1 /* Copyright (c) 2004, 2005, 2006, 2007, 2008, 2009, 2010. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
7 #include "network_private.h"
11 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_network, surf,
12 "Logging specific to the SURF network module");
14 surf_model_t surf_network_model = NULL;
15 static lmm_system_t network_maxmin_system = NULL;
16 static void (*network_solve) (lmm_system_t) = NULL;
18 double sg_sender_gap = 0.0;
19 double sg_latency_factor = 1.0; /* default value; can be set by model or from command line */
20 double sg_bandwidth_factor = 1.0; /* default value; can be set by model or from command line */
21 double sg_weight_S_parameter = 0.0; /* default value; can be set by model or from command line */
23 double sg_tcp_gamma = 0.0;
24 int sg_network_fullduplex = 0;
26 xbt_dict_t gap_lookup = NULL;
28 static double net_get_link_bandwidth(const void *link);
30 static void gap_append(double size, const link_CM02_t link, surf_action_network_CM02_t action) {
31 const char* src = link->lmm_resource.generic_resource.name;
33 surf_action_network_CM02_t last_action;
36 if(sg_sender_gap > 0.0) {
38 gap_lookup = xbt_dict_new();
40 fifo = (xbt_fifo_t)xbt_dict_get_or_null(gap_lookup, src);
41 action->sender.gap = 0.0;
42 if(fifo && xbt_fifo_size(fifo) > 0) {
43 /* Compute gap from last send */
44 last_action = (surf_action_network_CM02_t)xbt_fifo_get_item_content(xbt_fifo_get_last_item(fifo));
45 bw = net_get_link_bandwidth(link);
46 action->sender.gap = last_action->sender.gap + max(sg_sender_gap, last_action->sender.size / bw);
47 action->latency += action->sender.gap;
49 /* Append action as last send */
50 action->sender.link_name = link->lmm_resource.generic_resource.name;
51 fifo = (xbt_fifo_t)xbt_dict_get_or_null(gap_lookup, action->sender.link_name);
53 fifo = xbt_fifo_new();
54 xbt_dict_set(gap_lookup, action->sender.link_name, fifo, NULL);
56 action->sender.fifo_item = xbt_fifo_push(fifo, action);
57 action->sender.size = size;
61 static void gap_unknown(surf_action_network_CM02_t action) {
62 action->sender.gap = 0.0;
63 action->sender.link_name = NULL;
64 action->sender.fifo_item = NULL;
65 action->sender.size = 0.0;
68 static void gap_remove(surf_action_network_CM02_t action) {
72 if(sg_sender_gap > 0.0 && action->sender.link_name && action->sender.fifo_item) {
73 fifo = (xbt_fifo_t)xbt_dict_get_or_null(gap_lookup, action->sender.link_name);
74 xbt_fifo_remove_item(fifo, action->sender.fifo_item);
75 size = xbt_fifo_size(fifo);
78 xbt_dict_remove(gap_lookup, action->sender.link_name);
79 size = xbt_dict_size(gap_lookup);
81 xbt_dict_free(&gap_lookup);
87 /******************************************************************************/
88 /* Factors callbacks */
89 /******************************************************************************/
90 static double constant_latency_factor(double size)
92 return sg_latency_factor;
95 static double constant_bandwidth_factor(double size)
97 return sg_bandwidth_factor;
100 static double constant_bandwidth_constraint(double rate, double bound,
107 *------------------ <copy/paste C code snippet in surf/network.c> ----------------------
109 * produced by: ./calibrate_piecewise.py griffon_skampi_pt2pt.ski.dat 2 2.4e-5 1.25e8 1536 65536
