X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/2728e49797bd42f623228fe493854ceaaefd7082..973f33d7adc7e95c773f7a9e73f281503385f69b:/src/surf/network.c diff --git a/src/surf/network.c b/src/surf/network.c index dc854770e7..c8649e155e 100644 --- a/src/surf/network.c +++ b/src/surf/network.c @@ -1,161 +1,1005 @@ -/* 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(surf_network, surf, + "Logging specific to the SURF network module"); + +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_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; + +xbt_dict_t gap_lookup = NULL; + +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; + } +} -XBT_LOG_NEW_DEFAULT_SUBCATEGORY(network, surf ,"Logging specific to the SURF network module"); +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; +} -surf_network_resource_t surf_network_resource = NULL; +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); + } + } + } +} -static xbt_dict_t network_set = NULL; +/******************************************************************************/ +/* Factors callbacks */ +/******************************************************************************/ +static double constant_latency_factor(double size) +{ + return sg_latency_factor; +} +static double constant_bandwidth_factor(double size) +{ + return sg_bandwidth_factor; +} -static void *route_new(const char *src, const char* dst) +static double constant_bandwidth_constraint(double rate, double bound, + double size) { - return NULL; + return rate; } -/* - Semantic: name scale initial power initial state - power trace state trace - - Token: TOKEN_WORD TOKEN_WORD TOKEN_WORD TOKEN_WORD TOKEN_WORD TOKEN_WORD - Type: string float float string ON/OFF string -*/ +/**********************/ +/* SMPI callbacks */ +/**********************/ +static double smpi_latency_factor(double size) +{ + /* 1 B <= size <= 1 KiB */ + if (size <= 1024.0) { + return 1.0056; + } + + /* 2 KiB <= size <= 32 KiB */ + if (size <= 32768.0) { + return 1.8805; + } -static void parse_route(void) + /* 64 KiB <= size <= 4 MiB */ + return 22.7111; +} + +static double smpi_bandwidth_factor(double size) { - route_new(NULL,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; + } + + /* 64 KiB <= size <= 4 MiB */ + return 0.9359; } -static void parse_file(const char *file) +static double smpi_bandwidth_constraint(double rate, double bound, + double size) { - e_surf_token_t token; + return rate < 0 ? bound : min(bound, rate * smpi_bandwidth_factor(size)); +} - find_section(file,"NETWORK"); - while(1) { - token=surf_parse(); +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) +{ + 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_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); + + if (policy == SURF_LINK_FATPIPE) + lmm_constraint_shared(nw_link->lmm_resource.constraint); + + xbt_lib_set(link_lib, name, SURF_LINK_LEVEL, nw_link); + + return nw_link; +} - if(token==TOKEN_END_SECTION) break; - if(token==TOKEN_NEWLINE) continue; - - if(token==TOKEN_WORD) parse_route(); - else {CRITICAL1("Parse error line %d\n",line_pos);xbt_abort();} +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; + 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_assert((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()); + } + 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()); } - close_section("NETWORK"); } -static void *name_service(const char *name) +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) { - return NULL; + net_link_new(name, bw_initial, bw_trace, + lat_initial, lat_trace, state_initial, state_trace, + policy, xbt_dict_new()); } -static const char *get_resource_name(void *resource_id) +static void net_add_traces(void) { - return NULL; + 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_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL); + + xbt_assert(link, "Cannot connect trace %s to link %s: link undefined", + trace_name, elm); + 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); + } + + 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_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL); + + xbt_assert(link, "Cannot connect trace %s to link %s: link undefined", + trace_name, elm); + 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); + } + + 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_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL); + + xbt_assert(link, "Cannot connect trace %s to link %s: link undefined", + trace_name, elm); + 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) +{ + /* 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 int net_resource_used(void *resource_id) +{ + 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) { + 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) { - 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) { - return; + return action->remains; } -static xbt_heap_float_t share_resources(xbt_heap_float_t now) +static double net_share_resources(double now) { - return -1.0; + 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; + double min; + + min = generic_maxmin_share_resources(running_actions, + xbt_swag_offset(s_action, + variable), + 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)) { + (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) { + 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 failed_actions = + surf_network_model->states.failed_action_set; + */ + + xbt_swag_foreach_safe(action, next_action, running_actions) { + 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 + if (TRACE_is_enabled()) { + 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); + } + } + 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) { + 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; + 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->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 { + 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) { - return NULL; + 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; + xbt_dynar_t route; + // I will need this route for some time so require for no cleanup + global_routing->get_route_latency(src_name, dst_name, &route, &latency, 0); + + if (sg_network_fullduplex == 1) { + back_route = global_routing->get_route(dst_name, src_name); + } + + /* LARGE PLATFORMS HACK: + total_route_size = route_size + src->link_nb + dst->nb */ + + XBT_IN("(%s,%s,%g,%g)", src_name, dst_name, size, rate); + /* LARGE PLATFORMS HACK: + assert on total_route_size */ + xbt_assert(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); + + 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); + } + + 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 + 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_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); +} + +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 void finalize(void) +static int net_action_is_suspended(surf_action_t action) { + return ((surf_action_network_CM02_t) action)->suspended; } -static void surf_network_resource_init_internal(void) +void net_action_set_max_duration(surf_action_t action, double duration) { - s_surf_action_t action; + 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) +{ + surf_model_exit(surf_network_model); + surf_network_model = NULL; + + global_routing->finalize(); + + lmm_system_free(network_maxmin_system); + network_maxmin_system = NULL; +} + +static void surf_network_model_init_internal(void) +{ + 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) +{ + + 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); +} + +/************************************************************************/ +/* New model based on optimizations discussed during this thesis */ +/************************************************************************/ +void surf_network_model_init_LegrandVelho(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; + + 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); - 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)); + update_model_description(surf_network_model_description, + "LV08", 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->resource_used = resource_used; - 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; +/***************************************************************************/ +/* 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) +{ - 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; + 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); +} - network_set = xbt_dict_new(); - xbt_assert0(maxmin_system,"surf_init has to be called first!"); +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); }