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 #define HOST_PEER(peername) bprintf("peer_%s", peername)
13 #define ROUTER_PEER(peername) bprintf("router_%s", peername)
14 #define LINK_PEER(peername) bprintf("link_%s", peername)
16 static XBT_INLINE double euclidean_dist_comp(int index, xbt_dynar_t src, xbt_dynar_t dst) {
17 double src_coord, dst_coord;
19 src_coord = xbt_dynar_get_as(src, index, double);
20 dst_coord = xbt_dynar_get_as(dst, index, double);
22 return (src_coord-dst_coord)*(src_coord-dst_coord);
27 AsVivaldi::AsVivaldi(const char *name)
31 void AsVivaldi::getRouteAndLatency(NetCard *src, NetCard *dst, sg_platf_route_cbarg_t route, double *lat)
33 s_surf_parsing_link_up_down_t info;
35 XBT_DEBUG("vivaldi_get_route_and_latency from '%s'[%d] '%s'[%d]",
36 src->getName(), src->getId(), dst->getName(), dst->getId());
38 if(src->getRcType() == SURF_NETWORK_ELEMENT_AS) {
39 char *src_name = ROUTER_PEER(src->getName());
40 char *dst_name = ROUTER_PEER(dst->getName());
41 route->gw_src = (sg_netcard_t) xbt_lib_get_or_null(as_router_lib, src_name, ROUTING_ASR_LEVEL);
42 route->gw_dst = (sg_netcard_t) xbt_lib_get_or_null(as_router_lib, dst_name, ROUTING_ASR_LEVEL);
47 double euclidean_dist;
48 xbt_dynar_t src_ctn, dst_ctn;
49 char *tmp_src_name, *tmp_dst_name;
51 if(src->getRcType() == SURF_NETWORK_ELEMENT_HOST){
52 tmp_src_name = HOST_PEER(src->getName());
54 if ((int)xbt_dynar_length(upDownLinks)>src->getId()) {
55 info = xbt_dynar_get_as(upDownLinks, src->getId(), s_surf_parsing_link_up_down_t);
56 if(info.link_up) { // link up
57 xbt_dynar_push_as(route->link_list, void*, info.link_up);
59 *lat += static_cast<Link*>(info.link_up)->getLatency();
62 src_ctn = (xbt_dynar_t) simgrid::s4u::Host::by_name_or_create(tmp_src_name)->extension(COORD_HOST_LEVEL);
63 if (src_ctn == nullptr)
64 src_ctn = (xbt_dynar_t) simgrid::s4u::Host::by_name_or_create(src->getName())->extension(COORD_HOST_LEVEL);
66 else if(src->getRcType() == SURF_NETWORK_ELEMENT_ROUTER || src->getRcType() == SURF_NETWORK_ELEMENT_AS){
67 tmp_src_name = ROUTER_PEER(src->getName());
68 src_ctn = (xbt_dynar_t) xbt_lib_get_or_null(as_router_lib, tmp_src_name, COORD_ASR_LEVEL);
74 if(dst->getRcType() == SURF_NETWORK_ELEMENT_HOST){
75 tmp_dst_name = HOST_PEER(dst->getName());
77 if ((int)xbt_dynar_length(upDownLinks)>dst->getId()) {
78 info = xbt_dynar_get_as(upDownLinks, dst->getId(), s_surf_parsing_link_up_down_t);
79 if(info.link_down) { // link down
80 xbt_dynar_push_as(route->link_list,void*,info.link_down);
82 *lat += static_cast<Link*>(info.link_down)->getLatency();
85 dst_ctn = (xbt_dynar_t) simgrid::s4u::Host::by_name_or_create(tmp_dst_name)
86 ->extension(COORD_HOST_LEVEL);
87 if (dst_ctn == nullptr)
88 dst_ctn = (xbt_dynar_t) simgrid::s4u::Host::by_name_or_create(dst->getName())
89 ->extension(COORD_HOST_LEVEL);
91 else if(dst->getRcType() == SURF_NETWORK_ELEMENT_ROUTER || dst->getRcType() == SURF_NETWORK_ELEMENT_AS){
92 tmp_dst_name = ROUTER_PEER(dst->getName());
93 dst_ctn = (xbt_dynar_t) xbt_lib_get_or_null(as_router_lib, tmp_dst_name, COORD_ASR_LEVEL);
99 xbt_assert(src_ctn,"No coordinate found for element '%s'",tmp_src_name);
100 xbt_assert(dst_ctn,"No coordinate found for element '%s'",tmp_dst_name);
104 euclidean_dist = sqrt (euclidean_dist_comp(0,src_ctn,dst_ctn)+euclidean_dist_comp(1,src_ctn,dst_ctn))
105 + fabs(xbt_dynar_get_as(src_ctn, 2, double))+fabs(xbt_dynar_get_as(dst_ctn, 2, double));
108 XBT_DEBUG("Updating latency %f += %f",*lat,euclidean_dist);
109 *lat += euclidean_dist / 1000.0; //From .ms to .s
113 int AsVivaldi::parsePU(NetCard *elm) {
114 XBT_DEBUG("Load process unit \"%s\"", elm->getName());
115 xbt_dynar_push_as(p_indexNetworkElm, sg_netcard_t, elm);
116 return xbt_dynar_length(p_indexNetworkElm)-1;