-/* $Id$ */
-/* Copyright (c) 2004 Arnaud Legrand. All rights reserved. */
+/*
+ * 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
* under the terms of the license (GNU LGPL) which comes with this package. */
#include "network_private.h"
+#include "xbt/log.h"
+#include "xbt/str.h"
-#define SG_TCP_CTE_GAMMA 20000.0
-
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(network, surf,
- "Logging specific to the SURF network module");
-
-surf_network_resource_t surf_network_resource = NULL;
+#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"
-static xbt_dict_t network_link_set = NULL;
-xbt_dict_t network_card_set = NULL;
+#undef GENERIC_LMM_ACTION
+#undef GENERIC_ACTION
+#define GENERIC_LMM_ACTION(action) (action)->generic_lmm_action
+#define GENERIC_ACTION(action) GENERIC_LMM_ACTION(action).generic_action
-int card_number = 0;
-network_link_CM02_t **routing_table = NULL;
-int *routing_table_size = NULL;
-static network_link_CM02_t loopback = NULL;
-static void create_routing_table(void)
-{
- routing_table = xbt_new0(network_link_CM02_t *, card_number * card_number);
- routing_table_size = xbt_new0(int, card_number * card_number);
-}
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_network, surf,
+ "Logging specific to the SURF network module");
-static void network_link_free(void *nw_link)
-{
- free(((network_link_CM02_t)nw_link)->name);
- free(nw_link);
-}
+surf_model_t surf_network_model = NULL;
+static void (*network_solve) (lmm_system_t) = NULL;
-static network_link_CM02_t network_link_new(char *name,
- double bw_initial,
- tmgr_trace_t bw_trace,
- double lat_initial,
- tmgr_trace_t lat_trace,
- e_surf_network_link_state_t
- state_initial,
- tmgr_trace_t state_trace,
- e_surf_network_link_sharing_policy_t policy)
-{
- network_link_CM02_t nw_link = xbt_new0(s_network_link_CM02_t, 1);
+xbt_dynar_t smpi_bw_factor = NULL;
+xbt_dynar_t smpi_lat_factor = NULL;
+typedef struct s_smpi_factor *smpi_factor_t;
+typedef struct s_smpi_factor {
+ long factor;
+ double value;
+} s_smpi_factor_t;
- 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);
- nw_link->constraint =
- lmm_constraint_new(maxmin_system, nw_link, nw_link->bw_current);
+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 */
- if(policy == SURF_NETWORK_LINK_FATPIPE)
- lmm_constraint_shared(nw_link->constraint);
+double sg_tcp_gamma = 0.0;
+int sg_network_crosstraffic = 0;
- xbt_dict_set(network_link_set, name, nw_link, network_link_free);
+xbt_dict_t gap_lookup = NULL;
- return nw_link;
+/******************************************************************************/
+/* Factors callbacks */
+/******************************************************************************/
+static double constant_latency_factor(double size)
+{
+ return sg_latency_factor;
}
-static void network_card_free(void *nw_card)
+static double constant_bandwidth_factor(double size)
{
- free(((network_card_CM02_t)nw_card)->name);
- free(nw_card);
+ return sg_bandwidth_factor;
}
-static int network_card_new(const char *card_name)
+static double constant_bandwidth_constraint(double rate, double bound,
+ double size)
{
- network_card_CM02_t card = NULL;
+ return rate;
+}
- xbt_dict_get(network_card_set, card_name, (void *) &card);
+/**********************/
+/* SMPI callbacks */
+/**********************/
- if (!card) {
- card = xbt_new0(s_network_card_CM02_t, 1);
- card->name = xbt_strdup(card_name);
- card->id = card_number++;
- xbt_dict_set(network_card_set, card_name, card, network_card_free);
- }
- return card->id;
+static int factor_cmp(const void *pa, const void *pb)
+{
