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"
10 #define SG_TCP_CTE_GAMMA 20000.0
12 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(network, surf,
13 "Logging specific to the SURF network module");
15 surf_network_resource_t surf_network_resource = NULL;
17 static xbt_dict_t network_link_set = NULL;
18 xbt_dict_t network_card_set = NULL;
20 static int card_number = 0;
21 static network_link_CM02_t **routing_table = NULL;
22 static int *routing_table_size = NULL;
24 #define ROUTE(i,j) routing_table[(i)+(j)*card_number]
25 #define ROUTE_SIZE(i,j) routing_table_size[(i)+(j)*card_number]
27 static void create_routing_table(void)
29 routing_table = xbt_new0(network_link_CM02_t *, card_number * card_number);
30 routing_table_size = xbt_new0(int, card_number * card_number);
33 static void network_link_free(void *nw_link)
35 free(((network_link_CM02_t)nw_link)->name);
39 static network_link_CM02_t network_link_new(char *name,
41 tmgr_trace_t bw_trace,
43 tmgr_trace_t lat_trace,
44 e_surf_network_link_state_t
46 tmgr_trace_t state_trace)
48 network_link_CM02_t nw_link = xbt_new0(s_network_link_CM02_t, 1);
51 nw_link->resource = (surf_resource_t) surf_network_resource;
53 nw_link->bw_current = bw_initial;
56 tmgr_history_add_trace(history, bw_trace, 0.0, 0, nw_link);
57 nw_link->lat_current = lat_initial;
60 tmgr_history_add_trace(history, lat_trace, 0.0, 0, nw_link);
61 nw_link->state_current = state_initial;
63 nw_link->state_event =
64 tmgr_history_add_trace(history, state_trace, 0.0, 0, nw_link);
67 lmm_constraint_new(maxmin_system, nw_link, nw_link->bw_current);
69 xbt_dict_set(network_link_set, name, nw_link, network_link_free);
74 static void network_card_free(void *nw_card)
76 free(((network_card_CM02_t)nw_card)->name);
80 static int network_card_new(const char *card_name)
82 network_card_CM02_t card = NULL;
84 xbt_dict_get(network_card_set, card_name, (void *) &card);
87 card = xbt_new0(s_network_card_CM02_t, 1);
88 card->name = xbt_strdup(card_name);
89 card->id = card_number++;
90 xbt_dict_set(network_card_set, card_name, card, network_card_free);
95 static void route_new(int src_id, int dst_id, char **links, int nb_link)
97 network_link_CM02_t *link_list = NULL;
100 ROUTE_SIZE(src_id, dst_id) = nb_link;
101 link_list = (ROUTE(src_id, dst_id) = xbt_new0(network_link_CM02_t, nb_link));
102 for (i = 0; i < nb_link; i++) {
103 xbt_dict_get(network_link_set, links[i], (void *) &(link_list[i]));
109 static void parse_network_link(void)
113 tmgr_trace_t bw_trace;
115 tmgr_trace_t lat_trace;
116 e_surf_network_link_state_t state_initial = SURF_NETWORK_LINK_ON;
117 tmgr_trace_t state_trace;
119 name = xbt_strdup(A_network_link_name);
120 surf_parse_get_double(&bw_initial,A_network_link_bandwidth);
121 surf_parse_get_trace(&bw_trace, A_network_link_bandwidth_file);
122 surf_parse_get_double(&lat_initial,A_network_link_latency);
123 surf_parse_get_trace(&lat_trace, A_network_link_latency_file);
125 xbt_assert0((A_network_link_state==A_network_link_state_ON)||
126 (A_network_link_state==A_network_link_state_OFF),
128 if (A_network_link_state==A_network_link_state_ON)
129 state_initial = SURF_NETWORK_LINK_ON;
130 if (A_network_link_state==A_network_link_state_OFF)
131 state_initial = SURF_NETWORK_LINK_OFF;
132 surf_parse_get_trace(&state_trace,A_network_link_state_file);
134 network_link_new(name, bw_initial, bw_trace,
135 lat_initial, lat_trace, state_initial, state_trace);
138 static int nb_link = 0;
139 static char **link_name = NULL;
140 static int src_id = -1;
141 static int dst_id = -1;
143 static void parse_route_set_endpoints(void)
145 src_id = network_card_new(A_route_src);
146 dst_id = network_card_new(A_route_dst);
151 static void parse_route_elem(void)
154 link_name = xbt_realloc(link_name, (nb_link) * sizeof(char *));
155 link_name[(nb_link) - 1] = xbt_strdup(A_route_element_name);
158 static void parse_route_set_route(void)
160 route_new(src_id, dst_id, link_name, nb_link);
163 static void parse_file(const char *file)
165 /* Figuring out the network links */
166 surf_parse_reset_parser();
