namespace kernel {
namespace routing {
-FatTreeZone::~FatTreeZone()
-{
- for (FatTreeNode const* node : this->nodes_)
- delete node;
- for (FatTreeLink const* link : this->links_)
- delete link;
-}
-
-bool FatTreeZone::is_in_sub_tree(FatTreeNode* root, FatTreeNode* node) const
+bool FatTreeZone::is_in_sub_tree(const FatTreeNode* root, const FatTreeNode* node) const
{
XBT_DEBUG("Is %d(%u,%u) in the sub tree of %d(%u,%u) ?", node->id, node->level, node->position, root->id, root->level,
root->position);
return true;
}
-void FatTreeZone::get_local_route(NetPoint* src, NetPoint* dst, RouteCreationArgs* into, double* latency)
+void FatTreeZone::get_local_route(const NetPoint* src, const NetPoint* dst, Route* into, double* latency)
{
if (dst->is_router() || src->is_router())
return;
auto searchedNode = this->compute_nodes_.find(src->id());
xbt_assert(searchedNode != this->compute_nodes_.end(), "Could not find the source %s [%u] in the fat tree",
src->get_cname(), src->id());
- FatTreeNode* source = searchedNode->second;
+ const FatTreeNode* source = searchedNode->second.get();
searchedNode = this->compute_nodes_.find(dst->id());
xbt_assert(searchedNode != this->compute_nodes_.end(), "Could not find the destination %s [%u] in the fat tree",
dst->get_cname(), dst->id());
- FatTreeNode* destination = searchedNode->second;
+ const FatTreeNode* destination = searchedNode->second.get();
XBT_VERB("Get route and latency from '%s' [%u] to '%s' [%u] in a fat tree", src->get_cname(), src->id(),
dst->get_cname(), dst->id());
/* In case destination is the source, and there is a loopback, let's use it instead of going up to a switch */
if (source->id == destination->id && has_loopback()) {
- into->link_list.push_back(source->loopback_);
+ into->link_list_.push_back(source->loopback_);
if (latency)
*latency += source->loopback_->get_latency();
return;
}
- FatTreeNode* currentNode = source;
+ const FatTreeNode* currentNode = source;
// up part
while (not is_in_sub_tree(currentNode, destination)) {
int k = this->num_parents_per_node_[currentNode->level];
d = d % k;
- into->link_list.push_back(currentNode->parents[d]->up_link_);
+
+ if (currentNode->limiter_link_)
+ into->link_list_.push_back(currentNode->limiter_link_);
+
+ into->link_list_.push_back(currentNode->parents[d]->up_link_);
if (latency)
*latency += currentNode->parents[d]->up_link_->get_latency();
- if (currentNode->limiter_link_)
- into->link_list.push_back(currentNode->limiter_link_);
currentNode = currentNode->parents[d]->up_node_;
}
while (currentNode != destination) {
for (unsigned int i = 0; i < currentNode->children.size(); i++) {
if (i % this->num_children_per_node_[currentNode->level - 1] == destination->label[currentNode->level - 1]) {
- into->link_list.push_back(currentNode->children[i]->down_link_);
+ into->link_list_.push_back(currentNode->children[i]->down_link_);
+
+ if (currentNode->limiter_link_)
+ into->link_list_.push_back(currentNode->limiter_link_);
+
if (latency)
*latency += currentNode->children[i]->down_link_->get_latency();
currentNode = currentNode->children[i]->down_node_;
- if (currentNode->limiter_link_)
- into->link_list.push_back(currentNode->limiter_link_);
XBT_DEBUG("%d(%u,%u) is accessible through %d(%u,%u)", destination->id, destination->level,
destination->position, currentNode->id, currentNode->level, currentNode->position);
}
}
}
+ if (currentNode->limiter_link_) { // limiter for receiver/destination
+ into->link_list_.push_back(currentNode->limiter_link_);
+ }
// set gateways (if any)
- into->gw_src = get_gateway(src->id());
- into->gw_dst = get_gateway(dst->id());
+ into->gw_src_ = get_gateway(src->id());
+ into->gw_dst_ = get_gateway(dst->id());
+}
+
+void FatTreeZone::build_upper_levels(const s4u::ClusterCallbacks& set_callbacks)
+{
+ generate_switches(set_callbacks);
+ generate_labels();
+
+ unsigned int k = 0;
+ // Nodes are totally ordered, by level and then by position, in this->nodes
+ for (unsigned int i = 0; i < levels_; i++) {
+ for (unsigned int j = 0; j < nodes_by_level_[i]; j++) {
+ connect_node_to_parents(nodes_[k].get());
+ k++;
+ }
+ }
}
-/* This function makes the assumption that parse_specific_arguments() and
- * addNodes() have already been called
- */
void FatTreeZone::do_seal()
{
if (this->levels_ == 0) {
return;
}
- this->generate_switches();
-
