-/* Authors: Arnaud Legrand */
+/* $Id$ */
+
+/* Copyright (c) 2004 Arnaud Legrand. All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
- under the terms of the license (GNU LGPL) which comes with this package. */
+ * under the terms of the license (GNU LGPL) which comes with this package. */
#include "network_private.h"
-#include "xbt/dict.h"
+#include "xbt/log.h"
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(network, surf ,"Logging specific to the SURF network module");
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(network, surf,
+ "Logging specific to the SURF network module");
surf_network_resource_t surf_network_resource = NULL;
-static xbt_dict_t network_set = NULL;
+static xbt_dict_t network_link_set = NULL;
+xbt_dict_t network_card_set = NULL;
+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 *route_new(const char *src, const char* dst)
+static void create_routing_table(void)
{
- return NULL;
+ routing_table = xbt_new0(network_link_CM02_t *, card_number * card_number);
+ routing_table_size = xbt_new0(int, card_number * card_number);
}
-/*
- Semantic: name scale initial power initial state
- power trace state trace
-
- Token: TOKEN_WORD TOKEN_WORD TOKEN_WORD TOKEN_WORD TOKEN_WORD TOKEN_WORD
- Type: string float float string ON/OFF string
-*/
+static void network_link_free(void *nw_link)
+{
+ free(((network_link_CM02_t)nw_link)->name);
+ free(nw_link);
+}
-static void parse_route(void)
+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)
{
- route_new(NULL,NULL);
+ network_link_CM02_t nw_link = xbt_new0(s_network_link_CM02_t, 1);
+
+
+ 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);
+
+ if(policy == SURF_NETWORK_LINK_FATPIPE)
+ lmm_constraint_shared(nw_link->constraint);
+
+ xbt_dict_set(network_link_set, name, nw_link, network_link_free);
+
+ return nw_link;
}
-static void parse_file(const char *file)
+static void network_card_free(void *nw_card)
{
- e_surf_token_t token;
+ free(((network_card_CM02_t)nw_card)->name);
+ free(nw_card);
+}
- find_section(file,"NETWORK");
+static int network_card_new(const char *card_name)
+{
+ network_card_CM02_t card = xbt_dict_get_or_null(network_card_set, card_name);
- while(1) {
- token=surf_parse();
+ 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;
+}
- if(token==TOKEN_END_SECTION) break;
- if(token==TOKEN_NEWLINE) continue;
-
- if(token==TOKEN_WORD) parse_route();
- else {CRITICAL1("Parse error line %d\n",line_pos);xbt_abort();}
+static void route_new(int src_id, int dst_id, char **links, int nb_link)
+{
+ network_link_CM02_t *link_list = NULL;
+ int i;
+
+ 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++) {
+ link_list[i] = xbt_dict_get_or_null(network_link_set, links[i]);
+ xbt_assert1(link_list[i],"Invalid link name \"%s\"",links[i]);
+ free(links[i]);
}
+ free(links);
+}
+
+static void parse_network_link(void)
+{
+ 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_surfxml_network_link_name);
+ surf_parse_get_double(&bw_initial,A_surfxml_network_link_bandwidth);
+ surf_parse_get_trace(&bw_trace, A_surfxml_network_link_bandwidth_file);
+ surf_parse_get_double(&lat_initial,A_surfxml_network_link_latency);
+ surf_parse_get_trace(&lat_trace, A_surfxml_network_link_latency_file);
+
+ xbt_assert0((A_surfxml_network_link_state==A_surfxml_network_link_state_ON)||
+ (A_surfxml_network_link_state==A_surfxml_network_link_state_OFF),
+ "Invalid state");
+ if (A_surfxml_network_link_state==A_surfxml_network_link_state_ON)
+ state_initial = SURF_NETWORK_LINK_ON;
+ else if (A_surfxml_network_link_state==A_surfxml_network_link_state_OFF)
+ state_initial = SURF_NETWORK_LINK_OFF;
+
+ if (A_surfxml_network_link_sharing_policy==A_surfxml_network_link_sharing_policy_SHARED)
+ policy_initial = SURF_NETWORK_LINK_SHARED;
+ else if (A_surfxml_network_link_sharing_policy==A_surfxml_network_link_sharing_policy_FATPIPE)
+ policy_initial = SURF_NETWORK_LINK_FATPIPE;
+
+ surf_parse_get_trace(&state_trace,A_surfxml_network_link_state_file);
+
+ network_link_new(name, bw_initial, bw_trace,
+ lat_initial, lat_trace, state_initial, state_trace,
+ policy_initial);
+}
+
+static int nb_link = 0;
+static char **link_name = NULL;
+static int src_id = -1;
+static int dst_id = -1;
+
+static void parse_route_set_endpoints(void)
+{
+ src_id = network_card_new(A_surfxml_route_src);
+ dst_id = network_card_new(A_surfxml_route_dst);
+ nb_link = 0;
+ link_name = NULL;
+}
- close_section("NETWORK");
+static void parse_route_elem(void)
+{
+ nb_link++;
+ link_name = xbt_realloc(link_name, (nb_link) * sizeof(char *));
