+++ /dev/null
-/* Copyright (c) 2014-2016. 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/surf/AsClusterDragonfly.hpp"
-#include "src/surf/network_interface.hpp"
-#include "src/surf/xml/platf.hpp" // FIXME: move that back to the parsing area
-
-#include <boost/algorithm/string/split.hpp>
-#include <boost/algorithm/string/classification.hpp>
-
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route_cluster_dragonfly, surf_route_cluster, "Dragonfly Routing part of surf");
-
-
-
-namespace simgrid {
-namespace routing {
-
-AsClusterDragonfly::AsClusterDragonfly(const char*name)
- : AsCluster(name) {
-}
-
-AsClusterDragonfly::~AsClusterDragonfly() {
-
- if(this->routers_!=nullptr){
- unsigned int i;
- for (i=0; i<this->numGroups_*this->numChassisPerGroup_*this->numBladesPerChassis_;i++)
- delete(routers_[i]);
- xbt_free(routers_);
- }
-}
-
-unsigned int *AsClusterDragonfly::rankId_to_coords(int rankId)
-{
-
- //coords : group, chassis, blade, node
- unsigned int *coords = (unsigned int *) malloc(4 * sizeof(unsigned int));
- coords[0] = rankId/ (numChassisPerGroup_*numBladesPerChassis_*numNodesPerBlade_);
- rankId=rankId%(numChassisPerGroup_*numBladesPerChassis_*numNodesPerBlade_);
- coords[1] = rankId/ (numBladesPerChassis_*numNodesPerBlade_);
- rankId=rankId%(numBladesPerChassis_*numNodesPerBlade_);
- coords[2] = rankId/ numNodesPerBlade_;
- coords[3]=rankId%numNodesPerBlade_;
-
- return coords;
-}
-
-void AsClusterDragonfly::parse_specific_arguments(sg_platf_cluster_cbarg_t cluster) {
- std::vector<std::string> parameters;
- std::vector<std::string> tmp;
- boost::split(parameters, cluster->topo_parameters, boost::is_any_of(";"));
-
- // TODO : we have to check for zeros and negative numbers, or it might crash
- if (parameters.size() != 4){
- surf_parse_error("Dragonfly are defined by the number of groups, chassiss per groups, blades per chassis, nodes per blade");
- }
-
- // Blue network : number of groups, number of links between each group
- boost::split(tmp, parameters[0], boost::is_any_of(","));
- if(tmp.size() != 2) {
- surf_parse_error("Dragonfly topologies are defined by 3 levels with 2 elements each, and one with one element");
- }
-
- this->numGroups_=xbt_str_parse_int(tmp[0].c_str(), "Invalid number of groups: %s");
- this->numLinksBlue_=xbt_str_parse_int(tmp[1].c_str(), "Invalid number of links for the blue level: %s");
-
- // Black network : number of chassiss/group, number of links between each router on the black network
- boost::split(tmp, parameters[1], boost::is_any_of(","));
- if(tmp.size() != 2) {
- surf_parse_error("Dragonfly topologies are defined by 3 levels with 2 elements each, and one with one element");
- }
-
- this->numChassisPerGroup_=xbt_str_parse_int(tmp[0].c_str(), "Invalid number of groups: %s");
- this->numLinksBlack_=xbt_str_parse_int(tmp[1].c_str(), "Invalid number of links for the black level: %s");
-
-
- // Green network : number of blades/chassis, number of links between each router on the green network
- boost::split(tmp, parameters[2], boost::is_any_of(","));
- if(tmp.size() != 2) {
