-/* Authors: Arnaud Legrand */
+/* Copyright (c) 2004, 2005, 2006, 2007, 2008, 2009, 2010. The SimGrid Team.
+ * All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
- under the terms of the license (GNU LGPL) which comes with this package. */
+ * under the terms of the license (GNU LGPL) which comes with this package. */
#include "network_private.h"
-#include "xbt/dict.h"
+#include "xbt/log.h"
+#include "xbt/str.h"
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(network, surf,
- "Logging specific to the SURF network module");
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_network, surf,
+ "Logging specific to the SURF network module");
-surf_network_resource_t surf_network_resource = NULL;
+surf_model_t surf_network_model = NULL;
+static lmm_system_t network_maxmin_system = NULL;
+static void (*network_solve) (lmm_system_t) = NULL;
-static xbt_dict_t network_link_set = NULL;
-static xbt_dict_t network_card_set = NULL;
+double sg_sender_gap = 0.0;
+double sg_latency_factor = 1.0; /* default value; can be set by model or from command line */
+double sg_bandwidth_factor = 1.0; /* default value; can be set by model or from command line */
+double sg_weight_S_parameter = 0.0; /* default value; can be set by model or from command line */
-static int card_number = 0;
-static network_link_t **routing_table = NULL;
-static int *routing_table_size = NULL;
+double sg_tcp_gamma = 0.0;
+int sg_network_fullduplex = 0;
-#define ROUTE(i,j) routing_table[(i)+(j)*card_number]
-#define ROUTE_SIZE(i,j) routing_table_size[(i)+(j)*card_number]
+xbt_dict_t gap_lookup = NULL;
-static void create_routing_table(void)
-{
- routing_table = xbt_new0(network_link_t *,card_number*card_number);
- routing_table_size = xbt_new0(int,card_number*card_number);
+static double net_get_link_bandwidth(const void *link);
+
+static void gap_append(double size, const link_CM02_t link, surf_action_network_CM02_t action) {
+ const char* src = link->lmm_resource.generic_resource.name;
+ xbt_fifo_t fifo;
+ surf_action_network_CM02_t last_action;
+ double bw;
+
+ if(sg_sender_gap > 0.0) {
+ if(!gap_lookup) {
+ gap_lookup = xbt_dict_new();
+ }
+ fifo = (xbt_fifo_t)xbt_dict_get_or_null(gap_lookup, src);
+ action->sender.gap = 0.0;
+ if(fifo && xbt_fifo_size(fifo) > 0) {
+ /* Compute gap from last send */
+ last_action = (surf_action_network_CM02_t)xbt_fifo_get_item_content(xbt_fifo_get_last_item(fifo));
+ bw = net_get_link_bandwidth(link);
+ action->sender.gap = last_action->sender.gap + max(sg_sender_gap, last_action->sender.size / bw);
+ action->latency += action->sender.gap;
+ }
+ /* Append action as last send */
+ action->sender.link_name = link->lmm_resource.generic_resource.name;
+ fifo = (xbt_fifo_t)xbt_dict_get_or_null(gap_lookup, action->sender.link_name);
+ if(!fifo) {
+ fifo = xbt_fifo_new();
+ xbt_dict_set(gap_lookup, action->sender.link_name, fifo, NULL);
+ }
+ action->sender.fifo_item = xbt_fifo_push(fifo, action);
+ action->sender.size = size;
+ }
+}
+
+static void gap_unknown(surf_action_network_CM02_t action) {
+ action->sender.gap = 0.0;
+ action->sender.link_name = NULL;
+ action->sender.fifo_item = NULL;
+ action->sender.size = 0.0;
}
-static void network_link_free(void *nw_link)
+static void gap_remove(surf_action_network_CM02_t action) {
+ xbt_fifo_t fifo;
+ size_t size;
+
+ if(sg_sender_gap > 0.0 && action->sender.link_name && action->sender.fifo_item) {
+ fifo = (xbt_fifo_t)xbt_dict_get_or_null(gap_lookup, action->sender.link_name);
+ xbt_fifo_remove_item(fifo, action->sender.fifo_item);
+ size = xbt_fifo_size(fifo);
+ if(size == 0) {
+ xbt_fifo_free(fifo);
+ xbt_dict_remove(gap_lookup, action->sender.link_name);
+ size = xbt_dict_size(gap_lookup);
+ if(size == 0) {
+ xbt_dict_free(&gap_lookup);
+ }
+ }
+ }
+}
+
+/******************************************************************************/
+/* Factors callbacks */
+/******************************************************************************/
+static double constant_latency_factor(double size)
{
- xbt_free(nw_link);
+ return sg_latency_factor;
}
-static network_link_t network_link_new(const char *name,
- xbt_maxmin_float_t bw_initial,
- tmgr_trace_t bw_trace,
- xbt_maxmin_float_t lat_initial,
- tmgr_trace_t lat_trace,
- e_surf_network_link_state_t state_initial,
- tmgr_trace_t state_trace)
+static double constant_bandwidth_factor(double size)
{
- network_link_t nw_link = xbt_new0(s_network_link_t, 1);
+ return sg_bandwidth_factor;
+}
-
- nw_link->resource = (surf_resource_t) surf_network_resource;
- nw_link->name = name;
- nw_link->bw_current = bw_initial;
- if (bw_trace)
- nw_link->bw_event =
- tmgr_history_add_trace(history, bw_trace, 0.0, 0, nw_link);
- nw_link->lat_current = lat_initial;
- if (lat_trace)
- nw_link->lat_event =
- tmgr_history_add_trace(history, lat_trace, 0.0, 0, nw_link);
- nw_link->state_current = state_initial;
- if (state_trace)
- nw_link->state_event =
- tmgr_history_add_trace(history, state_trace, 0.0, 0, nw_link);
+static double constant_bandwidth_constraint(double rate, double bound,
+ double size)
+{
+ return rate;
+}
- nw_link->constraint =
- lmm_constraint_new(maxmin_system, nw_link,
- nw_link->bw_current);
+/**********************/
+/* SMPI callbacks */
+/**********************/
+static double smpi_latency_factor(double size)
+{
+ /* 1 B <= size <= 1 KiB */
+ if (size <= 1024.0) {
