1 /* Authors: Arnaud Legrand */
3 /* This program is free software; you can redistribute it and/or modify it
4 under the terms of the license (GNU LGPL) which comes with this package. */
6 #include "network_private.h"
9 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(network, surf,
10 "Logging specific to the SURF network module");
12 surf_network_resource_t surf_network_resource = NULL;
14 static xbt_dict_t network_link_set = NULL;
15 static xbt_dict_t network_card_set = NULL;
17 static int card_number = 0;
18 static network_link_t **routing_table = NULL;
19 static int *routing_table_size = NULL;
21 #define ROUTE(i,j) routing_table[(i)+(j)*card_number]
22 #define ROUTE_SIZE(i,j) routing_table_size[(i)+(j)*card_number]
24 static void create_routing_table(void)
26 routing_table = xbt_new0(network_link_t *,card_number*card_number);
27 routing_table_size = xbt_new0(int,card_number*card_number);
30 static void network_link_free(void *nw_link)
35 static network_link_t network_link_new(const char *name,
36 xbt_maxmin_float_t bw_initial,
37 tmgr_trace_t bw_trace,
38 xbt_maxmin_float_t lat_initial,
39 tmgr_trace_t lat_trace,
40 e_surf_network_link_state_t state_initial,
41 tmgr_trace_t state_trace)
43 network_link_t nw_link = xbt_new0(s_network_link_t, 1);
46 nw_link->resource = (surf_resource_t) surf_network_resource;
48 nw_link->bw_current = bw_initial;
51 tmgr_history_add_trace(history, bw_trace, 0.0, 0, nw_link);
52 nw_link->lat_current = lat_initial;
55 tmgr_history_add_trace(history, lat_trace, 0.0, 0, nw_link);
56 nw_link->state_current = state_initial;
58 nw_link->state_event =
59 tmgr_history_add_trace(history, state_trace, 0.0, 0, nw_link);
62 lmm_constraint_new(maxmin_system, nw_link,
65 xbt_dict_set(network_link_set, name, nw_link, network_link_free);
70 static int network_card_new(const char *card_name)
72 network_card_t card = NULL;
74 xbt_dict_get(network_card_set, card_name, (void *) &card);
77 card = xbt_new0(s_network_card_t,1);
78 card->name=xbt_strdup(card_name);
79 card->id=card_number++;
80 xbt_dict_set(network_card_set, card_name, card, NULL);
85 static void route_new(int src_id, int dst_id,
86 char* *links, int nb_link)
88 network_link_t *link_list = NULL;
91 ROUTE_SIZE(src_id,dst_id) = nb_link;
92 link_list = (ROUTE(src_id,dst_id) = xbt_new0(network_link_t,nb_link));
93 for(i=0; i < nb_link; i++) {
94 xbt_dict_get(network_link_set,links[i], (void *) &(link_list[i]));
101 Semantic: name initial bandwidth initial latency initial state
102 bandwidth trace latency trace state trace
104 Token: TOKEN_WORD TOKEN_WORD TOKEN_WORD TOKEN_WORD TOKEN_WORD TOKEN_WORD TOKEN_WORD
105 Type: string float string float string ON/OFF string
107 static void parse_network_link(void)
109 e_surf_token_t token;
111 xbt_maxmin_float_t bw_initial;
112 tmgr_trace_t bw_trace;
113 xbt_maxmin_float_t lat_initial;
114 tmgr_trace_t lat_trace;
115 e_surf_network_link_state_t state_initial;
116 tmgr_trace_t state_trace;
118 name = xbt_strdup(surf_parse_text);
120 surf_parse_float(&bw_initial);
121 surf_parse_trace(&bw_trace);
122 surf_parse_float(&lat_initial);
123 surf_parse_trace(&lat_trace);
125 token = surf_parse(); /* state_initial */
126 xbt_assert1((token == TOKEN_WORD), "Parse error line %d", line_pos);
127 if (strcmp(surf_parse_text, "ON") == 0)
128 state_initial = SURF_NETWORK_LINK_ON;
129 else if (strcmp(surf_parse_text, "OFF") == 0)
130 state_initial = SURF_NETWORK_LINK_OFF;
132 CRITICAL2("Invalid cpu state (line %d): %s neq ON or OFF\n", line_pos,
137 surf_parse_trace(&state_trace);
139 network_link_new(name, bw_initial, bw_trace,
140 lat_initial, lat_trace,
141 state_initial, state_trace);
145 Semantic: source destination network
148 Token: TOKEN_WORD TOKEN_WORD TOKEN_LP TOKEN_WORD* TOKEN_RP
149 Type: string string string
151 static void parse_route(int fake)
156 char **link_name = NULL;
157 e_surf_token_t token;
159 src_id = network_card_new(surf_parse_text);
161 token = surf_parse();
162 xbt_assert1((token == TOKEN_WORD), "Parse error line %d", line_pos);
163 dst_id = network_card_new(surf_parse_text);
165 token = surf_parse();
166 xbt_assert1((token == TOKEN_LP), "Parse error line %d", line_pos);
168 while((token = surf_parse())==TOKEN_WORD) {
171 link_name=xbt_realloc(link_name, (nb_link) * sizeof(char*));
172 link_name[(nb_link)-1]=xbt_strdup(surf_parse_text);
