X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/936c8368c87c5a08ecc141096aca846cbc10a194..dfbc5d5fae985c21b9f6a36c729f9f87f098540b:/src/surf/network.c diff --git a/src/surf/network.c b/src/surf/network.c index c933aaef6a..a6512e801d 100644 --- a/src/surf/network.c +++ b/src/surf/network.c @@ -1,4 +1,12 @@ -/* Copyright (c) 2004, 2005, 2006, 2007, 2008, 2009, 2010. The SimGrid Team. + +/* + * Network with improved management of tasks, IM (Improved Management). + * Uses a heap to store actions so that the share_resources is faster. + * This model automatically sets the selective update flag to 1 and is + * highly dependent on the maxmin lmm module. + */ + +/* Copyright (c) 2009, 2010, 2011. The SimGrid Team. * All rights reserved. */ /* This program is free software; you can redistribute it and/or modify it @@ -8,6 +16,17 @@ #include "xbt/log.h" #include "xbt/str.h" +#include "surf_private.h" +#include "xbt/dict.h" +#include "maxmin_private.h" +#include "surf/surfxml_parse_values.h" +#include "surf/surf_resource.h" +#include "surf/surf_resource_lmm.h" + +#undef GENERIC_ACTION +#define GENERIC_ACTION(action) action->generic_action + + XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_network, surf, "Logging specific to the SURF network module"); @@ -15,17 +34,54 @@ surf_model_t surf_network_model = NULL; static lmm_system_t network_maxmin_system = NULL; static void (*network_solve) (lmm_system_t) = NULL; -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 */ +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 */ double sg_tcp_gamma = 0.0; -int sg_network_fullduplex = 0; +int sg_network_crosstraffic = 0; + +xbt_dict_t gap_lookup = NULL; + +e_UM_t network_update_mechanism = UM_UNDEFINED; +static int selective_update = 0; + +static int net_action_is_suspended(surf_action_t action); +static void update_action_remaining(double now); + +static xbt_swag_t net_modified_set = NULL; +static xbt_heap_t net_action_heap = NULL; +xbt_swag_t keep_track = NULL; + +/* added to manage the communication action's heap */ +static void net_action_update_index_heap(void *action, int i) +{ + ((surf_action_network_CM02_t) action)->index_heap = i; +} + +/* insert action on heap using a given key and a hat (heap_action_type) + * a hat can be of three types for communications: + * + * NORMAL = this is a normal heap entry stating the date to finish transmitting + * LATENCY = this is a heap entry to warn us when the latency is payed + * MAX_DURATION =this is a heap entry to warn us when the max_duration limit is reached + */ +static void heap_insert(surf_action_network_CM02_t action, double key, enum heap_action_type hat){ + action->hat = hat; + xbt_heap_push(net_action_heap, action, key); +} +static void heap_remove(surf_action_network_CM02_t action){ + action->hat = NONE; + if(((surf_action_network_CM02_t) action)->index_heap >= 0){ + xbt_heap_remove(net_action_heap,action->index_heap); + } +} /******************************************************************************/ /* Factors callbacks */ -/******************************************************************************/ +/******************************************************************************/ static double constant_latency_factor(double size) { return sg_latency_factor; @@ -36,11 +92,13 @@ static double constant_bandwidth_factor(double size) return sg_bandwidth_factor; } -static double constant_bandwidth_constraint(double rate, double bound, double size) +static double constant_bandwidth_constraint(double rate, double bound, + double size) { return rate; } + /**********************/ /* SMPI callbacks */ /**********************/ @@ -76,111 +134,99 @@ static double smpi_bandwidth_factor(double size) return 0.9359; } -static double smpi_bandwidth_constraint(double rate, double bound, double size) +static double smpi_bandwidth_constraint(double rate, double bound, + double size) { return rate < 0 ? bound : min(bound, rate * smpi_bandwidth_factor(size)); } - -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) +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 void (*gap_append) (double, const