+ return 1.0056;
+ }
- xbt_dict_set(network_link_set, name, nw_link, network_link_free);
+ /* 2 KiB <= size <= 32 KiB */
+ if (size <= 32768.0) {
+ return 1.8805;
+ }
- return nw_link;
+ /* 64 KiB <= size <= 4 MiB */
+ return 22.7111;
}
-static int network_card_new(const char *card_name)
+static double smpi_bandwidth_factor(double size)
{
- network_card_t card = NULL;
+ /* 1 B <= size <= 1 KiB */
+ if (size <= 1024.0) {
+ return 0.2758;
+ }
+
+ /* 2 KiB <= size <= 32 KiB */
+ if (size <= 32768.0) {
+ return 0.5477;
+ }
- xbt_dict_get(network_card_set, card_name, (void *) &card);
+ /* 64 KiB <= size <= 4 MiB */
+ return 0.9359;
+}
- if(!card) {
- card = xbt_new0(s_network_card_t,1);
- card->name=xbt_strdup(card_name);
- card->id=card_number++;
- xbt_dict_set(network_card_set, card_name, card, NULL);
- }
- return card->id;
+static double smpi_bandwidth_constraint(double rate, double bound,
+ double size)
+{
+ return rate < 0 ? bound : min(bound, rate * smpi_bandwidth_factor(size));
}
-static void route_new(int src_id, int dst_id,
- char* *links, int nb_link)
+
+static double (*latency_factor_callback) (double) =
+ &constant_latency_factor;
+static double (*bandwidth_factor_callback) (double) =
+ &constant_bandwidth_factor;
+static double (*bandwidth_constraint_callback) (double, double, double) =
+ &constant_bandwidth_constraint;
+
+
+static link_CM02_t net_link_new(char *name,
+ double bw_initial,
+ tmgr_trace_t bw_trace,
+ double lat_initial,
+ tmgr_trace_t lat_trace,
+ e_surf_resource_state_t
+ state_initial,
+ tmgr_trace_t state_trace,
+ e_surf_link_sharing_policy_t
+ policy, xbt_dict_t properties)
{
- network_link_t *link_list = NULL;
- int i ;
+ link_CM02_t nw_link = (link_CM02_t)
+ surf_resource_lmm_new(sizeof(s_link_CM02_t),
+ surf_network_model, name, properties,
+ network_maxmin_system,
+ sg_bandwidth_factor * bw_initial,
+ history,
+ state_initial, state_trace,
+ bw_initial, bw_trace);
+
+ xbt_assert1(!xbt_dict_get_or_null
+ (surf_network_model->resource_set, name),
+ "Link '%s' declared several times in the platform file.",
+ name);
- ROUTE_SIZE(src_id,dst_id) = nb_link;
- link_list = (ROUTE(src_id,dst_id) = xbt_new0(network_link_t,nb_link));
- for(i=0; i < nb_link; i++) {
- xbt_dict_get(network_link_set,links[i], (void *) &(link_list[i]));
- xbt_free(links[i]);
- }
- xbt_free(links);
+ nw_link->lat_current = lat_initial;
+ if (lat_trace)
+ nw_link->lat_event =
+ tmgr_history_add_trace(history, lat_trace, 0.0, 0, nw_link);
+
+ if (policy == SURF_LINK_FATPIPE)
+ lmm_constraint_shared(nw_link->lmm_resource.constraint);
+
+ xbt_dict_set(surf_network_model->resource_set, name, nw_link,
+ surf_resource_free);
+
+ return nw_link;
}
-/*
- Semantic: name initial bandwidth initial latency initial state
- bandwidth trace latency trace state trace
-
- Token: TOKEN_WORD TOKEN_WORD TOKEN_WORD TOKEN_WORD TOKEN_WORD TOKEN_WORD TOKEN_WORD
- Type: string float string float string ON/OFF string
-*/
-static void parse_network_link(void)
+static void net_parse_link_init(void)
{
- e_surf_token_t token;
- char *name;
- xbt_maxmin_float_t bw_initial;
+ char *name_link;
+ double bw_initial;
tmgr_trace_t bw_trace;
- xbt_maxmin_float_t lat_initial;
+ double lat_initial;
tmgr_trace_t lat_trace;
- e_surf_network_link_state_t state_initial;
+ e_surf_resource_state_t state_initial_link = SURF_RESOURCE_ON;
+ e_surf_link_sharing_policy_t policy_initial_link = SURF_LINK_SHARED;
tmgr_trace_t state_trace;
-
- name = xbt_strdup(surf_parse_text);
-
- surf_parse_float(&bw_initial);
- surf_parse_trace(&bw_trace);
- surf_parse_float(&lat_initial);
- surf_parse_trace(&lat_trace);
-
- token = surf_parse(); /* state_initial */
- xbt_assert1((token == TOKEN_WORD), "Parse error line %d", line_pos);
- if (strcmp(surf_parse_text, "ON") == 0)
- state_initial = SURF_NETWORK_LINK_ON;
- else if (strcmp(surf_parse_text, "OFF") == 0)
- state_initial = SURF_NETWORK_LINK_OFF;
- else {
- CRITICAL2("Invalid cpu state (line %d): %s neq ON or OFF\n", line_pos,
- surf_parse_text);
- xbt_abort();
+ XBT_DEBUG("link_CM02");
+ name_link = xbt_strdup(A_surfxml_link_id);
+ surf_parse_get_double(&bw_initial, A_surfxml_link_bandwidth);
+ bw_trace = tmgr_trace_new(A_surfxml_link_bandwidth_file);
+ surf_parse_get_double(&lat_initial, A_surfxml_link_latency);
+ lat_trace = tmgr_trace_new(A_surfxml_link_latency_file);
+
+ xbt_assert0((A_surfxml_link_state == A_surfxml_link_state_ON)
+ || (A_surfxml_link_state ==
+ A_surfxml_link_state_OFF), "Invalid state");
+ if (A_surfxml_link_state == A_surfxml_link_state_ON)
+ state_initial_link = SURF_RESOURCE_ON;
+ else if (A_surfxml_link_state == A_surfxml_link_state_OFF)
+ state_initial_link = SURF_RESOURCE_OFF;
+
+ if (A_surfxml_link_sharing_policy == A_surfxml_link_sharing_policy_SHARED)
+ policy_initial_link = SURF_LINK_SHARED;
+ else
+ {
+ if (A_surfxml_link_sharing_policy == A_surfxml_link_sharing_policy_FATPIPE)
+ policy_initial_link = SURF_LINK_FATPIPE;
+ else if (A_surfxml_link_sharing_policy == A_surfxml_link_sharing_policy_FULLDUPLEX)
+ policy_initial_link = SURF_LINK_FULLDUPLEX;
+ }
+
+ state_trace = tmgr_trace_new(A_surfxml_link_state_file);
+
+ if(policy_initial_link == SURF_LINK_FULLDUPLEX)
+ {
+ net_link_new(bprintf("%s_UP",name_link), bw_initial, bw_trace,
+ lat_initial, lat_trace, state_initial_link, state_trace,
+ policy_initial_link, xbt_dict_new());