111 *---------------------------------------------------------------------------------------
113 static double smpi_bandwidth_factor(double size)
115 /* case 0.0 KiB <= size <= 1.5 KiB */
116 if (1 <= size && size <= 1536)
117 return(0.193137361131);
118 /* case 2.0 KiB <= size <= 64.0 KiB */
119 if (2048 <= size && size <= 65536)
120 return(0.584680317461);
121 /* case 65.0 KiB <= size */
123 return(0.933246215769);
125 /* ..:: inter-segment corrections ::.. */
127 /* case 1.5 KiB < size < 2.0 KiB */
128 if (1536 < size && size < 2048)
129 return(0.765607476636);
130 /* case 64.0 KiB < size < 65.0 KiB */
131 if (65536 < size && size < 66560)
132 return(1.24121212121);
135 static double smpi_latency_factor(double size)
137 /* case 0.0 KiB <= size <= 1.5 KiB */
138 if (1 <= size && size <= 1536)
139 return(1.15019564848);
140 /* case 2.0 KiB <= size <= 64.0 KiB */
141 if (2048 <= size && size <= 65536)
142 return(1.80598448863);
143 /* case 65.0 KiB <= size <= 8192.0 KiB */
145 return(14.6187359323);
147 /* ..:: inter-segment corrections ::.. */
149 /* case 1.5 KiB < size < 2.0 KiB */
150 if (1536 < size && size < 2048)
152 /* case 64.0 KiB < size < 65.0 KiB */
153 if (65536 < size && size < 66560)
158 *------------------ </copy/paste C code snippet in surf/network.c> ---------------------
162 static double smpi_bandwidth_constraint(double rate, double bound,
165 return rate < 0 ? bound : min(bound, rate * smpi_bandwidth_factor(size));
169 static double (*latency_factor_callback) (double) =
170 &constant_latency_factor;
171 static double (*bandwidth_factor_callback) (double) =
172 &constant_bandwidth_factor;
173 static double (*bandwidth_constraint_callback) (double, double, double) =
174 &constant_bandwidth_constraint;
177 static link_CM02_t net_link_new(char *name,
179 tmgr_trace_t bw_trace,
181 tmgr_trace_t lat_trace,
182 e_surf_resource_state_t
184 tmgr_trace_t state_trace,
185 e_surf_link_sharing_policy_t
186 policy, xbt_dict_t properties)
188 link_CM02_t nw_link = (link_CM02_t)
189 surf_resource_lmm_new(sizeof(s_link_CM02_t),
190 surf_network_model, name, properties,
191 network_maxmin_system,
192 sg_bandwidth_factor * bw_initial,
194 state_initial, state_trace,
195 bw_initial, bw_trace);
197 xbt_assert(!xbt_lib_get_or_null(link_lib, name, SURF_LINK_LEVEL),
198 "Link '%s' declared several times in the platform file.",
201 nw_link->lat_current = lat_initial;
204 tmgr_history_add_trace(history, lat_trace, 0.0, 0, nw_link);
206 if (policy == SURF_LINK_FATPIPE)
207 lmm_constraint_shared(nw_link->lmm_resource.constraint);
209 xbt_lib_set(link_lib, name, SURF_LINK_LEVEL, nw_link);
214 static void net_parse_link_init(void)
218 tmgr_trace_t bw_trace;
220 tmgr_trace_t lat_trace;
221 e_surf_resource_state_t state_initial_link = SURF_RESOURCE_ON;
222 e_surf_link_sharing_policy_t policy_initial_link = SURF_LINK_SHARED;
223 tmgr_trace_t state_trace;
224 XBT_DEBUG("link_CM02");
225 name_link = xbt_strdup(A_surfxml_link_id);
226 surf_parse_get_double(&bw_initial, A_surfxml_link_bandwidth);
227 bw_trace = tmgr_trace_new(A_surfxml_link_bandwidth_file);
228 surf_parse_get_double(&lat_initial, A_surfxml_link_latency);
229 lat_trace = tmgr_trace_new(A_surfxml_link_latency_file);
231 xbt_assert((A_surfxml_link_state == A_surfxml_link_state_ON)
