3 * Network with improved management of tasks, IM (Improved Management).
4 * Uses a heap to store actions so that the share_resources is faster.
5 * This model automatically sets the selective update flag to 1 and is
6 * highly dependent on the maxmin lmm module.
9 /* Copyright (c) 2009, 2010, 2011. The SimGrid Team.
10 * All rights reserved. */
12 /* This program is free software; you can redistribute it and/or modify it
13 * under the terms of the license (GNU LGPL) which comes with this package. */
15 #include "network_private.h"
19 #include "surf_private.h"
21 #include "maxmin_private.h"
22 #include "surf/surfxml_parse_values.h"
23 #include "surf/surf_resource.h"
24 #include "surf/surf_resource_lmm.h"
26 #undef GENERIC_LMM_ACTION
28 #define GENERIC_LMM_ACTION(action) (action)->generic_lmm_action
29 #define GENERIC_ACTION(action) GENERIC_LMM_ACTION(action).generic_action
32 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_network, surf,
33 "Logging specific to the SURF network module");
35 surf_model_t surf_network_model = NULL;
36 static void (*network_solve) (lmm_system_t) = NULL;
38 xbt_dynar_t smpi_bw_factor = NULL;
39 xbt_dynar_t smpi_lat_factor = NULL;
41 typedef struct s_smpi_factor *smpi_factor_t;
42 typedef struct s_smpi_factor {
48 double sg_sender_gap = 0.0;
49 double sg_latency_factor = 1.0; /* default value; can be set by model or from command line */
50 double sg_bandwidth_factor = 1.0; /* default value; can be set by model or from command line */
51 double sg_weight_S_parameter = 0.0; /* default value; can be set by model or from command line */
53 double sg_tcp_gamma = 0.0;
54 int sg_network_crosstraffic = 0;
56 xbt_dict_t gap_lookup = NULL;
58 /******************************************************************************/
59 /* Factors callbacks */
60 /******************************************************************************/
61 static double constant_latency_factor(double size)
63 return sg_latency_factor;
66 static double constant_bandwidth_factor(double size)
68 return sg_bandwidth_factor;
71 static double constant_bandwidth_constraint(double rate, double bound,
77 /**********************/
79 /**********************/
81 static int factor_cmp(const void *pa, const void *pb)
83 return (((s_smpi_factor_t*)pa)->factor > ((s_smpi_factor_t*)pb)->factor);
87 static xbt_dynar_t parse_factor(const char *smpi_coef_string)
90 unsigned int iter = 0;
92 xbt_dynar_t smpi_factor, radical_elements, radical_elements2 = NULL;
94 smpi_factor = xbt_dynar_new(sizeof(s_smpi_factor_t), NULL);
95 radical_elements = xbt_str_split(smpi_coef_string, ";");
96 xbt_dynar_foreach(radical_elements, iter, value) {
98 radical_elements2 = xbt_str_split(value, ":");
99 if (xbt_dynar_length(radical_elements2) != 2)
100 xbt_die("Malformed radical for smpi factor!");
101 fact.factor = atol(xbt_dynar_get_as(radical_elements2, 0, char *));
102 fact.value = atof(xbt_dynar_get_as(radical_elements2, 1, char *));
103 xbt_dynar_push_as(smpi_factor, s_smpi_factor_t, fact);
104 XBT_DEBUG("smpi_factor:\t%ld : %f", fact.factor, fact.value);
105 xbt_dynar_free(&radical_elements2);
107 xbt_dynar_free(&radical_elements);
109 xbt_dynar_sort(smpi_factor, &factor_cmp);
110 xbt_dynar_foreach(smpi_factor, iter, fact) {