175 xbt_assert1((token == TOKEN_RP), "Parse error line %d", line_pos);
177 if(!fake) route_new(src_id,dst_id,link_name, nb_link);
180 static void parse_file(const char *file)
182 e_surf_token_t token;
184 /* Figuring out the network links in the system */
185 find_section(file, "NETWORK");
187 token = surf_parse();
189 if (token == TOKEN_END_SECTION)
191 if (token == TOKEN_NEWLINE)
194 if (token == TOKEN_WORD)
195 parse_network_link();
197 CRITICAL1("Parse error line %d\n", line_pos);
201 close_section("NETWORK");
203 /* Figuring out the network cards used */
204 find_section(file, "ROUTE");
206 token = surf_parse();
208 if (token == TOKEN_END_SECTION)
210 if (token == TOKEN_NEWLINE)
213 if (token == TOKEN_WORD)
216 CRITICAL1("Parse error line %d\n", line_pos);
220 close_section("ROUTE");
222 create_routing_table();
224 /* Building the routes */
225 find_section(file, "ROUTE");
227 token = surf_parse();
229 if (token == TOKEN_END_SECTION)
231 if (token == TOKEN_NEWLINE)
234 if (token == TOKEN_WORD)
237 CRITICAL1("Parse error line %d\n", line_pos);
241 close_section("ROUTE");
244 static void *name_service(const char *name)
246 network_card_t card = NULL;
248 xbt_dict_get(network_card_set, name, (void *) &card);
253 static const char *get_resource_name(void *resource_id)
255 return ((network_card_t) resource_id)->name;
258 static int resource_used(void *resource_id)
260 return lmm_constraint_used(maxmin_system,
261 ((network_link_t) resource_id)->constraint);
264 static void action_free(surf_action_t action)
266 surf_action_network_t Action = (surf_action_network_t) action;
268 xbt_swag_remove(action, action->state_set);
269 lmm_variable_free(maxmin_system, Action->variable);
275 static void action_cancel(surf_action_t action)
280 static void action_recycle(surf_action_t action)
285 static void action_change_state(surf_action_t action,
286 e_surf_action_state_t state)
288 surf_action_change_state(action, state);
292 static xbt_heap_float_t share_resources(xbt_heap_float_t now)
294 surf_action_network_t action = NULL;
295 xbt_swag_t running_actions =
296 surf_network_resource->common_public->states.running_action_set;
297 xbt_maxmin_float_t min = -1;
298 xbt_maxmin_float_t value = -1;
299 lmm_solve(maxmin_system);
301 action = xbt_swag_getFirst(running_actions);
304 value = lmm_variable_getvalue(action->variable);
305 min = action->generic_action.remains / value;
307 xbt_swag_foreach(action, running_actions) {
308 value = action->latency + (action->generic_action.remains /
309 lmm_variable_getvalue(action->variable));
318 static void update_actions_state(xbt_heap_float_t now,
319 xbt_heap_float_t delta)
321 xbt_heap_float_t deltap = 0.0;
322 surf_action_network_t action = NULL;
323 surf_action_network_t next_action = NULL;
324 xbt_swag_t running_actions =
325 surf_network_resource->common_public->states.running_action_set;
326 xbt_swag_t failed_actions =
327 surf_network_resource->common_public->states.failed_action_set;
329 xbt_swag_foreach_safe(action, next_action, running_actions) {
331 if(action->latency>0) {
332 if(action->latency>deltap) {
333 action->latency-=deltap;
336 deltap -= action->latency;
337 action->latency = 0.0;
340 action->generic_action.remains -=
341 lmm_variable_getvalue(action->variable) * deltap;
343 /* if(action->generic_action.remains<.00001) action->generic_action.remains=0; */
345 if (action->generic_action.remains <= 0) {
346 action_change_state((surf_action_t) action, SURF_ACTION_DONE);
347 } else { /* Need to check that none of the resource has failed */
348 lmm_constraint_t cnst = NULL;
350 network_link_t nw_link = NULL;
353 lmm_get_cnst_from_var(maxmin_system, action->variable,
355 nw_link = lmm_constraint_id(cnst);
356 if (nw_link->state_current == SURF_NETWORK_LINK_OFF) {
357 action_change_state((surf_action_t) action, SURF_ACTION_FAILED);
364 xbt_swag_foreach_safe(action, next_action, failed_actions) {
365 lmm_variable_disable(maxmin_system, action->variable);
371 static void update_resource_state(void *id,
372 tmgr_trace_event_t event_type,
373 xbt_maxmin_float_t value)
375 network_link_t nw_link = id;
377 /* printf("[" XBT_HEAP_FLOAT_T "] Asking to update network card \"%s\" with value " */
378 /* XBT_MAXMIN_FLOAT_T " for event %p\n", surf_get_clock(), nw_link->name, */
379 /* value, event_type); */
381 if (event_type == nw_link->bw_event) {
382 nw_link->bw_current = value;