232 || (A_surfxml_link_state ==
233 A_surfxml_link_state_OFF), "Invalid state");
234 if (A_surfxml_link_state == A_surfxml_link_state_ON)
235 state_initial_link = SURF_RESOURCE_ON;
236 else if (A_surfxml_link_state == A_surfxml_link_state_OFF)
237 state_initial_link = SURF_RESOURCE_OFF;
239 if (A_surfxml_link_sharing_policy == A_surfxml_link_sharing_policy_SHARED)
240 policy_initial_link = SURF_LINK_SHARED;
243 if (A_surfxml_link_sharing_policy == A_surfxml_link_sharing_policy_FATPIPE)
244 policy_initial_link = SURF_LINK_FATPIPE;
245 else if (A_surfxml_link_sharing_policy == A_surfxml_link_sharing_policy_FULLDUPLEX)
246 policy_initial_link = SURF_LINK_FULLDUPLEX;
249 state_trace = tmgr_trace_new(A_surfxml_link_state_file);
251 if(policy_initial_link == SURF_LINK_FULLDUPLEX)
253 net_link_new(bprintf("%s_UP",name_link), bw_initial, bw_trace,
254 lat_initial, lat_trace, state_initial_link, state_trace,
255 policy_initial_link, xbt_dict_new());
256 net_link_new(bprintf("%s_DOWN",name_link), bw_initial, bw_trace,
257 lat_initial, lat_trace, state_initial_link, state_trace,
258 policy_initial_link, xbt_dict_new());
262 net_link_new(name_link, bw_initial, bw_trace,
263 lat_initial, lat_trace, state_initial_link, state_trace,
264 policy_initial_link, xbt_dict_new());
269 static void net_create_resource(char *name,
271 tmgr_trace_t bw_trace,
273 tmgr_trace_t lat_trace,
274 e_surf_resource_state_t
276 tmgr_trace_t state_trace,
277 e_surf_link_sharing_policy_t policy,
278 xbt_dict_t properties)
280 net_link_new(name, bw_initial, bw_trace,
281 lat_initial, lat_trace, state_initial, state_trace,
282 policy, xbt_dict_new());
285 static void net_add_traces(void)
287 xbt_dict_cursor_t cursor = NULL;
288 char *trace_name, *elm;
290 static int called = 0;
295 /* connect all traces relative to network */
296 xbt_dict_foreach(trace_connect_list_link_avail, cursor, trace_name, elm) {
297 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
299 xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL);
301 xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
304 "Cannot connect trace %s to link %s: trace undefined",
307 link->lmm_resource.state_event =
308 tmgr_history_add_trace(history, trace, 0.0, 0, link);
311 xbt_dict_foreach(trace_connect_list_bandwidth, cursor, trace_name, elm) {
312 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
314 xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL);
316 xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
319 "Cannot connect trace %s to link %s: trace undefined",
322 link->lmm_resource.power.event =
323 tmgr_history_add_trace(history, trace, 0.0, 0, link);
326 xbt_dict_foreach(trace_connect_list_latency, cursor, trace_name, elm) {
327 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
329 xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL);
331 xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
334 "Cannot connect trace %s to link %s: trace undefined",
337 link->lat_event = tmgr_history_add_trace(history, trace, 0.0, 0, link);
341 static void net_define_callbacks(const char *file)
343 /* Figuring out the network links */
344 surfxml_add_callback(STag_surfxml_link_cb_list, &net_parse_link_init);
345 surfxml_add_callback(ETag_surfxml_platform_cb_list, &net_add_traces);
