Hi Samuel,
please show this little example:
hwloc_obj_t core = hwloc_get_obj_by_type(topology, HWLOC_OBJ_MACHINE, 0);
int return_value = hwloc_get_last_cpu_location(topology, core->cpuset, HWLOC_CPUBIND_THREAD);
and now in "core->cpuset" I get the new cpuset bitmap, where process/threads runs. Is it right?
2011/8/10 Samuel Thibault
<samuel.thibault@inria.fr>
Gabriele Fatigati, le Wed 10 Aug 2011 09:35:19 +0200, a écrit :
> these lines, doesn't works:
>
> set = hwloc_bitmap_alloc();
> hwloc_get_cpubind(topology, &set, 0);
>
> hwloc_get_cpubind() crash, because I have to pass set, not &set i suppose.
Right, of course.
> I think hwloc_get_last_cpu_location() is used coupled with hwloc_get_cpubind()?
Well, they don't _have_ to. They provide a different information. It
just happens that get_last_cpu_location usually returns an index withing
what get_cpubind returns ("always", if the binding is strict).
--
Ing. Gabriele Fatigati
HPC specialist
SuperComputing Applications and Innovation Department
Via Magnanelli 6/3, Casalecchio di Reno (BO) Italy
www.cineca.it Tel: +39 051 6171722
g.fatigati [AT]
cineca.it