#include "xbt/sysdep.h"
#include "surf/surf.h"
-XBT_LOG_NEW_DEFAULT_SUBCATEGORY(sd_workstation, sd,
- "Logging specific to SimDag (workstation)");
-
/* Creates a storage and registers it in SD.
*/
SD_storage_t __SD_storage_create(void *surf_storage, void *data)
xbt_free(s);
}
-/**
- * \brief Returns the workstation list
- *
- * Use sg_host_count() to know the array size.
- *
- * \return an array of \ref sg_host_t containing all workstations
- * \remark The workstation order in the returned array is generally different from the workstation creation/declaration order in the XML platform (we use a hash table internally).
- * \see sg_host_count()
- */
-const sg_host_t *sg_host_list(void) {
- xbt_assert(sg_host_count() > 0, "There is no workstation!");
-
- if (sd_global->host_list == NULL) /* this is the first time the function is called */
- sd_global->host_list = (sg_host_t*)xbt_dynar_to_array(sg_hosts_as_dynar());
-
- return sd_global->host_list;
-}
-
-/** @brief Displays debugging informations about a workstation */
-void sg_host_dump(sg_host_t ws)
-{
- xbt_dict_t props;
- xbt_dict_cursor_t cursor=NULL;
- char *key,*data;
-
- XBT_INFO("Displaying workstation %s", sg_host_get_name(ws));
- XBT_INFO(" - speed: %.0f", ws->speed());
- XBT_INFO(" - available speed: %.2f", sg_host_get_available_speed(ws));
- props = sg_host_get_properties(ws);
-
- if (!xbt_dict_is_empty(props)){
- XBT_INFO(" - properties:");
-
- xbt_dict_foreach(props,cursor,key,data) {
- XBT_INFO(" %s->%s",key,data);
- }
- }
-}
-
-/**
- * \brief Returns the route between two workstations
+/** @brief Returns the route between two workstations
*
* Use SD_route_get_size() to know the array size.
*
- * \param src a workstation
- * \param dst another workstation
- * \return a new array of \ref SD_link_t representing the route between these two workstations
+ * \param src a host
+ * \param dst another host
+ * \return an array of the \ref SD_link_t composing the route
* \see SD_route_get_size(), SD_link_t
*/
-double sg_host_speed(sg_host_t workstation)
-{
- return workstation->speed();
-}
-int sg_host_core_count(sg_host_t workstation) {
- return workstation->core_count();
-}
-
-
-double sg_host_computation_time(sg_host_t workstation,
- double flops_amount)
-{
- xbt_assert(flops_amount >= 0,
- "flops_amount must be greater than or equal to zero");
- return flops_amount / workstation->speed();
-}
-
-xbt_dict_t sg_host_get_mounted_storage_list(sg_host_t workstation){
- return workstation->extension<simgrid::surf::Host>()->getMountedStorageList();
-}
-
-xbt_dynar_t sg_host_get_attached_storage_list(sg_host_t workstation){
- return surf_host_get_attached_storage_list(workstation);
-}
-
-const SD_link_t *SD_route_get_list(sg_host_t src,
- sg_host_t dst)
+const SD_link_t *SD_route_get_list(sg_host_t src, sg_host_t dst)
{
xbt_dynar_t surf_route;
+ SD_link_t* list;
void *surf_link;
unsigned int cpt;
+ surf_route = surf_host_model_get_route((surf_host_model_t)surf_host_model,
+ src, dst);
- if (sd_global->recyclable_route == NULL) {
- /* first run */
- sd_global->recyclable_route = xbt_new(SD_link_t, sg_link_count());
- }
-
- surf_route = surf_host_model_get_route((surf_host_model_t)surf_host_model, src, dst);
-
+ list = xbt_new(SD_link_t, xbt_dynar_length(surf_route));
xbt_dynar_foreach(surf_route, cpt, surf_link) {
- sd_global->recyclable_route[cpt] = (SD_link_t)surf_link;
+ list[cpt] = (SD_link_t)surf_link;
}
- return sd_global->recyclable_route;
+ return list;
}
/**
int SD_route_get_size(sg_host_t src, sg_host_t dst)
{
return xbt_dynar_length(surf_host_model_get_route(
- (surf_host_model_t)surf_host_model, src, dst));
+ (surf_host_model_t)surf_host_model, src, dst));
}
-/**
- * \brief Returns the total speed of a workstation
- *
- * \param workstation a workstation
- * \return the total speed of this workstation
- * \see sg_host_get_available_speed()
- */
-/**
- * \brief Returns the amount of cores of a workstation
- *
- * \param workstation a workstation
- * \return the amount of cores of this workstation
- */
-/**
- * \brief Returns an approximative estimated time for the given computation amount on a workstation
- *
- * \param workstation a workstation
- * \param flops_amount the computation amount you want to evaluate (in flops)
- * \return an approximative estimated computation time for the given computation amount on this workstation (in seconds)
- */
/**
* \brief Returns the latency of the route between two workstations.