- surf_parse_error("Dragonfly topologies are defined by 3 levels with 2 elements each, and one with one element");
- }
-
- this->numBladesPerChassis_=xbt_str_parse_int(tmp[0].c_str(), "Invalid number of groups: %s");
- this->numLinksGreen_=xbt_str_parse_int(tmp[1].c_str(), "Invalid number of links for the green level: %s");
-
-
- // The last part of topo_parameters should be the number of nodes per blade
- this->numNodesPerBlade_ = xbt_str_parse_int(parameters[3].c_str(), "Last parameter is not the amount of nodes per blade: %s");
- this->cluster_ = cluster;
-}
-
-/*
-* Generate the cluster once every node is created
-*/
-void AsClusterDragonfly::seal(){
- if(this->numNodesPerBlade_ == 0) {
- return;
- }
-
- this->generateRouters();
- this->generateLinks();
-}
-
-DragonflyRouter::DragonflyRouter(int group, int chassis, int blade){
- this->group_=group;
- this->chassis_=chassis;
- this->blade_=blade;
-}
-
-DragonflyRouter::~DragonflyRouter(){
- if(this->myNodes_!=nullptr)
- xbt_free(myNodes_);
- if(this->greenLinks_!=nullptr)
- xbt_free(greenLinks_);
- if(this->blackLinks_!=nullptr)
- xbt_free(blackLinks_);
- if(this->blueLinks_!=nullptr)
- xbt_free(blueLinks_);
-}
-
-
-void AsClusterDragonfly::generateRouters() {
-
-unsigned int i, j, k;
-
-this->routers_=(DragonflyRouter**)xbt_malloc0(this->numGroups_*this->numChassisPerGroup_*this->numBladesPerChassis_*sizeof(DragonflyRouter*));
-
-for(i=0;i<this->numGroups_;i++){
- for(j=0;j<this->numChassisPerGroup_;j++){
- for(k=0;k<this->numBladesPerChassis_;k++){
- DragonflyRouter* router = new DragonflyRouter(i,j,k);
- this->routers_[i*this->numChassisPerGroup_*this->numBladesPerChassis_+j*this->numBladesPerChassis_+k]=router;
- }
- }
-}
-
-}
-
-
-void AsClusterDragonfly::createLink(char* id, int numlinks, Link** linkup, Link** linkdown){
- *linkup=nullptr;
- *linkdown=nullptr;
- s_sg_platf_link_cbarg_t linkTemplate;
- memset(&linkTemplate, 0, sizeof(linkTemplate));
- linkTemplate.bandwidth = this->cluster_->bw * numlinks;
- linkTemplate.latency = this->cluster_->lat;
- linkTemplate.policy = this->cluster_->sharing_policy; // sthg to do with that ?
- linkTemplate.id = id;
- sg_platf_new_link(&linkTemplate);
- XBT_DEBUG("Generating link %s", id);
- Link* link;
- std::string tmpID;
- if (this->cluster_->sharing_policy == SURF_LINK_FULLDUPLEX) {
- tmpID = std::string(linkTemplate.id) + "_UP";
- link = Link::byName(tmpID.c_str());
- *linkup = link; // check link?
- tmpID = std::string(linkTemplate.id) + "_DOWN";
- link = Link::byName(tmpID.c_str());
- *linkdown = link; // check link ?
- }
- else {
- link = Link::byName(linkTemplate.id);
- *linkup = link;
- *linkdown = link;
- }
-
- free((void*)linkTemplate.id);
-}
-
-
-void AsClusterDragonfly::generateLinks() {
-
- unsigned int i, j, k, l;
- static int uniqueId = 0;
- char* id = nullptr;
- Link* linkup, *linkdown;
-
- unsigned int numRouters = this->numGroups_*this->numChassisPerGroup_*this->numBladesPerChassis_;
-
- if (this->cluster_->sharing_policy == SURF_LINK_FULLDUPLEX)
- numLinksperLink_=2;
-
-
- //Links from routers to their local nodes.