348 static int net_resource_used(void *resource_id)
350 return lmm_constraint_used(network_maxmin_system,
351 ((surf_resource_lmm_t)
352 resource_id)->constraint);
355 static int net_action_unref(surf_action_t action)
358 if (!action->refcount) {
359 xbt_swag_remove(action, action->state_set);
360 if (((surf_action_network_CM02_t) action)->variable)
361 lmm_variable_free(network_maxmin_system,
362 ((surf_action_network_CM02_t) action)->variable);
364 xbt_free(((surf_action_network_CM02_t) action)->src_name);
365 xbt_free(((surf_action_network_CM02_t) action)->dst_name);
366 if (action->category)
367 xbt_free(action->category);
369 surf_action_free(&action);
375 static void net_action_cancel(surf_action_t action)
377 surf_network_model->action_state_set(action, SURF_ACTION_FAILED);
380 void net_action_recycle(surf_action_t action)
385 #ifdef HAVE_LATENCY_BOUND_TRACKING
386 int net_get_link_latency_limited(surf_action_t action)
388 return action->latency_limited;
392 double net_action_get_remains(surf_action_t action)
394 return action->remains;
397 static double net_share_resources(double now)
399 s_surf_action_network_CM02_t s_action;
400 surf_action_network_CM02_t action = NULL;
401 xbt_swag_t running_actions =
402 surf_network_model->states.running_action_set;
405 min = generic_maxmin_share_resources(running_actions,
406 xbt_swag_offset(s_action,
408 network_maxmin_system,
411 #define VARIABLE(action) (*((lmm_variable_t*)(((char *) (action)) + xbt_swag_offset(s_action, variable) )))
413 xbt_swag_foreach(action, running_actions) {
414 #ifdef HAVE_LATENCY_BOUND_TRACKING
415 if (lmm_is_variable_limited_by_latency(action->variable)) {
416 (action->generic_action).latency_limited = 1;
418 (action->generic_action).latency_limited = 0;
421 if (action->latency > 0) {
423 min = action->latency;
424 else if (action->latency < min)
425 min = action->latency;
429 XBT_DEBUG("Min of share resources %f", min);
434 static void net_update_actions_state(double now, double delta)
437 surf_action_network_CM02_t action = NULL;
438 surf_action_network_CM02_t next_action = NULL;
439 xbt_swag_t running_actions =
440 surf_network_model->states.running_action_set;
442 xbt_swag_t failed_actions =
443 surf_network_model->states.failed_action_set;
446 xbt_swag_foreach_safe(action, next_action, running_actions) {
448 if (action->latency > 0) {
449 if (action->latency > deltap) {
450 double_update(&(action->latency), deltap);
453 double_update(&(deltap), action->latency);
454 action->latency = 0.0;
456 if ((action->latency == 0.0) && !(action->suspended))
457 lmm_update_variable_weight(network_maxmin_system, action->variable,
461 if (TRACE_is_enabled()) {
462 xbt_dynar_t route = global_routing->get_route(action->src_name,
466 xbt_dynar_foreach(route, i, link) {
467 TRACE_surf_link_set_utilization(link->lmm_resource.generic_resource.name,
468 action->generic_action.data,
469 (surf_action_t) action,
470 lmm_variable_getvalue
471 (action->variable), now - delta,
476 if(!lmm_get_number_of_cnst_from_var(network_maxmin_system, action->variable)) {
477 /* There is actually no link used, hence an infinite bandwidth.
478 * This happens often when using models like vivaldi.
479 * In such case, just make sure that the action completes immediately.
