add doc for the prev commit

doc/doxygen/chapters/api/scheduling_contexts.doxy

@@ -129,6 +129,12 @@ blocked)
 \ingroup API_Scheduling_Contexts
 Return 1 if the worker belongs to the context and 0 otherwise
 
+\fn unsigned starpu_sched_ctx_worker_get_id(unsigned sched_ctx_id)
+\ingroup API_Scheduling_Contexts
+Return the workerid if the worker belongs to the context and -1 otherwise.
+If the thread calling this function is not a worker the function returns -1
+as it calls the function \ref starpu_worker_get_id()
+
 \fn unsigned starpu_sched_ctx_overlapping_ctxs_on_worker(int workerid)
 \ingroup API_Scheduling_Contexts
 Check if a worker is shared between several contexts

doc/doxygen/chapters/api/scheduling_policy.doxy

@@ -162,4 +162,9 @@ Whether \ref STARPU_PREFETCH was set
 \ingroup API_Scheduling_Policy
 Prefetch data for a given task on a given node
 
+\fn void starpu_sched_ctx_worker_shares_tasks_lists (int workerid, int sched_ctx_id)
+\ingroup API_Scheduling_Policy
+The scheduling policies indicates if the worker may pop tasks from the list of other workers
+or if there is a central list with task for all the workers
+
 */

doc/doxygen/chapters/environment_variables.doxy

@@ -599,8 +599,15 @@ the speed of the other contexts, but only by the the value that a context should
 By default the values of the speed of the workers is printed during the execution
 of the application. If the value 1 is given to this environment variable this printing
 is not done.
-
 </dd>
 
+<dt>SC_HYPERVISOR_LAZY_RESIZE</dt>
+<dd>
+\anchor SC_HYPERVISOR_LAZY_RESIZE
+\addindex __env__SC_HYPERVISOR_LAZY_RESIZE
+By default the hypervisor resizes the contexts in a lazy way, that is workers are firstly added to a new context
+before removing them from the previous one. Once this workers are clearly taken into account 
+into the new context (a task was poped there) we remove them from the previous one. However if the application
+would like that the change in the distribution of workers should change right away this variable should be set to 0
 </dl>
 */