111 XBT_DEBUG("ordered smpi_factor:\t%ld : %f", fact.factor, fact.value);
117 static double smpi_bandwidth_factor(double size)
121 parse_factor(surf_cfg_get_string("smpi/bw_factor"));
123 unsigned int iter = 0;
124 s_smpi_factor_t fact;
126 xbt_dynar_foreach(smpi_bw_factor, iter, fact) {
127 if (size <= fact.factor) {
128 XBT_DEBUG("%lf <= %ld return %f", size, fact.factor, current);
133 XBT_DEBUG("%lf > %ld return %f", size, fact.factor, current);
138 static double smpi_latency_factor(double size)
140 if (!smpi_lat_factor)
142 parse_factor(surf_cfg_get_string("smpi/lat_factor"));
144 unsigned int iter = 0;
145 s_smpi_factor_t fact;
147 xbt_dynar_foreach(smpi_lat_factor, iter, fact) {
148 if (size <= fact.factor) {
149 XBT_DEBUG("%lf <= %ld return %f", size, fact.factor, current);
154 XBT_DEBUG("%lf > %ld return %f", size, fact.factor, current);
159 /**--------- <copy/paste C code snippet in surf/network.c> -----------*/
161 static double smpi_bandwidth_constraint(double rate, double bound,
164 return rate < 0 ? bound : min(bound, rate * smpi_bandwidth_factor(size));
167 static double (*latency_factor_callback) (double) =
168 &constant_latency_factor;
169 static double (*bandwidth_factor_callback) (double) =
170 &constant_bandwidth_factor;
171 static double (*bandwidth_constraint_callback) (double, double, double) =
172 &constant_bandwidth_constraint;
174 static void (*gap_append) (double, const link_CM02_t,
175 surf_action_network_CM02_t) = NULL;
177 static void *net_create_resource(const 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 surf_network_model->model_private->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);
210 XBT_DEBUG("Create link '%s'",name);
215 static void net_parse_link_init(sg_platf_link_cbarg_t link)
217 if (link->policy == SURF_LINK_FULLDUPLEX) {
219 link_id = bprintf("%s_UP", link->id);
220 net_create_resource(link_id,
222 link->bandwidth_trace,
226 link->state_trace, link->policy, link->properties);
228 link_id = bprintf("%s_DOWN", link->id);
229 net_create_resource(link_id,
231 link->bandwidth_trace,
235 link->state_trace, link->policy, link->properties);
238 net_create_resource(link->id,
240 link->bandwidth_trace,
244 link->state_trace, link->policy, link->properties);
248 static void net_add_traces(void)
250 xbt_dict_cursor_t cursor = NULL;
251 char *trace_name, *elm;
253 static int called = 0;
258 /* connect all traces relative to network */
259 xbt_dict_foreach(trace_connect_list_link_avail, cursor, trace_name, elm) {
260 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
261 link_CM02_t link = xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL);
263 xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
266 "Cannot connect trace %s to link %s: trace undefined",
269 link->lmm_resource.state_event =
270 tmgr_history_add_trace(history, trace, 0.0, 0, link);
273 xbt_dict_foreach(trace_connect_list_bandwidth, cursor, trace_name, elm) {
274 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
275 link_CM02_t link = xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL);
277 xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
280 "Cannot connect trace %s to link %s: trace undefined",
283 link->lmm_resource.power.event =
