Resource id function missing?

[GuillaumeMercier]

In the current version of QV, there is no function ro retrieve/query the indices of the resources
a process/threads is bound to (unless I'm mistaken).
Should we introduce one or let the user rely on hwloc?
Note that qv_scope_get_device_id does not provide this functionality since the index
is one of its argument.

[eleon]

At the moment, I can't think how this would help users. Do you have an example/use case where this is needed?

[GuillaumeMercier]

Two points:
1- An analogy with MPI programming: how would you do if you had only MPI_Comm_size and no MPI_Comm_rank?
2- This information can be used to compute colors for splitting. It would help the user to design more flexible mapping policy.