link_CM02_t, surf_action_network_CM02_t) = NULL; +static void (*gap_remove) (surf_action_network_CM02_t) = NULL; + +static void* net_create_resource(const 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) { 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); + 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_assert(!xbt_lib_get_or_null(link_lib, name, SURF_LINK_LEVEL), + "Link '%s' declared several times in the platform file.", + name); 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); + 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); -#ifdef HAVE_TRACING - TRACE_surf_link_declaration (nw_link, name, bw_initial, lat_initial); -#endif + xbt_lib_set(link_lib, name, SURF_LINK_LEVEL, nw_link); return nw_link; } -static void net_parse_link_init(void) -{ - char *name_link; - double bw_initial; - tmgr_trace_t bw_trace; - double lat_initial; - tmgr_trace_t lat_trace; - 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_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; - - state_trace = tmgr_trace_new(A_surfxml_link_state_file); - - net_link_new(name_link, bw_initial, bw_trace, - lat_initial, lat_trace, state_initial_link, state_trace, - policy_initial_link, xbt_dict_new()); - -} - -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) -{ - net_link_new(name, bw_initial, bw_trace, - lat_initial, lat_trace, state_initial, state_trace, - policy, xbt_dict_new()); +static void net_parse_link_init(sg_platf_link_cbarg_t link) +{ + if(link->policy == SURF_LINK_FULLDUPLEX){ + char *link_id; + link_id = bprintf("%s_UP", link->id); + net_create_resource(link_id, + link->bandwidth, + link->bandwidth_trace, + link->latency, + link->latency_trace, + link->state, + link->state_trace, + link->policy, + link->properties); + xbt_free(link_id); + link_id = bprintf("%s_DOWN", link->id); + net_create_resource(link_id, + link->bandwidth, + link->bandwidth_trace, + link->latency, + link->latency_trace, + link->state, + link->state_trace, + link->policy, + link->properties); + xbt_free(link_id); + } + else{ + net_create_resource(link->id, + link->bandwidth, + link->bandwidth_trace, + link->latency, + link->latency_trace, + link->state, + link->state_trace, + link->policy, + link->properties); + } } + static void net_add_traces(void) { xbt_dict_cursor_t cursor = NULL; @@ -195,56 +241,60 @@ static void net_add_traces(void) 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_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL); - xbt_assert2(link, "Cannot connect trace %s to link %s: link undefined", + xbt_assert(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", + xbt_assert(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); + tmgr_history_add_trace(history, trace, 0.0, 0, link); } 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); + xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL); - xbt_assert2(link, "Cannot connect trace %s to link %s: link undefined", + xbt_assert(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", + xbt_assert(trace, + "Cannot connect trace %s to link %s: trace undefined", trace_name, elm); link->lmm_resource.power.event = - tmgr_history_add_trace(history, trace, 0.0, 0, link); + tmgr_history_add_trace(history, trace, 0.0, 0, link); } 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); + xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL); - xbt_assert2(link, "Cannot connect trace %s to link %s: link undefined", + xbt_assert(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", + xbt_assert(trace, + "Cannot connect trace %s to link %s: trace undefined", trace_name, elm); link->lat_event = tmgr_history_add_trace(history, trace, 0.0, 0, link); } } -static void net_define_callbacks(const char *file) +static void net_define_callbacks(void) { /* 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); + sg_platf_link_add_cb(net_parse_link_init); + sg_platf_postparse_add_cb(net_add_traces); } static int net_resource_used(void *resource_id) { return lmm_constraint_used(network_maxmin_system, - ((surf_resource_lmm_t) resource_id)->constraint); + ((surf_resource_lmm_t) + resource_id)->constraint); } static