284 tmgr_history_add_trace(history, trace, 0.0, 0, link);
287 xbt_dict_foreach(trace_connect_list_latency, cursor, trace_name, elm) {
288 tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
289 link_CM02_t link = xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL);
291 xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
294 "Cannot connect trace %s to link %s: trace undefined",
297 link->lat_event = tmgr_history_add_trace(history, trace, 0.0, 0, link);
301 static void net_define_callbacks(void)
303 /* Figuring out the network links */
304 sg_platf_link_add_cb(net_parse_link_init);
305 sg_platf_postparse_add_cb(net_add_traces);
308 static int net_resource_used(void *resource_id)
310 return lmm_constraint_used(surf_network_model->model_private->maxmin_system, ((surf_resource_lmm_t)
315 void net_action_recycle(surf_action_t action)
320 #ifdef HAVE_LATENCY_BOUND_TRACKING
321 int net_get_link_latency_limited(surf_action_t action)
323 return action->latency_limited;
327 static double net_share_resources_full(double now)
329 s_surf_action_lmm_t s_action;
330 surf_action_network_CM02_t action = NULL;
331 xbt_swag_t running_actions =
332 surf_network_model->states.running_action_set;
335 min = generic_maxmin_share_resources(running_actions,
336 xbt_swag_offset(s_action,
338 surf_network_model->model_private->maxmin_system,
341 #define VARIABLE(action) (*((lmm_variable_t*)(((char *) (action)) + xbt_swag_offset(s_action, variable) )))
343 xbt_swag_foreach(action, running_actions) {
344 #ifdef HAVE_LATENCY_BOUND_TRACKING
345 if (lmm_is_variable_limited_by_latency(GENERIC_LMM_ACTION(action).variable)) {
346 action->latency_limited = 1;
348 action->latency_limited = 0;
351 if (action->latency > 0) {
352 min = (min < 0) ? action->latency : min(min, action->latency);
356 XBT_DEBUG("Min of share resources %f", min);
361 static double net_share_resources_lazy(double now)
363 return generic_share_resources_lazy(now, surf_network_model);
366 static void net_update_actions_state_full(double now, double delta)
368 generic_update_actions_state_full(now, delta, surf_network_model);
371 static void net_update_actions_state_lazy(double now, double delta)
373 generic_update_actions_state_lazy(now, delta, surf_network_model);
376 static void net_update_resource_state(void *id,
377 tmgr_trace_event_t event_type,
378 double value, double date)
380 link_CM02_t nw_link = id;
381 /* printf("[" "%lg" "] Asking to update network card \"%s\" with value " */
382 /* "%lg" " for event %p\n", surf_get_clock(), nw_link->name, */
383 /* value, event_type); */
385 if (event_type == nw_link->lmm_resource.power.event) {
387 sg_weight_S_parameter / value - sg_weight_S_parameter /
388 (nw_link->lmm_resource.power.peak *
389 nw_link->lmm_resource.power.scale);
390 lmm_variable_t var = NULL;
391 lmm_element_t elem = NULL;
392 surf_action_network_CM02_t action = NULL;
394 nw_link->lmm_resource.power.peak = value;
395 lmm_update_constraint_bound(surf_network_model->model_private->maxmin_system,
396 nw_link->lmm_resource.constraint,
397 sg_bandwidth_factor *
398 (nw_link->lmm_resource.power.peak *
399 nw_link->lmm_resource.power.scale));
401 TRACE_surf_link_set_bandwidth(date,
403 *) (((nw_link->lmm_resource).