+ net_link_new(bprintf("%s_DOWN",name_link), bw_initial, bw_trace,
+ lat_initial, lat_trace, state_initial_link, state_trace,
+ policy_initial_link, xbt_dict_new());
}
-
- surf_parse_trace(&state_trace);
-
- network_link_new(name, bw_initial, bw_trace,
- lat_initial, lat_trace,
- state_initial, state_trace);
-}
-
-/*
- Semantic: source destination network
- links
-
- Token: TOKEN_WORD TOKEN_WORD TOKEN_LP TOKEN_WORD* TOKEN_RP
- Type: string string string
-*/
-static void parse_route(int fake)
-{
- int src_id = -1;
- int dst_id = -1;
- int nb_link = 0;
- char **link_name = NULL;
- e_surf_token_t token;
-
- src_id = network_card_new(surf_parse_text);
-
- token = surf_parse();
- xbt_assert1((token == TOKEN_WORD), "Parse error line %d", line_pos);
- dst_id = network_card_new(surf_parse_text);
-
- token = surf_parse();
- xbt_assert1((token == TOKEN_LP), "Parse error line %d", line_pos);
-
- while((token = surf_parse())==TOKEN_WORD) {
- if(!fake) {
- nb_link++;
- link_name=xbt_realloc(link_name, (nb_link) * sizeof(char*));
- link_name[(nb_link)-1]=xbt_strdup(surf_parse_text);
- }
+ else
+ {
+ net_link_new(name_link, bw_initial, bw_trace,
+ lat_initial, lat_trace, state_initial_link, state_trace,
+ policy_initial_link, xbt_dict_new());
}
- xbt_assert1((token == TOKEN_RP), "Parse error line %d", line_pos);
- if(!fake) route_new(src_id,dst_id,link_name, nb_link);
}
-static void parse_file(const char *file)
+static void net_create_resource(char *name,
+ double bw_initial,
+ tmgr_trace_t bw_trace,
+ double lat_initial,
+ tmgr_trace_t lat_trace,
+ e_surf_resource_state_t
+ state_initial,
+ tmgr_trace_t state_trace,
+ e_surf_link_sharing_policy_t policy,
+ xbt_dict_t properties)
{
- e_surf_token_t token;
-
- /* Figuring out the network links in the system */
- find_section(file, "NETWORK");
- while (1) {
- token = surf_parse();
-
- if (token == TOKEN_END_SECTION)
- break;
- if (token == TOKEN_NEWLINE)
- continue;
+ net_link_new(name, bw_initial, bw_trace,
+ lat_initial, lat_trace, state_initial, state_trace,
+ policy, xbt_dict_new());
+}
- if (token == TOKEN_WORD)
- parse_network_link();
- else {
- CRITICAL1("Parse error line %d\n", line_pos);
- xbt_abort();
- }
+static void net_add_traces(void)
+{
+ xbt_dict_cursor_t cursor = NULL;
+ char *trace_name, *elm;
+
+ static int called = 0;
+ if (called)
+ return;
+ called = 1;
+
+ /* connect all traces relative to network */
+ xbt_dict_foreach(trace_connect_list_link_avail, cursor, trace_name, elm) {
+ tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
+ link_CM02_t link =
+ xbt_dict_get_or_null(surf_network_model->resource_set, elm);
+
+ xbt_assert2(link, "Cannot connect trace %s to link %s: link undefined",
+ trace_name, elm);
+ xbt_assert2(trace,
+ "Cannot connect trace %s to link %s: trace undefined",
+ trace_name, elm);
+
+ link->lmm_resource.state_event =
+ tmgr_history_add_trace(history, trace, 0.0, 0, link);
}
- close_section("NETWORK");
- /* Figuring out the network cards used */
- find_section(file, "ROUTE");
- while (1) {
- token = surf_parse();
+ xbt_dict_foreach(trace_connect_list_bandwidth, cursor, trace_name, elm) {
+ tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
+ link_CM02_t link =
+ xbt_dict_get_or_null(surf_network_model->resource_set, elm);
- if (token == TOKEN_END_SECTION)
- break;
- if (token == TOKEN_NEWLINE)
- continue;
+ xbt_assert2(link, "Cannot connect trace %s to link %s: link undefined",
+ trace_name, elm);
+ xbt_assert2(trace,
+ "Cannot connect trace %s to link %s: trace undefined",
+ trace_name, elm);
- if (token == TOKEN_WORD)
- parse_route(1);
- else {
- CRITICAL1("Parse error line %d\n", line_pos);
- xbt_abort();
- }
+ link->lmm_resource.power.event =
+ tmgr_history_add_trace(history, trace, 0.0, 0, link);
}
- close_section("ROUTE");
-
- create_routing_table();
- /* Building the routes */
- find_section(file, "ROUTE");
- while (1) {
- token = surf_parse();
+ xbt_dict_foreach(trace_connect_list_latency, cursor, trace_name, elm) {
+ tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
+ link_CM02_t link =
+ xbt_dict_get_or_null(surf_network_model->resource_set, elm);
- if (token == TOKEN_END_SECTION)
- break;
- if (token == TOKEN_NEWLINE)
- continue;
+ xbt_assert2(link, "Cannot connect trace %s to link %s: link undefined",
+ trace_name, elm);
+ xbt_assert2(trace,
+ "Cannot connect trace %s to link %s: trace undefined",
+ trace_name, elm);
- if (token == TOKEN_WORD)
- parse_route(0);
- else {
- CRITICAL1("Parse error line %d\n", line_pos);
- xbt_abort();
- }
+ link->lat_event = tmgr_history_add_trace(history, trace, 0.0, 0, link);
}
- close_section("ROUTE");
}
-static void *name_service(const char *name)
+static void net_define_callbacks(const char *file)
{
- network_card_t card = NULL;
-
- xbt_dict_get(network_card_set, name, (void *) &card);
-
- return card;
+ /* Figuring out the network links */
+ surfxml_add_callback(STag_surfxml_link_cb_list, &net_parse_link_init);
+ surfxml_add_callback(ETag_surfxml_platform_cb_list, &net_add_traces);
}
-static const char *get_resource_name(void *resource_id)
+static int net_resource_used(void *resource_id)
{
- return ((network_card_t) resource_id)->name;
+ return lmm_constraint_used(network_maxmin_system,
+ ((surf_resource_lmm_t)
+ resource_id)->constraint);
}
-static int resource_used(void *resource_id)
+static int net_action_unref(surf_action_t action)
