1 /* Copyright (c) 2013-2014. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
7 #include "network_interface.hpp"
8 #include "simgrid/sg_config.h"
10 #ifndef NETWORK_INTERFACE_CPP_
11 #define NETWORK_INTERFACE_CPP_
13 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_network, surf,
14 "Logging specific to the SURF network module");
20 const char* sg_link_name(Link *link) {
21 return link->getName();
23 Link * sg_link_by_name(const char* name) {
24 return Link::byName(name);
27 int sg_link_is_shared(Link *link){
28 return link->isShared();
30 double sg_link_bandwidth(Link *link){
31 return link->getBandwidth();
33 double sg_link_latency(Link *link){
34 return link->getLatency();
36 void* sg_link_data(Link *link) {
37 return link->getData();
39 void sg_link_data_set(Link *link,void *data) {
42 int sg_link_amount(void) {
43 return Link::linksAmount();
45 Link** sg_link_list(void) {
46 return Link::linksList();
48 void sg_link_exit(void) {
56 boost::unordered_map<std::string,Link *> *Link::links = new boost::unordered_map<std::string,Link *>();
57 Link *Link::byName(const char* name) {
60 res = links->at(name);
61 } catch (std::out_of_range& e) {}
65 /** @brief Returns the amount of links in the platform */
66 int Link::linksAmount() {
69 /** @brief Returns a list of all existing links */
70 Link **Link::linksList() {
71 Link **res = xbt_new(Link*, (int)links->size());
73 for (auto kv : *links) {
78 /** @brief destructor of the static data */
79 void Link::linksExit() {
80 for (auto kv : *links)
87 surf_callback(void, Link*) networkLinkCreatedCallbacks;
88 surf_callback(void, Link*) networkLinkDestructedCallbacks;
89 surf_callback(void, Link*, e_surf_resource_state_t, e_surf_resource_state_t) networkLinkStateChangedCallbacks;
90 surf_callback(void, NetworkAction*, e_surf_action_state_t, e_surf_action_state_t) networkActionStateChangedCallbacks;
91 surf_callback(void, NetworkAction*, RoutingEdge *src, RoutingEdge *dst, double size, double rate) networkCommunicateCallbacks;
93 void netlink_parse_init(sg_platf_link_cbarg_t link){
94 if (link->policy == SURF_LINK_FULLDUPLEX) {
96 link_id = bprintf("%s_UP", link->id);
97 surf_network_model->createLink(link_id,
99 link->bandwidth_trace,
103 link->state_trace, link->policy, link->properties);
105 link_id = bprintf("%s_DOWN", link->id);
106 surf_network_model->createLink(link_id,
108 link->bandwidth_trace,
112 link->state_trace, link->policy, link->properties);
115 surf_network_model->createLink(link->id,
117 link->bandwidth_trace,
121 link->state_trace, link->policy, link->properties);
125 void net_add_traces(){
126 surf_network_model->addTraces();
133 NetworkModel *surf_network_model = NULL;
135 double NetworkModel::latencyFactor(double /*size*/) {
136 return sg_latency_factor;
139 double NetworkModel::bandwidthFactor(double /*size*/) {
140 return sg_bandwidth_factor;
143 double NetworkModel::bandwidthConstraint(double rate, double /*bound*/, double /*size*/) {
147 double NetworkModel::shareResourcesFull(double now)
149 NetworkAction *action = NULL;
150 ActionList *runningActions = surf_network_model->getRunningActionSet();
153 minRes = shareResourcesMaxMin(runningActions, surf_network_model->p_maxminSystem, surf_network_model->f_networkSolve);
155 for(ActionList::iterator it(runningActions->begin()), itend(runningActions->end())
156 ; it != itend ; ++it) {
157 action = static_cast<NetworkAction*>(&*it);
158 #ifdef HAVE_LATENCY_BOUND_TRACKING
159 if (lmm_is_variable_limited_by_latency(action->getVariable())) {
160 action->m_latencyLimited = 1;
162 action->m_latencyLimited = 0;
165 if (action->m_latency > 0) {
166 minRes = (minRes < 0) ? action->m_latency : min(minRes, action->m_latency);
170 XBT_DEBUG("Min of share resources %f", minRes);
179 Link::Link(NetworkModel *model, const char *name, xbt_dict_t props)
180 : Resource(model, name, props)
183 surf_callback_emit(networkLinkCreatedCallbacks, this);
184 links->insert({name, this});
186 XBT_DEBUG("Create link '%s'",name);
189 Link::Link(NetworkModel *model, const char *name, xbt_dict_t props,
190 lmm_constraint_t constraint,
191 tmgr_history_t history,
192 tmgr_trace_t state_trace)
193 : Resource(model, name, props, constraint),
196 surf_callback_emit(networkLinkCreatedCallbacks, this);
198 p_stateEvent = tmgr_history_add_trace(history, state_trace, 0.0, 0, this);
200 links->insert({name, this});
201 XBT_DEBUG("Create link '%s'",name);
207 surf_callback_emit(networkLinkDestructedCallbacks, this);
212 return lmm_constraint_used(getModel()->getMaxminSystem(), getConstraint());
215 double Link::getLatency()
220 double Link::getBandwidth()
222 return p_power.peak * p_power.scale;
225 bool Link::isShared()
227 return lmm_constraint_is_shared(getConstraint());
230 void Link::setState(e_surf_resource_state_t state){
231 e_surf_resource_state_t old = Resource::getState();
232 Resource::setState(state);
233 surf_callback_emit(networkLinkStateChangedCallbacks, this, old, state);
242 void NetworkAction::setState(e_surf_action_state_t state){
243 e_surf_action_state_t old = getState();
244 Action::setState(state);
245 surf_callback_emit(networkActionStateChangedCallbacks, this, old, state);
248 #endif /* NETWORK_INTERFACE_CPP_ */