404 generic_resource).name),
405 sg_bandwidth_factor *
406 (nw_link->lmm_resource.power.peak *
407 nw_link->lmm_resource.power.scale));
409 if (sg_weight_S_parameter > 0) {
410 while ((var = lmm_get_var_from_cnst
411 (surf_network_model->model_private->maxmin_system, nw_link->lmm_resource.constraint,
413 action = lmm_variable_id(var);
414 action->weight += delta;
415 if (!(GENERIC_LMM_ACTION(action).suspended))
416 lmm_update_variable_weight(surf_network_model->model_private->maxmin_system,
417 GENERIC_LMM_ACTION(action).variable, action->weight);
420 if (tmgr_trace_event_free(event_type))
421 nw_link->lmm_resource.power.event = NULL;
422 } else if (event_type == nw_link->lat_event) {
423 double delta = value - nw_link->lat_current;
424 lmm_variable_t var = NULL;
425 lmm_element_t elem = NULL;
426 surf_action_network_CM02_t action = NULL;
428 nw_link->lat_current = value;
429 while ((var = lmm_get_var_from_cnst
430 (surf_network_model->model_private->maxmin_system, nw_link->lmm_resource.constraint,
432 action = lmm_variable_id(var);
433 action->lat_current += delta;
434 action->weight += delta;
435 if (action->rate < 0)
436 lmm_update_variable_bound(surf_network_model->model_private->maxmin_system, GENERIC_LMM_ACTION(action).variable,
437 sg_tcp_gamma / (2.0 *
438 action->lat_current));
440 lmm_update_variable_bound(surf_network_model->model_private->maxmin_system, GENERIC_LMM_ACTION(action).variable,
442 sg_tcp_gamma / (2.0 *
446 if (action->rate < sg_tcp_gamma / (2.0 * action->lat_current)) {
447 XBT_INFO("Flow is limited BYBANDWIDTH");
449 XBT_INFO("Flow is limited BYLATENCY, latency of flow is %f",
450 action->lat_current);
453 if (!(GENERIC_LMM_ACTION(action).suspended))
454 lmm_update_variable_weight(surf_network_model->model_private->maxmin_system, GENERIC_LMM_ACTION(action).variable,
458 if (tmgr_trace_event_free(event_type))
459 nw_link->lat_event = NULL;
460 } else if (event_type == nw_link->lmm_resource.state_event) {
462 nw_link->lmm_resource.state_current = SURF_RESOURCE_ON;
464 lmm_constraint_t cnst = nw_link->lmm_resource.constraint;
465 lmm_variable_t var = NULL;
466 lmm_element_t elem = NULL;
468 nw_link->lmm_resource.state_current = SURF_RESOURCE_OFF;
469 while ((var = lmm_get_var_from_cnst
470 (surf_network_model->model_private->maxmin_system, cnst, &elem))) {
471 surf_action_t action = lmm_variable_id(var);
473 if (surf_action_state_get(action) == SURF_ACTION_RUNNING ||
474 surf_action_state_get(action) == SURF_ACTION_READY) {
475 action->finish = date;
476 surf_network_model->action_state_set(action, SURF_ACTION_FAILED);
480 if (tmgr_trace_event_free(event_type))
481 nw_link->lmm_resource.state_event = NULL;
483 XBT_CRITICAL("Unknown event ! \n");
488 ("There were a resource state event, need to update actions related to the constraint (%p)",
489 nw_link->lmm_resource.constraint);
494 static surf_action_t net_communicate(sg_routing_edge_t src,
495 sg_routing_edge_t dst,
496 double size, double rate)
501 surf_action_network_CM02_t action = NULL;
502 double bandwidth_bound;
503 double latency = 0.0;
504 xbt_dynar_t back_route = NULL;
505 int constraints_per_variable = 0;
507 xbt_dynar_t route = xbt_dynar_new(sizeof(sg_routing_link_t), NULL);
509 XBT_IN("(%s,%s,%g,%g)", src->name, dst->name, size, rate);