+ return (((s_smpi_factor_t*)pa)->factor > ((s_smpi_factor_t*)pb)->factor);
}
-static void route_new(int src_id, int dst_id, char **links, int nb_link)
+
+static xbt_dynar_t parse_factor(const char *smpi_coef_string)
{
- network_link_CM02_t *link_list = NULL;
- int i;
+ char *value = NULL;
+ unsigned int iter = 0;
+ s_smpi_factor_t fact;
+ xbt_dynar_t smpi_factor, radical_elements, radical_elements2 = NULL;
+
+ smpi_factor = xbt_dynar_new(sizeof(s_smpi_factor_t), NULL);
+ radical_elements = xbt_str_split(smpi_coef_string, ";");
+ xbt_dynar_foreach(radical_elements, iter, value) {
+
+ radical_elements2 = xbt_str_split(value, ":");
+ if (xbt_dynar_length(radical_elements2) != 2)
+ xbt_die("Malformed radical for smpi factor!");
+ fact.factor = atol(xbt_dynar_get_as(radical_elements2, 0, char *));
+ fact.value = atof(xbt_dynar_get_as(radical_elements2, 1, char *));
+ xbt_dynar_push_as(smpi_factor, s_smpi_factor_t, fact);
+ XBT_DEBUG("smpi_factor:\t%ld : %f", fact.factor, fact.value);
+ xbt_dynar_free(&radical_elements2);
+ }
+ xbt_dynar_free(&radical_elements);
+ iter=0;
+ xbt_dynar_sort(smpi_factor, &factor_cmp);
+ xbt_dynar_foreach(smpi_factor, iter, fact) {
+ XBT_DEBUG("ordered smpi_factor:\t%ld : %f", fact.factor, fact.value);
- ROUTE_SIZE(src_id, dst_id) = nb_link;
- link_list = (ROUTE(src_id, dst_id) = xbt_new0(network_link_CM02_t, nb_link));
- for (i = 0; i < nb_link; i++) {
- xbt_dict_get(network_link_set, links[i], (void *) &(link_list[i]));
- free(links[i]);
}
- free(links);
+ return smpi_factor;
}
-static void parse_network_link(void)
+static double smpi_bandwidth_factor(double size)
{
- char *name;
- double bw_initial;
- tmgr_trace_t bw_trace;
- double lat_initial;
- tmgr_trace_t lat_trace;
- e_surf_network_link_state_t state_initial = SURF_NETWORK_LINK_ON;
- e_surf_network_link_sharing_policy_t policy_initial = SURF_NETWORK_LINK_SHARED;
- tmgr_trace_t state_trace;
-
- name = xbt_strdup(A_network_link_name);
- surf_parse_get_double(&bw_initial,A_network_link_bandwidth);
- surf_parse_get_trace(&bw_trace, A_network_link_bandwidth_file);
- surf_parse_get_double(&lat_initial,A_network_link_latency);
- surf_parse_get_trace(&lat_trace, A_network_link_latency_file);
-
- xbt_assert0((A_network_link_state==A_network_link_state_ON)||
- (A_network_link_state==A_network_link_state_OFF),
- "Invalid state")
- if (A_network_link_state==A_network_link_state_ON)
- state_initial = SURF_NETWORK_LINK_ON;
- else if (A_network_link_state==A_network_link_state_OFF)
- state_initial = SURF_NETWORK_LINK_OFF;
+ if (!smpi_bw_factor)
+ smpi_bw_factor =
+ parse_factor(xbt_cfg_get_string(_surf_cfg_set, "smpi/bw_factor"));
+
+ unsigned int iter = 0;
+ s_smpi_factor_t fact;
+ xbt_dynar_foreach(smpi_bw_factor, iter, fact) {
+ if (size >= fact.factor) {
+ XBT_DEBUG("%lf >= %ld return %f", size, fact.factor, fact.value);
+ return fact.value;
+ }
+ }
- if (A_network_link_sharing_policy==A_network_link_sharing_policy_SHARED)
- policy_initial = SURF_NETWORK_LINK_SHARED;
- else if (A_network_link_sharing_policy==A_network_link_sharing_policy_FATPIPE)
- policy_initial = SURF_NETWORK_LINK_FATPIPE;
+ return 1.0;
+}
- surf_parse_get_trace(&state_trace,A_network_link_state_file);
+static double smpi_latency_factor(double size)
+{
+ if (!smpi_lat_factor)
+ smpi_lat_factor =
+ parse_factor(xbt_cfg_get_string(_surf_cfg_set, "smpi/lat_factor"));
+
+ unsigned int iter = 0;
+ s_smpi_factor_t fact;
+ xbt_dynar_foreach(smpi_lat_factor, iter, fact) {
+ if (size >= fact.factor) {
+ XBT_DEBUG("%lf >= %ld return %f", size, fact.factor, fact.value);
+ return fact.value;
+ }
+ }
- network_link_new(name, bw_initial, bw_trace,
