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;
+ }
+}
+
+static void gap_unknown(surf_action_network_CM02_t action) {
+ action->sender.gap = 0.0;
+ action->sender.link_name = NULL;
+ action->sender.fifo_item = NULL;
+ action->sender.size = 0.0;
+}
+
+static void gap_remove(surf_action_network_CM02_t action) {
+ xbt_fifo_t fifo;
+ size_t size;
+
+ if(sg_sender_gap > 0.0 && action->sender.link_name && action->sender.fifo_item) {
+ fifo = (xbt_fifo_t)xbt_dict_get_or_null(gap_lookup, action->sender.link_name);
+ xbt_fifo_remove_item(fifo, action->sender.fifo_item);
+ size = xbt_fifo_size(fifo);
+ if(size == 0) {
+ xbt_fifo_free(fifo);
+ xbt_dict_remove(gap_lookup, action->sender.link_name);
+ size = xbt_dict_size(gap_lookup);
+ if(size == 0) {
+ xbt_dict_free(&gap_lookup);
+ }
+ }
+ }
+}
/******************************************************************************/
/* Factors callbacks */
state_initial, state_trace,
bw_initial, bw_trace);
- xbt_assert1(!xbt_dict_get_or_null
- (surf_network_model->resource_set, name),
+ xbt_assert(!xbt_lib_get_or_null(link_lib, name, SURF_LINK_LEVEL),
"Link '%s' declared several times in the platform file.",
name);
if (policy == SURF_LINK_FATPIPE)
lmm_constraint_shared(nw_link->lmm_resource.constraint);
- xbt_dict_set(surf_network_model->resource_set, name, nw_link,
- surf_resource_free);
-#ifdef HAVE_TRACING
- TRACE_surf_link_declaration(nw_link, name, bw_initial, lat_initial);
-#endif
+ xbt_lib_set(link_lib, name, SURF_LINK_LEVEL, nw_link);
return nw_link;
}
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;
- DEBUG0("link_CM02");
+ XBT_DEBUG("link_CM02");
name_link = xbt_strdup(A_surfxml_link_id);
surf_parse_get_double(&bw_initial, A_surfxml_link_bandwidth);
bw_trace = tmgr_trace_new(A_surfxml_link_bandwidth_file);
surf_parse_get_double(&lat_initial, A_surfxml_link_latency);
lat_trace = tmgr_trace_new(A_surfxml_link_latency_file);
- xbt_assert0((A_surfxml_link_state == A_surfxml_link_state_ON)
+ 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)
xbt_dict_foreach(trace_connect_list_link_avail, cursor, trace_name, elm) {
tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
link_CM02_t link =
- xbt_dict_get_or_null(surf_network_model->resource_set, elm);
+ xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL);
- xbt_assert2(link, "Cannot connect trace %s to link %s: link undefined",
+ xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
trace_name, elm);
- xbt_assert2(trace,
+ xbt_assert(trace,
"Cannot connect trace %s to link %s: trace undefined",
trace_name, elm);
xbt_dict_foreach(trace_connect_list_bandwidth, cursor, trace_name, elm) {
tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
link_CM02_t link =
- xbt_dict_get_or_null(surf_network_model->resource_set, elm);
+ xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL);
- xbt_assert2(link, "Cannot connect trace %s to link %s: link undefined",
+ xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
trace_name, elm);
- xbt_assert2(trace,
+ xbt_assert(trace,
"Cannot connect trace %s to link %s: trace undefined",
trace_name, elm);
xbt_dict_foreach(trace_connect_list_latency, cursor, trace_name, elm) {
tmgr_trace_t trace = xbt_dict_get_or_null(traces_set_list, trace_name);
link_CM02_t link =
- xbt_dict_get_or_null(surf_network_model->resource_set, elm);
+ xbt_lib_get_or_null(link_lib, elm, SURF_LINK_LEVEL);
- xbt_assert2(link, "Cannot connect trace %s to link %s: link undefined",
+ xbt_assert(link, "Cannot connect trace %s to link %s: link undefined",
trace_name, elm);
- xbt_assert2(trace,
+ xbt_assert(trace,
"Cannot connect trace %s to link %s: trace undefined",
trace_name, elm);
if (action->category)
xbt_free(action->category);
#endif
- free(action);
+ surf_action_free(&action);
return 1;