511 routing_get_route_and_latency(src, dst, &route, &latency);
512 xbt_assert(!xbt_dynar_is_empty(route) || latency,
513 "You're trying to send data from %s to %s but there is no connection at all between these two hosts.",
514 src->name, dst->name);
516 xbt_dynar_foreach(route, i, link) {
517 if (link->lmm_resource.state_current == SURF_RESOURCE_OFF) {
522 if (sg_network_crosstraffic == 1) {
523 routing_get_route_and_latency(dst, src, &back_route, NULL);
524 xbt_dynar_foreach(back_route, i, link) {
525 if (link->lmm_resource.state_current == SURF_RESOURCE_OFF) {
533 surf_action_new(sizeof(s_surf_action_network_CM02_t), size,
534 surf_network_model, failed);
535 #ifdef HAVE_LATENCY_BOUND_TRACKING
536 action->latency_limited = 0;
538 action->weight = action->latency = latency;
540 xbt_swag_insert(action, ((surf_action_t)action)->state_set);
542 if (surf_network_model->model_private->update_mechanism == UM_LAZY) {
543 GENERIC_LMM_ACTION(action).index_heap = -1;
544 GENERIC_LMM_ACTION(action).last_update = surf_get_clock();
547 bandwidth_bound = -1.0;
548 if (sg_weight_S_parameter > 0) {
549 xbt_dynar_foreach(route, i, link) {
551 sg_weight_S_parameter /
552 (link->lmm_resource.power.peak * link->lmm_resource.power.scale);
555 xbt_dynar_foreach(route, i, link) {
556 double bb = bandwidth_factor_callback(size) *
557 (link->lmm_resource.power.peak * link->lmm_resource.power.scale);
559 (bandwidth_bound < 0.0) ? bb : min(bandwidth_bound, bb);
562 action->lat_current = action->latency;
563 action->latency *= latency_factor_callback(size);
565 bandwidth_constraint_callback(action->rate, bandwidth_bound, size);
567 xbt_assert(!xbt_dynar_is_empty(route),
568 "Using a model with a gap (e.g., SMPI) with a platform without links (e.g. vivaldi)!!!");
570 link = *(link_CM02_t *) xbt_dynar_get_ptr(route, 0);
571 gap_append(size, link, action);
572 XBT_DEBUG("Comm %p: %s -> %s gap=%f (lat=%f)",
573 action, src->name, dst->name, action->sender.gap,
577 constraints_per_variable = xbt_dynar_length(route);
578 if (back_route != NULL)
579 constraints_per_variable += xbt_dynar_length(back_route);
581 if (action->latency > 0) {
582 GENERIC_LMM_ACTION(action).variable =
583 lmm_variable_new(surf_network_model->model_private->maxmin_system, action, 0.0, -1.0,
584 constraints_per_variable);
585 if (surf_network_model->model_private->update_mechanism == UM_LAZY) {
586 // add to the heap the event when the latency is payed
587 XBT_DEBUG("Added action (%p) one latency event at date %f", action,
588 action->latency + GENERIC_LMM_ACTION(action).last_update);
589 surf_action_lmm_heap_insert(surf_network_model->model_private->action_heap,(surf_action_lmm_t)action, action->latency + GENERIC_LMM_ACTION(action).last_update,
590 xbt_dynar_is_empty(route) ? NORMAL : LATENCY);
593 GENERIC_LMM_ACTION(action).variable =
594 lmm_variable_new(surf_network_model->model_private->maxmin_system, action, 1.0, -1.0,
595 constraints_per_variable);
597 if (action->rate < 0) {
598 lmm_update_variable_bound(surf_network_model->model_private->maxmin_system, GENERIC_LMM_ACTION(action).variable,
599 (action->lat_current > 0) ?
600 sg_tcp_gamma / (2.0 *
601 action->lat_current) : -1.0);
603 lmm_update_variable_bound(surf_network_model->model_private->maxmin_system, GENERIC_LMM_ACTION(action).variable,
604 (action->lat_current > 0) ?
