X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/6c1d1796e85c27087724ae7d7bde8317a134ef44..d685808894710dda03e4734a9e39f617adda0508:/src/kernel/routing/ClusterZone.cpp diff --git a/src/kernel/routing/ClusterZone.cpp b/src/kernel/routing/ClusterZone.cpp index 08da44baaf..bb269eba5a 100644 --- a/src/kernel/routing/ClusterZone.cpp +++ b/src/kernel/routing/ClusterZone.cpp @@ -1,144 +1,115 @@ -/* Copyright (c) 2009-2017. The SimGrid Team. All rights reserved. */ +/* Copyright (c) 2009-2023. 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. */ -#include "src/kernel/routing/ClusterZone.hpp" -#include "src/kernel/routing/NetPoint.hpp" -#include "src/kernel/routing/RoutedZone.hpp" -#include "src/surf/network_interface.hpp" +#include "simgrid/kernel/routing/ClusterZone.hpp" +#include "simgrid/kernel/routing/NetPoint.hpp" +#include "src/kernel/resource/StandardLinkImpl.hpp" -XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route_cluster, surf, "Routing part of surf"); +XBT_LOG_NEW_DEFAULT_SUBCATEGORY(ker_routing_cluster, ker_routing, "Kernel Cluster Routing"); /* This routing is specifically setup to represent clusters, aka homogeneous sets of machines - * Note that a router is created, easing the interconnexion with the rest of the world. */ + * Note that a router is created, easing the interconnection with the rest of the world. */ -namespace simgrid { -namespace kernel { -namespace routing { -ClusterZone::ClusterZone(NetZone* father, std::string name) : NetZoneImpl(father, name) -{ -} +namespace simgrid::kernel::routing { -void ClusterZone::getLocalRoute(NetPoint* src, NetPoint* dst, sg_platf_route_cbarg_t route, double* lat) +void ClusterBase::set_loopback() { - XBT_VERB("cluster getLocalRoute from '%s'[%u] to '%s'[%u]", src->getCname(), src->id(), dst->getCname(), dst->id()); - xbt_assert(not privateLinks_.empty(), - "Cluster routing: no links attached to the source node - did you use host_link tag?"); - - if ((src->id() == dst->id()) && hasLoopback_) { - xbt_assert(not src->isRouter(), "Routing from a cluster private router to itself is meaningless"); - - std::pair info = privateLinks_.at(nodePosition(src->id())); - route->link_list->push_back(info.first); - if (lat) - *lat += info.first->latency(); - return; - } - - if (not src->isRouter()) { // No private link for the private router - if (hasLimiter_) { // limiter for sender - std::pair info = privateLinks_.at(nodePositionWithLoopback(src->id())); - route->link_list->push_back(info.first); - } - - std::pair info = privateLinks_.at(nodePositionWithLimiter(src->id())); - if (info.first) { // link up - route->link_list->push_back(info.first); - if (lat) - *lat += info.first->latency(); - } - } - - if (backbone_) { - route->link_list->push_back(backbone_); - if (lat) - *lat += backbone_->latency(); + if (not has_loopback_) { + num_links_per_node_++; + has_loopback_ = true; } +} - if (not dst->isRouter()) { // No specific link for router - - std::pair info = privateLinks_.at(nodePositionWithLimiter(dst->id())); - if (info.second) { // link down - route->link_list->push_back(info.second); - if (lat) - *lat += info.second->latency(); - } - if (hasLimiter_) { // limiter for receiver - info = privateLinks_.at(nodePositionWithLoopback(dst->id())); - route->link_list->push_back(info.first); - } +void ClusterBase::set_limiter() +{ + if (not has_limiter_) { + num_links_per_node_++; + has_limiter_ = true; } } -void ClusterZone::getGraph(xbt_graph_t graph, std::map* nodes, - std::map* edges) +void ClusterBase::set_link_characteristics(double bw, double lat, s4u::Link::SharingPolicy sharing_policy) { - xbt_assert(router_, - "Malformed cluster. This may be because your platform file is a hypergraph while it must be a graph."); + link_sharing_policy_ = sharing_policy; + link_bw_ = bw; + link_lat_ = lat; +} - /* create the router */ - xbt_node_t routerNode = new_xbt_graph_node(graph, router_->getCname(), nodes); +void ClusterBase::add_private_link_at(unsigned long position, + std::pair link) +{ + private_links_.try_emplace(position, link); +} - xbt_node_t backboneNode = nullptr; - if (backbone_) { - backboneNode = new_xbt_graph_node(graph, backbone_->getCname(), nodes); - new_xbt_graph_edge(graph, routerNode, backboneNode, edges); - } +void