1 /* Copyright (c) 2006-2016. 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 "simgrid/s4u/host.hpp"
9 #include "simdag_private.hpp"
10 #include "src/surf/HostImpl.hpp"
11 #include "surf/surf.h"
13 /** @brief Returns the route between two workstations
15 * Use SD_route_get_size() to know the array size.
18 * \param dst another host
19 * \return an array of the \ref SD_link_t composing the route
20 * \see SD_route_get_size(), SD_link_t
22 SD_link_t *SD_route_get_list(sg_host_t src, sg_host_t dst)
24 std::vector<Link*> route;
25 src->routeTo(dst, &route, nullptr);
28 SD_link_t* list = xbt_new(SD_link_t, route.size());
29 for (auto link : route) {
37 * \brief Returns the number of links on the route between two workstations
39 * \param src a workstation
40 * \param dst another workstation
41 * \return the number of links on the route between these two workstations
42 * \see SD_route_get_list()
44 int SD_route_get_size(sg_host_t src, sg_host_t dst)
46 std::vector<Link*> route;
47 src->routeTo(dst, &route, nullptr);
48 int size = route.size();
53 * \brief Returns the latency of the route between two workstations.
55 * \param src the first workstation
56 * \param dst the second workstation
57 * \return the latency of the route between the two workstations (in seconds)
58 * \see SD_route_get_bandwidth()
60 double SD_route_get_latency(sg_host_t src, sg_host_t dst)
63 std::vector<Link*> route;
64 src->routeTo(dst, &route, &latency);
70 * \brief Returns the bandwidth of the route between two workstations,
71 * i.e. the minimum link bandwidth of all between the workstations.
73 * \param src the first workstation
74 * \param dst the second workstation
75 * \return the bandwidth of the route between the two workstations (in bytes/second)
76 * \see SD_route_get_latency()
78 double SD_route_get_bandwidth(sg_host_t src, sg_host_t dst)
80 double min_bandwidth = -1.0;
82 std::vector<Link*> route;
83 src->routeTo(dst, &route, nullptr);
85 for (auto link : route) {
86 double bandwidth = sg_link_bandwidth(link);
87 if (bandwidth < min_bandwidth || min_bandwidth < 0.0)
88 min_bandwidth = bandwidth;