{
- return lmm_constraint_used(maxmin_system,
- ((network_link_t) resource_id)->constraint);
+ action->refcount--;
+ if (!action->refcount) {
+ xbt_swag_remove(action, action->state_set);
+ if (((surf_action_network_CM02_t) action)->variable)
+ lmm_variable_free(network_maxmin_system,
+ ((surf_action_network_CM02_t) action)->variable);
+#ifdef HAVE_TRACING
+ xbt_free(((surf_action_network_CM02_t) action)->src_name);
+ xbt_free(((surf_action_network_CM02_t) action)->dst_name);
+ if (action->category)
+ xbt_free(action->category);
+#endif
+ surf_action_free(&action);
+ return 1;
+ }
+ return 0;
}
-static void action_free(surf_action_t action)
+static void net_action_cancel(surf_action_t action)
{
- surf_action_network_t Action = (surf_action_network_t) action;
-
- xbt_swag_remove(action, action->state_set);
- lmm_variable_free(maxmin_system, Action->variable);
- xbt_free(action);
-
- return;
+ surf_network_model->action_state_set(action, SURF_ACTION_FAILED);
}
-static void action_cancel(surf_action_t action)
+void net_action_recycle(surf_action_t action)
{
return;
}
-static void action_recycle(surf_action_t action)
+#ifdef HAVE_LATENCY_BOUND_TRACKING
+int net_get_link_latency_limited(surf_action_t action)
{
- return;
+ return action->latency_limited;
}
+#endif
-static void action_change_state(surf_action_t action,
- e_surf_action_state_t state)
+double net_action_get_remains(surf_action_t action)
{
- surf_action_change_state(action, state);
- return;
+ return action->remains;
}
-static xbt_heap_float_t share_resources(xbt_heap_float_t now)
+static double net_share_resources(double now)
{
- surf_action_network_t action = NULL;
+ s_surf_action_network_CM02_t s_action;
+ surf_action_network_CM02_t action = NULL;
xbt_swag_t running_actions =
- surf_network_resource->common_public->states.running_action_set;
- xbt_maxmin_float_t min = -1;
- xbt_maxmin_float_t value = -1;
- lmm_solve(maxmin_system);
+ surf_network_model->states.running_action_set;
+ double min;
+
+ min = generic_maxmin_share_resources(running_actions,
+ xbt_swag_offset(s_action,
+ variable),
+ network_maxmin_system,
+ network_solve);
- action = xbt_swag_getFirst(running_actions);
- if (!action)
- return -1.0;
- value = lmm_variable_getvalue(action->variable);
- min = action->generic_action.remains / value;
+#define VARIABLE(action) (*((lmm_variable_t*)(((char *) (action)) + xbt_swag_offset(s_action, variable) )))
xbt_swag_foreach(action, running_actions) {
- value = action->generic_action.remains /
- lmm_variable_getvalue(action->variable);
- if (value < min)
- min = value;
+#ifdef HAVE_LATENCY_BOUND_TRACKING
+ if (lmm_is_variable_limited_by_latency(action->variable)) {
+ (action->generic_action).latency_limited = 1;
+ } else {
+ (action->generic_action).latency_limited = 0;
+ }
+#endif
+ if (action->latency > 0) {
+ if (min < 0)
+ min = action->latency;
+ else if (action->latency < min)
+ min = action->latency;
+ }
}
+ XBT_DEBUG("Min of share resources %f", min);
+
return min;
}
-
-static void update_actions_state(xbt_heap_float_t now,
- xbt_heap_float_t delta)
+static void net_update_actions_state(double now, double delta)
{
- surf_action_network_t action = NULL;
- surf_action_network_t next_action = NULL;
+ double deltap = 0.0;
+ surf_action_network_CM02_t action = NULL;
+ surf_action_network_CM02_t next_action = NULL;
xbt_swag_t running_actions =
- surf_network_resource->common_public->states.running_action_set;
- xbt_swag_t failed_actions =
- surf_network_resource->common_public->states.failed_action_set;
+ surf_network_model->states.running_action_set;
+ /*
+ xbt_swag_t failed_actions =
+ surf_network_model->states.failed_action_set;
+ */
xbt_swag_foreach_safe(action, next_action, running_actions) {
- action->generic_action.remains -=
- lmm_variable_getvalue(action->variable) * delta;
-/* if(action->generic_action.remains<.00001) action->generic_action.remains=0; */
-
- if (action->generic_action.remains <= 0) {
- action_change_state((surf_action_t) action, SURF_ACTION_DONE);
- } else { /* Need to check that none of the resource has failed */
- lmm_constraint_t cnst = NULL;
- int i = 0;
- network_link_t nw_link = NULL;
-
- while ((cnst =
- lmm_get_cnst_from_var(maxmin_system, action->variable,
- i++))) {
- nw_link = lmm_constraint_id(cnst);
- if (nw_link->state_current == SURF_NETWORK_LINK_OFF) {
- action_change_state((surf_action_t) action, SURF_ACTION_FAILED);
- break;
- }
+ deltap = delta;
+ if (action->latency > 0) {
+ if (action->latency > deltap) {
+ double_update(&(action->latency), deltap);
+ deltap = 0.0;
+ } else {
+ double_update(&(deltap), action->latency);
+ action->latency = 0.0;
}
+ if ((action->latency == 0.0) && !(action->suspended))
+ lmm_update_variable_weight(network_maxmin_system, action->variable,
+ action->weight);
+ }
+#ifdef HAVE_TRACING
+ xbt_dynar_t route =
+ global_routing->get_route(action->src_name, action->dst_name);
+ link_CM02_t link;
+ unsigned int i;
+ xbt_dynar_foreach(route, i, link) {
+ TRACE_surf_link_set_utilization(link->lmm_resource.generic_resource.name,
+ action->generic_action.data,
+ (surf_action_t) action,
+ lmm_variable_getvalue
+ (action->variable), now - delta,
+ delta);
+ }
+#endif
+ if(!lmm_get_number_of_cnst_from_var(network_maxmin_system, action->variable)) {
+ /* There is actually no link used, hence an infinite bandwidth.