- lat_initial, lat_trace, state_initial, state_trace,
- policy_initial);
+ return 1.0;
}
-static int nb_link = 0;
-static char **link_name = NULL;
-static int src_id = -1;
-static int dst_id = -1;
+/**--------- <copy/paste C code snippet in surf/network.c> -----------*/
-static void parse_route_set_endpoints(void)
+static double smpi_bandwidth_constraint(double rate, double bound,
+ double size)
{
- src_id = network_card_new(A_route_src);
- dst_id = network_card_new(A_route_dst);
- nb_link = 0;
- link_name = NULL;
+ return rate < 0 ? bound : min(bound, rate * smpi_bandwidth_factor(size));
}
-static void parse_route_elem(void)
+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 *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)
{
- nb_link++;
- link_name = xbt_realloc(link_name, (nb_link) * sizeof(char *));
- link_name[(nb_link) - 1] = xbt_strdup(A_route_element_name);
+ link_CM02_t nw_link = (link_CM02_t)
+ surf_resource_lmm_new(sizeof(s_link_CM02_t),
+ surf_network_model, name, properties,
+ surf_network_model->model_private->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);
+ XBT_DEBUG("Create link '%s'",name);
+
+ return nw_link;
}
-static void parse_route_set_route(void)
+static void net_parse_link_init(sg_platf_link_cbarg_t link)
{
- route_new(src_id, dst_id, link_name, nb_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 parse_file(const char *file)
+static void net_add_traces(void)
{
- int i;
+ xbt_dict_cursor_t cursor = NULL;
+ char *trace_name, *elm;
- /* Figuring out the network links */
- surf_parse_reset_parser();
- ETag_network_link_fun=parse_network_link;
- surf_parse_open(file);
- xbt_assert1((!surf_parse()),"Parse error in %s",file);
- surf_parse_close();
-
- /* Figuring out the network cards used */
- surf_parse_reset_parser();
- STag_route_fun=parse_route_set_endpoints;
- surf_parse_open(file);
- xbt_assert1((!surf_parse()),"Parse error in %s",file);
- surf_parse_close();
-
- create_routing_table();
-
- /* Building the routes */
- surf_parse_reset_parser();
- STag_route_fun=parse_route_set_endpoints;
- ETag_route_element_fun=parse_route_elem;
- ETag_route_fun=parse_route_set_route;
- surf_parse_open(file);
- xbt_assert1((!surf_parse()),"Parse error in %s",file);
- surf_parse_close();
-
- /* Adding loopback if needed */
-
- for (i = 0; i < card_number; i++)
- if(!ROUTE_SIZE(i,i)) {
- if(!loopback)
- loopback = network_link_new(xbt_strdup("__MSG_loopback__"),
- 498.00, NULL, 0.000015, NULL,
- SURF_NETWORK_LINK_ON, NULL,
- SURF_NETWORK_LINK_FATPIPE);
- ROUTE_SIZE(i,i)=1;
- ROUTE(i,i) = xbt_new0(network_link_CM02_t, 1);
- ROUTE(i,i)[0] = loopback;
- }
-}
+ static int called = 0;
+ if (called)
+ return;
+ called = 1;
-static void *name_service(const char *name)
-{
- network_card_CM02_t card = NULL;
+ /* 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_dict_get(network_card_set, name, (void *) &card);
+ 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);
- return card;
-}
+ link->lmm_resource.state_event =
+ tmgr_history_add_trace(history, trace, 0.0, 0, link);
+ }
-static const char *get_resource_name(void *resource_id)
-{
- return ((network_card_CM02_t) resource_id)->name;
-}
+ 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);
-static int resource_used(void *resource_id)
-{
- return lmm_constraint_used(maxmin_system,
- ((network_link_CM02_t) resource_id)->constraint);
-}
+ 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);
-static int action_free(surf_action_t action)
-{
- action->using--;
- if(!action->using) {
- xbt_swag_remove(action, action->state_set);
- if(((surf_action_network_CM02_t)action)->variable)
