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 = xbt_dict_get_or_null(network_card_set, card_name);
84 card = xbt_new0(s_network_card_DASSF_t, 1);
85 card->name = xbt_strdup(card_name);
86 card->id = card_number++;
87 xbt_dict_set(network_card_set, card_name, card, network_card_free);
92 static void route_new(int src_id, int dst_id, char **links, int nb_link)
94 network_link_DASSF_t *link_list = NULL;
97 ROUTE_SIZE(src_id, dst_id) = nb_link;
98 link_list = (ROUTE(src_id, dst_id) = xbt_new0(network_link_DASSF_t, nb_link));
99 for (i = 0; i < nb_link; i++) {
100 link_list[i] = xbt_dict_get_or_null(network_link_set, links[i]);
106 static void parse_network_link(void)
110 tmgr_trace_t bw_trace;
112 tmgr_trace_t lat_trace;
113 e_surf_network_link_state_t state_initial = SURF_NETWORK_LINK_ON;
114 tmgr_trace_t state_trace;
116 name = xbt_strdup(A_network_link_name);
117 surf_parse_get_double(&bw_initial,A_network_link_bandwidth);
118 surf_parse_get_trace(&bw_trace, A_network_link_bandwidth_file);
119 surf_parse_get_double(&lat_initial,A_network_link_latency);
120 surf_parse_get_trace(&lat_trace, A_network_link_latency_file);
122 xbt_assert0((A_network_link_state==A_network_link_state_ON)||
123 (A_network_link_state==A_network_link_state_OFF),
125 if (A_network_link_state==A_network_link_state_ON)
126 state_initial = SURF_NETWORK_LINK_ON;
127 if (A_network_link_state==A_network_link_state_OFF)
128 state_initial = SURF_NETWORK_LINK_OFF;
129 surf_parse_get_trace(&state_trace,A_network_link_state_file);
131 network_link_new(name, bw_initial, bw_trace,
132 lat_initial, lat_trace, state_initial, state_trace);
135 static int nb_link = 0;
136 static char **link_name = NULL;
137 static int src_id = -1;
138 static int dst_id = -1;
140 static void parse_route_set_endpoints(void)
142 src_id = network_card_new(A_route_src);
143 dst_id = network_card_new(A_route_dst);
148 static void parse_route_elem(void)
151 link_name = xbt_realloc(link_name, (nb_link) * sizeof(char *));
152 link_name[(nb_link) - 1] = xbt_strdup(A_route_element_name);
155 static void parse_route_set_route(void)
157 route_new(src_id, dst_id, link_name, nb_link);
160 static void parse_file(const char *file)
162 /* Figuring out the network links */
163 surf_parse_reset_parser();
164 ETag_network_link_fun=parse_network_link;
165 surf_parse_open(file);
166 xbt_assert1((!surf_parse()),"Parse error in %s",file);
169 /* Figuring out the network cards used */
170 surf_parse_reset_parser();
171 STag_route_fun=parse_route_set_endpoints;
172 surf_parse_open(file);
173 xbt_assert1((!surf_parse()),"Parse error in %s",file);
176 create_routing_table();
178 /* Building the routes */
179 surf_parse_reset_parser();
180 STag_route_fun=parse_route_set_endpoints;
181 ETag_route_element_fun=parse_route_elem;
182 ETag_route_fun=parse_route_set_route;
183 surf_parse_open(file);
184 xbt_assert1((!surf_parse()),"Parse error in %s",file);
188 static void *name_service(const char *name)
190 return xbt_dict_get_or_null(network_card_set, name);
193 static const char *get_resource_name(void *resource_id)
195 return ((network_card_DASSF_t) resource_id)->name;
198 static int resource_used(void *resource_id)
200 return lmm_constraint_used(maxmin_system,
201 ((network_link_DASSF_t) resource_id)->constraint);
204 static int action_free(surf_action_t action)
208 xbt_swag_remove(action, action->state_set);
209 if(((surf_action_network_DASSF_t)action)->variable)
210 lmm_variable_free(maxmin_system, ((surf_action_network_DASSF_t)action)->variable);
216 static void action_cancel(surf_action_t action)
221 static void action_recycle(surf_action_t action)
226 static void action_change_state(surf_action_t action,
227 e_surf_action_state_t state)
229 /* if((state==SURF_ACTION_DONE) || (state==SURF_ACTION_FAILED)) */
230 /* if(((surf_action_network_DASSF_t)action)->variable) { */
231 /* lmm_variable_disable(maxmin_system, ((surf_action_network_DASSF_t)action)->variable); */
232 /* ((surf_action_network_DASSF_t)action)->variable = NULL; */
235 surf_action_change_state(action, state);
239 static double share_resources(double now)
241 s_surf_action_network_DASSF_t s_action;
242 surf_action_network_DASSF_t action = NULL;
243 xbt_swag_t running_actions = surf_network_resource->common_public->states.running_action_set;
244 double min = generic_maxmin_share_resources(running_actions,
245 xbt_swag_offset(s_action, variable));
247 xbt_swag_foreach(action, running_actions) {
248 if(action->latency>0) {
249 if(min<0) min = action->latency;
250 else if (action->latency<min) min = action->latency;
257 static void update_actions_state(double now, double delta)
260 surf_action_network_DASSF_t action = NULL;
261 surf_action_network_DASSF_t next_action = NULL;
262 xbt_swag_t running_actions =
263 surf_network_resource->common_public->states.running_action_set;
265 xbt_swag_t failed_actions =
266 surf_network_resource->common_public->states.failed_action_set;
269 xbt_swag_foreach_safe(action, next_action, running_actions) {
271 if (action->latency > 0) {
272 if (action->latency > deltap) {
273 surf_double_update(&(action->latency),deltap);