606 sg_tcp_gamma / (2.0 *
607 action->lat_current))
611 xbt_dynar_foreach(route, i, link) {
612 lmm_expand(surf_network_model->model_private->maxmin_system, link->lmm_resource.constraint,
613 GENERIC_LMM_ACTION(action).variable, 1.0);
616 if (sg_network_crosstraffic == 1) {
617 XBT_DEBUG("Fullduplex active adding backward flow using 5%%");
618 xbt_dynar_foreach(back_route, i, link) {
619 lmm_expand(surf_network_model->model_private->maxmin_system, link->lmm_resource.constraint,
620 GENERIC_LMM_ACTION(action).variable, .05);
624 xbt_dynar_free(&route);
627 return (surf_action_t) action;
630 static xbt_dynar_t net_get_route(void *src, void *dst)
632 xbt_dynar_t route = NULL;
633 routing_get_route_and_latency(src, dst, &route, NULL);
637 static double net_get_link_bandwidth(const void *link)
639 surf_resource_lmm_t lmm = (surf_resource_lmm_t) link;
640 return lmm->power.peak * lmm->power.scale;
643 static double net_get_link_latency(const void *link)
645 return ((link_CM02_t) link)->lat_current;
648 static int net_link_shared(const void *link)
651 lmm_constraint_is_shared(((surf_resource_lmm_t) link)->constraint);
654 static void net_finalize(void)
656 lmm_system_free(surf_network_model->model_private->maxmin_system);
657 surf_network_model->model_private->maxmin_system = NULL;
659 if (surf_network_model->model_private->update_mechanism == UM_LAZY) {
660 xbt_heap_free(surf_network_model->model_private->action_heap);
661 xbt_swag_free(surf_network_model->model_private->modified_set);
664 surf_model_exit(surf_network_model);
665 surf_network_model = NULL;
668 xbt_dynar_free(&smpi_bw_factor);
670 xbt_dynar_free(&smpi_lat_factor);
673 static void smpi_gap_append(double size, const link_CM02_t link,
674 surf_action_network_CM02_t action)
676 const char *src = link->lmm_resource.generic_resource.name;
678 surf_action_network_CM02_t last_action;
681 if (sg_sender_gap > 0.0) {
683 gap_lookup = xbt_dict_new();
685 fifo = (xbt_fifo_t) xbt_dict_get_or_null(gap_lookup, src);
686 action->sender.gap = 0.0;
687 if (fifo && xbt_fifo_size(fifo) > 0) {
688 /* Compute gap from last send */
690 (surf_action_network_CM02_t)
691 xbt_fifo_get_item_content(xbt_fifo_get_last_item(fifo));
692 bw = net_get_link_bandwidth(link);
694 max(sg_sender_gap,last_action->sender.size / bw);
695 action->latency += action->sender.gap;
697 /* Append action as last send */
698 action->sender.link_name = link->lmm_resource.generic_resource.name;
700 (xbt_fifo_t) xbt_dict_get_or_null(gap_lookup,
701 action->sender.link_name);
703 fifo = xbt_fifo_new();
704 xbt_dict_set(gap_lookup, action->sender.link_name, fifo, NULL);
706 action->sender.fifo_item = xbt_fifo_push(fifo, action);
707 action->sender.size = size;
711 static void smpi_gap_remove(surf_action_lmm_t lmm_action)
715 surf_action_network_CM02_t action = (surf_action_network_CM02_t)(lmm_action);
717 if (sg_sender_gap > 0.0 && action->sender.link_name
718 && action->sender.fifo_item) {
720 (xbt_fifo_t) xbt_dict_get_or_null(gap_lookup,
721 action->sender.link_name);
722 xbt_fifo_remove_item(fifo, action->sender.fifo_item);
723 size = xbt_fifo_size(fifo);
726 xbt_dict_remove(gap_lookup, action->sender.link_name);
727 size = xbt_dict_length(gap_lookup);
729 xbt_dict_free(&gap_lookup);
735 static void set_update_mechanism(void)
737 char *optim = xbt_cfg_get_string(_surf_cfg_set, "network/optim");
739 xbt_cfg_get_int(_surf_cfg_set, "network/maxmin_selective_update");
741 if (!strcmp(optim, "Full")) {
742 surf_network_model->model_private->update_mechanism = UM_FULL;
743 surf_network_model->model_private->selective_update = select;
744 } else if (!strcmp(optim, "Lazy")) {
745 surf_network_model->model_private->update_mechanism = UM_LAZY;
746 surf_network_model->model_private->selective_update = 1;
747 xbt_assert((select == 1)
749 (xbt_cfg_is_default_value
750 (_surf_cfg_set, "network/maxmin_selective_update")),
751 "Disabling selective update while using the lazy update mechanism is dumb!");
753 xbt_die("Unsupported optimization (%s) for this model", optim);
757 static void surf_network_model_init_internal(void)