481 double_update(&(action->generic_action.remains),
482 action->generic_action.remains);
484 double_update(&(action->generic_action.remains),
485 lmm_variable_getvalue(action->variable) * deltap);
486 if (action->generic_action.max_duration != NO_MAX_DURATION)
487 double_update(&(action->generic_action.max_duration), delta);
489 if ((action->generic_action.remains <= 0) &&
490 (lmm_get_variable_weight(action->variable) > 0)) {
491 action->generic_action.finish = surf_get_clock();
492 surf_network_model->action_state_set((surf_action_t) action,
495 } else if ((action->generic_action.max_duration != NO_MAX_DURATION)
496 && (action->generic_action.max_duration <= 0)) {
497 action->generic_action.finish = surf_get_clock();
498 surf_network_model->action_state_set((surf_action_t) action,
507 static void net_update_resource_state(void *id,
508 tmgr_trace_event_t event_type,
509 double value, double date)
511 link_CM02_t nw_link = id;
512 /* printf("[" "%lg" "] Asking to update network card \"%s\" with value " */
513 /* "%lg" " for event %p\n", surf_get_clock(), nw_link->name, */
514 /* value, event_type); */
516 if (event_type == nw_link->lmm_resource.power.event) {
518 sg_weight_S_parameter / value - sg_weight_S_parameter /
519 (nw_link->lmm_resource.power.peak *
520 nw_link->lmm_resource.power.scale);
521 lmm_variable_t var = NULL;
522 lmm_element_t elem = NULL;
523 surf_action_network_CM02_t action = NULL;
525 nw_link->lmm_resource.power.peak = value;
526 lmm_update_constraint_bound(network_maxmin_system,
527 nw_link->lmm_resource.constraint,
528 sg_bandwidth_factor *
529 (nw_link->lmm_resource.power.peak *
530 nw_link->lmm_resource.power.scale));
532 TRACE_surf_link_set_bandwidth(date, nw_link->lmm_resource.generic_resource.name,
533 sg_bandwidth_factor *
534 (nw_link->lmm_resource.power.peak *
535 nw_link->lmm_resource.power.scale));
537 if (sg_weight_S_parameter > 0) {
538 while ((var = lmm_get_var_from_cnst
539 (network_maxmin_system, nw_link->lmm_resource.constraint,
541 action = lmm_variable_id(var);
542 action->weight += delta;
543 if (!(action->suspended))
544 lmm_update_variable_weight(network_maxmin_system,
545 action->variable, action->weight);
548 if (tmgr_trace_event_free(event_type))
549 nw_link->lmm_resource.power.event = NULL;
550 } else if (event_type == nw_link->lat_event) {
551 double delta = value - nw_link->lat_current;
552 lmm_variable_t var = NULL;
553 lmm_element_t elem = NULL;
554 surf_action_network_CM02_t action = NULL;
556 nw_link->lat_current = value;
557 while ((var = lmm_get_var_from_cnst
558 (network_maxmin_system, nw_link->lmm_resource.constraint,
560 action = lmm_variable_id(var);
561 action->lat_current += delta;
562 action->weight += delta;
563 if (action->rate < 0)
564 lmm_update_variable_bound(network_maxmin_system, action->variable,
565 sg_tcp_gamma / (2.0 *
566 action->lat_current));
568 lmm_update_variable_bound(network_maxmin_system, action->variable,
570 sg_tcp_gamma / (2.0 *
571 action->lat_current)));
573 if (action->rate < sg_tcp_gamma / (2.0 * action->lat_current)) {
574 XBT_INFO("Flow is limited BYBANDWIDTH");
576 XBT_INFO("Flow is limited BYLATENCY, latency of flow is %f",
577 action->lat_current);
580 if (!(action->suspended))
581 lmm_update_variable_weight(network_maxmin_system, action->variable,
585 if (tmgr_trace_event_free(event_type))
586 nw_link->lat_event = NULL;
587 } else if (event_type == nw_link->lmm_resource.state_event) {
589 nw_link->lmm_resource.state_current = SURF_RESOURCE_ON;
591 lmm_constraint_t cnst = nw_link->lmm_resource.constraint;
592 lmm_variable_t var = NULL;
593 lmm_element_t elem = NULL;
595 nw_link->lmm_resource.state_current = SURF_RESOURCE_OFF;
596 while ((var = lmm_get_var_from_cnst
597 (network_maxmin_system, cnst, &elem))) {
598 surf_action_t action = lmm_variable_id(var);
600 if (surf_action_state_get(action) == SURF_ACTION_RUNNING ||
601 surf_action_state_get(action) == SURF_ACTION_READY) {
602 action->finish = date;
603 surf_network_model->action_state_set(action, SURF_ACTION_FAILED);