- for(i=0; i<numRouters;i++){
- //allocate structures
- this->routers_[i]->myNodes_=(Link**)xbt_malloc0(numLinksperLink_*this->numNodesPerBlade_*sizeof(Link*));
- this->routers_[i]->greenLinks_=(Link**)xbt_malloc0(this->numBladesPerChassis_*sizeof(Link*));
- this->routers_[i]->blackLinks_=(Link**)xbt_malloc0(this->numChassisPerGroup_*sizeof(Link*));
-
- for(j=0; j< numLinksperLink_*this->numNodesPerBlade_; j+=numLinksperLink_){
- id = bprintf("local_link_from_router_%d_to_node_%d_%d", i, j/numLinksperLink_, uniqueId);
- this->createLink(id, 1, &linkup, &linkdown);
- if (this->cluster_->sharing_policy == SURF_LINK_FULLDUPLEX) {
- this->routers_[i]->myNodes_[j] = linkup;
- this->routers_[i]->myNodes_[j+1] = linkdown;
- }
- else {
- this->routers_[i]->myNodes_[j] = linkup;
- }
- uniqueId++;
- }
- }
-
- //Green links from routers to same chassis routers - alltoall
- for(i=0; i<this->numGroups_*this->numChassisPerGroup_;i++){
- for(j=0; j<this->numBladesPerChassis_;j++){
- for(k=j+1;k<this->numBladesPerChassis_;k++){
- id = bprintf("green_link_in_chassis_%d_between_routers_%d_and_%d_%d", i%numChassisPerGroup_, j, k, uniqueId);
- this->createLink(id, this->numLinksGreen_, &linkup, &linkdown);
- this->routers_[i*numBladesPerChassis_+j]->greenLinks_[k] = linkup;
- this->routers_[i*numBladesPerChassis_+k]->greenLinks_[j] = linkdown;
- uniqueId++;
- }
- }
- }
-
- //Black links from routers to same group routers - alltoall
- for(i=0; i<this->numGroups_;i++){
- for(j=0; j<this->numChassisPerGroup_;j++){
- for(k=j+1;k<this->numChassisPerGroup_;k++){
- for(l=0;l<this->numBladesPerChassis_;l++){
- id = bprintf("black_link_in_group_%d_between_chassis_%d_and_%d_blade_%d_%d", i, j, k,l, uniqueId);
- this->createLink(id, this->numLinksBlack_,&linkup, &linkdown);
- this->routers_[i*numBladesPerChassis_*numChassisPerGroup_+j*numBladesPerChassis_+l]->blackLinks_[k] = linkup;
- this->routers_[i*numBladesPerChassis_*numChassisPerGroup_+k*numBladesPerChassis_+l]->blackLinks_[j] = linkdown;
- uniqueId++;
- }
- }
- }
- }
-
-
- //Blue links betweeen groups - Not all routers involved, only one per group is linked to others. Let's say router n of each group is linked to group n.
-//FIXME: in reality blue links may be attached to several different routers
- for(i=0; i<this->numGroups_;i++){
- for(j=i+1; j<this->numGroups_;j++){
- unsigned int routernumi=i*numBladesPerChassis_*numChassisPerGroup_+j;
- unsigned int routernumj=j*numBladesPerChassis_*numChassisPerGroup_+i;
- this->routers_[routernumi]->blueLinks_=(Link**)xbt_malloc0(sizeof(Link*));
- this->routers_[routernumj]->blueLinks_=(Link**)xbt_malloc0(sizeof(Link*));
- id = bprintf("blue_link_between_group_%d_and_%d_routers_%d_and_%d_%d", i, j, routernumi,routernumj, uniqueId);
- this->createLink(id, this->numLinksBlue_, &linkup, &linkdown);
- this->routers_[routernumi]->blueLinks_[0] = linkup;
- this->routers_[routernumj]->blueLinks_[0] = linkdown;
- uniqueId++;
- }
- }
-}
-
-
-void AsClusterDragonfly::getRouteAndLatency(NetCard * src, NetCard * dst, sg_platf_route_cbarg_t route, double *latency) {
-
- //Minimal routing version.
- // TODO : non-minimal random one, and adaptive ?