+ * This happens often when using models like vivaldi.
+ * In such case, just make sure that the action completes immediately.
+ */
+ double_update(&(action->generic_action.remains),
+ action->generic_action.remains);
+ }
+ double_update(&(action->generic_action.remains),
+ lmm_variable_getvalue(action->variable) * deltap);
+ if (action->generic_action.max_duration != NO_MAX_DURATION)
+ double_update(&(action->generic_action.max_duration), delta);
+
+ if ((action->generic_action.remains <= 0) &&
+ (lmm_get_variable_weight(action->variable) > 0)) {
+ action->generic_action.finish = surf_get_clock();
+ surf_network_model->action_state_set((surf_action_t) action,
+ SURF_ACTION_DONE);
+ gap_remove(action);
+ } else if ((action->generic_action.max_duration != NO_MAX_DURATION)
+ && (action->generic_action.max_duration <= 0)) {
+ action->generic_action.finish = surf_get_clock();
+ surf_network_model->action_state_set((surf_action_t) action,
+ SURF_ACTION_DONE);
+ gap_remove(action);
}
- }
-
- xbt_swag_foreach_safe(action, next_action, failed_actions) {
- lmm_variable_disable(maxmin_system, action->variable);
}
return;
}
-static void update_resource_state(void *id,
- tmgr_trace_event_t event_type,
- xbt_maxmin_float_t value)
+static void net_update_resource_state(void *id,
+ tmgr_trace_event_t event_type,
+ double value, double date)
{
- network_link_t nw_link = id;
-
-/* printf("[" XBT_HEAP_FLOAT_T "] Asking to update network card \"%s\" with value " */
-/* XBT_MAXMIN_FLOAT_T " for event %p\n", surf_get_clock(), nw_link->name, */
-/* value, event_type); */
-
- if (event_type == nw_link->bw_event) {
- nw_link->bw_current = value;
- lmm_update_constraint_bound(maxmin_system, nw_link->constraint,
- nw_link->bw_current);
+ link_CM02_t nw_link = id;
+ /* printf("[" "%lg" "] Asking to update network card \"%s\" with value " */
+ /* "%lg" " for event %p\n", surf_get_clock(), nw_link->name, */
+ /* value, event_type); */
+
+ if (event_type == nw_link->lmm_resource.power.event) {
+ double delta =
+ sg_weight_S_parameter / value - sg_weight_S_parameter /
+ (nw_link->lmm_resource.power.peak *
+ nw_link->lmm_resource.power.scale);
+ lmm_variable_t var = NULL;
+ lmm_element_t elem = NULL;
+ surf_action_network_CM02_t action = NULL;
+
+ nw_link->lmm_resource.power.peak = value;
+ lmm_update_constraint_bound(network_maxmin_system,
+ nw_link->lmm_resource.constraint,
+ sg_bandwidth_factor *
+ (nw_link->lmm_resource.power.peak *
+ nw_link->lmm_resource.power.scale));
+#ifdef HAVE_TRACING
+ TRACE_surf_link_set_bandwidth(date, nw_link->lmm_resource.generic_resource.name,
+ sg_bandwidth_factor *
+ (nw_link->lmm_resource.power.peak *
+ nw_link->lmm_resource.power.scale));
+#endif
+ if (sg_weight_S_parameter > 0) {
+ while ((var = lmm_get_var_from_cnst
+ (network_maxmin_system, nw_link->lmm_resource.constraint,
+ &elem))) {
+ action = lmm_variable_id(var);
+ action->weight += delta;
+ if (!(action->suspended))
+ lmm_update_variable_weight(network_maxmin_system,
+ action->variable, action->weight);
+ }
+ }
+ if (tmgr_trace_event_free(event_type))
+ nw_link->lmm_resource.power.event = NULL;
} else if (event_type == nw_link->lat_event) {
+ double delta = value - nw_link->lat_current;
+ lmm_variable_t var = NULL;
+ lmm_element_t elem = NULL;
+ surf_action_network_CM02_t action = NULL;
+
nw_link->lat_current = value;
- } else if (event_type == nw_link->state_event) {
+ while ((var = lmm_get_var_from_cnst
+ (network_maxmin_system, nw_link->lmm_resource.constraint,
+ &elem))) {
+ action = lmm_variable_id(var);
+ action->lat_current += delta;
+ action->weight += delta;
+ if (action->rate < 0)
+ lmm_update_variable_bound(network_maxmin_system, action->variable,
+ sg_tcp_gamma / (2.0 *
+ action->lat_current));
+ else {
+ lmm_update_variable_bound(network_maxmin_system, action->variable,
+ min(action->rate,
+ sg_tcp_gamma / (2.0 *
+ action->lat_current)));
+
+ if (action->rate < sg_tcp_gamma / (2.0 * action->lat_current)) {
+ XBT_INFO("Flow is limited BYBANDWIDTH");
+ } else {
+ XBT_INFO("Flow is limited BYLATENCY, latency of flow is %f",
+ action->lat_current);
+ }
+ }
+ if (!(action->suspended))
+ lmm_update_variable_weight(network_maxmin_system, action->variable,
+ action->weight);
+
+ }
+ if (tmgr_trace_event_free(event_type))
+ nw_link->lat_event = NULL;
+ } else if (event_type == nw_link->lmm_resource.state_event) {
if (value > 0)
- nw_link->state_current = SURF_NETWORK_LINK_ON;
- else
- nw_link->state_current = SURF_NETWORK_LINK_OFF;
+ nw_link->lmm_resource.state_current = SURF_RESOURCE_ON;
+ else {
+ lmm_constraint_t cnst = nw_link->lmm_resource.constraint;
+ lmm_variable_t var = NULL;
+ lmm_element_t elem = NULL;
+
+ nw_link->lmm_resource.state_current = SURF_RESOURCE_OFF;
+ while ((var = lmm_get_var_from_cnst
+ (network_maxmin_system, cnst, &elem))) {
+ surf_action_t action = lmm_variable_id(var);
+
+ if (surf_action_state_get(action) == SURF_ACTION_RUNNING ||
+ surf_action_state_get(action) == SURF_ACTION_READY) {
+ action->finish = date;
+ surf_network_model->action_state_set(action, SURF_ACTION_FAILED);
+ }
+ }
+ }
+ if (tmgr_trace_event_free(event_type))
+ nw_link->lmm_resource.state_event = NULL;
} else {
- CRITICAL0("Unknown event ! \n");
+ XBT_CRITICAL("Unknown event ! \n");
xbt_abort();
}
return;
}
-static surf_action_t communicate(void *src, void *dst,
- xbt_maxmin_float_t size)
+
+static surf_action_t net_communicate(const char *src_name,