607 if (tmgr_trace_event_free(event_type))
608 nw_link->lmm_resource.state_event = NULL;
610 XBT_CRITICAL("Unknown event ! \n");
618 static surf_action_t net_communicate(const char *src_name,
619 const char *dst_name, double size,
625 surf_action_network_CM02_t action = NULL;
626 double bandwidth_bound;
628 /* LARGE PLATFORMS HACK:
629 Add a link_CM02_t *link and a int link_nb to network_card_CM02_t. It will represent local links for this node
630 Use the cluster_id for ->id */
632 xbt_dynar_t back_route = NULL;
633 int constraints_per_variable = 0;
635 // I will need this route for some time so require for no cleanup
636 global_routing->get_route_latency(src_name, dst_name, &route, &latency, 0);
638 if (sg_network_fullduplex == 1) {
639 back_route = global_routing->get_route(dst_name, src_name);
642 /* LARGE PLATFORMS HACK:
643 total_route_size = route_size + src->link_nb + dst->nb */
645 XBT_IN("(%s,%s,%g,%g)", src_name, dst_name, size, rate);
646 /* LARGE PLATFORMS HACK:
647 assert on total_route_size */
648 xbt_assert(xbt_dynar_length(route) || latency,
649 "You're trying to send data from %s to %s but there is no connection at all between these two hosts.",
652 xbt_dynar_foreach(route, i, link) {
653 if (link->lmm_resource.state_current == SURF_RESOURCE_OFF) {
659 surf_action_new(sizeof(s_surf_action_network_CM02_t), size,
660 surf_network_model, failed);
661 #ifdef HAVE_LATENCY_BOUND_TRACKING
662 (action->generic_action).latency_limited = 0;
664 action->weight = action->latency = latency;
666 xbt_swag_insert(action, action->generic_action.state_set);
669 bandwidth_bound = -1.0;
671 xbt_dynar_foreach(route, i, link) {
673 sg_weight_S_parameter /
674 (link->lmm_resource.power.peak * link->lmm_resource.power.scale);
675 if (bandwidth_bound < 0.0)
677 (*bandwidth_factor_callback) (size) *
678 (link->lmm_resource.power.peak * link->lmm_resource.power.scale);
682 (*bandwidth_factor_callback) (size) *
683 (link->lmm_resource.power.peak *
684 link->lmm_resource.power.scale));
686 /* LARGE PLATFORMS HACK:
687 Add src->link and dst->link latencies */
688 action->lat_current = action->latency;
689 action->latency *= (*latency_factor_callback) (size);
691 (*bandwidth_constraint_callback) (action->rate, bandwidth_bound,
694 if(xbt_dynar_length(route) > 0) {
695 link = *(link_CM02_t*)xbt_dynar_get_ptr(route, 0);
696 gap_append(size, link, action);
697 XBT_DEBUG("Comm %p: %s -> %s gap=%f (lat=%f)",
698 action, src_name, dst_name, action->sender.gap, action->latency);
704 /* LARGE PLATFORMS HACK:
705 lmm_variable_new(..., total_route_size) */
706 if (back_route != NULL) {
707 constraints_per_variable =
708 xbt_dynar_length(route) + xbt_dynar_length(back_route);
710 constraints_per_variable = xbt_dynar_length(route);
713 if (action->latency > 0)
715 lmm_variable_new(network_maxmin_system, action, 0.0, -1.0,
716 constraints_per_variable);
719 lmm_variable_new(network_maxmin_system, action, 1.0, -1.0,
720 constraints_per_variable);
722 if (action->rate < 0) {
723 if (action->lat_current > 0)
724 lmm_update_variable_bound(network_maxmin_system, action->variable,
725 sg_tcp_gamma / (2.0 *
726 action->lat_current));
728 lmm_update_variable_bound(network_maxmin_system, action->variable,
731 if (action->lat_current > 0)
732 lmm_update_variable_bound(network_maxmin_system, action->variable,
734 sg_tcp_gamma / (2.0 *
735 action->lat_current)));
737 lmm_update_variable_bound(network_maxmin_system, action->variable,
741 xbt_dynar_foreach(route, i, link) {
742 lmm_expand(network_maxmin_system, link->lmm_resource.constraint,
743 action->variable, 1.0);
746 if (sg_network_fullduplex == 1) {
747 XBT_DEBUG("Fullduplex active adding backward flow using 5%c", '%');
748 xbt_dynar_foreach(back_route, i, link) {
749 lmm_expand(network_maxmin_system, link->lmm_resource.constraint,
750 action->variable, .05);
753 /* LARGE PLATFORMS HACK:
754 expand also with src->link and dst->link */
756 if (TRACE_is_enabled()) {
757 action->src_name = xbt_strdup(src_name);
758 action->dst_name = xbt_strdup(dst_name);