int net_action_unref(surf_action_t action) @@ -252,23 +302,34 @@ static int net_action_unref(surf_action_t action) action->refcount--; if (!action->refcount) { xbt_swag_remove(action, action->state_set); - if (((surf_action_network_CM02_t) action)->variable) + if (((surf_action_network_CM02_t) action)->variable){ lmm_variable_free(network_maxmin_system, ((surf_action_network_CM02_t) action)->variable); + } + if(network_update_mechanism == UM_LAZY){// remove action from the heap + heap_remove((surf_action_network_CM02_t) action); + xbt_swag_remove(action, net_modified_set); + } #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); + xbt_free(((surf_action_network_CM02_t) action)->src_name); + xbt_free(((surf_action_network_CM02_t) action)->dst_name); + xbt_free(action->category); #endif - free(action); + surf_action_free(&action); return 1; } return 0; } + + static void net_action_cancel(surf_action_t action) { surf_network_model->action_state_set(action, SURF_ACTION_FAILED); + if(network_update_mechanism == UM_LAZY){// remove action from the heap + xbt_swag_remove(action, net_modified_set); + heap_remove((surf_action_network_CM02_t) action); + } } void net_action_recycle(surf_action_t action) @@ -277,7 +338,7 @@ void net_action_recycle(surf_action_t action) } #ifdef HAVE_LATENCY_BOUND_TRACKING -int net_get_link_latency_limited(surf_action_t action) +static int net_get_link_latency_limited(surf_action_t action) { return action->latency_limited; } @@ -285,48 +346,162 @@ int net_get_link_latency_limited(surf_action_t action) double net_action_get_remains(surf_action_t action) { + if(network_update_mechanism == UM_LAZY)/* update remains before return it */ + update_action_remaining(surf_get_clock()); return action->remains; } -static double net_share_resources(double now) +static void update_action_remaining(double now){ + surf_action_network_CM02_t action = NULL; + double delta = 0.0; + + xbt_swag_foreach(action, net_modified_set) { + + if(action->suspended != 0){ + continue; + } + + delta = now - action->last_update; + + double_update(&(action->generic_action.remains), + lmm_variable_getvalue(action->variable) * delta); + + 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); + heap_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); + heap_remove(action); + } + + action->last_update = now; + } +} + +static double net_share_resources_full(double now) { s_surf_action_network_CM02_t s_action; surf_action_network_CM02_t action = NULL; - xbt_swag_t running_actions = surf_network_model->states.running_action_set; + xbt_swag_t running_actions = + 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); + network_maxmin_system, + network_solve); #define VARIABLE(action) (*((lmm_variable_t*)(((char *) (action)) + xbt_swag_offset(s_action, variable) ))) xbt_swag_foreach(action, running_actions) { #ifdef HAVE_LATENCY_BOUND_TRACKING - if( lmm_is_variable_limited_by_latency(action->variable) ){ + if (lmm_is_variable_limited_by_latency(action->variable)) { (action->generic_action).latency_limited = 1; - }else{ + } 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; + min = (min<0)?action->latency:min(min,action->latency); } } + XBT_DEBUG("Min of share resources %f", min); + return min; } -static void net_update_actions_state(double now, double delta) +static double net_share_resources_lazy(double now) +{ + surf_action_network_CM02_t action = NULL; + double min=-1; + double value; + + XBT_DEBUG("Before share resources, the size of modified actions set is %d", xbt_swag_size(net_modified_set)); + update_action_remaining(now); + + keep_track = net_modified_set; + lmm_solve(network_maxmin_system); + keep_track = NULL; + + XBT_DEBUG("After share resources, The size of modified actions set is %d", xbt_swag_size(net_modified_set)); + + xbt_swag_foreach(action, net_modified_set) { + int max_dur_flag = 0; + + if (GENERIC_ACTION(action).state_set != surf_network_model->states.running_action_set){ + continue; + } + + /* bogus priority, skip it */ + if (GENERIC_ACTION(action).priority <= 0){ + continue; + } + + min = -1; + value = lmm_variable_getvalue(action->variable); + if (value > 0) { + if (GENERIC_ACTION(action).remains > 0) { + value = GENERIC_ACTION(action).remains / value; + min = now + value; + } else { + value = 0.0; + min = now; + } + } + + if ((GENERIC_ACTION(action).max_duration != NO_MAX_DURATION) + && (min == -1 + || GENERIC_ACTION(action).start + + GENERIC_ACTION(action).max_duration < min)){ + min = GENERIC_ACTION(action).start + + GENERIC_ACTION(action).max_duration; + max_dur_flag = 1; + } + + XBT_DEBUG("Action(%p) Start %lf Finish %lf Max_duration %lf", action, + GENERIC_ACTION(action).start, now + value, + GENERIC_ACTION(action).max_duration); + + if (action->index_heap >= 0) { + heap_remove((surf_action_network_CM02_t) action); + } + + if (min != -1) { + heap_insert((surf_action_network_CM02_t) action, min, max_dur_flag?MAX_DURATION:NORMAL); + XBT_DEBUG("Insert at heap action(%p) min %lf now %lf", action, min, now); + } + } + + //hereafter must have already the min value for this resource model + if(xbt_heap_size(net_action_heap) > 0 ){ + min = xbt_heap_maxkey(net_action_heap) - now ; + }else{ + min = -1; + } + + XBT_DEBUG("The minimum with the HEAP %lf", min); + + return min; +} + +static void net_update_actions_state_full(double now, double delta) { 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_model->states.running_action_set; + xbt_swag_t running_actions = + surf_network_model->states.running_action_set; /* xbt_swag_t failed_actions = surf_network_model->states.failed_action_set; @@ -347,14 +522,29 @@ static void net_update_actions_state(double now, double delta) 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, - action->generic_action.data, (surf_action_t)action, lmm_variable_getvalue(action->variable), now-delta, delta); + if (TRACE_is_enabled()) { + xbt_dynar_t route=NULL; + routing_get_route_and_latency(action->src_name, action->dst_name,&route,NULL); + 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) @@ -365,20 +555,54 @@ static void net_update_actions_state(double now, double delta) action->generic_action.finish = surf_get_clock(); surf_network_model->action_state_set((surf_action_t) action, SURF_ACTION_DONE); + + if(gap_remove) 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); + if(gap_remove) gap_remove(action); } } return; } +static void net_update_actions_state_lazy(double now, double delta) +{ + surf_action_network_CM02_t action = NULL; + + while ((xbt_heap_size(net_action_heap) > 0) + && (double_equals(xbt_heap_maxkey(net_action_heap), now))) { + action = xbt_heap_pop(net_action_heap); + XBT_DEBUG("Action %p: finish", action); + GENERIC_ACTION(action).finish = surf_get_clock(); + + // if I am wearing a latency heat + if( action->hat == LATENCY){ + lmm_update_variable_weight(network_maxmin_system, action->variable, + action->weight); + heap_remove(action); + action->last_update = surf_get_clock(); + + // if I am wearing a max_duration or normal hat + }else if( action->hat == MAX_DURATION || action->hat == NORMAL ){ + // no need to communicate anymore + // assume that flows that reached max_duration have remaining of 0 + GENERIC_ACTION(action).remains = 0; + action->generic_action.finish = surf_get_clock(); + surf_network_model->action_state_set((surf_action_t) action, + SURF_ACTION_DONE); + heap_remove(action); + } + } + return; +} + static void net_update_resource_state(void *id, - tmgr_trace_event_t event_type, - double value, double date) + tmgr_trace_event_t event_type, + double value, double date) { link_CM02_t nw_link = id; /* printf("[" "%lg" "] Asking to update network card \"%s\" with value " */ @@ -387,8 +611,9 @@ static void net_update_resource_state(void *id, 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); + 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; @@ -400,7 +625,10 @@ static void net_update_resource_state(void *id, (nw_link->lmm_resource.power.peak * nw_link->lmm_resource.power.scale)); #ifdef HAVE_TRACING - TRACE_surf_link_set_bandwidth (date, nw_link, sg_bandwidth_factor * (nw_link->lmm_resource.power.peak * nw_link->lmm_resource.power.scale)); + TRACE_surf_link_set_bandwidth(date, (char *)(((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 @@ -409,8 +637,8 @@ static void net_update_resource_state(void *id, action = lmm_variable_id(var); action->weight += delta; if (!