- lmm_variable_free(maxmin_system, ((surf_action_network_CM02_t)action)->variable);
- free(action);
- return 1;
+ 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);
}
- return 0;
}
-static void action_use(surf_action_t action)
+static void net_define_callbacks(void)
{
- action->using++;
+ /* Figuring out the network links */
+ sg_platf_link_add_cb(net_parse_link_init);
+ sg_platf_postparse_add_cb(net_add_traces);
}
-static void action_cancel(surf_action_t action)
+static int net_resource_used(void *resource_id)
{
- return;
+ return lmm_constraint_used(surf_network_model->model_private->maxmin_system, ((surf_resource_lmm_t)
+ resource_id)->
+ constraint);
}
-static void action_recycle(surf_action_t action)
+void net_action_recycle(surf_action_t action)
{
return;
}
-static void action_change_state(surf_action_t action,
- e_surf_action_state_t state)
+#ifdef HAVE_LATENCY_BOUND_TRACKING
+int net_get_link_latency_limited(surf_action_t action)
{
-/* if((state==SURF_ACTION_DONE) || (state==SURF_ACTION_FAILED)) */
-/* if(((surf_action_network_CM02_t)action)->variable) { */
-/* lmm_variable_disable(maxmin_system, ((surf_action_network_CM02_t)action)->variable); */
-/* ((surf_action_network_CM02_t)action)->variable = NULL; */
-/* } */
-
- surf_action_change_state(action, state);
- return;
+ return action->latency_limited;
}
+#endif
-static double share_resources(double now)
+static double net_share_resources_full(double now)
{
- s_surf_action_network_CM02_t s_action;
+ s_surf_action_lmm_t s_action;
surf_action_network_CM02_t action = NULL;
- xbt_swag_t running_actions = surf_network_resource->common_public->states.running_action_set;
- double min = generic_maxmin_share_resources(running_actions,
- xbt_swag_offset(s_action, variable));
+ 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),
+ surf_network_model->model_private->maxmin_system,
+ network_solve);
+
+#define VARIABLE(action) (*((lmm_variable_t*)(((char *) (action)) + xbt_swag_offset(s_action, variable) )))
xbt_swag_foreach(action, running_actions) {
- if(action->latency>0) {
- if(min<0) min = action->latency;
- else if (action->latency<min) min = action->latency;
+#ifdef HAVE_LATENCY_BOUND_TRACKING
+ if (lmm_is_variable_limited_by_latency(GENERIC_LMM_ACTION(action).variable)) {
+ action->latency_limited = 1;
+ } else {
+ action->latency_limited = 0;
+ }
+#endif
+ if (action->latency > 0) {
+ min = (min < 0) ? action->latency : min(min, action->latency);
}
}
+ XBT_DEBUG("Min of share resources %f", min);
+
return min;
}
-static void update_actions_state(double now, double delta)
+static double net_share_resources_lazy(double now)
{
- 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;
+ return generic_share_resources_lazy(now, surf_network_model);
+}
- xbt_swag_foreach_safe(action, next_action, running_actions) {
- deltap = delta;
- if (action->latency > 0) {
- if (action->latency > deltap) {
- surf_double_update(&(action->latency),deltap);
- deltap = 0.0;
- } else {
- surf_double_update(&(deltap), action->latency);
- action->latency = 0.0;
- }
- if ((action->latency == 0.0) && !(action->suspended))
- lmm_update_variable_weight(maxmin_system, action->variable, 1.0);
- }
- surf_double_update(&(action->generic_action.remains),
- lmm_variable_getvalue(action->variable) * deltap);
- if (action->generic_action.max_duration != NO_MAX_DURATION)
- surf_double_update(&(action->generic_action.max_duration), delta);
-
- /* if(action->generic_action.remains<.00001) action->generic_action.remains=0; */
-
- if (action->generic_action.remains <= 0) {
- action->generic_action.finish = surf_get_clock();
