)
531 surf_network_resource_init_internal();
532 parse_file(filename);
533 xbt_dynar_push(resource_list, &surf_network_resource);