1 /* Copyright (c) 2013-2015. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
7 #include "surf_routing_vivaldi.hpp"
8 #include "network_interface.hpp"
10 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_route_vivaldi, surf, "Routing part of surf");
12 static XBT_INLINE double euclidean_dist_comp(int index, xbt_dynar_t src, xbt_dynar_t dst) {
13 double src_coord, dst_coord;
15 src_coord = xbt_dynar_get_as(src, index, double);
16 dst_coord = xbt_dynar_get_as(dst, index, double);
18 return (src_coord-dst_coord)*(src_coord-dst_coord);
21 AS_t model_vivaldi_create(void)
23 return new simgrid::surf::AsVivaldi();
29 void AsVivaldi::getRouteAndLatency(RoutingEdge *src, RoutingEdge *dst, sg_platf_route_cbarg_t route, double *lat)
31 s_surf_parsing_link_up_down_t info;
33 XBT_DEBUG("vivaldi_get_route_and_latency from '%s'[%d] '%s'[%d]",
34 src->getName(), src->getId(), dst->getName(), dst->getId());
36 if(src->getRcType() == SURF_NETWORK_ELEMENT_AS) {
37 char *src_name = ROUTER_PEER(src->getName());
38 char *dst_name = ROUTER_PEER(dst->getName());
39 route->gw_src = (sg_routing_edge_t) xbt_lib_get_or_null(as_router_lib, src_name, ROUTING_ASR_LEVEL);
40 route->gw_dst = (sg_routing_edge_t) xbt_lib_get_or_null(as_router_lib, dst_name, ROUTING_ASR_LEVEL);
45 double euclidean_dist;
46 xbt_dynar_t src_ctn, dst_ctn;
47 char *tmp_src_name, *tmp_dst_name;
49 if(src->getRcType() == SURF_NETWORK_ELEMENT_HOST){
50 tmp_src_name = HOST_PEER(src->getName());
53 info = xbt_dynar_get_as(p_linkUpDownList, src->getId(), s_surf_parsing_link_up_down_t);
54 if(info.link_up) { // link up
55 xbt_dynar_push_as(route->link_list, void*, info.link_up);
57 *lat += static_cast<Link*>(info.link_up)->getLatency();
60 src_ctn = (xbt_dynar_t) simgrid::Host::by_name_or_create(tmp_src_name)->facet(COORD_HOST_LEVEL);
61 if (src_ctn == nullptr)
62 src_ctn = (xbt_dynar_t) simgrid::Host::by_name_or_create(src->getName())->facet(COORD_HOST_LEVEL);
64 else if(src->getRcType() == SURF_NETWORK_ELEMENT_ROUTER || src->getRcType() == SURF_NETWORK_ELEMENT_AS){
65 tmp_src_name = ROUTER_PEER(src->getName());
66 src_ctn = (xbt_dynar_t) xbt_lib_get_or_null(as_router_lib, tmp_src_name, COORD_ASR_LEVEL);
72 if(dst->getRcType() == SURF_NETWORK_ELEMENT_HOST){
73 tmp_dst_name = HOST_PEER(dst->getName());
76 info = xbt_dynar_get_as(p_linkUpDownList, dst->getId(), s_surf_parsing_link_up_down_t);
77 if(info.link_down) { // link down
78 xbt_dynar_push_as(route->link_list,void*,info.link_down);
80 *lat += static_cast<Link*>(info.link_down)->getLatency();
83 dst_ctn = (xbt_dynar_t) simgrid::Host::by_name_or_create(tmp_dst_name)
84 ->facet(COORD_HOST_LEVEL);
85 if (dst_ctn == nullptr)
86 dst_ctn = (xbt_dynar_t) simgrid::Host::by_name_or_create(dst->getName())
87 ->facet(COORD_HOST_LEVEL);
89 else if(dst->getRcType() == SURF_NETWORK_ELEMENT_ROUTER || dst->getRcType() == SURF_NETWORK_ELEMENT_AS){
90 tmp_dst_name = ROUTER_PEER(dst->getName());
91 dst_ctn = (xbt_dynar_t) xbt_lib_get_or_null(as_router_lib, tmp_dst_name, COORD_ASR_LEVEL);
97 xbt_assert(src_ctn,"No coordinate found for element '%s'",tmp_src_name);
98 xbt_assert(dst_ctn,"No coordinate found for element '%s'",tmp_dst_name);
102 euclidean_dist = sqrt (euclidean_dist_comp(0,src_ctn,dst_ctn)+euclidean_dist_comp(1,src_ctn,dst_ctn))
103 + fabs(xbt_dynar_get_as(src_ctn, 2, double))+fabs(xbt_dynar_get_as(dst_ctn, 2, double));
106 XBT_DEBUG("Updating latency %f += %f",*lat,euclidean_dist);
107 *lat += euclidean_dist / 1000.0; //From .ms to .s
111 int AsVivaldi::parsePU(RoutingEdge *elm) {
112 XBT_DEBUG("Load process unit \"%s\"", elm->getName());
113 xbt_dynar_push_as(p_indexNetworkElm, sg_routing_edge_t, elm);
114 return xbt_dynar_length(p_indexNetworkElm)-1;