+ const char *dst_name, double size,
+ double rate)
{
- surf_action_network_t action = NULL;
- network_card_t card_src = src;
- network_card_t card_dst = dst;
- int route_size = ROUTE_SIZE(card_src->id,card_dst->id);
- network_link_t *route = ROUTE(card_src->id,card_dst->id);
- int i;
+ unsigned int i;
+ link_CM02_t link;
+ int failed = 0;
+ surf_action_network_CM02_t action = NULL;
+ double bandwidth_bound;
+ double latency=0.0;
+ /* LARGE PLATFORMS HACK:
+ Add a link_CM02_t *link and a int link_nb to network_card_CM02_t. It will represent local links for this node
+ Use the cluster_id for ->id */
+
+ xbt_dynar_t back_route = NULL;
+ int constraints_per_variable = 0;
+ // I will need this route for some time so let's call get_route_no_cleanup
+ xbt_dynar_t route = global_routing->get_route_no_cleanup(src_name, dst_name);
+
+
+ if (sg_network_fullduplex == 1) {
+ back_route = global_routing->get_route(dst_name, src_name);
+ }
- action = xbt_new0(s_surf_action_network_t, 1);
+ /* LARGE PLATFORMS HACK:
+ total_route_size = route_size + src->link_nb + dst->nb */
- action->generic_action.cost = size;
- action->generic_action.remains = size;
- action->generic_action.start = -1.0;
- action->generic_action.finish = -1.0;
- action->generic_action.callback = NULL;
- action->generic_action.resource_type =
- (surf_resource_t) surf_network_resource;
+ XBT_IN("(%s,%s,%g,%g)", src_name, dst_name, size, rate);
+ /* LARGE PLATFORMS HACK:
+ assert on total_route_size */
+ latency = global_routing->get_latency(src_name,dst_name);
+ xbt_assert2(xbt_dynar_length(route) || latency,
+ "You're trying to send data from %s to %s but there is no connection at all between these two hosts.",
+ src_name, dst_name);
- action->generic_action.state_set =
- surf_network_resource->common_public->states.running_action_set;
+ xbt_dynar_foreach(route, i, link) {
+ if (link->lmm_resource.state_current == SURF_RESOURCE_OFF) {
+ failed = 1;
+ break;
+ }
+ }
+ action =
+ surf_action_new(sizeof(s_surf_action_network_CM02_t), size,
+ surf_network_model, failed);
+#ifdef HAVE_LATENCY_BOUND_TRACKING
+ (action->generic_action).latency_limited = 0;
+#endif
+ action->weight = action->latency = latency;
xbt_swag_insert(action, action->generic_action.state_set);
+ action->rate = rate;
+
+ bandwidth_bound = -1.0;
+
+ xbt_dynar_foreach(route, i, link) {
+ action->weight +=
+ sg_weight_S_parameter /
+ (link->lmm_resource.power.peak * link->lmm_resource.power.scale);
+ if (bandwidth_bound < 0.0)
+ bandwidth_bound =
+ (*bandwidth_factor_callback) (size) *
+ (link->lmm_resource.power.peak * link->lmm_resource.power.scale);
+ else
+ bandwidth_bound =
+ min(bandwidth_bound,
+ (*bandwidth_factor_callback) (size) *
+ (link->lmm_resource.power.peak *
+ link->lmm_resource.power.scale));
+ }
+ /* LARGE PLATFORMS HACK:
+ Add src->link and dst->link latencies */
+ action->lat_current = action->latency;
+ action->latency *= (*latency_factor_callback) (size);
+ action->rate =
+ (*bandwidth_constraint_callback) (action->rate, bandwidth_bound,
+ size);
+
+ if(xbt_dynar_length(route) > 0) {
+ link = *(link_CM02_t*)xbt_dynar_get_ptr(route, 0);
+ gap_append(size, link, action);
+ XBT_DEBUG("Comm %p: %s -> %s gap=%f (lat=%f)",
+ action, src_name, dst_name, action->sender.gap, action->latency);
+ } else {
+ gap_unknown(action);
+ }
+
+
+ /* LARGE PLATFORMS HACK:
+ lmm_variable_new(..., total_route_size) */
+ if (back_route != NULL) {
+ constraints_per_variable =
+ xbt_dynar_length(route) + xbt_dynar_length(back_route);
+ } else {
+ constraints_per_variable = xbt_dynar_length(route);
+ }
+
+ if (action->latency > 0)
+ action->variable =
+ lmm_variable_new(network_maxmin_system, action, 0.0, -1.0,
+ constraints_per_variable);
+ else
+ action->variable =
+ lmm_variable_new(network_maxmin_system, action, 1.0, -1.0,
+ constraints_per_variable);
+
+ if (action->rate < 0) {
+ if (action->lat_current > 0)
+ lmm_update_variable_bound(network_maxmin_system, action->variable,
+ sg_tcp_gamma / (2.0 *
+ action->lat_current));
+ else
+ lmm_update_variable_bound(network_maxmin_system, action->variable,
+ -1.0);
+ } else {
+ if (action->lat_current > 0)
+ lmm_update_variable_bound(network_maxmin_system, action->variable,
+ min(action->rate,
+ sg_tcp_gamma / (2.0 *
+ action->lat_current)));
+ else
+ lmm_update_variable_bound(network_maxmin_system, action->variable,
+ action->rate);
+ }
+
+ xbt_dynar_foreach(route, i, link) {
+ lmm_expand(network_maxmin_system, link->lmm_resource.constraint,
+ action->variable, 1.0);
+ }
- action->variable = lmm_variable_new(maxmin_system, action, 1.0, -1.0,
- route_size);
- for(i=0; i<route_size; i++)
- lmm_expand(maxmin_system, route[i]->constraint, action->variable,
- 1.0);
+ if (sg_network_fullduplex == 1) {
+ XBT_DEBUG("Fullduplex active adding backward flow using 5%c", '%');
+ xbt_dynar_foreach(back_route, i, link) {
+ lmm_expand(network_maxmin_system, link->lmm_resource.constraint,
+ action->variable, .05);
+ }
+ }
+ /* LARGE PLATFORMS HACK:
+ expand also with src->link and dst->link */
+#ifdef HAVE_TRACING
+ action->src_name = xbt_strdup(src_name);
+
+ action->dst_name = xbt_strdup(dst_name);
+#endif
+
+ xbt_dynar_free(&route);
+ XBT_OUT();
return (surf_action_t) action;
}
-static void finalize(void)
+static xbt_dynar_t net_get_route(const char *src, const char *dst)
+{
+ return global_routing->get_route(src, dst);
+}
+
+static double net_get_link_bandwidth(const void *link)
+{