759 s_surf_action_network_CM02_t comm;
760 surf_network_model = surf_model_init();
762 set_update_mechanism();
764 surf_network_model->name = "network";
765 surf_network_model->action_unref = surf_action_unref;
766 surf_network_model->action_cancel = surf_action_cancel;
767 surf_network_model->action_recycle = net_action_recycle;
769 surf_network_model->get_remains = surf_action_get_remains;
771 #ifdef HAVE_LATENCY_BOUND_TRACKING
772 surf_network_model->get_latency_limited = net_get_link_latency_limited;
775 surf_network_model->set_category = surf_action_set_category;
778 surf_network_model->model_private->resource_used = net_resource_used;
779 if (surf_network_model->model_private->update_mechanism == UM_LAZY) {
780 surf_network_model->model_private->share_resources =
781 net_share_resources_lazy;
782 surf_network_model->model_private->update_actions_state =
783 net_update_actions_state_lazy;
784 } else if (surf_network_model->model_private->update_mechanism == UM_FULL) {
785 surf_network_model->model_private->share_resources =
786 net_share_resources_full;
787 surf_network_model->model_private->update_actions_state =
788 net_update_actions_state_full;
791 surf_network_model->model_private->update_resource_state =
792 net_update_resource_state;
793 surf_network_model->model_private->finalize = net_finalize;
795 surf_network_model->suspend = surf_action_suspend;
796 surf_network_model->resume = surf_action_resume;
797 surf_network_model->is_suspended = surf_action_is_suspended;
798 surf_cpu_model->set_max_duration = surf_action_set_max_duration;
800 surf_network_model->extension.network.communicate = net_communicate;
801 surf_network_model->extension.network.get_route = net_get_route;
802 surf_network_model->extension.network.get_link_bandwidth =
803 net_get_link_bandwidth;
804 surf_network_model->extension.network.get_link_latency =
805 net_get_link_latency;
806 surf_network_model->extension.network.link_shared = net_link_shared;
807 surf_network_model->extension.network.add_traces = net_add_traces;
808 surf_network_model->extension.network.create_resource =
811 if (!surf_network_model->model_private->maxmin_system)
812 surf_network_model->model_private->maxmin_system = lmm_system_new(surf_network_model->model_private->selective_update);
814 routing_model_create(net_create_resource("__loopback__",
815 498000000, NULL, 0.000015, NULL,
816 SURF_RESOURCE_ON, NULL,
817 SURF_LINK_FATPIPE, NULL));
819 if (surf_network_model->model_private->update_mechanism == UM_LAZY) {
820 surf_network_model->model_private->action_heap = xbt_heap_new(8, NULL);
821 xbt_heap_set_update_callback(surf_network_model->model_private->action_heap,
822 surf_action_lmm_update_index_heap);
823 surf_network_model->model_private->modified_set =
824 xbt_swag_new(xbt_swag_offset(comm, generic_lmm_action.action_list_hookup));
825 surf_network_model->model_private->maxmin_system->keep_track = surf_network_model->model_private->modified_set;
828 surf_network_model->gap_remove = NULL;
831 /************************************************************************/
832 /* New model based on LV08 and experimental results of MPI ping-pongs */
833 /************************************************************************/
834 /* @Inproceedings{smpi_ipdps, */
835 /* author={Pierre-Nicolas Clauss and Mark Stillwell and Stéphane Genaud and Frédéric Suter and Henri Casanova and Martin Quinson}, */
836 /* title={Single Node On-Line Simulation of {MPI} Applications with SMPI}, */
837 /* booktitle={25th IEEE International Parallel and Distributed Processing Symposium (IPDPS'11)}, */
838 /* address={Anchorage (Alaska) USA}, */
842 void surf_network_model_init_SMPI(void)
845 if (surf_network_model)
848 surf_network_model_init_internal();
849 latency_factor_callback = &smpi_latency_factor;
850 bandwidth_factor_callback = &smpi_bandwidth_factor;
851 bandwidth_constraint_callback = &smpi_bandwidth_constraint;
852 gap_append = &smpi_gap_append;
853 surf_network_model->gap_remove = &smpi_gap_remove;
854 net_define_callbacks();
855 xbt_dynar_push(model_list, &surf_network_model);