167 ETag_network_link_fun=parse_network_link;
168 surf_parse_open(file);
169 xbt_assert1((!surf_parse()),"Parse error in %s",file);
172 /* Figuring out the network cards used */
173 surf_parse_reset_parser();
174 STag_route_fun=parse_route_set_endpoints;
175 surf_parse_open(file);
176 xbt_assert1((!surf_parse()),"Parse error in %s",file);
179 create_routing_table();
181 /* Building the routes */
182 surf_parse_reset_parser();
183 STag_route_fun=parse_route_set_endpoints;
184 ETag_route_element_fun=parse_route_elem;
185 ETag_route_fun=parse_route_set_route;
186 surf_parse_open(file);
187 xbt_assert1((!surf_parse()),"Parse error in %s",file);
191 static void *name_service(const char *name)
193 network_card_CM02_t card = NULL;
195 xbt_dict_get(network_card_set, name, (void *) &card);
200 static const char *get_resource_name(void *resource_id)
202 return ((network_card_CM02_t) resource_id)->name;
205 static int resource_used(void *resource_id)
207 return lmm_constraint_used(maxmin_system,
208 ((network_link_CM02_t) resource_id)->constraint);
211 static int action_free(surf_action_t action)
215 xbt_swag_remove(action, action->state_set);
216 if(((surf_action_network_CM02_t)action)->variable)
217 lmm_variable_free(maxmin_system, ((surf_action_network_CM02_t)action)->variable);
224 static void action_use(surf_action_t action)
229 static void action_cancel(surf_action_t action)
234 static void action_recycle(surf_action_t action)
239 static void action_change_state(surf_action_t action,
240 e_surf_action_state_t state)
242 /* if((state==SURF_ACTION_DONE) || (state==SURF_ACTION_FAILED)) */
243 /* if(((surf_action_network_CM02_t)action)->variable) { */
244 /* lmm_variable_disable(maxmin_system, ((surf_action_network_CM02_t)action)->variable); */
245 /* ((surf_action_network_CM02_t)action)->variable = NULL; */
248 surf_action_change_state(action, state);
252 static double share_resources(double now)
254 s_surf_action_network_CM02_t s_action;
255 surf_action_network_CM02_t action = NULL;
256 xbt_swag_t running_actions = surf_network_resource->common_public->states.running_action_set;
257 double min = generic_maxmin_share_resources(running_actions,
258 xbt_swag_offset(s_action, variable));
260 xbt_swag_foreach(action, running_actions) {
261 if(action->latency>0) {
262 if(min<0) min = action->latency;
263 else if (action->latency<min) min = action->latency;
270 static void update_actions_state(double now, double delta)
273 surf_action_network_CM02_t action = NULL;
274 surf_action_network_CM02_t next_action = NULL;
275 xbt_swag_t running_actions =
276 surf_network_resource->common_public->states.running_action_set;
277 xbt_swag_t failed_actions =
278 surf_network_resource->common_public->states.failed_action_set;
280 xbt_swag_foreach_safe(action, next_action, running_actions) {
282 if (action->latency > 0) {
283 if (action->latency > deltap) {
284 surf_double_update(&(action->latency),deltap);
287 surf_double_update(&(deltap), action->latency);
288 action->latency = 0.0;
290 if ((action->latency == 0.0) && !(action->suspended))
291 lmm_update_variable_weight(maxmin_system, action->variable, 1.0);
293 surf_double_update(&(action->generic_action.remains),
294 lmm_variable_getvalue(action->variable) * deltap);
295 if (action->generic_action.max_duration != NO_MAX_DURATION)
296 surf_double_update(&(action->generic_action.max_duration), delta);
298 /* if(action->generic_action.remains<.00001) action->generic_action.remains=0; */
300 if (action->generic_action.remains <= 0) {
301 action->generic_action.finish = surf_get_clock();
302 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
303 } else if ((action->generic_action.max_duration != NO_MAX_DURATION) &&
304 (action->generic_action.max_duration <= 0)) {
305 action->generic_action.finish = surf_get_clock();
306 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
307 } else { /* Need to check that none of the resource has failed */
308 lmm_constraint_t cnst = NULL;
310 network_link_CM02_t nw_link = NULL;
313 lmm_get_cnst_from_var(maxmin_system, action->variable,
315 nw_link = lmm_constraint_id(cnst);