760 action->src_name = action->dst_name = NULL;
764 xbt_dynar_free(&route);
767 return (surf_action_t) action;
770 static xbt_dynar_t net_get_route(const char *src, const char *dst)
772 return global_routing->get_route(src, dst);
775 static double net_get_link_bandwidth(const void *link)
777 surf_resource_lmm_t lmm = (surf_resource_lmm_t) link;
778 return lmm->power.peak * lmm->power.scale;
781 static double net_get_link_latency(const void *link)
783 return ((link_CM02_t) link)->lat_current;
786 static int net_link_shared(const void *link)
789 lmm_constraint_is_shared(((surf_resource_lmm_t) link)->constraint);
792 static void net_action_suspend(surf_action_t action)
794 ((surf_action_network_CM02_t) action)->suspended = 1;
795 lmm_update_variable_weight(network_maxmin_system,
796 ((surf_action_network_CM02_t)
797 action)->variable, 0.0);
800 static void net_action_resume(surf_action_t action)
802 if (((surf_action_network_CM02_t) action)->suspended) {
803 lmm_update_variable_weight(network_maxmin_system,
804 ((surf_action_network_CM02_t)
806 ((surf_action_network_CM02_t)
808 ((surf_action_network_CM02_t) action)->suspended = 0;
812 static int net_action_is_suspended(surf_action_t action)
814 return ((surf_action_network_CM02_t) action)->suspended;
817 void net_action_set_max_duration(surf_action_t action, double duration)
819 action->max_duration = duration;
823 static void net_action_set_category(surf_action_t action, const char *category)
825 action->category = xbt_strdup (category);
829 static void net_finalize(void)
831 surf_model_exit(surf_network_model);
832 surf_network_model = NULL;
834 global_routing->finalize();
836 lmm_system_free(network_maxmin_system);
837 network_maxmin_system = NULL;
840 static void surf_network_model_init_internal(void)
842 surf_network_model = surf_model_init();
844 surf_network_model->name = "network";
845 surf_network_model->action_unref = net_action_unref;
846 surf_network_model->action_cancel = net_action_cancel;
847 surf_network_model->action_recycle = net_action_recycle;
848 surf_network_model->get_remains = net_action_get_remains;
849 #ifdef HAVE_LATENCY_BOUND_TRACKING
850 surf_network_model->get_latency_limited = net_get_link_latency_limited;
853 surf_network_model->model_private->resource_used = net_resource_used;
854 surf_network_model->model_private->share_resources = net_share_resources;
855 surf_network_model->model_private->update_actions_state =
856 net_update_actions_state;
857 surf_network_model->model_private->update_resource_state =
858 net_update_resource_state;
859 surf_network_model->model_private->finalize = net_finalize;
861 surf_network_model->suspend = net_action_suspend;
862 surf_network_model->resume = net_action_resume;
863 surf_network_model->is_suspended = net_action_is_suspended;
864 surf_network_model->set_max_duration = net_action_set_max_duration;
866 surf_network_model->set_category = net_action_set_category;
869 surf_network_model->extension.network.communicate = net_communicate;
870 surf_network_model->extension.network.get_route = net_get_route;
871 surf_network_model->extension.network.get_link_bandwidth =
872 net_get_link_bandwidth;
873 surf_network_model->extension.network.get_link_latency =
874 net_get_link_latency;
875 surf_network_model->extension.network.link_shared = net_link_shared;
876 surf_network_model->extension.network.add_traces = net_add_traces;
877 surf_network_model->extension.network.create_resource =
880 if (!network_maxmin_system)
881 network_maxmin_system = lmm_system_new();
883 routing_model_create(sizeof(link_CM02_t),
884 net_link_new(xbt_strdup("__loopback__"),
885 498000000, NULL, 0.000015, NULL,
886 SURF_RESOURCE_ON, NULL,
887 SURF_LINK_FATPIPE, NULL),
888 net_get_link_latency);
893 /************************************************************************/
894 /* New model based on LV08 and experimental results of MPI ping-pongs */
895 /************************************************************************/
896 void surf_network_model_init_SMPI(const char *filename)