}
return 0;
}
}
+ XBT_DEBUG("Min of share resources %f", min);
+
return min;
}
action->weight);
}
#ifdef HAVE_TRACING
- xbt_dynar_t route =
- global_routing->get_route(action->src_name, action->dst_name);
- link_CM02_t link;
- unsigned int i;
- xbt_dynar_foreach(route, i, link) {
- TRACE_surf_link_set_utilization(link,
- action->generic_action.data,
- (surf_action_t) action,
- lmm_variable_getvalue
- (action->variable), now - delta,
- delta);
+ if (TRACE_is_active()) {
+ 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)
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);
}
}
(nw_link->lmm_resource.power.peak *
nw_link->lmm_resource.power.scale));
#ifdef HAVE_TRACING
- TRACE_surf_link_set_bandwidth(date, nw_link,
+ 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));
action->lat_current)));
if (action->rate < sg_tcp_gamma / (2.0 * action->lat_current)) {
- INFO0("Flow is limited BYBANDWIDTH");
+ XBT_INFO("Flow is limited BYBANDWIDTH");
} else {
- INFO1("Flow is limited BYLATENCY, latency of flow is %f",
+ XBT_INFO("Flow is limited BYLATENCY, latency of flow is %f",
action->lat_current);
}
}
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();
}
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 route = global_routing->get_route(src_name, dst_name);
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(src_name, dst_name);
+ back_route = global_routing->get_route(dst_name, src_name);
}
/* LARGE PLATFORMS HACK:
total_route_size = route_size + src->link_nb + dst->nb */
- XBT_IN4("(%s,%s,%g,%g)", src_name, dst_name, size, rate);
+ XBT_IN("(%s,%s,%g,%g)", src_name, dst_name, size, rate);
/* LARGE PLATFORMS HACK:
assert on total_route_size */
- xbt_assert2(xbt_dynar_length(route),
- "You're trying to send data from %s to %s but there is no connection between these two hosts.",
+ xbt_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) {
#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;
- action->latency = 0.0;
- action->weight = 0.0;
bandwidth_bound = -1.0;
+
xbt_dynar_foreach(route, i, link) {
- action->latency += link->lat_current;
action->weight +=
- link->lat_current +
sg_weight_S_parameter /
(link->lmm_resource.power.peak * link->lmm_resource.power.scale);
if (bandwidth_bound < 0.0)
(*bandwidth_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) {
}
if (sg_network_fullduplex == 1) {
- DEBUG1("Fullduplex active adding backward flow using 5%c", '%');
+ XBT_DEBUG("Fullduplex active adding backward flow using 5%c", '%');
xbt_dynar_foreach(back_route, i, link) {
lmm_expand(network_maxmin_system, link->lmm_resource.constraint,
action->variable, .05);
/* LARGE PLATFORMS HACK:
expand also with src->link and dst->link */
#ifdef HAVE_TRACING
- action->src_name = xbt_new(char, strlen(src_name) + 1);
- strncpy(action->src_name, src_name, strlen(src_name) + 1);
-
- action->dst_name = xbt_new(char, strlen(dst_name) + 1);
- strncpy(action->dst_name, dst_name, strlen(dst_name) + 1);
+ if (TRACE_is_active()) {
+ action->src_name = xbt_strdup(src_name);
+ action->dst_name = xbt_strdup(dst_name);
+ } else {
+ action->src_name = action->dst_name = NULL;
+ }
#endif
- XBT_OUT;
+ xbt_dynar_free(&route);
+ XBT_OUT();
return (surf_action_t) action;
}
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->suspend = net_action_suspend;
surf_network_model->resume = net_action_resume;
surf_network_model->is_suspended = net_action_is_suspended;
- surf_cpu_model->set_max_duration = net_action_set_max_duration;
+ 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;
net_link_new(xbt_strdup("__loopback__"),
498000000, NULL, 0.000015, NULL,
SURF_RESOURCE_ON, NULL,
- SURF_LINK_FATPIPE, NULL));
+ SURF_LINK_FATPIPE, NULL),
+ net_get_link_latency);
}
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,