- action_change_state((surf_action_t) action, SURF_ACTION_DONE);
- } else if ((action->generic_action.max_duration != NO_MAX_DURATION) &&
- (action->generic_action.max_duration <= 0)) {
- action->generic_action.finish = surf_get_clock();
- 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_CM02_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->generic_action.finish = surf_get_clock();
- action_change_state((surf_action_t) action, SURF_ACTION_FAILED);
- break;
- }
- }
- }
- }
+static void net_update_actions_state_full(double now, double delta)
+{
+ generic_update_actions_state_full(now, delta, surf_network_model);
+}
- return;
+static void net_update_actions_state_lazy(double now, double delta)
+{
+ generic_update_actions_state_lazy(now, delta, surf_network_model);
}
-static void update_resource_state(void *id,
- tmgr_trace_event_t event_type,
- double value)
+static void net_update_resource_state(void *id,
+ tmgr_trace_event_t event_type,
+ double value, double date)
{
- network_link_CM02_t nw_link = id;
+ 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); */
+ /* "%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;
- 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);
+ nw_link->lmm_resource.power.peak = value;
+ lmm_update_constraint_bound(surf_network_model->model_private->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,
+ (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
+ (surf_network_model->model_private->maxmin_system, nw_link->lmm_resource.constraint,
+ &elem))) {
+ action = lmm_variable_id(var);
+ action->weight += delta;
+ if (!(GENERIC_LMM_ACTION(action).suspended))
+ lmm_update_variable_weight(surf_network_model->model_private->maxmin_system,
+ GENERIC_LMM_ACTION(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 (lmm_get_var_from_cnst(maxmin_system, nw_link->constraint, &var)) {
+ while ((var = lmm_get_var_from_cnst
+ (surf_network_model->model_private->maxmin_system, nw_link->lmm_resource.constraint,
+ &elem))) {
action = lmm_variable_id(var);
action->lat_current += delta;
- if(action->rate<0)
- lmm_update_variable_bound(maxmin_system, action->variable,
- SG_TCP_CTE_GAMMA / action->lat_current);
- else
- lmm_update_variable_bound(maxmin_system, action->variable,
- min(action->rate,SG_TCP_CTE_GAMMA / action->lat_current));
+ action->weight += delta;
+ if (action->rate < 0)
+ lmm_update_variable_bound(surf_network_model->model_private->maxmin_system, GENERIC_LMM_ACTION(action).variable,
+ sg_tcp_gamma / (2.0 *
+ action->lat_current));
+ else {
+ lmm_update_variable_bound(surf_network_model->model_private->maxmin_system, GENERIC_LMM_ACTION(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 (!(GENERIC_LMM_ACTION(action).suspended))
+ lmm_update_variable_weight(surf_network_model->model_private->maxmin_system, GENERIC_LMM_ACTION(action).variable,
+ action->weight);
+
}
- } else if (event_type == nw_link->state_event) {
+ 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
+ (surf_network_model->model_private->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();
}
+ 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 communicate(void *src, void *dst, double size, double rate)
+
+static surf_action_t net_communicate(sg_routing_edge_t src,
+ sg_routing_edge_t dst,
+ double size, double rate)
{
+ unsigned int i;
+ link_CM02_t link;
+ int failed = 0;
surf_action_network_CM02_t action = NULL;
- network_card_CM02_t card_src = src;
- network_card_CM02_t card_dst = dst;
- int route_size = ROUTE_SIZE(card_src->id, card_dst->id);
- network_link_CM02_t *route = ROUTE(card_src->id, card_dst->id);
- int i;
-