*
*/
double SD_route_get_bandwidth(sg_host_t src, sg_host_t dst)
{
-
- const SD_link_t *links;
- int nb_links;
- double bandwidth;
- double min_bandwidth;
- int i;
-
- links = SD_route_get_list(src, dst);
- nb_links = SD_route_get_size(src, dst);
- min_bandwidth = -1.0;
-
- for (i = 0; i < nb_links; i++) {
- bandwidth = sg_link_bandwidth(links[i]);
- if (bandwidth < min_bandwidth || min_bandwidth == -1.0)
- min_bandwidth = bandwidth;
- }
-
- return min_bandwidth;
-}
-
-/**
- * \brief Returns an approximative estimated time for the given
- * communication amount between two workstations
- *
- * \param src the first workstation
- * \param dst the second workstation
- * \param bytes_amount the communication amount you want to evaluate (in bytes)
- * \return an approximative estimated communication time for the given bytes amount
- * between the workstations (in seconds)
- */
-double SD_route_get_communication_time(sg_host_t src,
- sg_host_t dst,
- double bytes_amount)
-{
-
-
- /* total time = latency + transmission time of the slowest link
- transmission time of a link = communication amount / link bandwidth */
-
- const SD_link_t *links;
xbt_dynar_t route = NULL;
- int nb_links;
- double bandwidth, min_bandwidth;
+ unsigned int cpt;
double latency = 0;
- int i;
-
- xbt_assert(bytes_amount >= 0, "bytes_amount must be greater than or equal to zero");
-
-
- if (bytes_amount == 0.0)
- return 0.0;
+ double bandwidth;
+ double min_bandwidth = -1.0;
+ SD_link_t link;
routing_platf->getRouteAndLatency(src->pimpl_netcard, dst->pimpl_netcard,
&route, &latency);
- links = SD_route_get_list(src, dst);
- nb_links = SD_route_get_size(src, dst);
- min_bandwidth = -1.0;
-
- for (i = 0; i < nb_links; i++) {
- bandwidth = sg_link_bandwidth(links[i]);
+ xbt_dynar_foreach(route, cpt, link){
+ bandwidth = sg_link_bandwidth(link);
if (bandwidth < min_bandwidth || min_bandwidth == -1.0)
min_bandwidth = bandwidth;
}
- return latency + (bytes_amount / min_bandwidth);
+ return min_bandwidth;
}
-/**
- * \brief Return the list of mounted storages on a workstation.
- *
- * \param workstation a workstation
- * \return a dynar containing all mounted storages on the workstation
- */
-/**
- * \brief Return the list of mounted storages on a workstation.
- *
- * \param workstation a workstation
- * \return a dynar containing all mounted storages on the workstation
- */
+
/**
* \brief Returns the host name the storage is attached to
*