(action->suspended)) - lmm_update_variable_weight(network_maxmin_system, action->variable, - action->weight); + lmm_update_variable_weight(network_maxmin_system, + action->variable, action->weight); } } if (tmgr_trace_event_free(event_type)) @@ -430,17 +658,19 @@ static void net_update_resource_state(void *id, 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{ + 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) ){ - INFO0("Flow is limited BYBANDWIDTH"); - }else{ - INFO1("Flow is limited BYLATENCY, latency of flow is %f",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)) @@ -473,42 +703,35 @@ static void net_update_resource_state(void *id, 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(); } + XBT_DEBUG("There were a resource state event, need to update actions related to the constraint (%p)", nw_link->lmm_resource.constraint); return; } -static surf_action_t net_communicate(const char *src_name, const char *dst_name, - double size, double rate) +static surf_action_t net_communicate(const char *src_name, + const char *dst_name, double size, + double rate) { unsigned int i; link_CM02_t link; int failed = 0; surf_action_network_CM02_t action = NULL; double bandwidth_bound; - /* 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 route = global_routing->get_route(src_name, dst_name); + double latency=0.0; xbt_dynar_t back_route = NULL; int constraints_per_variable = 0; - if( sg_network_fullduplex == 1){ - back_route = global_routing->get_route(src_name, dst_name); - } - - /* LARGE PLATFORMS HACK: - total_route_size = route_size + src->link_nb + dst->nb */ + xbt_dynar_t route=xbt_dynar_new(global_routing->size_of_link,NULL); - XBT_IN4("(%s,%s,%g,%g)", src_name, dst_name, size, rate); - /* LARGE PLATFORMS HACK: - assert on total_route_size */ - xbt_assert2(xbt_dynar_length(route), - "You're trying to send data from %s to %s but there is no connection between these two hosts.", + XBT_IN("(%s,%s,%g,%g)", src_name, dst_name, size, rate); + + routing_get_route_and_latency(src_name, dst_name, &route, &latency); + xbt_assert(!xbt_dynar_is_empty(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); xbt_dynar_foreach(route, i, link) { @@ -517,67 +740,86 @@ static surf_action_t net_communicate(const char *src_name, const char *dst_name, break; } } + if (sg_network_crosstraffic == 1) { + routing_get_route_and_latency(dst_name, src_name, &back_route,NULL); + xbt_dynar_foreach(back_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); + 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; + if(network_update_mechanism == UM_LAZY){ + action->index_heap = -1; + action->last_update = surf_get_clock(); + } - action->latency = 0.0; - action->weight = 0.0; bandwidth_bound = -1.0; + if(sg_weight_S_parameter>0) { + xbt_dynar_foreach(route, i, link) { + action->weight += + sg_weight_S_parameter / + (link->lmm_resource.power.peak * link->lmm_resource.power.scale); + } + } xbt_dynar_foreach(route, i, link) { - action->latency += link->lat_current; - action->weight += - link->lat_current + - 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); + double bb = bandwidth_factor_callback(size) * + (link->lmm_resource.power.peak * link->lmm_resource.power.scale); + bandwidth_bound = (bandwidth_bound < 0.0)?bb:min(bandwidth_bound,bb); + } - /* 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); + action->lat_current = action->latency; + action->latency *= latency_factor_callback(size); + action->rate = + bandwidth_constraint_callback(action->rate, bandwidth_bound, + size); + if(gap_append) { + xbt_assert(!xbt_dynar_is_empty(route),"Using a model with a gap (e.g., SMPI) with a platform without links (e.g. vivaldi)!!!"); + + 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); } - if (action->latency > 0) - action->variable = - lmm_variable_new(network_maxmin_system, action, 0.0, -1.0,constraints_per_variable); - else + constraints_per_variable = xbt_dynar_length(route); + if (back_route != NULL) + constraints_per_variable += xbt_dynar_length(back_route); + + if (action->latency > 0){ + action->variable = + lmm_variable_new(network_maxmin_system, action, 0.0, -1.0, + constraints_per_variable); + if(network_update_mechanism == UM_LAZY){ + // add to the heap the event when the latency is payed + XBT_DEBUG("Added action (%p) one latency event at date %f", action, action->latency + action->last_update); + heap_insert(action, action->latency + action->last_update, LATENCY); + } + } else action->variable = - lmm_variable_new(network_maxmin_system, action, 1.0, -1.0,constraints_per_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); + lmm_update_variable_bound(network_maxmin_system, action->variable, + (action->lat_current > 0)? + sg_tcp_gamma / (2.0 * action->lat_current) :-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); + lmm_update_variable_bound(network_maxmin_system, action->variable, + (action->lat_current > 0)? + min(action->rate, sg_tcp_gamma / (2.0 * action->lat_current)) + :action->rate); } xbt_dynar_foreach(route, i, link) { @@ -585,31 +827,34 @@ static surf_action_t net_communicate(const char *src_name, const char *dst_name, action->variable, 1.0); } - if( sg_network_fullduplex == 1){ - DEBUG1("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 */ + if (sg_network_crosstraffic == 1) { + XBT_DEBUG("Fullduplex active adding backward flow using 5%%"); + xbt_dynar_foreach(back_route, i, link) { + lmm_expand(network_maxmin_system, link->lmm_resource.constraint, + action->variable, .05); + } + } #ifdef HAVE_TRACING - action->src_name = xbt_new (char, strlen(src_name)+1); - strncpy (action->src_name, src_name, strlen(src_name)+1); - - action->dst_name = xbt_new (char, strlen(dst_name)+1); - strncpy (action->dst_name, dst_name, strlen(dst_name)+1); + if (TRACE_is_enabled()) { + action->src_name = xbt_strdup(src_name); + action->dst_name = xbt_strdup(dst_name); + } else { + action->src_name = action->dst_name = NULL; + } #endif - XBT_OUT; + xbt_dynar_free(&route); + XBT_OUT(); return (surf_action_t) action; } static xbt_dynar_t net_get_route(const char *src, const char *dst) { - return global_routing->get_route( src, dst); + xbt_dynar_t route=NULL; + routing_get_route_and_latency(src, dst,&route,NULL); + return route; } static double net_get_link_bandwidth(const void *link) @@ -620,20 +865,24 @@ static double net_get_link_bandwidth(const void *link) static double net_get_link_latency(const void *link) { - return ((link_CM02_t) link)->lat_current; + 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); + 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); + ((surf_action_network_CM02_t) + action)->variable, 0.0); + + if(network_update_mechanism == UM_LAZY)// remove action from the heap + heap_remove((surf_action_network_CM02_t) action); } static void net_action_resume(surf_action_t action) @@ -642,8 +891,11 @@ static void net_action_resume(surf_action_t action) 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)->weight); ((surf_action_network_CM02_t) action)->suspended = 0; + if(network_update_mechanism == UM_LAZY)// remove action from the heap + heap_remove((surf_action_network_CM02_t) action); } } @@ -655,21 +907,84 @@ static int net_action_is_suspended(surf_action_t action) void net_action_set_max_duration(surf_action_t action, double duration) { action->max_duration = duration; + if(network_update_mechanism == UM_LAZY)// remove action from the heap + heap_remove((surf_action_network_CM02_t) action); } +#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) { surf_model_exit(surf_network_model); surf_network_model = NULL; - - global_routing->finalize(); - + lmm_system_free(network_maxmin_system); network_maxmin_system = NULL; + + if(network_update_mechanism == UM_LAZY){ + xbt_heap_free(net_action_heap); + xbt_swag_free(net_modified_set); + } +} + +static void smpi_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 smpi_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_length(gap_lookup); + if(size == 0) { + xbt_dict_free(&gap_lookup); + } + } + } } static void surf_network_model_init_internal(void) { + s_surf_action_network_CM02_t comm; surf_network_model = surf_model_init(); surf_network_model->name = "network"; @@ -682,11 +997,16 @@ static void surf_network_model_init_internal(void) #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; + if(network_update_mechanism == UM_LAZY) { + surf_network_model->model_private->share_resources = net_share_resources_lazy; + surf_network_model->model_private->update_actions_state = net_update_actions_state_lazy; + } else if(network_update_mechanism == UM_FULL) { + surf_network_model->model_private->share_resources = net_share_resources_full; + surf_network_model->model_private->update_actions_state = net_update_actions_state_full; + } + surf_network_model->model_private->update_resource_state = - net_update_resource_state; + net_update_resource_state; surf_network_model->model_private->finalize = net_finalize; surf_network_model->suspend = net_action_suspend; @@ -697,66 +1017,114 @@ static void surf_network_model_init_internal(void) 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; + net_get_link_bandwidth; surf_network_model->extension.network.get_link_latency = - net_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)); + surf_network_model->extension.network.create_resource = + net_create_resource; + + if (!network_maxmin_system) + network_maxmin_system = lmm_system_new(selective_update); + + routing_model_create(sizeof(link_CM02_t), + net_create_resource("__loopback__", + 498000000, NULL, 0.000015, NULL, + SURF_RESOURCE_ON, NULL, + SURF_LINK_FATPIPE, NULL)); + + if(network_update_mechanism == UM_LAZY){ + net_action_heap = xbt_heap_new(8,NULL); + xbt_heap_set_update_callback(net_action_heap, net_action_update_index_heap); + net_modified_set = + xbt_swag_new(xbt_swag_offset(comm, action_list_hookup)); + } } - +static void set_update_mechanism(void) { + char *optim = xbt_cfg_get_string(_surf_cfg_set, "network/optim"); + int select = xbt_cfg_get_int(_surf_cfg_set, "network/maxmin_selective_update"); + + if(!strcmp(optim,"Full")) { + network_update_mechanism = UM_FULL; + selective_update = select; + } else if (!strcmp(optim,"Lazy")) { + network_update_mechanism = UM_LAZY; + selective_update = 1; + xbt_assert((select==1) || (xbt_cfg_is_default_value(_surf_cfg_set,"network/maxmin_selective_update")), + "Disabling selective update while using the lazy update mechanism is dumb!"); + } else { + xbt_die("Unsupported optimization (%s) for this model",optim); + } +} /************************************************************************/ /* New model based on LV08 and experimental results of MPI ping-pongs */ /************************************************************************/ -void surf_network_model_init_SMPI(const char *filename) +/* @Inproceedings{smpi_ipdps, */ +/* author={Pierre-Nicolas Clauss and Mark Stillwell and Stéphane Genaud and Frédéric Suter and Henri Casanova and Martin Quinson}, */ +/* title={Single Node On-Line Simulation of {MPI} Applications with SMPI}, */ +/* booktitle={25th IEEE International Parallel and Distributed Processing Symposium (IPDPS'11)}, */ +/* address={Anchorage (Alaska) USA}, */ +/* month=may, */ +/* year={2011} */ +/* } */ +void surf_network_model_init_SMPI(void) { if (surf_network_model) return; + set_update_mechanism(); + 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); + gap_append = &smpi_gap_append; + gap_remove = &smpi_gap_remove; + net_define_callbacks(); xbt_dynar_push(model_list, &surf_network_model); network_solve = lmm_solve; - xbt_cfg_setdefault_double(_surf_cfg_set,"network/weight_S", 8775); - - update_model_description(surf_network_model_description, - "SMPI", surf_network_model); + xbt_cfg_setdefault_double(_surf_cfg_set, "network/sender_gap", 10e-6); + xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 8775); } /************************************************************************/ -/* New model based on optimizations discussed during this thesis */ +/* New model based on optimizations discussed during Pedro Velho's thesis*/ /************************************************************************/ -void surf_network_model_init_LegrandVelho(const char *filename) +/* @techreport{VELHO:2011:HAL-00646896:1, */ +/* url = {http://hal.inria.fr/hal-00646896/en/}, */ +/* title = {{Flow-level network models: have we reached the limits?