- action = xbt_new0(s_surf_action_network_CM02_t, 1);
-
- action->generic_action.using = 1;
- action->generic_action.cost = size;
- action->generic_action.remains = size;
- action->generic_action.max_duration = NO_MAX_DURATION;
- action->generic_action.start = -1.0;
- action->generic_action.finish = -1.0;
- action->generic_action.resource_type =
- (surf_resource_t) surf_network_resource;
- action->suspended = 0; /* Should be useless because of the
- calloc but it seems to help valgrind... */
- action->generic_action.state_set =
- surf_network_resource->common_public->states.running_action_set;
-
- xbt_swag_insert(action, action->generic_action.state_set);
+ double bandwidth_bound;
+ double latency = 0.0;
+ xbt_dynar_t back_route = NULL;
+ int constraints_per_variable = 0;
+
+ xbt_dynar_t route = xbt_dynar_new(sizeof(sg_routing_link_t), NULL);
+
+ XBT_IN("(%s,%s,%g,%g)", src->name, dst->name, size, rate);
+
+ routing_get_route_and_latency(src, dst, &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) {
+ if (link->lmm_resource.state_current == SURF_RESOURCE_OFF) {
+ failed = 1;
+ break;
+ }
+ }
+ if (sg_network_crosstraffic == 1) {
+ routing_get_route_and_latency(dst, src, &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);
+#ifdef HAVE_LATENCY_BOUND_TRACKING
+ action->latency_limited = 0;
+#endif
+ action->weight = action->latency = latency;
+
+ xbt_swag_insert(action, ((surf_action_t)action)->state_set);
action->rate = rate;
+ if (surf_network_model->model_private->update_mechanism == UM_LAZY) {
+ GENERIC_LMM_ACTION(action).index_heap = -1;
+ GENERIC_LMM_ACTION(action).last_update = surf_get_clock();
+ }
+
+ 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) {
+ 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);
+ }
- action->latency = 0.0;
- for (i = 0; i < route_size; i++)
- action->latency += route[i]->lat_current;
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(maxmin_system, action, 0.0, -1.0,
- route_size);
- else
- action->variable = lmm_variable_new(maxmin_system, action, 1.0, -1.0,
- route_size);
-
- if(action->rate<0) {
- if(action->lat_current>0)
- lmm_update_variable_bound(maxmin_system, action->variable,
- SG_TCP_CTE_GAMMA / action->lat_current);
- else
- lmm_update_variable_bound(maxmin_system, action->variable, -1.0);
+ constraints_per_variable = xbt_dynar_length(route);
+ if (back_route != NULL)
+ constraints_per_variable += xbt_dynar_length(back_route);
+
+ if (action->latency > 0) {
+ GENERIC_LMM_ACTION(action).variable =
+ lmm_variable_new(surf_network_model->model_private->maxmin_system, action, 0.0, -1.0,
+ constraints_per_variable);
+ if (surf_network_model->model_private->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 + GENERIC_LMM_ACTION(action).last_update);
+ surf_action_lmm_heap_insert(surf_network_model->model_private->action_heap,(surf_action_lmm_t)action, action->latency + GENERIC_LMM_ACTION(action).last_update,
+ xbt_dynar_is_empty(route) ? NORMAL : LATENCY);
+ }
+ } else
+ GENERIC_LMM_ACTION(action).variable =
+ lmm_variable_new(surf_network_model->model_private->maxmin_system, action, 1.0, -1.0,
+ constraints_per_variable);
+
+ if (action->rate < 0) {
+ lmm_update_variable_bound(surf_network_model->model_private->maxmin_system, GENERIC_LMM_ACTION(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(maxmin_system, action->variable,
- min(action->rate,SG_TCP_CTE_GAMMA / action->lat_current));
- else
- lmm_update_variable_bound(maxmin_system, action->variable, action->rate);
+ lmm_update_variable_bound(surf_network_model->model_private->maxmin_system, GENERIC_LMM_ACTION(action).variable,
+ (action->lat_current > 0) ?
