-
-
-
-
namespace simgrid {
-namespace surf {
+namespace routing {
AsClusterDragonfly::AsClusterDragonfly(const char*name)
: AsCluster(name) {
AsClusterDragonfly::~AsClusterDragonfly() {
- if(this->routers_!=NULL){
- int i;
+ if(this->routers_!=nullptr){
+ unsigned int i;
for (i=0; i<this->numGroups_*this->numChassisPerGroup_*this->numBladesPerChassis_;i++)
delete(routers_[i]);
xbt_free(routers_);
}
DragonflyRouter::~DragonflyRouter(){
- if(this->myNodes_!=NULL)
+ if(this->myNodes_!=nullptr)
xbt_free(myNodes_);
- if(this->greenLinks_!=NULL)
+ if(this->greenLinks_!=nullptr)
xbt_free(greenLinks_);
- if(this->blackLinks_!=NULL)
+ if(this->blackLinks_!=nullptr)
xbt_free(blackLinks_);
- if(this->blueLinks_!=NULL)
+ if(this->blueLinks_!=nullptr)
xbt_free(blueLinks_);
}
}
-void AsClusterDragonfly::createLink(char* id, Link** linkup, Link** linkdown){
- *linkup=NULL;
- *linkdown=NULL;
+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;
+ 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;
void AsClusterDragonfly::generateLinks() {
- unsigned int i, j, k, l,m;
+ unsigned int i, j, k, l;
static int uniqueId = 0;
- char* id = NULL;
+ char* id = nullptr;
Link* linkup, *linkdown;
- int numRouters = this->numGroups_*this->numChassisPerGroup_*this->numBladesPerChassis_;
+ unsigned int numRouters = this->numGroups_*this->numChassisPerGroup_*this->numBladesPerChassis_;
- int numLinksperLink=1;
if (this->cluster_->sharing_policy == SURF_LINK_FULLDUPLEX)
- numLinksperLink=2;
+ 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->numLinksGreen_*this->numBladesPerChassis_*sizeof(Link*));
- this->routers_[i]->blackLinks_=(Link**)xbt_malloc0(this->numLinksBlack_*this->numChassisPerGroup_*sizeof(Link*));
+ 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/2, uniqueId);
- this->createLink(id, &linkup, &linkdown);
+ 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;
for(i=0; i<this->numGroups_*this->numChassisPerGroup_;i++){
for(j=0; j<this->numBladesPerChassis_;j++){
for(k=j+1;k<this->numBladesPerChassis_;k++){
- for(l=0;l<this->numLinksGreen_;l++){
- id = bprintf("green_link_in_chassis_%d_between_routers_%d_and_%d_%d", i%numChassisPerGroup_, j, k, uniqueId);
- this->createLink(id, &linkup, &linkdown);
- this->routers_[i*numBladesPerChassis_+j]->greenLinks_[k*this->numLinksGreen_+l] = linkup;
- this->routers_[i*numBladesPerChassis_+k]->greenLinks_[j*this->numLinksGreen_+l] = linkdown;
- uniqueId++;
- }
+ 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++;
}
}
}
for(j=0; j<this->numChassisPerGroup_;j++){
for(k=j+1;k<this->numChassisPerGroup_;k++){
for(l=0;l<this->numBladesPerChassis_;l++){
- for(m=0;m<this->numLinksBlack_;m++){
-
- id = bprintf("black_link_in_group_%d_between_chassis_%d_and_%d_blade_%d_%d", i, j, k,l, uniqueId);
- this->createLink(id, &linkup, &linkdown);
- this->routers_[i*numBladesPerChassis_*numChassisPerGroup_+j*numBladesPerChassis_+l]->blackLinks_[k*this->numLinksBlack_+m] = linkup;
- this->routers_[i*numBladesPerChassis_*numChassisPerGroup_+k*numBladesPerChassis_+l]->blackLinks_[j*this->numLinksBlack_+m] = linkdown;
- uniqueId++;
- }
+ 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: this limits the number of groups
-
+ //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(this->numLinksBlue_*sizeof(Link*));
- this->routers_[routernumj]->blueLinks_=(Link**)xbt_malloc0(this->numLinksBlue_*sizeof(Link*));
- for(m=0;m<this->numLinksBlue_;m++){
+ 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, &linkup, &linkdown);
- this->routers_[routernumi]->blueLinks_[m] = linkup;
- this->routers_[routernumj]->blueLinks_[m] = linkdown;
+ 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;
- //TODO:loopback and limiters
