-/* $Id$ */
-
-/* Copyright (c) 2004 Arnaud Legrand. All rights reserved. */
+/* Copyright (c) 2004, 2005, 2006, 2007, 2008, 2009, 2010. The SimGrid Team.
+ * All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
double sg_tcp_gamma = 0.0;
+/******************************************************************************/
+/* Factors callbacks */
+/******************************************************************************/
+static double constant_latency_factor(double size)
+{
+ return sg_latency_factor;
+}
+
+static double constant_bandwidth_factor(double size)
+{
+ return sg_bandwidth_factor;
+}
+
+static double constant_bandwidth_constraint(double rate, double bound, double size)
+{
+ return rate;
+}
+
+/**********************/
+/* SMPI callbacks */
+/**********************/
+static double smpi_latency_factor(double size)
+{
+ /* 1 B <= size <= 1 KiB */
+ if (size <= 1024.0) {
+ return 1.0056;
+ }
+
+ /* 2 KiB <= size <= 32 KiB */
+ if (size <= 32768.0) {
+ return 1.8805;
+ }
+
+ /* 64 KiB <= size <= 4 MiB */
+ return 22.7111;
+}
+
+static double smpi_bandwidth_factor(double size)
+{
+ /* 1 B <= size <= 1 KiB */
+ if (size <= 1024.0) {
+ return 0.2758;
+ }
+
+ /* 2 KiB <= size <= 32 KiB */
+ if (size <= 32768.0) {
+ return 0.5477;
+ }
+
+ /* 64 KiB <= size <= 4 MiB */
+ return 0.9359;
+}
+
+static double smpi_bandwidth_constraint(double rate, double bound, double size)
+{
+ return rate < 0 ? bound : min(bound, rate * smpi_bandwidth_factor(size));
+}
+
+
+static double (*latency_factor_callback)(double) = &constant_latency_factor;
+static double (*bandwidth_factor_callback)(double) = &constant_bandwidth_factor;
+static double (*bandwidth_constraint_callback)(double, double, double) = &constant_bandwidth_constraint;
+
+
static link_CM02_t net_link_new(char *name,
double bw_initial,
tmgr_trace_t bw_trace,
xbt_dict_set(surf_network_model->resource_set, name, nw_link,
surf_resource_free);
#ifdef HAVE_TRACING
- TRACE_surf_net_link_new (name, bw_initial, lat_initial);
+ TRACE_surf_link_declaration (name, bw_initial, lat_initial);
#endif
return nw_link;
xbt_swag_foreach_safe(action, next_action, running_actions) {
#ifdef HAVE_TRACING
- TRACE_surf_update_action_state (action, action->generic_action.data,
- lmm_variable_getvalue(action->variable), "BandwidthUsed", now-delta, delta);
-
xbt_dynar_t route = used_routing->get_route(action->src, action->dst);
link_CM02_t link;
unsigned int i;
xbt_dynar_foreach(route, i, link) {
- TRACE_surf_update_action_state_net_resource (link->lmm_resource.generic_resource.name,
+ TRACE_surf_link_set_utilization (link->lmm_resource.generic_resource.name,
action->generic_action.data, lmm_variable_getvalue(action->variable), now-delta, delta);
}
#endif
static surf_action_t net_communicate(const char *src_name, const char *dst_name,
int src, int dst, double size, double rate)
{
+ unsigned int i;
+ link_CM02_t link;
+ int failed = 0;
surf_action_network_CM02_t action = NULL;
+ double bandwidth_bound;
/* LARGE PLATFORMS HACK:
Add a link_CM02_t *link and a int link_nb to network_card_CM02_t. It will represent local links for this node
Use the cluster_id for ->id */
xbt_dynar_t route = used_routing->get_route(src, dst);
/* LARGE PLATFORMS HACK:
total_route_size = route_size + src->link_nb + dst->nb */
- unsigned int i;
XBT_IN4("(%s,%s,%g,%g)", src_name, dst_name, size, rate);
/* LARGE PLATFORMS HACK:
"You're trying to send data from %s to %s but there is no connection between these two hosts.",
src_name, dst_name);
- link_CM02_t link;
- int failed = 0;
xbt_dynar_foreach(route, i, link) {
if (link->lmm_resource.state_current == SURF_RESOURCE_OFF) {
failed = 1;
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_bound = (*bandwidth_factor_callback)(size) * (link->lmm_resource.power.peak * link->lmm_resource.power.scale);
+ else
+ bandwidth_bound = min(bandwidth_bound, (*bandwidth_factor_callback)(size) * (link->lmm_resource.power.peak * link->lmm_resource.power.scale));
}
/* LARGE PLATFORMS HACK:
Add src->link and dst->link latencies */
action->lat_current = action->latency;
- action->latency *= sg_latency_factor;
+ action->latency *= (*latency_factor_callback)(size);
+ action->rate = (*bandwidth_constraint_callback)(action->rate, bandwidth_bound, size);
/* LARGE PLATFORMS HACK:
lmm_variable_new(..., total_route_size) */
NULL));
}
+/************************************************************************/
+/* New model based on LV08 and experimental results of MPI ping-pongs */
+/************************************************************************/
+void surf_network_model_init_SMPI(const char *filename)
+{
+
+ if (surf_network_model)
+ return;
+ surf_network_model_init_internal();
+ latency_factor_callback = &smpi_latency_factor;
+ bandwidth_factor_callback = &smpi_bandwidth_factor;
+ bandwidth_constraint_callback = &smpi_bandwidth_constraint;
+ net_define_callbacks(filename);
+ xbt_dynar_push(model_list, &surf_network_model);
+ network_solve = lmm_solve;
+
+ xbt_cfg_setdefault_double(_surf_cfg_set,"network/weight_S", 8775);
+
+ update_model_description(surf_network_model_description,
+ "SMPI", surf_network_model);
+}
+
/************************************************************************/
/* New model based on optimizations discussed during this thesis */
/************************************************************************/