- if (XBT_LOG_ISENABLED(surf_route_fat_tree, xbt_log_priority_debug)) {
- std::stringstream msgBuffer;
+ if (not XBT_LOG_ISENABLED(surf_route_fat_tree, xbt_log_priority_debug)) {
+ return;
+ }
- msgBuffer << "We are creating a fat tree of " << this->levels_ << " levels "
- << "with " << this->nodes_by_level_[0] << " processing nodes";
- for (unsigned int i = 1; i <= this->levels_; i++) {
- msgBuffer << ", " << this->nodes_by_level_[i] << " switches at level " << i;
- }
- XBT_DEBUG("%s", msgBuffer.str().c_str());
- msgBuffer.str("");
- msgBuffer << "Nodes are : ";
+ /* for debugging purpose only, Fat-Tree is already build when seal is called */
+ std::stringstream msgBuffer;
- for (FatTreeNode const* node : this->nodes_) {
- msgBuffer << node->id << "(" << node->level << "," << node->position << ") ";
- }
- XBT_DEBUG("%s", msgBuffer.str().c_str());
+ msgBuffer << "We are creating a fat tree of " << this->levels_ << " levels "
+ << "with " << this->nodes_by_level_[0] << " processing nodes";
+ for (unsigned int i = 1; i <= this->levels_; i++) {
+ msgBuffer << ", " << this->nodes_by_level_[i] << " switches at level " << i;
}
+ XBT_DEBUG("%s", msgBuffer.str().c_str());
+ msgBuffer.str("");
+ msgBuffer << "Nodes are : ";
- this->generate_labels();
-
- unsigned int k = 0;
- // Nodes are totally ordered, by level and then by position, in this->nodes
- for (unsigned int i = 0; i < this->levels_; i++) {
- for (unsigned int j = 0; j < this->nodes_by_level_[i]; j++) {
- this->connect_node_to_parents(this->nodes_[k]);
- k++;
- }
+ for (auto const& node : this->nodes_) {
+ msgBuffer << node->id << "(" << node->level << "," << node->position << ") ";
}
+ XBT_DEBUG("%s", msgBuffer.str().c_str());
- if (XBT_LOG_ISENABLED(surf_route_fat_tree, xbt_log_priority_debug)) {
- std::stringstream msgBuffer;
- msgBuffer << "Links are : ";
- for (FatTreeLink const* link : this->links_) {
- msgBuffer << "(" << link->up_node_->id << "," << link->down_node_->id << ") ";
- }
- XBT_DEBUG("%s", msgBuffer.str().c_str());
+ msgBuffer.clear();
+ msgBuffer << "Links are : ";
+ for (auto const& link : this->links_) {
+ msgBuffer << "(" << link->up_node_->id << "," << link->down_node_->id << ") ";
}
+ XBT_DEBUG("%s", msgBuffer.str().c_str());
}
int FatTreeZone::connect_node_to_parents(FatTreeNode* node)
XBT_DEBUG("We are connecting node %d(%u,%u) to his parents.", node->id, node->level, node->position);
currentParentNode += this->get_level_position(level + 1);
for (unsigned int i = 0; i < this->nodes_by_level_[level + 1]; i++) {
- if (this->are_related(*currentParentNode, node)) {
+ if (this->are_related(currentParentNode->get(), node)) {
XBT_DEBUG("%d(%u,%u) and %d(%u,%u) are related,"
" with %u links between them.",
node->id, node->level, node->position, (*currentParentNode)->id, (*currentParentNode)->level,
(*currentParentNode)->position, this->num_port_lower_level_[level]);
for (unsigned int j = 0; j < this->num_port_lower_level_[level]; j++) {
- this->add_link(*currentParentNode, node->label[level] + j * this->num_children_per_node_[level], node,
+ this->add_link(currentParentNode->get(), node->label[level] + j * this->num_children_per_node_[level], node,
(*currentParentNode)->label[level] + j * this->num_parents_per_node_[level]);
}
connectionsNumber++;
return true;
}
-void FatTreeZone::generate_switches()
+void FatTreeZone::generate_switches(const s4u::ClusterCallbacks& set_callbacks)
{
XBT_DEBUG("Generating switches.");
this->nodes_by_level_.resize(this->levels_ + 1, 0);
this->nodes_by_level_[i + 1] = nodesInThisLevel;
}
+ /* get limiter for this router */
+ auto get_limiter = [this, &set_callbacks](unsigned int i, unsigned int j, int id) -> resource::LinkImpl* {
+ kernel::resource::LinkImpl* limiter = nullptr;
+ if (set_callbacks.limiter) {
+ const auto* s4u_link = set_callbacks.limiter(get_iface(), {i + 1, j}, id);
+ if (s4u_link) {
+ limiter = s4u_link->get_impl();
+ }
+ }
+ return limiter;
+ };
// Create the switches
int k = 0;
for (unsigned int i = 0; i < this->levels_; i++) {
for (unsigned int j = 0; j < this->nodes_by_level_[i + 1]; j++) {
- auto* newNode = new FatTreeNode(--k, i + 1, j, nullptr, nullptr);
+ k--;
+ auto newNode = std::make_shared<FatTreeNode>(k, i + 1, j, get_limiter(i, j, k), nullptr);
XBT_DEBUG("We create the switch %d(%u,%u)", newNode->id, newNode->level, newNode->position);