+ link_name[(nb_link) - 1] = xbt_strdup(A_surfxml_route_element_name);
+}
+
+static void parse_route_set_route(void)
+{
+ route_new(src_id, dst_id, link_name, nb_link);
+}
+
+static void parse_file(const char *file)
+{
+ int i;
+
+ /* Figuring out the network links */
+ surf_parse_reset_parser();
+ ETag_surfxml_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_surfxml_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_surfxml_route_fun=parse_route_set_endpoints;
+ ETag_surfxml_route_element_fun=parse_route_elem;
+ ETag_surfxml_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 void *name_service(const char *name)
{
- return NULL;
+ network_card_CM02_t card = xbt_dict_get_or_null(network_card_set, name);
+ return card;
}
static const char *get_resource_name(void *resource_id)
{
- return NULL;
+ return ((network_card_CM02_t) resource_id)->name;
}
static int resource_used(void *resource_id)
{
+ return lmm_constraint_used(maxmin_system,
+ ((network_link_CM02_t) resource_id)->constraint);
+}
+
+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;
+ }
return 0;
}
-static void action_free(surf_action_t action)
+static void action_use(surf_action_t action)
{
- return;
+ action->using++;
}
static void action_cancel(surf_action_t action)
return;
}
-static void action_change_state(surf_action_t action, e_surf_action_state_t state)
+static void action_change_state(surf_action_t action,
+ e_surf_action_state_t state)
{
+/* 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;
}
-static xbt_heap_float_t share_resources(xbt_heap_float_t now)
+static double share_resources(double now)
{
- return -1.0;
+ s_surf_action_network_CM02_t s_action;
+ surf_action_network_CM02_t action = NULL;
+ xbt_swag_t running_actions = surf_network_resource->common_public->states.running_action_set;
+ double min = generic_maxmin_share_resources(running_actions,
+ 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;
+ }
+ }
+
+ return min;
}
-static void update_actions_state(xbt_heap_float_t now,
- xbt_heap_float_t delta)
+static void update_actions_state(double now, double delta)
{
+ double deltap = 0.0;
+ surf_action_network_CM02_t action = NULL;
+ surf_action_network_CM02_t next_action = NULL;
+ xbt_swag_t running_actions =
+ surf_network_resource->common_public->states.running_action_set;
+ /*
+ xbt_swag_t failed_actions =
+ surf_network_resource->common_public->states.failed_action_set;
+ */
+
+ 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,
+ action->lat_current);
+ }
+ 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) &&
+ (lmm_get_variable_weight(action->variable)>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;
+ }
+ }
+ }
+ }
+
return;
}
static void update_resource_state(void *id,
- tmgr_trace_event_t event_type,
- xbt_maxmin_float_t value)
+ tmgr_trace_event_t event_type,
+ double value)
{
+ network_link_CM02_t nw_link = id;
+ /* printf("[" "%lg" "] Asking to update network card \"%s\" with value " */
+ /* "%lg" " for event %p\n", surf_get_clock(), nw_link->name, */
+ /* value, event_type); */
+
+ if (event_type == nw_link->bw_event) {
+ nw_link->bw_current = value;
+ lmm_update_constraint_bound(maxmin_system, nw_link->constraint,
+ nw_link->bw_current);
+ } else if (event_type == nw_link->lat_event) {
+ double delta = value - nw_link->lat_current;
+ lmm_variable_t var = 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)) {
+ 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 / (2.0 * action->lat_current));
+ else
+ lmm_update_variable_bound(maxmin_system, action->variable,
+ min(action->rate,SG_TCP_CTE_GAMMA / (2.0 * action->lat_current)));
+ if(!(action->suspended))
+ lmm_update_variable_weight(maxmin_system, action->variable,
+ action->lat_current);
+ }
+ } else if (event_type == nw_link->state_event) {
+ if (value > 0)
+ nw_link->state_current = SURF_NETWORK_LINK_ON;
+ else
+ nw_link->state_current = SURF_NETWORK_LINK_OFF;
+ } else {
+ CRITICAL0("Unknown event ! \n");
+ xbt_abort();
+ }
+
return;
}
-static surf_action_t communicate(void *src, void *dst, xbt_maxmin_float_t size)
+static surf_action_t communicate(void *src, void *dst, double size, double rate)
{
- return NULL;
+ 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;
+
+ XBT_IN4("(%s,%s,%g,%g)",card_src->name,card_dst->name,size,rate);
+ xbt_assert2(route_size,"You're trying to send data from %s to %s but there is no connexion between these two cards.", card_src->name, card_dst->name);
+
+ 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);