899 if (surf_network_model)
901 surf_network_model_init_internal();
902 latency_factor_callback = &smpi_latency_factor;
903 bandwidth_factor_callback = &smpi_bandwidth_factor;
904 bandwidth_constraint_callback = &smpi_bandwidth_constraint;
905 net_define_callbacks(filename);
906 xbt_dynar_push(model_list, &surf_network_model);
907 network_solve = lmm_solve;
909 xbt_cfg_setdefault_double(_surf_cfg_set, "network/sender_gap", 10e-6);
910 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 8775);
912 update_model_description(surf_network_model_description,
913 "SMPI", surf_network_model);
916 /************************************************************************/
917 /* New model based on optimizations discussed during this thesis */
918 /************************************************************************/
919 void surf_network_model_init_LegrandVelho(const char *filename)
922 if (surf_network_model)
924 surf_network_model_init_internal();
925 net_define_callbacks(filename);
926 xbt_dynar_push(model_list, &surf_network_model);
927 network_solve = lmm_solve;
929 xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor", 10.4);
930 xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
932 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 8775);
934 update_model_description(surf_network_model_description,
935 "LV08", surf_network_model);
938 /***************************************************************************/
939 /* The nice TCP sharing model designed by Loris Marchal and Henri Casanova */
940 /***************************************************************************/
941 /* @TechReport{ rr-lip2002-40, */
942 /* author = {Henri Casanova and Loris Marchal}, */
943 /* institution = {LIP}, */
944 /* title = {A Network Model for Simulation of Grid Application}, */
945 /* number = {2002-40}, */
949 void surf_network_model_init_CM02(const char *filename)
952 if (surf_network_model)
954 surf_network_model_init_internal();
955 net_define_callbacks(filename);
956 xbt_dynar_push(model_list, &surf_network_model);
957 network_solve = lmm_solve;
959 update_model_description(surf_network_model_description,
960 "CM02", surf_network_model);
963 void surf_network_model_init_Reno(const char *filename)
965 if (surf_network_model)
967 surf_network_model_init_internal();
968 net_define_callbacks(filename);
970 xbt_dynar_push(model_list, &surf_network_model);
971 lmm_set_default_protocol_function(func_reno_f, func_reno_fp,
973 network_solve = lagrange_solve;
975 xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor", 10.4);
976 xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
978 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 8775);
980 update_model_description(surf_network_model_description,
981 "Reno", surf_network_model);
985 void surf_network_model_init_Reno2(const char *filename)
987 if (surf_network_model)
989 surf_network_model_init_internal();
990 net_define_callbacks(filename);
992 xbt_dynar_push(model_list, &surf_network_model);
993 lmm_set_default_protocol_function(func_reno2_f, func_reno2_fp,
995 network_solve = lagrange_solve;
997 xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor", 10.4);
998 xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
1000 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S_parameter",
1003 update_model_description(surf_network_model_description,
1004 "Reno2", surf_network_model);
1007 void surf_network_model_init_Vegas(const char *filename)
1009 if (surf_network_model)
1011 surf_network_model_init_internal();
1012 net_define_callbacks(filename);
1014 xbt_dynar_push(model_list, &surf_network_model);
1015 lmm_set_default_protocol_function(func_vegas_f, func_vegas_fp,
1017 network_solve = lagrange_solve;
1019 xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor", 10.4);
1020 xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
1022 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 8775);
1024 update_model_description(surf_network_model_description,
1025 "Vegas", surf_network_model);