383 lmm_update_constraint_bound(maxmin_system, nw_link->constraint,
384 nw_link->bw_current);
385 } else if (event_type == nw_link->lat_event) {
386 nw_link->lat_current = value;
387 } else if (event_type == nw_link->state_event) {
389 nw_link->state_current = SURF_NETWORK_LINK_ON;
391 nw_link->state_current = SURF_NETWORK_LINK_OFF;
393 CRITICAL0("Unknown event ! \n");
400 static surf_action_t communicate(void *src, void *dst,
401 xbt_maxmin_float_t size)
403 surf_action_network_t action = NULL;
404 network_card_t card_src = src;
405 network_card_t card_dst = dst;
406 int route_size = ROUTE_SIZE(card_src->id,card_dst->id);
407 network_link_t *route = ROUTE(card_src->id,card_dst->id);
410 action = xbt_new0(s_surf_action_network_t, 1);
412 action->generic_action.cost = size;
413 action->generic_action.remains = size;
414 action->generic_action.start = -1.0;
415 action->generic_action.finish = -1.0;
416 action->generic_action.callback = NULL;
417 action->generic_action.resource_type =
418 (surf_resource_t) surf_network_resource;
420 action->generic_action.state_set =
421 surf_network_resource->common_public->states.running_action_set;
423 xbt_swag_insert(action, action->generic_action.state_set);
425 action->variable = lmm_variable_new(maxmin_system, action, 1.0, -1.0,
427 for(i=0; i<route_size; i++)
428 lmm_expand(maxmin_system, route[i]->constraint, action->variable,
431 action->latency = 0.0;
432 for(i=0; i<route_size; i++)
433 action->latency += route[i]->lat_current;
435 return (surf_action_t) action;
438 static void finalize(void)
440 xbt_dict_free(&network_card_set);
441 xbt_dict_free(&network_link_set);
442 xbt_swag_free(surf_network_resource->common_public->states.ready_action_set);
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.done_action_set);
448 xbt_free(surf_network_resource->common_public);
449 xbt_free(surf_network_resource->common_private);
450 xbt_free(surf_network_resource->extension_public);
452 xbt_free(surf_network_resource);
453 surf_network_resource = NULL;
456 static void surf_network_resource_init_internal(void)
458 s_surf_action_t action;
460 surf_network_resource = xbt_new0(s_surf_network_resource_t, 1);
462 surf_network_resource->common_private =
463 xbt_new0(s_surf_resource_private_t, 1);
464 surf_network_resource->common_public =
465 xbt_new0(s_surf_resource_public_t, 1);
466 /* surf_network_resource->extension_private = xbt_new0(s_surf_network_resource_extension_private_t,1); */
467 surf_network_resource->extension_public =
468 xbt_new0(s_surf_network_resource_extension_public_t, 1);
470 surf_network_resource->common_public->states.ready_action_set =
471 xbt_swag_new(xbt_swag_offset(action, state_hookup));
472 surf_network_resource->common_public->states.running_action_set =
473 xbt_swag_new(xbt_swag_offset(action, state_hookup));
474 surf_network_resource->common_public->states.failed_action_set =
475 xbt_swag_new(xbt_swag_offset(action, state_hookup));
476 surf_network_resource->common_public->states.done_action_set =
477 xbt_swag_new(xbt_swag_offset(action, state_hookup));
479 surf_network_resource->common_public->name_service = name_service;
480 surf_network_resource->common_public->get_resource_name =
482 surf_network_resource->common_public->action_get_state =
483 surf_action_get_state;
484 surf_network_resource->common_public->action_free = action_free;
485 surf_network_resource->common_public->action_cancel = action_cancel;
486 surf_network_resource->common_public->action_recycle = action_recycle;
487 surf_network_resource->common_public->action_change_state =
490 surf_network_resource->common_private->resource_used = resource_used;
491 surf_network_resource->common_private->share_resources = share_resources;
492 surf_network_resource->common_private->update_actions_state =
493 update_actions_state;
494 surf_network_resource->common_private->update_resource_state =
495 update_resource_state;
496 surf_network_resource->common_private->finalize = finalize;
498 surf_network_resource->extension_public->communicate = communicate;
500 network_link_set = xbt_dict_new();
501 network_card_set = xbt_dict_new();
503 xbt_assert0(maxmin_system, "surf_init has to be called first!");
506 void surf_network_resource_init(const char *filename)
508 surf_network_resource_init_internal();
509 parse_file(filename);
510 xbt_dynar_push(resource_list, &surf_network_resource);