+ min(action->rate,
+ sg_tcp_gamma / (2.0 *
+ action->lat_current))
+ : action->rate);
}
- for (i = 0; i < route_size; i++)
- lmm_expand(maxmin_system, route[i]->constraint, action->variable, 1.0);
+ xbt_dynar_foreach(route, i, link) {
+ lmm_expand(surf_network_model->model_private->maxmin_system, link->lmm_resource.constraint,
+ GENERIC_LMM_ACTION(action).variable, 1.0);
+ }
- if(route_size == 0) {
- action_change_state((surf_action_t) action, SURF_ACTION_DONE);
+ if (sg_network_crosstraffic == 1) {
+ XBT_DEBUG("Fullduplex active adding backward flow using 5%%");
+ xbt_dynar_foreach(back_route, i, link) {
+ lmm_expand(surf_network_model->model_private->maxmin_system, link->lmm_resource.constraint,
+ GENERIC_LMM_ACTION(action).variable, .05);
+ }
}
+ xbt_dynar_free(&route);
+ XBT_OUT();
+
return (surf_action_t) action;
}
-static void action_suspend(surf_action_t action)
+static xbt_dynar_t net_get_route(void *src, void *dst)
{
- ((surf_action_network_CM02_t) action)->suspended = 1;
- lmm_update_variable_weight(maxmin_system,
- ((surf_action_network_CM02_t) action)->variable, 0.0);
+ xbt_dynar_t route = NULL;
+ routing_get_route_and_latency(src, dst, &route, NULL);
+ return route;
}
-static void action_resume(surf_action_t action)
+static double net_get_link_bandwidth(const void *link)
{
- lmm_update_variable_weight(maxmin_system,
- ((surf_action_network_CM02_t) action)->variable, 1.0);
- ((surf_action_network_CM02_t) action)->suspended = 0;
+ surf_resource_lmm_t lmm = (surf_resource_lmm_t) link;
+ return lmm->power.peak * lmm->power.scale;
}
-static int action_is_suspended(surf_action_t action)
+static double net_get_link_latency(const void *link)
{
- return ((surf_action_network_CM02_t) action)->suspended;
+ return ((link_CM02_t) link)->lat_current;
}
-static void action_set_max_duration(surf_action_t action, double duration)
+static int net_link_shared(const void *link)
{
- action->max_duration = duration;
+ return
+ lmm_constraint_is_shared(((surf_resource_lmm_t) link)->constraint);
}
-static void finalize(void)
+static void net_finalize(void)
{
- int i,j;
+ lmm_system_free(surf_network_model->model_private->maxmin_system);
+ surf_network_model->model_private->maxmin_system = NULL;
- 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);
- free(surf_network_resource->common_public);
- free(surf_network_resource->common_private);
- free(surf_network_resource->extension_public);
+ if (surf_network_model->model_private->update_mechanism == UM_LAZY) {
+ xbt_heap_free(surf_network_model->model_private->action_heap);
+ xbt_swag_free(surf_network_model->model_private->modified_set);
+ }
- free(surf_network_resource);
- surf_network_resource = NULL;
+ surf_model_exit(surf_network_model);
+ surf_network_model = NULL;
- loopback = NULL;
- for (i = 0; i < card_number; i++)
- for (j = 0; j < card_number; j++)
- free(ROUTE(i,j));
- free(routing_table);
- routing_table = NULL;
- free(routing_table_size);
- routing_table_size = NULL;
- card_number = 0;
+ if (smpi_bw_factor)
+ xbt_dynar_free(&smpi_bw_factor);
+ if (smpi_lat_factor)
+ xbt_dynar_free(&smpi_lat_factor);
}
-static void surf_network_resource_init_internal(void)
+static void smpi_gap_append(double size, const link_CM02_t link,
+ surf_action_network_CM02_t action)
{
- s_surf_action_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 =
+ 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;
+ }
+}
- surf_network_resource = xbt_new0(s_surf_network_resource_t, 1);
+static void smpi_gap_remove(surf_action_lmm_t lmm_action)
+{
+ xbt_fifo_t fifo;
+ size_t size;
+ surf_action_network_CM02_t action = (surf_action_network_CM02_t)(lmm_action);
+
+ 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);
+ }
+ }
+ }
+}
- 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_public =
- xbt_new0(s_surf_network_resource_extension_public_t, 1);
+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")) {
+ surf_network_model->model_private->update_mechanism = UM_FULL;
+ surf_network_model->model_private->selective_update = select;
+ } else if (!strcmp(optim, "Lazy")) {
+ surf_network_model->model_private->update_mechanism = UM_LAZY;
+ surf_network_model->model_private->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);
+ }
+}
+
+static void surf_network_model_init_internal(void)
+{
+ s_surf_action_network_CM02_t comm;
+ surf_network_model = surf_model_init();
+
+ set_update_mechanism();
+
+ surf_network_model->name = "network";
+ surf_network_model->action_unref = surf_action_unref;
+ surf_network_model->action_cancel = surf_action_cancel;
+ surf_network_model->action_recycle = net_action_recycle;
+
+ surf_network_model->get_remains = surf_action_get_remains;
+
+#ifdef HAVE_LATENCY_BOUND_TRACKING
+ surf_network_model->get_latency_limited = net_get_link_latency_limited;
+#endif
+#ifdef HAVE_TRACING
+ surf_network_model->set_category = surf_action_set_category;
+#endif
+
+ surf_network_model->model_private->resource_used = net_resource_used;