+ surf_resource_lmm_t lmm = (surf_resource_lmm_t) link;
+ return lmm->power.peak * lmm->power.scale;
+}
+
+static double net_get_link_latency(const void *link)
+{
+ return ((link_CM02_t) link)->lat_current;
+}
+
+static int net_link_shared(const void *link)
+{
+ return
+ lmm_constraint_is_shared(((surf_resource_lmm_t) link)->constraint);
+}
+
+static void net_action_suspend(surf_action_t action)
+{
+ ((surf_action_network_CM02_t) action)->suspended = 1;
+ lmm_update_variable_weight(network_maxmin_system,
+ ((surf_action_network_CM02_t)
+ action)->variable, 0.0);
+}
+
+static void net_action_resume(surf_action_t action)
+{
+ if (((surf_action_network_CM02_t) action)->suspended) {
+ lmm_update_variable_weight(network_maxmin_system,
+ ((surf_action_network_CM02_t)
+ action)->variable,
+ ((surf_action_network_CM02_t)
+ action)->weight);
+ ((surf_action_network_CM02_t) action)->suspended = 0;
+ }
+}
+
+static int net_action_is_suspended(surf_action_t action)
+{
+ return ((surf_action_network_CM02_t) action)->suspended;
+}
+
+void net_action_set_max_duration(surf_action_t action, double duration)
+{
+ action->max_duration = duration;
+}
+
+#ifdef HAVE_TRACING
+static void net_action_set_category(surf_action_t action, const char *category)
+{
+ action->category = xbt_strdup (category);
+}
+#endif
+
+static void net_finalize(void)
{
- xbt_dict_free(&network_card_set);
- xbt_dict_free(&network_link_set);
- xbt_swag_free(surf_network_resource->common_public->states.ready_action_set);
- xbt_swag_free(surf_network_resource->common_public->states.
- running_action_set);
- xbt_swag_free(surf_network_resource->common_public->states.
- failed_action_set);
- xbt_swag_free(surf_network_resource->common_public->states.done_action_set);
- xbt_free(surf_network_resource->common_public);
- xbt_free(surf_network_resource->common_private);
- xbt_free(surf_network_resource->extension_public);
+ surf_model_exit(surf_network_model);
+ surf_network_model = NULL;
+
+ global_routing->finalize();
- xbt_free(surf_network_resource);
- surf_network_resource = NULL;
+ lmm_system_free(network_maxmin_system);
+ network_maxmin_system = NULL;
}
-static void surf_network_resource_init_internal(void)
+static void surf_network_model_init_internal(void)
{
- s_surf_action_t action;
+ surf_network_model = surf_model_init();
+
+ surf_network_model->name = "network";
+ surf_network_model->action_unref = net_action_unref;
+ surf_network_model->action_cancel = net_action_cancel;
+ surf_network_model->action_recycle = net_action_recycle;
+ surf_network_model->get_remains = net_action_get_remains;
+#ifdef HAVE_LATENCY_BOUND_TRACKING
+ surf_network_model->get_latency_limited = net_get_link_latency_limited;
+#endif
+
+ surf_network_model->model_private->resource_used = net_resource_used;
+ surf_network_model->model_private->share_resources = net_share_resources;
+ surf_network_model->model_private->update_actions_state =
+ net_update_actions_state;
+ surf_network_model->model_private->update_resource_state =
+ net_update_resource_state;
+ surf_network_model->model_private->finalize = net_finalize;
+
+ surf_network_model->suspend = net_action_suspend;
+ surf_network_model->resume = net_action_resume;
+ surf_network_model->is_suspended = net_action_is_suspended;
+ surf_network_model->set_max_duration = net_action_set_max_duration;
+#ifdef HAVE_TRACING
+ surf_network_model->set_category = net_action_set_category;
+#endif
+
+ surf_network_model->extension.network.communicate = net_communicate;
+ surf_network_model->extension.network.get_route = net_get_route;
+ surf_network_model->extension.network.get_link_bandwidth =
+ net_get_link_bandwidth;
+ surf_network_model->extension.network.get_link_latency =
+ net_get_link_latency;
+ surf_network_model->extension.network.link_shared = net_link_shared;
+ surf_network_model->extension.network.add_traces = net_add_traces;
+ surf_network_model->extension.network.create_resource =
+ net_create_resource;
+
+ if (!network_maxmin_system)
+ network_maxmin_system = lmm_system_new();
+
+ routing_model_create(sizeof(link_CM02_t),
+ net_link_new(xbt_strdup("__loopback__"),
+ 498000000, NULL, 0.000015, NULL,
+ SURF_RESOURCE_ON, NULL,
+ SURF_LINK_FATPIPE, NULL),
+ net_get_link_latency);
+}
+
- surf_network_resource = xbt_new0(s_surf_network_resource_t, 1);
- surf_network_resource->common_private =
- xbt_new0(s_surf_resource_private_t, 1);
- surf_network_resource->common_public =
- xbt_new0(s_surf_resource_public_t, 1);
-/* surf_network_resource->extension_private = xbt_new0(s_surf_network_resource_extension_private_t,1); */
- surf_network_resource->extension_public =
- xbt_new0(s_surf_network_resource_extension_public_t, 1);
+/************************************************************************/
+/* New model based on LV08 and experimental results of MPI ping-pongs */
+/************************************************************************/
+void surf_network_model_init_SMPI(const char *filename)
+{
- surf_network_resource->common_public->states.ready_action_set =
- xbt_swag_new(xbt_swag_offset(action, state_hookup));
- surf_network_resource->common_public->states.running_action_set =
- xbt_swag_new(xbt_swag_offset(action, state_hookup));
- surf_network_resource->common_public->states.failed_action_set =
- xbt_swag_new(xbt_swag_offset(action, state_hookup));
- surf_network_resource->common_public->states.done_action_set =
- xbt_swag_new(xbt_swag_offset(action, state_hookup));
