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 "src/simdag/simdag_private.h"
8 #include <simgrid/s4u/host.hpp>
9 #include "src/surf/HostImplem.hpp"
10 #include "surf/surf.h"
12 /** @brief Returns the route between two workstations
14 * Use SD_route_get_size() to know the array size.
17 * \param dst another host
18 * \return an array of the \ref SD_link_t composing the route
19 * \see SD_route_get_size(), SD_link_t
21 SD_link_t *SD_route_get_list(sg_host_t src, sg_host_t dst)
25 xbt_dynar_t surf_route = NULL;
26 routing_platf->getRouteAndLatency(src->pimpl_netcard, dst->pimpl_netcard, &surf_route, NULL);
28 SD_link_t *list = xbt_new(SD_link_t, xbt_dynar_length(surf_route));
29 xbt_dynar_foreach(surf_route, cpt, surf_link) {
30 list[cpt] = (SD_link_t)surf_link;
36 * \brief Returns the number of links on the route between two workstations
38 * \param src a workstation
39 * \param dst another workstation
40 * \return the number of links on the route between these two workstations
41 * \see SD_route_get_list()
43 int SD_route_get_size(sg_host_t src, sg_host_t dst)
45 xbt_dynar_t surf_route = NULL;
46 routing_platf->getRouteAndLatency(src->pimpl_netcard, dst->pimpl_netcard, &surf_route, NULL);
47 return xbt_dynar_length(surf_route);
51 * \brief Returns the latency of the route between two workstations.
53 * \param src the first workstation
54 * \param dst the second workstation
55 * \return the latency of the route between the two workstations (in seconds)
56 * \see SD_route_get_bandwidth()
58 double SD_route_get_latency(sg_host_t src, sg_host_t dst)
60 xbt_dynar_t route = NULL;
63 routing_platf->getRouteAndLatency(src->pimpl_netcard, dst->pimpl_netcard, &route, &latency);
69 * \brief Returns the bandwidth of the route between two workstations,
70 * i.e. the minimum link bandwidth of all between the workstations.
72 * \param src the first workstation
73 * \param dst the second workstation
74 * \return the bandwidth of the route between the two workstations (in bytes/second)
75 * \see SD_route_get_latency()
77 double SD_route_get_bandwidth(sg_host_t src, sg_host_t dst)
79 xbt_dynar_t route = NULL;
82 double min_bandwidth = -1.0;
85 routing_platf->getRouteAndLatency(src->pimpl_netcard, dst->pimpl_netcard, &route, &latency);
87 xbt_dynar_foreach(route, cpt, link){
88 double bandwidth = sg_link_bandwidth(link);
89 if (bandwidth < min_bandwidth || min_bandwidth == -1.0)
90 min_bandwidth = bandwidth;