- XBT_VERB("dragonfly_get_route_and_latency from '%s'[%d] to '%s'[%d]",
+
+ 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);
+ 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 (lat)
-// *lat += info.linkUp->getLatency();
-// return;
-// }
+ route->link_list->push_back(info.linkUp);
+ if (latency)
+ *latency += info.linkUp->getLatency();
+ return;
+ }
unsigned int *myCoords, *targetCoords;
myCoords = rankId_to_coords(src->id());
DragonflyRouter* currentRouter=myRouter;
//node->router local link
- route->link_list->push_back(myRouter->myNodes_[myCoords[3]]);
+ route->link_list->push_back(myRouter->myNodes_[myCoords[3]*numLinksperLink_]);
if(latency) {
- *latency += myRouter->myNodes_[myCoords[3]]->getLatency();
+ *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 (src->id() == dst->id()){
-return;
-}
if(targetRouter!=myRouter){
//are we on a different 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
-//TODO : randomize used green link
- route->link_list->push_back(currentRouter->greenLinks_[targetCoords[0]*numLinksGreen_]);
+ route->link_list->push_back(currentRouter->greenLinks_[targetCoords[0]]);
if(latency) {
- *latency += currentRouter->greenLinks_[targetCoords[0]*numLinksGreen_]->getLatency();
+ *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
-//TODO : randomize used black link
route->link_list->push_back(currentRouter->blackLinks_[0]);
if(latency) {
*latency += currentRouter->blackLinks_[0]->getLatency();
currentRouter=routers_[myCoords[0]*(numChassisPerGroup_*numBladesPerChassis_)+targetCoords[0]];
}
-//TODO : randomize used blue link
//go to destination group - the only optical hop
route->link_list->push_back(currentRouter->blueLinks_[0]);
if(latency) {
}
- //same group, but same chassis ?
- if(targetRouter->chassis_ != currentRouter->chassis_){
-//TODO : randomize used black link
- route->link_list->push_back(currentRouter->blackLinks_[targetCoords[1]*numLinksBlack_]);
+ //same group, but same blade ?
+ if(targetRouter->blade_ != currentRouter->blade_){
+ route->link_list->push_back(currentRouter->greenLinks_[targetCoords[2]]);
if(latency) {
- *latency += currentRouter->blackLinks_[targetCoords[1]*numLinksBlack_]->getLatency();
+ *latency += currentRouter->greenLinks_[targetCoords[2]]->getLatency();
}
- currentRouter=routers_[targetCoords[0]*(numChassisPerGroup_*numBladesPerChassis_)+currentRouter->chassis_*numBladesPerChassis_+currentRouter->blade_];
+ currentRouter=routers_[targetCoords[0]*(numChassisPerGroup_*numBladesPerChassis_)+targetCoords[2]];
}
- //same chassis, but same blade ?
- if(targetRouter->blade_ != currentRouter->blade_){
-//TODO : randomize used green link
- route->link_list->push_back(currentRouter->greenLinks_[targetCoords[2]*numLinksGreen_]);
+ //same blade, but same chassis ?
+ if(targetRouter->chassis_ != currentRouter->chassis_){
+ route->link_list->push_back(currentRouter->blackLinks_[targetCoords[1]]);
if(latency) {
- *latency += currentRouter->greenLinks_[targetCoords[2]*numLinksGreen_]->getLatency();
+ *latency += currentRouter->blackLinks_[targetCoords[1]]->getLatency();
}
currentRouter=routers_[targetCoords[0]*(numChassisPerGroup_*numBladesPerChassis_)+targetCoords[1]*numBladesPerChassis_+targetCoords[2]];
- xbt_assert(currentRouter==targetRouter, "You've got routed into oblivion. Oops");
}
-
}
+ 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]]);
+ route->link_list->push_back(targetRouter->myNodes_[targetCoords[3]*numLinksperLink_+numLinksperLink_-1]);
if(latency) {
- *latency += targetRouter->myNodes_[targetCoords[3]]->getLatency();
+ *latency += targetRouter->myNodes_[targetCoords[3]*numLinksperLink_+numLinksperLink_-1]->getLatency();
}
xbt_free(myCoords);