316 if (nw_link->state_current == SURF_NETWORK_LINK_OFF) {
317 action->generic_action.finish = surf_get_clock();
318 action_change_state((surf_action_t) action, SURF_ACTION_FAILED);
328 static void update_resource_state(void *id,
329 tmgr_trace_event_t event_type,
332 network_link_CM02_t nw_link = id;
333 /* printf("[" "%lg" "] Asking to update network card \"%s\" with value " */
334 /* "%lg" " for event %p\n", surf_get_clock(), nw_link->name, */
335 /* value, event_type); */
337 if (event_type == nw_link->bw_event) {
338 nw_link->bw_current = value;
339 lmm_update_constraint_bound(maxmin_system, nw_link->constraint,
340 nw_link->bw_current);
341 } else if (event_type == nw_link->lat_event) {
342 double delta = value - nw_link->lat_current;
343 lmm_variable_t var = NULL;
344 surf_action_network_CM02_t action = NULL;
346 nw_link->lat_current = value;
347 while (lmm_get_var_from_cnst(maxmin_system, nw_link->constraint, &var)) {
348 action = lmm_variable_id(var);
349 action->lat_current += delta;
351 lmm_update_variable_bound(maxmin_system, action->variable,
352 SG_TCP_CTE_GAMMA / action->lat_current);
354 lmm_update_variable_bound(maxmin_system, action->variable,
355 min(action->rate,SG_TCP_CTE_GAMMA / action->lat_current));
357 } else if (event_type == nw_link->state_event) {
359 nw_link->state_current = SURF_NETWORK_LINK_ON;
361 nw_link->state_current = SURF_NETWORK_LINK_OFF;
363 CRITICAL0("Unknown event ! \n");
370 static surf_action_t communicate(void *src, void *dst, double size, double rate)
372 surf_action_network_CM02_t action = NULL;
373 network_card_CM02_t card_src = src;
374 network_card_CM02_t card_dst = dst;
375 int route_size = ROUTE_SIZE(card_src->id, card_dst->id);
376 network_link_CM02_t *route = ROUTE(card_src->id, card_dst->id);
379 action = xbt_new0(s_surf_action_network_CM02_t, 1);
381 action->generic_action.using = 1;
382 action->generic_action.cost = size;
383 action->generic_action.remains = size;
384 action->generic_action.max_duration = NO_MAX_DURATION;
385 action->generic_action.start = -1.0;
386 action->generic_action.finish = -1.0;
387 action->generic_action.resource_type =
388 (surf_resource_t) surf_network_resource;
389 action->suspended = 0; /* Should be useless because of the
390 calloc but it seems to help valgrind... */
391 action->generic_action.state_set =
392 surf_network_resource->common_public->states.running_action_set;
394 xbt_swag_insert(action, action->generic_action.state_set);
397 action->latency = 0.0;
398 for (i = 0; i < route_size; i++)
399 action->latency += route[i]->lat_current;
400 action->lat_current = action->latency;
402 if(action->latency>0)
403 action->variable = lmm_variable_new(maxmin_system, action, 0.0, -1.0,
406 action->variable = lmm_variable_new(maxmin_system, action, 1.0, -1.0,
410 lmm_update_variable_bound(maxmin_system, action->variable,
411 SG_TCP_CTE_GAMMA / action->lat_current);
413 lmm_update_variable_bound(maxmin_system, action->variable,
414 min(action->rate,SG_TCP_CTE_GAMMA / action->lat_current));
416 if(route_size == 0) {
417 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
420 for (i = 0; i < route_size; i++)
421 lmm_expand(maxmin_system, route[i]->constraint, action->variable, 1.0);
423 return (surf_action_t) action;
426 static void action_suspend(surf_action_t action)
428 ((surf_action_network_CM02_t) action)->suspended = 1;
429 lmm_update_variable_weight(maxmin_system,
430 ((surf_action_network_CM02_t) action)->variable, 0.0);
433 static void action_resume(surf_action_t action)
435 lmm_update_variable_weight(maxmin_system,
436 ((surf_action_network_CM02_t) action)->variable, 1.0);
437 ((surf_action_network_CM02_t) action)->suspended = 0;
440 static int action_is_suspended(surf_action_t action)
442 return ((surf_action_network_CM02_t) action)->suspended;
445 static void action_set_max_duration(surf_action_t action, double duration)
447 action->max_duration = duration;
450 static void finalize(void)
454 xbt_dict_free(&network_card_set);
455 xbt_dict_free(&network_link_set);
456 xbt_swag_free(surf_network_resource->common_public->states.