ClusterBase::set_gateway(unsigned long position, NetPoint* gateway) +{ + xbt_assert(not gateway || not gateway->is_netzone(), "ClusterBase: gateway cannot be another netzone %s", + gateway->get_cname()); + gateways_[position] = gateway; +} - for (auto const& src : getVertices()) { - if (not src->isRouter()) { - xbt_node_t previous = new_xbt_graph_node(graph, src->getCname(), nodes); - - std::pair info = privateLinks_.at(src->id()); - - if (info.first) { // link up - xbt_node_t current = new_xbt_graph_node(graph, info.first->getCname(), nodes); - new_xbt_graph_edge(graph, previous, current, edges); - - if (backbone_) { - new_xbt_graph_edge(graph, current, backboneNode, edges); - } else { - new_xbt_graph_edge(graph, current, routerNode, edges); - } - } - - if (info.second) { // link down - xbt_node_t current = new_xbt_graph_node(graph, info.second->getCname(), nodes); - new_xbt_graph_edge(graph, previous, current, edges); - - if (backbone_) { - new_xbt_graph_edge(graph, current, backboneNode, edges); - } else { - new_xbt_graph_edge(graph, current, routerNode, edges); - } - } - } - } +NetPoint* ClusterBase::get_gateway(unsigned long position) +{ + auto it = gateways_.find(position); + return it == gateways_.end() ? nullptr : it->second; } -void ClusterZone::create_links_for_node(ClusterCreationArgs* cluster, int id, int /*rank*/, int position) +void ClusterBase::fill_leaf_from_cb(unsigned long position, const std::vector& dimensions, + const s4u::ClusterCallbacks& set_callbacks, NetPoint** node_netpoint, + s4u::Link** lb_link, s4u::Link** limiter_link) { - std::string link_id = cluster->id + "_link_" + std::to_string(id); - - LinkCreationArgs link; - link.id = link_id; - link.bandwidth = cluster->bw; - link.latency = cluster->lat; - link.policy = cluster->sharing_policy; - sg_platf_new_link(&link); - - surf::LinkImpl *linkUp; - surf::LinkImpl *linkDown; - if (link.policy == SURF_LINK_FULLDUPLEX) { - linkUp = surf::LinkImpl::byName(link_id + "_UP"); - linkDown = surf::LinkImpl::byName(link_id + "_DOWN"); + xbt_assert(node_netpoint, "Invalid node_netpoint parameter"); + xbt_assert(lb_link, "Invalid lb_link parameter"); + xbt_assert(limiter_link, "Invalid limiter_link paramater"); + *lb_link = nullptr; + *limiter_link = nullptr; + + // auxiliary function to get dims from index + auto index_to_dims = [&dimensions](unsigned long index) { + std::vector dims_array(dimensions.size()); + for (auto i = static_cast(dimensions.size() - 1); i >= 0; --i) { + if (index == 0) + break; + unsigned long value = index % dimensions[i]; + dims_array[i] = value; + index = (index / dimensions[i]); + } + return dims_array; + }; + + kernel::routing::NetPoint* netpoint = nullptr; + kernel::routing::NetPoint* gw = nullptr; + auto dims = index_to_dims(position); + std::tie(netpoint, gw) = set_callbacks.netpoint(get_iface(), dims, position); + xbt_assert(netpoint, "set_netpoint(elem=%lu): Invalid netpoint (nullptr)", position); + if (netpoint->is_netzone()) { + xbt_assert(gw && not gw->is_netzone(), + "set_netpoint(elem=%lu): Netpoint (%s) is a netzone, but gateway (%s) is invalid", position, + netpoint->get_cname(), gw ? gw->get_cname() : "nullptr"); } else { - linkUp = surf::LinkImpl::byName(link_id); - linkDown = linkUp; + xbt_assert(not gw, "set_netpoint: Netpoint (%s) isn't netzone, gateway must be nullptr", netpoint->get_cname()); } - privateLinks_.insert({position, {linkUp, linkDown}}); -} -} -} + // setting gateway + set_gateway(position, gw); + + if (set_callbacks.loopback) { + s4u::Link* loopback = set_callbacks.loopback(get_iface(), dims, position); + xbt_assert(loopback, "set_loopback: Invalid loopback link (nullptr) for element %lu", position); + set_loopback(); + add_private_link_at(node_pos(netpoint->id()), {loopback->get_impl(), loopback->get_impl()}); + *lb_link = loopback; + } + + if (set_callbacks.limiter) { + s4u::Link* limiter = set_callbacks.limiter(get_iface(), dims, position); + xbt_assert(limiter, "set_limiter: Invalid limiter link (nullptr) for element %lu", position); + set_limiter(); + add_private_link_at(node_pos_with_loopback(netpoint->id()), {limiter->get_impl(), limiter->get_impl()}); + *limiter_link = limiter; + } + *node_netpoint = netpoint; } + +} // namespace simgrid::kernel::routing