276 surf_double_update(&(deltap), action->latency);
277 action->latency = 0.0;
279 if ((action->latency == 0.0) && !(action->suspended))
280 lmm_update_variable_weight(maxmin_system, action->variable, 1.0);
282 surf_double_update(&(action->generic_action.remains),
283 lmm_variable_getvalue(action->variable) * deltap);
284 if (action->generic_action.max_duration != NO_MAX_DURATION)
285 surf_double_update(&(action->generic_action.max_duration), delta);
287 /* if(action->generic_action.remains<.00001) action->generic_action.remains=0; */
289 if (action->generic_action.remains <= 0) {
290 action->generic_action.finish = surf_get_clock();
291 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
292 } else if ((action->generic_action.max_duration != NO_MAX_DURATION) &&
293 (action->generic_action.max_duration <= 0)) {
294 action->generic_action.finish = surf_get_clock();
295 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
296 } else { /* Need to check that none of the resource has failed */
297 lmm_constraint_t cnst = NULL;
299 network_link_DASSF_t nw_link = NULL;
302 lmm_get_cnst_from_var(maxmin_system, action->variable,
304 nw_link = lmm_constraint_id(cnst);
305 if (nw_link->state_current == SURF_NETWORK_LINK_OFF) {
306 action->generic_action.finish = surf_get_clock();
307 action_change_state((surf_action_t) action, SURF_ACTION_FAILED);
317 static void update_resource_state(void *id,
318 tmgr_trace_event_t event_type,
321 network_link_DASSF_t nw_link = id;
322 /* printf("[" "%lg" "] Asking to update network card \"%s\" with value " */
323 /* "%lg" " for event %p\n", surf_get_clock(), nw_link->name, */
324 /* value, event_type); */
326 if (event_type == nw_link->bw_event) {
327 nw_link->bw_current = value;
328 lmm_update_constraint_bound(maxmin_system, nw_link->constraint,
329 nw_link->bw_current);
330 } else if (event_type == nw_link->lat_event) {
331 double delta = value - nw_link->lat_current;
332 lmm_variable_t var = NULL;
333 surf_action_network_DASSF_t action = NULL;
335 nw_link->lat_current = value;
336 while (lmm_get_var_from_cnst(maxmin_system, nw_link->constraint, &var)) {
337 action = lmm_variable_id(var);
338 action->lat_current += delta;
340 lmm_update_variable_bound(maxmin_system, action->variable,
341 SG_TCP_CTE_GAMMA / action->lat_current);
343 lmm_update_variable_bound(maxmin_system, action->variable,
344 min(action->rate,SG_TCP_CTE_GAMMA / action->lat_current));
346 } else if (event_type == nw_link->state_event) {
348 nw_link->state_current = SURF_NETWORK_LINK_ON;
350 nw_link->state_current = SURF_NETWORK_LINK_OFF;
352 CRITICAL0("Unknown event ! \n");
359 static surf_action_t communicate(void *src, void *dst, double size, double rate)
361 surf_action_network_DASSF_t action = NULL;
362 network_card_DASSF_t card_src = src;
363 network_card_DASSF_t card_dst = dst;
364 int route_size = ROUTE_SIZE(card_src->id, card_dst->id);
365 network_link_DASSF_t *route = ROUTE(card_src->id, card_dst->id);
368 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);
370 action = xbt_new0(s_surf_action_network_DASSF_t, 1);
372 action->generic_action.using = 1;
373 action->generic_action.cost = size;
374 action->generic_action.remains = size;
375 action->generic_action.max_duration = NO_MAX_DURATION;
376 action->generic_action.start = -1.0;
377 action->generic_action.finish = -1.0;
378 action->generic_action.resource_type =
379 (surf_resource_t) surf_network_resource;
381 action->generic_action.state_set =
382 surf_network_resource->common_public->states.running_action_set;
384 xbt_swag_insert(action, action->generic_action.state_set);
387 action->latency = 0.0;
388 for (i = 0; i < route_size; i++)
389 action->latency += route[i]->lat_current;
390 action->lat_current = action->latency;
392 if(action->latency>0)
393 action->variable = lmm_variable_new(maxmin_system, action, 0.0, -1.0,
396 action->variable = lmm_variable_new(maxmin_system, action, 1.0, -1.0,
400 lmm_update_variable_bound(maxmin_system, action->variable,
401 SG_TCP_CTE_GAMMA / action->lat_current);
403 lmm_update_variable_bound(maxmin_system, action->variable,
404 min(action->rate,SG_TCP_CTE_GAMMA / action->lat_current));
406 if(route_size == 0) {
407 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
410 for (i = 0; i < route_size; i++)
411 lmm_expand(maxmin_system, route[i]->constraint, action->variable, 1.0);
413 return (surf_action_t) action;
416 static void action_suspend(surf_action_t action)
418 ((surf_action_network_DASSF_t) action)->suspended = 1;
419 lmm_update_variable_weight(maxmin_system,
420 ((surf_action_network_DASSF_t) action)->variable, 0.0);
423 static void action_resume(surf_action_t action)
425 lmm_update_variable_weight(maxmin_system,
426 ((surf_action_network_DASSF_t) action)->variable, 1.0);
427 ((surf_action_network_DASSF_t) action)->suspended = 0;
430 static int action_is_suspended(surf_action_t action)
432 return ((surf_action_network_DASSF_t) action)->suspended;
435 static void finalize(void)
439 xbt_dict_free(&network_card_set);
440 xbt_dict_free(&network_link_set);
441 xbt_swag_free(surf_network_resource->common_public->states.