newNode->children.resize(this->num_children_per_node_[i] * this->num_port_lower_level_[i]);
if (i != this->levels_ - 1) {
newNode->parents.resize(this->num_parents_per_node_[i + 1] * this->num_port_lower_level_[i + 1]);
}
newNode->label.resize(this->levels_);
- this->nodes_.push_back(newNode);
+ this->nodes_.emplace_back(newNode);
}
}
}
{
using std::make_pair;
static int position = 0;
- auto* newNode = new FatTreeNode(id, 0, position++, limiter, loopback);
+ auto newNode = std::make_shared<FatTreeNode>(id, 0, position, limiter, loopback);
+ position++;
newNode->parents.resize(this->num_parents_per_node_[0] * this->num_port_lower_level_[0]);
newNode->label.resize(this->levels_);
this->compute_nodes_.insert(make_pair(id, newNode));
- this->nodes_.push_back(newNode);
+ this->nodes_.emplace_back(newNode);
}
void FatTreeZone::add_link(FatTreeNode* parent, unsigned int parentPort, FatTreeNode* child, unsigned int childPort)
std::string id =
"link_from_" + std::to_string(child->id) + "_" + std::to_string(parent->id) + "_" + std::to_string(uniqueId);
- if (link_sharing_policy_ == s4u::Link::SharingPolicy::SPLITDUPLEX) {
- linkup = create_link(id + "_UP", std::vector<double>{link_bw_})->set_latency(link_lat_)->seal();
- linkdown = create_link(id + "_DOWN", std::vector<double>{link_bw_})->set_latency(link_lat_)->seal();
+ if (get_link_sharing_policy() == s4u::Link::SharingPolicy::SPLITDUPLEX) {
+ linkup =
+ create_link(id + "_UP", std::vector<double>{get_link_bandwidth()})->set_latency(get_link_latency())->seal();
+ linkdown =
+ create_link(id + "_DOWN", std::vector<double>{get_link_bandwidth()})->set_latency(get_link_latency())->seal();
} else {
- linkup = create_link(id, std::vector<double>{link_bw_})->set_latency(link_lat_)->seal();
+ linkup = create_link(id, std::vector<double>{get_link_bandwidth()})->set_latency(get_link_latency())->seal();
linkdown = linkup;
}
uniqueId++;
- auto* newLink = new FatTreeLink(child, parent, linkup->get_impl(), linkdown->get_impl());
+ auto newLink = std::make_shared<FatTreeLink>(child, parent, linkup->get_impl(), linkdown->get_impl());
XBT_DEBUG("Creating a link between the parent (%u,%u,%u) and the child (%u,%u,%u)", parent->level, parent->position,
parentPort, child->level, child->position, childPort);
parent->children[parentPort] = newLink;
child->parents[childPort] = newLink;
- this->links_.push_back(newLink);
+ this->links_.emplace_back(newLink);
}
void FatTreeZone::check_topology(unsigned int n_levels, const std::vector<unsigned int>& down_links,
check_vector(link_count, "link count");
}
-void FatTreeZone::set_link_characteristics(double bw, double lat, s4u::Link::SharingPolicy sharing_policy)
-{
- link_sharing_policy_ = sharing_policy;
- link_bw_ = bw;
- link_lat_ = lat;
-}
-
void FatTreeZone::set_topology(unsigned int n_levels, const std::vector<unsigned int>& down_links,
const std::vector<unsigned int>& up_links, const std::vector<unsigned int>& link_count)
{
xbt_assert(file.is_open(), "Unable to open file %s", filename.c_str());
file << "graph AsClusterFatTree {\n";
- for (FatTreeNode const* node : this->nodes_) {
+ for (auto const& node : this->nodes_) {
file << node->id;
if (node->id < 0)
file << " [shape=circle];\n";
file << " [shape=hexagon];\n";
}
- for (FatTreeLink const* link : this->links_) {
+ for (auto const& link : this->links_) {
file << link->down_node_->id << " -- " << link->up_node_->id << ";\n";
}
file << "}";
zone->set_link_characteristics(bandwidth, latency, sharing_policy);
/* populating it */
- int tot_elements = std::accumulate(params.down.begin(), params.down.end(), 1, std::multiplies<>());
- for (int i = 0; i < tot_elements; i++) {
+ unsigned int tot_elements = std::accumulate(params.down.begin(), params.down.end(), 1, std::multiplies<>());
+ for (unsigned int i = 0; i < tot_elements; i++) {
kernel::routing::NetPoint* netpoint;
Link* limiter;
Link* loopback;
- zone->fill_leaf_from_cb(i, params.down, set_callbacks, &netpoint, &loopback, &limiter);
+ /* coordinates are based on 2 indexes: number of levels and id */
+ zone->fill_leaf_from_cb(i, {params.levels + 1, tot_elements}, set_callbacks, &netpoint, &loopback, &limiter);
zone->add_processing_node(i, limiter ? limiter->get_impl() : nullptr, loopback ? loopback->get_impl() : nullptr);
}
+ zone->build_upper_levels(set_callbacks);
return zone->get_iface();
}