458 xbt_swag_free(surf_network_resource->common_public->states.
460 xbt_swag_free(surf_network_resource->common_public->states.
462 xbt_swag_free(surf_network_resource->common_public->states.
464 free(surf_network_resource->common_public);
465 free(surf_network_resource->common_private);
466 free(surf_network_resource->extension_public);
468 free(surf_network_resource);
469 surf_network_resource = NULL;
471 for (i = 0; i < card_number; i++)
472 for (j = 0; j < card_number; j++)
475 routing_table = NULL;
476 free(routing_table_size);
477 routing_table_size = NULL;
481 static void surf_network_resource_init_internal(void)
483 s_surf_action_t action;
485 surf_network_resource = xbt_new0(s_surf_network_resource_t, 1);
487 surf_network_resource->common_private =
488 xbt_new0(s_surf_resource_private_t, 1);
489 surf_network_resource->common_public =
490 xbt_new0(s_surf_resource_public_t, 1);
491 surf_network_resource->extension_public =
492 xbt_new0(s_surf_network_resource_extension_public_t, 1);
494 surf_network_resource->common_public->states.ready_action_set =
495 xbt_swag_new(xbt_swag_offset(action, state_hookup));
496 surf_network_resource->common_public->states.running_action_set =
497 xbt_swag_new(xbt_swag_offset(action, state_hookup));
498 surf_network_resource->common_public->states.failed_action_set =
499 xbt_swag_new(xbt_swag_offset(action, state_hookup));
500 surf_network_resource->common_public->states.done_action_set =
501 xbt_swag_new(xbt_swag_offset(action, state_hookup));
503 surf_network_resource->common_public->name_service = name_service;
504 surf_network_resource->common_public->get_resource_name =
506 surf_network_resource->common_public->action_get_state =
507 surf_action_get_state;
508 surf_network_resource->common_public->action_free = action_free;
509 surf_network_resource->common_public->action_use = action_use;
510 surf_network_resource->common_public->action_cancel = action_cancel;
511 surf_network_resource->common_public->action_recycle = action_recycle;
512 surf_network_resource->common_public->action_change_state =
514 surf_network_resource->common_public->action_set_data = surf_action_set_data;
515 surf_network_resource->common_public->name = "network";
517 surf_network_resource->common_private->resource_used = resource_used;
518 surf_network_resource->common_private->share_resources = share_resources;
519 surf_network_resource->common_private->update_actions_state =
520 update_actions_state;
521 surf_network_resource->common_private->update_resource_state =
522 update_resource_state;
523 surf_network_resource->common_private->finalize = finalize;
525 surf_network_resource->common_public->suspend = action_suspend;
526 surf_network_resource->common_public->resume = action_resume;
527 surf_network_resource->common_public->is_suspended = action_is_suspended;
528 surf_cpu_resource->common_public->set_max_duration = action_set_max_duration;
530 surf_network_resource->extension_public->communicate = communicate;
532 network_link_set = xbt_dict_new();
533 network_card_set = xbt_dict_new();
535 xbt_assert0(maxmin_system, "surf_init has to be called first!");
538 /***************************************************************************/
539 /* The nice TCP sharing model designed by Loris Marchal and Henri Casanova */
540 /***************************************************************************/
541 /* @TechReport{ rr-lip2002-40, */
542 /* author = {Henri Casanova and Loris Marchal}, */
543 /* institution = {LIP}, */
544 /* title = {A Network Model for Simulation of Grid Application}, */
545 /* number = {2002-40}, */
549 void surf_network_resource_init_CM02(const char *filename)
551 if (surf_network_resource)
553 surf_network_resource_init_internal();
554 parse_file(filename);
555 xbt_dynar_push(resource_list, &surf_network_resource);