856 network_solve = lmm_solve;
858 xbt_cfg_setdefault_double(_surf_cfg_set, "network/sender_gap", 10e-6);
859 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 8775);
862 /************************************************************************/
863 /* New model based on optimizations discussed during Pedro Velho's thesis*/
864 /************************************************************************/
865 /* @techreport{VELHO:2011:HAL-00646896:1, */
866 /* url = {http://hal.inria.fr/hal-00646896/en/}, */
867 /* title = {{Flow-level network models: have we reached the limits?}}, */
868 /* author = {Velho, Pedro and Schnorr, Lucas and Casanova, Henri and Legrand, Arnaud}, */
869 /* type = {Rapport de recherche}, */
870 /* institution = {INRIA}, */
871 /* number = {RR-7821}, */
874 /* pdf = {http://hal.inria.fr/hal-00646896/PDF/rr-validity.pdf}, */
876 void surf_network_model_init_LegrandVelho(void)
878 if (surf_network_model)
881 surf_network_model_init_internal();
882 net_define_callbacks();
883 xbt_dynar_push(model_list, &surf_network_model);
884 network_solve = lmm_solve;
886 xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor",
888 xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
890 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 20537);
893 /***************************************************************************/
894 /* The nice TCP sharing model designed by Loris Marchal and Henri Casanova */
895 /***************************************************************************/
896 /* @TechReport{ rr-lip2002-40, */
897 /* author = {Henri Casanova and Loris Marchal}, */
898 /* institution = {LIP}, */
899 /* title = {A Network Model for Simulation of Grid Application}, */
900 /* number = {2002-40}, */
904 void surf_network_model_init_CM02(void)
907 if (surf_network_model)
910 surf_network_model_init_internal();
911 net_define_callbacks();
912 xbt_dynar_push(model_list, &surf_network_model);
913 network_solve = lmm_solve;
915 xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor", 1.0);
916 xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
918 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 0.0);
921 /***************************************************************************/
922 /* The models from Steven H. Low */
923 /***************************************************************************/
924 /* @article{Low03, */
925 /* author={Steven H. Low}, */
926 /* title={A Duality Model of {TCP} and Queue Management Algorithms}, */
928 /* journal={{IEEE/ACM} Transactions on Networking}, */
929 /* volume={11}, number={4}, */
931 void surf_network_model_init_Reno(void)
933 if (surf_network_model)
936 surf_network_model_init_internal();
937 net_define_callbacks();
939 xbt_dynar_push(model_list, &surf_network_model);
940 lmm_set_default_protocol_function(func_reno_f, func_reno_fp,
942 network_solve = lagrange_solve;
944 xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor", 10.4);
945 xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
947 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 8775);
951 void surf_network_model_init_Reno2(void)
953 if (surf_network_model)
956 surf_network_model_init_internal();
957 net_define_callbacks();
959 xbt_dynar_push(model_list, &surf_network_model);
960 lmm_set_default_protocol_function(func_reno2_f, func_reno2_fp,
962 network_solve = lagrange_solve;
964 xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor", 10.4);
965 xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
967 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S_parameter",
971 void surf_network_model_init_Vegas(void)
973 if (surf_network_model)
976 surf_network_model_init_internal();
977 net_define_callbacks();
979 xbt_dynar_push(model_list, &surf_network_model);
980 lmm_set_default_protocol_function(func_vegas_f, func_vegas_fp,
982 network_solve = lagrange_solve;
984 xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor", 10.4);
985 xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
987 xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 8775);