}}, */ +/* author = {Velho, Pedro and Schnorr, Lucas and Casanova, Henri and Legrand, Arnaud}, */ +/* type = {Rapport de recherche}, */ +/* institution = {INRIA}, */ +/* number = {RR-7821}, */ +/* year = {2011}, */ +/* month = Nov, */ +/* pdf = {http://hal.inria.fr/hal-00646896/PDF/rr-validity.pdf}, */ +/* } */ +void surf_network_model_init_LegrandVelho(void) { + char *model = xbt_cfg_get_string(_surf_cfg_set, "network/model"); if (surf_network_model) return; + + if(!strcmp(model,"LV08_fullupdate")) { + XBT_WARN("[*Deprecated*. Use --cfg=network/model:LV08 with option --cfg=network/optim:Full instead.]"); + } + set_update_mechanism(); + surf_network_model_init_internal(); - net_define_callbacks(filename); + net_define_callbacks(); xbt_dynar_push(model_list, &surf_network_model); network_solve = lmm_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, - "LV08", surf_network_model); + xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor", 10.4); // 13.01 when callibration is done without phase effects + xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",0.92);// 0.97 when callibration is done without phase effects + xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 8775); // 20537 when callibration is done without phase effects } /***************************************************************************/ @@ -770,78 +1138,91 @@ void surf_network_model_init_LegrandVelho(const char *filename) /* month = {oct}, */ /* year = {2002} */ /* } */ -void surf_network_model_init_CM02(const char *filename) +void surf_network_model_init_CM02(void) { if (surf_network_model) return; + + set_update_mechanism(); surf_network_model_init_internal(); - net_define_callbacks(filename); + net_define_callbacks(); xbt_dynar_push(model_list, &surf_network_model); network_solve = lmm_solve; - update_model_description(surf_network_model_description, - "CM02", surf_network_model); + xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor", 1.0); + xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor", 1.0); + xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 0.0); } -void surf_network_model_init_Reno(const char *filename) +/***************************************************************************/ +/* The models from Steven H. Low */ +/***************************************************************************/ +/* @article{Low03, */ +/* author={Steven H. Low}, */ +/* title={A Duality Model of {TCP} and Queue Management Algorithms}, */ +/* year={2003}, */ +/* journal={{IEEE/ACM} Transactions on Networking}, */ +/* volume={11}, number={4}, */ +/* } */ +void surf_network_model_init_Reno(void) { if (surf_network_model) return; + + set_update_mechanism(); surf_network_model_init_internal(); - net_define_callbacks(filename); + net_define_callbacks(); xbt_dynar_push(model_list, &surf_network_model); - lmm_set_default_protocol_function(func_reno_f, func_reno_fp, func_reno_fpi); + 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); + 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); } -void surf_network_model_init_Reno2(const char *filename) +void surf_network_model_init_Reno2(void) { if (surf_network_model) return; + + set_update_mechanism(); surf_network_model_init_internal(); - net_define_callbacks(filename); + net_define_callbacks(); 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); + 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); } -void surf_network_model_init_Vegas(const char *filename) +void surf_network_model_init_Vegas(void) { if (surf_network_model) return; + + set_update_mechanism(); surf_network_model_init_internal(); - net_define_callbacks(filename); + net_define_callbacks(); 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); + 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); } - -