-/* 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
#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");
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;
-static double net_get_link_bandwidth(const void *link);
+e_UM_t network_update_mechanism = UM_UNDEFINED;
+static int net_selective_update = 0;
-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;
+static int net_action_is_suspended(surf_action_t action);
+static void update_action_remaining(double now);
- 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 xbt_swag_t net_modified_set = NULL;
+static xbt_heap_t net_action_heap = NULL;
+xbt_swag_t keep_track = NULL;
-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;
+/* 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;
}
-static void gap_remove(surf_action_network_CM02_t action) {
- xbt_fifo_t fifo;
- size_t size;
+/* 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);
+}
- 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 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);
+ }
}
/******************************************************************************/
return rate;
}
+
/**********************/
/* SMPI callbacks */
/**********************/
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) =
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 link_CM02_t net_link_new(char *name,
+static void* net_create_resource(const char *name,
double bw_initial,
tmgr_trace_t bw_trace,
double lat_initial,
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;
- 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());
- }
-
-}
-
-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)
+static void net_parse_link_init(sg_platf_link_cbarg_t link)
{
- net_link_new(name, bw_initial, bw_trace,
- lat_initial, lat_trace, state_initial, state_trace,
- policy, xbt_dict_new());
+ 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_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_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);
}
}
-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)
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(action->category);
#endif
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)
}
#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;
}
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;
}
#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);
}
}
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;
action->weight);
}
#ifdef HAVE_TRACING
- xbt_dynar_t route =
- global_routing->get_route(action->src_name, action->dst_name);
- link_CM02_t link;
- unsigned int i;
- xbt_dynar_foreach(route, i, link) {
- TRACE_surf_link_set_utilization(link->lmm_resource.generic_resource.name,
- action->generic_action.data,
- (surf_action_t) action,
- lmm_variable_getvalue
- (action->variable), now - delta,
- delta);
+ 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);
+ /* 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);
action->generic_action.finish = surf_get_clock();
surf_network_model->action_state_set((surf_action_t) action,
SURF_ACTION_DONE);
- gap_remove(action);
+
+ 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);
- gap_remove(action);
+ 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 hat
+ 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)
(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,
+ 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));
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;
}
surf_action_network_CM02_t action = NULL;
double bandwidth_bound;
double latency=0.0;
- /* LARGE PLATFORMS HACK:
- Add a link_CM02_t *link and a int link_nb to network_card_CM02_t. It will represent local links for this node
- Use the cluster_id for ->id */
-
xbt_dynar_t back_route = NULL;
int constraints_per_variable = 0;
- // I will need this route for some time so let's call get_route_no_cleanup
- xbt_dynar_t route = global_routing->get_route_no_cleanup(src_name, dst_name);
-
- if (sg_network_fullduplex == 1) {
- back_route = global_routing->get_route(dst_name, src_name);
- }
-
- /* 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_IN("(%s,%s,%g,%g)", src_name, dst_name, size, rate);
- /* LARGE PLATFORMS HACK:
- assert on total_route_size */
- latency = global_routing->get_latency(src_name,dst_name);
- xbt_assert(xbt_dynar_length(route) || latency,
+
+ 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);
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);
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();
+ }
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->weight +=
- sg_weight_S_parameter /
+ double bb = bandwidth_factor_callback(size) *
(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 */
+ bandwidth_bound = (bandwidth_bound < 0.0)?bb:min(bandwidth_bound,bb);
+ }
+
action->lat_current = action->latency;
- action->latency *= (*latency_factor_callback) (size);
+ action->latency *= latency_factor_callback(size);
action->rate =
- (*bandwidth_constraint_callback) (action->rate, bandwidth_bound,
+ 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)!!!");
- 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);
}
+ constraints_per_variable = xbt_dynar_length(route);
+ if (back_route != NULL)
+ constraints_per_variable += xbt_dynar_length(back_route);
- /* 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 =
+ if (action->latency > 0){
+ action->variable =
lmm_variable_new(network_maxmin_system, action, 0.0, -1.0,
constraints_per_variable);
- else
+ 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, xbt_dynar_is_empty(route)?NORMAL:LATENCY);
+ }
+ } 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);
+ 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) {
action->variable, 1.0);
}
- if (sg_network_fullduplex == 1) {
- XBT_DEBUG("Fullduplex active adding backward flow using 5%c", '%');
+ 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);
}
}
- /* LARGE PLATFORMS HACK:
- expand also with src->link and dst->link */
-#ifdef HAVE_TRACING
- action->src_name = xbt_strdup(src_name);
- action->dst_name = xbt_strdup(dst_name);
+#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);
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)
lmm_update_variable_weight(network_maxmin_system,
((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)
((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);
}
}
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
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";
#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 = net_action_set_category;
+#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;
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_cpu_model->set_max_duration = net_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;
+ 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),
- net_get_link_latency);
+ net_create_resource;
+
+ if (!network_maxmin_system)
+ network_maxmin_system = lmm_system_new(net_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) {
+#ifdef HAVE_TRACING
+ TRACE_set_network_update_mechanism ();
+#endif
+ 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;
+ net_selective_update = select;
+ } else if (!strcmp(optim,"Lazy")) {
+ network_update_mechanism = UM_LAZY;
+ net_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/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 */
+/* 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)
{
-
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;
- 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
}
/***************************************************************************/
/* 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,
xbt_cfg_setdefault_double(_surf_cfg_set, "network/bandwidth_factor",
0.92);
xbt_cfg_setdefault_double(_surf_cfg_set, "network/weight_S", 8775);
-
- update_model_description(surf_network_model_description,
- "Reno", surf_network_model);
}
-void surf_network_model_init_Reno2(const char *filename)
+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,
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_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,
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);
}