+ if (surf_network_model->model_private->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 (surf_network_model->model_private->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;
+ surf_network_model->model_private->finalize = net_finalize;
+
+ surf_network_model->suspend = surf_action_suspend;
+ surf_network_model->resume = surf_action_resume;
+ surf_network_model->is_suspended = surf_action_is_suspended;
+ surf_cpu_model->set_max_duration = surf_action_set_max_duration;
+
+ 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 (!surf_network_model->model_private->maxmin_system)
+ surf_network_model->model_private->maxmin_system = lmm_system_new(surf_network_model->model_private->selective_update);
+
+ routing_model_create(net_create_resource("__loopback__",
+ 498000000, NULL, 0.000015, NULL,
+ SURF_RESOURCE_ON, NULL,
+ SURF_LINK_FATPIPE, NULL));
+
+ if (surf_network_model->model_private->update_mechanism == UM_LAZY) {
+ surf_network_model->model_private->action_heap = xbt_heap_new(8, NULL);
+ xbt_heap_set_update_callback(surf_network_model->model_private->action_heap,
+ surf_action_lmm_update_index_heap);
+ surf_network_model->model_private->modified_set =
+ xbt_swag_new(xbt_swag_offset(comm, generic_lmm_action.action_list_hookup));
+ surf_network_model->model_private->maxmin_system->keep_track = surf_network_model->model_private->modified_set;
+ }
- 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));
+ surf_network_model->gap_remove = NULL;
+}
- 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_use = action_use;
- 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;
- surf_network_resource->common_public->action_set_data = surf_action_set_data;
- surf_network_resource->common_public->name = "network";
+/************************************************************************/
+/* New model based on LV08 and experimental results of MPI ping-pongs */
+/************************************************************************/
+/* @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)
+{
- 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_resource->common_public->suspend = action_suspend;
- surf_network_resource->common_public->resume = action_resume;
- surf_network_resource->common_public->is_suspended = action_is_suspended;
- surf_cpu_resource->common_public->set_max_duration = action_set_max_duration;
+ surf_network_model_init_internal();
+ latency_factor_callback = &smpi_latency_factor;
+ bandwidth_factor_callback = &smpi_bandwidth_factor;
+ bandwidth_constraint_callback = &smpi_bandwidth_constraint;
+ gap_append = &smpi_gap_append;
+ surf_network_model->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/sender_gap", 10e-6);
+ xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 8775);
+}
- surf_network_resource->extension_public->communicate = communicate;
+/************************************************************************/
+/* New model based on optimizations discussed during Pedro Velho's thesis*/
+/************************************************************************/
+/* @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)
+{
+ if (surf_network_model)
+ return;
- network_link_set = xbt_dict_new();
- network_card_set = xbt_dict_new();
+ surf_network_model_init_internal();
+ net_define_callbacks();
+ xbt_dynar_push(model_list, &surf_network_model);
+ network_solve = lmm_solve;
- xbt_assert0(maxmin_system, "surf_init has to be called first!");
+ xbt_cfg_setdefault_double(_surf_cfg_set, "network/latency_factor",
+ 13.01);
+ xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
+ 0.97);
+ xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 20537);
}
/***************************************************************************/
/* month = {oct}, */
/* year = {2002} */
/* } */
-void surf_network_resource_init_CM02(const char *filename)
+void surf_network_model_init_CM02(void)
{
- if (surf_network_resource)
+
+ if (surf_network_model)
return;
- surf_network_resource_init_internal();
- parse_file(filename);
- xbt_dynar_push(resource_list, &surf_network_resource);
+
+ surf_network_model_init_internal();
+ 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", 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);
+}
+
+/***************************************************************************/
+/* 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;
+
+ surf_network_model_init_internal();
+ 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);
+ 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);
+}
+
+
+void surf_network_model_init_Reno2(void)
+{
+ if (surf_network_model)
+ return;
+
+ surf_network_model_init_internal();
+ 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);
+}
+
+void surf_network_model_init_Vegas(void)
+{
+ if (surf_network_model)
+ return;
+
+ surf_network_model_init_internal();
+ 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);
}