src/surf/surf_routing_vivaldi.cpp

   1 #include "surf_routing_vivaldi.hpp"
   2
   3 extern "C" {
   4   XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route_vivaldi, surf, "Routing part of surf");
   5 }
   6
   7 static XBT_INLINE double euclidean_dist_comp(int index, xbt_dynar_t src, xbt_dynar_t dst) {
   8   double src_coord, dst_coord;
   9
  10   src_coord = xbt_dynar_get_as(src, index, double);
  11   dst_coord = xbt_dynar_get_as(dst, index, double);
  12
  13   return (src_coord-dst_coord)*(src_coord-dst_coord);
  14 }
  15
  16 AS_t model_vivaldi_create(void)
  17 {
  18   return new AsVivaldi();
  19 }
  20
  21 void AsVivaldi::getRouteAndLatency(RoutingEdgePtr src, RoutingEdgePtr dst, sg_platf_route_cbarg_t route, double *lat)
  22 {
  23   s_surf_parsing_link_up_down_t info;
  24
  25   XBT_DEBUG("vivaldi_get_route_and_latency from '%s'[%d] '%s'[%d]",
  26                   src->p_name, src->m_id, dst->p_name, dst->m_id);
  27
  28   if(src->p_rcType == SURF_NETWORK_ELEMENT_AS) {
  29     route->gw_src = (sg_routing_edge_t) xbt_lib_get_or_null(as_router_lib, ROUTER_PEER(src->p_name), ROUTING_ASR_LEVEL);
  30     route->gw_dst = (sg_routing_edge_t) xbt_lib_get_or_null(as_router_lib, ROUTER_PEER(dst->p_name), ROUTING_ASR_LEVEL);
  31   }
  32
  33   double euclidean_dist;
  34   xbt_dynar_t src_ctn, dst_ctn;
  35   char *tmp_src_name, *tmp_dst_name;
  36
  37   if(src->p_rcType == SURF_NETWORK_ELEMENT_HOST){
  38     tmp_src_name = HOST_PEER(src->p_name);
  39
  40     if(p_linkUpDownList){
  41       info = xbt_dynar_get_as(p_linkUpDownList, src->m_id, s_surf_parsing_link_up_down_t);
  42       if(info.link_up) { // link up
  43         xbt_dynar_push_as(route->link_list, void*, info.link_up);
  44         if (lat)
  45           *lat += dynamic_cast<NetworkCm02LinkPtr>(static_cast<ResourcePtr>(info.link_up))->getLatency();
  46       }
  47     }
  48     src_ctn = (xbt_dynar_t) xbt_lib_get_or_null(host_lib, tmp_src_name, COORD_HOST_LEVEL);
  49     if(!src_ctn ) src_ctn = (xbt_dynar_t) xbt_lib_get_or_null(host_lib, src->p_name, COORD_HOST_LEVEL);
  50   }
  51   else if(src->p_rcType == SURF_NETWORK_ELEMENT_ROUTER || src->p_rcType == SURF_NETWORK_ELEMENT_AS){
  52     tmp_src_name = ROUTER_PEER(src->p_name);
  53     src_ctn = (xbt_dynar_t) xbt_lib_get_or_null(as_router_lib, tmp_src_name, COORD_ASR_LEVEL);
  54   }
  55   else{
  56     THROW_IMPOSSIBLE;
  57   }
  58
  59   if(dst->p_rcType == SURF_NETWORK_ELEMENT_HOST){
  60     tmp_dst_name = HOST_PEER(dst->p_name);
  61
  62     if(p_linkUpDownList){
  63       info = xbt_dynar_get_as(p_linkUpDownList, dst->m_id, s_surf_parsing_link_up_down_t);
  64       if(info.link_down) { // link down
  65         xbt_dynar_push_as(route->link_list,void*,info.link_down);
  66         if (lat)
  67           *lat += dynamic_cast<NetworkCm02LinkPtr>(static_cast<ResourcePtr>(info.link_down))->getLatency();
  68       }
  69     }
  70     dst_ctn = (xbt_dynar_t) xbt_lib_get_or_null(host_lib, tmp_dst_name, COORD_HOST_LEVEL);
  71     if(!dst_ctn ) dst_ctn = (xbt_dynar_t) xbt_lib_get_or_null(host_lib, dst->p_name, COORD_HOST_LEVEL);
  72   }
  73   else if(dst->p_rcType == SURF_NETWORK_ELEMENT_ROUTER || dst->p_rcType == SURF_NETWORK_ELEMENT_AS){
  74     tmp_dst_name = ROUTER_PEER(dst->p_name);
  75     dst_ctn = (xbt_dynar_t) xbt_lib_get_or_null(as_router_lib, tmp_dst_name, COORD_ASR_LEVEL);
  76   }
  77   else{
  78     THROW_IMPOSSIBLE;
  79   }
  80
  81   xbt_assert(src_ctn,"No coordinate found for element '%s'",tmp_src_name);
  82   xbt_assert(dst_ctn,"No coordinate found for element '%s'",tmp_dst_name);
  83   free(tmp_src_name);
  84   free(tmp_dst_name);
  85
  86   euclidean_dist = sqrt (euclidean_dist_comp(0,src_ctn,dst_ctn)+euclidean_dist_comp(1,src_ctn,dst_ctn))
  87                       + fabs(xbt_dynar_get_as(src_ctn, 2, double))+fabs(xbt_dynar_get_as(dst_ctn, 2, double));
  88
  89   if (lat){
  90     XBT_DEBUG("Updating latency %f += %f",*lat,euclidean_dist);
  91     *lat += euclidean_dist / 1000.0; //From .ms to .s
  92   }
  93 }
  94
  95 int AsVivaldi::parsePU(RoutingEdgePtr elm) {
  96   XBT_DEBUG("Load process unit \"%s\"", elm->p_name);
  97   xbt_dynar_push_as(p_indexNetworkElm, sg_routing_edge_t, elm);
  98   return xbt_dynar_length(p_indexNetworkElm)-1;
  99 }