443 xbt_swag_free(surf_network_resource->common_public->states.
445 xbt_swag_free(surf_network_resource->common_public->states.
447 xbt_swag_free(surf_network_resource->common_public->states.
449 free(surf_network_resource->common_public);
450 free(surf_network_resource->common_private);
451 free(surf_network_resource->extension_public);
453 free(surf_network_resource);
454 surf_network_resource = NULL;
456 for (i = 0; i < card_number; i++)
457 for (j = 0; j < card_number; j++)
460 routing_table = NULL;
461 free(routing_table_size);
462 routing_table_size = NULL;
466 static void surf_network_resource_init_internal(void)
468 s_surf_action_t action;
470 surf_network_resource = xbt_new0(s_surf_network_resource_t, 1);
472 surf_network_resource->common_private =
473 xbt_new0(s_surf_resource_private_t, 1);
474 surf_network_resource->common_public =
475 xbt_new0(s_surf_resource_public_t, 1);
476 surf_network_resource->extension_public =
477 xbt_new0(s_surf_network_resource_extension_public_t, 1);
479 surf_network_resource->common_public->states.ready_action_set =
480 xbt_swag_new(xbt_swag_offset(action, state_hookup));
481 surf_network_resource->common_public->states.running_action_set =
482 xbt_swag_new(xbt_swag_offset(action, state_hookup));
483 surf_network_resource->common_public->states.failed_action_set =
484 xbt_swag_new(xbt_swag_offset(action, state_hookup));
485 surf_network_resource->common_public->states.done_action_set =
486 xbt_swag_new(xbt_swag_offset(action, state_hookup));
488 surf_network_resource->common_public->name_service = name_service;
489 surf_network_resource->common_public->get_resource_name =
491 surf_network_resource->common_public->action_get_state =
492 surf_action_get_state;
493 surf_network_resource->common_public->action_free = action_free;
494 surf_network_resource->common_public->action_cancel = action_cancel;
495 surf_network_resource->common_public->action_recycle = action_recycle;
496 surf_network_resource->common_public->action_change_state =
498 surf_network_resource->common_public->action_set_data = surf_action_set_data;
499 surf_network_resource->common_public->name = "network";
501 surf_network_resource->common_private->resource_used = resource_used;
502 surf_network_resource->common_private->share_resources = share_resources;
503 surf_network_resource->common_private->update_actions_state =
504 update_actions_state;
505 surf_network_resource->common_private->update_resource_state =
506 update_resource_state;
507 surf_network_resource->common_private->finalize = finalize;
509 surf_network_resource->common_public->suspend = action_suspend;
510 surf_network_resource->common_public->resume = action_resume;
511 surf_network_resource->common_public->is_suspended = action_is_suspended;
513 surf_network_resource->extension_public->communicate = communicate;
515 network_link_set = xbt_dict_new();
516 network_card_set = xbt_dict_new();
518 xbt_assert0(maxmin_system, "surf_init has to be called first!");
521 /***************************************************************************/
522 /* The nice Hack by Henri to use DASSF from within SURF ! */
523 /***************************************************************************/
524 /* I put this prototype here for now but it will have to go in
525 src/include/surf.h when it will be functionnal. */
526 void surf_network_resource_init_DASSF(const char *filename);
528 void surf_network_resource_init_DASSF(const char *filename)
530 if (surf_network_resource)
532 surf_network_resource_init_internal();
533 parse_file(filename);
534 xbt_dynar_push(resource_list, &surf_network_resource);