+ action->rate = rate;
+
+ action->latency = 0.0;
+ for (i = 0; i < route_size; i++)
+ action->latency += route[i]->lat_current;
+ action->lat_current = 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 / (2.0 * action->lat_current));
+ else
+ lmm_update_variable_bound(maxmin_system, action->variable, -1.0);
+ } else {
+ if(action->lat_current>0)
+ lmm_update_variable_bound(maxmin_system, action->variable,
+ min(action->rate,SG_TCP_CTE_GAMMA / (2.0 * action->lat_current)));
+ else
+ lmm_update_variable_bound(maxmin_system, action->variable, action->rate);
+ }
+
+ for (i = 0; i < route_size; i++)
+ lmm_expand(maxmin_system, route[i]->constraint, action->variable, 1.0);
+ XBT_OUT;
+
+ return (surf_action_t) action;
+}
+
+static void action_suspend(surf_action_t action)
+{
+ ((surf_action_network_CM02_t) action)->suspended = 1;
+ lmm_update_variable_weight(maxmin_system,
+ ((surf_action_network_CM02_t) action)->variable, 0.0);
+}
+
+static void action_resume(surf_action_t action)
+{
+ lmm_update_variable_weight(maxmin_system,
+ ((surf_action_network_CM02_t) action)->variable,
+ ((surf_action_network_CM02_t) action)->lat_current);
+ ((surf_action_network_CM02_t) action)->suspended = 0;
+}
+
+static int action_is_suspended(surf_action_t action)
+{
+ return ((surf_action_network_CM02_t) action)->suspended;
+}
+
+static void action_set_max_duration(surf_action_t action, double duration)
+{
+ action->max_duration = duration;
}
static void finalize(void)
{
+ int i,j;
+
+ 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);
+
+ free(surf_network_resource);
+ surf_network_resource = 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;
}
static void surf_network_resource_init_internal(void)
{
s_surf_action_t action;
- surf_network_resource = xbt_new0(s_surf_network_resource_t,1);
-
- surf_network_resource->common_private = xbt_new0(s_surf_resource_private_t,1);
- surf_network_resource->common_public = xbt_new0(s_surf_resource_public_t,1);
-/* surf_network_resource->extension_private = xbt_new0(s_surf_network_resource_extension_private_t,1); */
- surf_network_resource->extension_public = xbt_new0(s_surf_network_resource_extension_public_t,1);
-
- 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_resource = xbt_new0(s_surf_network_resource_t, 1);
+
+ surf_network_resource->common_private =
+ xbt_new0(s_surf_resource_private_t, 1);
+ surf_network_resource->common_public =
+ xbt_new0(s_surf_resource_public_t, 1);
+ surf_network_resource->extension_public =
+ xbt_new0(s_surf_network_resource_extension_public_t, 1);
+
+ 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_resource->common_public->name_service = name_service;
- surf_network_resource->common_public->get_resource_name = get_resource_name;
- surf_network_resource->common_public->resource_used = resource_used;
- surf_network_resource->common_public->action_get_state=surf_action_get_state;
+ surf_network_resource->common_public->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_change_state =
+ action_change_state;
+ surf_network_resource->common_public->action_set_data = surf_action_set_data;
+ surf_network_resource->common_public->name = "network";
+ 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->update_actions_state =
+ update_actions_state;
+ surf_network_resource->common_private->update_resource_state =
+ update_resource_state;
surf_network_resource->common_private->finalize = finalize;
+ 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_resource->extension_public->communicate = communicate;
- network_set = xbt_dict_new();
+ network_link_set = xbt_dict_new();
+ network_card_set = xbt_dict_new();
- xbt_assert0(maxmin_system,"surf_init has to be called first!");
+ xbt_assert0(maxmin_system, "surf_init has to be called first!");
}
-void surf_network_resource_init(const char* filename)
+/***************************************************************************/
+/* The nice TCP sharing model designed by Loris Marchal and Henri Casanova */
+/***************************************************************************/
+/* @TechReport{ rr-lip2002-40, */
+/* author = {Henri Casanova and Loris Marchal}, */
+/* institution = {LIP}, */
+/* title = {A Network Model for Simulation of Grid Application}, */
+/* number = {2002-40}, */
+/* month = {oct}, */
+/* year = {2002} */
+/* } */
+void surf_network_resource_init_CM02(const char *filename)
{
+ if (surf_network_resource)
+ return;
surf_network_resource_init_internal();
parse_file(filename);
xbt_dynar_push(resource_list, &surf_network_resource);