+ if (surf_network_model)
+ return;
+ surf_network_model_init_internal();
+ latency_factor_callback = &smpi_latency_factor;
+ bandwidth_factor_callback = &smpi_bandwidth_factor;
+ bandwidth_constraint_callback = &smpi_bandwidth_constraint;
+ net_define_callbacks(filename);
+ xbt_dynar_push(model_list, &surf_network_model);
+ network_solve = lmm_solve;
+
+ xbt_cfg_setdefault_double(_surf_cfg_set, "network/sender_gap", 10e-6);
+ xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 8775);
+
+ update_model_description(surf_network_model_description,
+ "SMPI", surf_network_model);
+}
- surf_network_resource->common_public->name_service = name_service;
- surf_network_resource->common_public->get_resource_name =
- get_resource_name;
- surf_network_resource->common_public->action_get_state =
- surf_action_get_state;
- surf_network_resource->common_public->action_free = action_free;
- surf_network_resource->common_public->action_cancel = action_cancel;
- surf_network_resource->common_public->action_recycle = action_recycle;
- surf_network_resource->common_public->action_change_state =
- action_change_state;
+/************************************************************************/
+/* New model based on optimizations discussed during this thesis */
+/************************************************************************/
+void surf_network_model_init_LegrandVelho(const char *filename)
+{
- surf_network_resource->common_private->resource_used = resource_used;
- surf_network_resource->common_private->share_resources = share_resources;
- surf_network_resource->common_private->update_actions_state =
- update_actions_state;
- surf_network_resource->common_private->update_resource_state =
- update_resource_state;
- surf_network_resource->common_private->finalize = finalize;
+ if (surf_network_model)
+ return;
+ surf_network_model_init_internal();
+ net_define_callbacks(filename);
+ xbt_dynar_push(model_list, &surf_network_model);
+ network_solve = lmm_solve;
- surf_network_resource->extension_public->communicate = communicate;
+ xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor", 10.4);
+ xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
+ 0.92);
+ xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 8775);
- network_link_set = xbt_dict_new();
- network_card_set = xbt_dict_new();
+ update_model_description(surf_network_model_description,
+ "LV08", surf_network_model);
+}
- xbt_assert0(maxmin_system, "surf_init has to be called first!");
+/***************************************************************************/
+/* The nice TCP sharing model designed by Loris Marchal and Henri Casanova */
+/***************************************************************************/
+/* @TechReport{ rr-lip2002-40, */
+/* author = {Henri Casanova and Loris Marchal}, */
+/* institution = {LIP}, */
+/* title = {A Network Model for Simulation of Grid Application}, */
+/* number = {2002-40}, */
+/* month = {oct}, */
+/* year = {2002} */
+/* } */
+void surf_network_model_init_CM02(const char *filename)
+{
+
+ if (surf_network_model)
+ return;
+ surf_network_model_init_internal();
+ net_define_callbacks(filename);
+ xbt_dynar_push(model_list, &surf_network_model);
+ network_solve = lmm_solve;
+
+ update_model_description(surf_network_model_description,
+ "CM02", surf_network_model);
+}
+
+void surf_network_model_init_Reno(const char *filename)
+{
+ if (surf_network_model)
+ return;
+ surf_network_model_init_internal();
+ net_define_callbacks(filename);
+
+ xbt_dynar_push(model_list, &surf_network_model);
+ lmm_set_default_protocol_function(func_reno_f, func_reno_fp,
+ func_reno_fpi);
+ network_solve = lagrange_solve;
+
+ xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor", 10.4);
+ xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
+ 0.92);
+ xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 8775);
+
+ update_model_description(surf_network_model_description,
+ "Reno", surf_network_model);
+}
+
+
+void surf_network_model_init_Reno2(const char *filename)
+{
+ if (surf_network_model)
+ return;
+ surf_network_model_init_internal();
+ net_define_callbacks(filename);
+
+ xbt_dynar_push(model_list, &surf_network_model);
+ lmm_set_default_protocol_function(func_reno2_f, func_reno2_fp,
+ func_reno2_fpi);
+ network_solve = lagrange_solve;
+
+ xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor", 10.4);
+ xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
+ 0.92);
+ xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S_parameter",
+ 8775);
+
+ update_model_description(surf_network_model_description,
+ "Reno2", surf_network_model);
}
-void surf_network_resource_init(const char *filename)
+void surf_network_model_init_Vegas(const char *filename)
{
- surf_network_resource_init_internal();
- parse_file(filename);
- xbt_dynar_push(resource_list, &surf_network_resource);
+ if (surf_network_model)
+ return;
+ surf_network_model_init_internal();
+ net_define_callbacks(filename);
+
+ xbt_dynar_push(model_list, &surf_network_model);
+ lmm_set_default_protocol_function(func_vegas_f, func_vegas_fp,
+ func_vegas_fpi);
+ network_solve = lagrange_solve;
+
+ xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor", 10.4);
+ xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
+ 0.92);
+ xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 8775);
+
+ update_model_description(surf_network_model_description,
+ "Vegas", surf_network_model);
}