-
- if (dst->isRouter() || src->isRouter())
- return;
-
- XBT_VERB("dragonfly_get_route_and_latency from '%s'[%d] to '%s'[%d]",
- src->name(), src->id(), dst->name(), dst->id());
-
- if ((src->id() == dst->id()) && hasLoopback_) {
- s_surf_parsing_link_up_down_t info = xbt_dynar_get_as(privateLinks_, src->id() * linkCountPerNode_, s_surf_parsing_link_up_down_t);
-
- route->link_list->push_back(info.linkUp);
- if (latency)
- *latency += info.linkUp->getLatency();
- return;
- }
-
- unsigned int *myCoords, *targetCoords;
- myCoords = rankId_to_coords(src->id());
- targetCoords = rankId_to_coords(dst->id());
- XBT_DEBUG("src : %u group, %u chassis, %u blade, %u node", myCoords[0], myCoords[1], myCoords[2], myCoords[3]);
- XBT_DEBUG("dst : %u group, %u chassis, %u blade, %u node", targetCoords[0], targetCoords[1], targetCoords[2], targetCoords[3]);
-
- DragonflyRouter* myRouter = routers_[myCoords[0]*(numChassisPerGroup_*numBladesPerChassis_)+myCoords[1] * numBladesPerChassis_+myCoords[2]];
- DragonflyRouter* targetRouter = routers_[targetCoords[0]*(numChassisPerGroup_*numBladesPerChassis_)+targetCoords[1] *numBladesPerChassis_ +targetCoords[2]];
- DragonflyRouter* currentRouter=myRouter;
-
- //node->router local link
- route->link_list->push_back(myRouter->myNodes_[myCoords[3]*numLinksperLink_]);
- if(latency) {
- *latency += myRouter->myNodes_[myCoords[3]*numLinksperLink_]->getLatency();
- }
-
- if (hasLimiter_) { // limiter for sender
- s_surf_parsing_link_up_down_t info;
- info = xbt_dynar_get_as(privateLinks_, src->id() * linkCountPerNode_ + hasLoopback_, s_surf_parsing_link_up_down_t);
- route->link_list->push_back(info.linkUp);
- }
-
- if(targetRouter!=myRouter){
-
- //are we on a different group ?
- if(targetRouter->group_ != currentRouter->group_){
- //go to the router of our group connected to this one.
- if(currentRouter->blade_!=targetCoords[0]){
- //go to the nth router in our chassis
- route->link_list->push_back(currentRouter->greenLinks_[targetCoords[0]]);
- if(latency) {
- *latency += currentRouter->greenLinks_[targetCoords[0]]->getLatency();
- }
- currentRouter=routers_[myCoords[0]*(numChassisPerGroup_*numBladesPerChassis_)+myCoords[1] * numBladesPerChassis_+targetCoords[0]];
- }
-
- if(currentRouter->chassis_!=0){
- //go to the first chassis of our group
- route->link_list->push_back(currentRouter->blackLinks_[0]);
- if(latency) {
- *latency += currentRouter->blackLinks_[0]->getLatency();
- }
- currentRouter=routers_[myCoords[0]*(numChassisPerGroup_*numBladesPerChassis_)+targetCoords[0]];
- }
-
- //go to destination group - the only optical hop
- route->link_list->push_back(currentRouter->blueLinks_[0]);
- if(latency) {
- *latency += currentRouter->blueLinks_[0]->getLatency();
- }
- currentRouter=routers_[targetCoords[0]*(numChassisPerGroup_*numBladesPerChassis_)+myCoords[0]];
- }
-
-
- //same group, but same blade ?
- if(targetRouter->blade_ != currentRouter->blade_){
- route->link_list->push_back(currentRouter->greenLinks_[targetCoords[2]]);
- if(latency) {
- *latency += currentRouter->greenLinks_[targetCoords[2]]->getLatency();
- }
- currentRouter=routers_[targetCoords[0]*(numChassisPerGroup_*numBladesPerChassis_)+targetCoords[2]];
- }
-
- //same blade, but same chassis ?
- if(targetRouter->chassis_ != currentRouter->chassis_){
- route->link_list->push_back(currentRouter->blackLinks_[targetCoords[1]]);
- if(latency) {
- *latency += currentRouter->blackLinks_[targetCoords[1]]->getLatency();
- }
- currentRouter=routers_[targetCoords[0]*(numChassisPerGroup_*numBladesPerChassis_)+targetCoords[1]*numBladesPerChassis_+targetCoords[2]];
- }
- }
-
- if (hasLimiter_) { // limiter for receiver
- s_surf_parsing_link_up_down_t info;
- info = xbt_dynar_get_as(privateLinks_, dst->id() * linkCountPerNode_ + hasLoopback_, s_surf_parsing_link_up_down_t);
- route->link_list->push_back(info.linkUp);
- }
-
- //router->node local link
- route->link_list->push_back(targetRouter->myNodes_[targetCoords[3]*numLinksperLink_+numLinksperLink_-1]);
- if(latency) {
- *latency += targetRouter->myNodes_[targetCoords[3]*numLinksperLink_+numLinksperLink_-1]->getLatency();
- }
-
- xbt_free(myCoords);
- xbt_free(targetCoords);
-
-
-}
- }
-}
