I'm using release 1.6.1 and, as I said, it is the only weird behaviour
I'm experiencing.
the test program is actually very straight and easy: I load and
initialise the topology, perform some checks on current bindings and the
try to get the current thread's location, so that I can bind it to the
nodeset it belongs to:
hwloc_topology_init(&topo);
hwloc_topology_load(topo);
...
hwloc_bitmap_t cpuset = hwloc_bitmap_alloc();
hwloc_bitmap_t nodeset = hwloc_bitmap_alloc();
char *str;
...
if( hwloc_get_last_cpu_location(topology, cpuset, HWLOC_CPUBIND_THREAD) < 0 )
abort();
hwloc_bitmap_asprintf(&str, cpuset);
printf("current thread running on cpuset %s\n", str);
free(str);
hwloc_cpuset_from_nodeset(topology, cpuset, nodeset);
if( hwloc_set_membind_nodeset(topology, nodeset, HWLOC_MEMBIND_BIND,
HWLOC_MEMBIND_THREAD) < 0 )
abort();
...
if( hwloc_get_last_cpu_location(topology, cpuset, HWLOC_CPUBIND_THREAD) < 0 )
abort();
hwloc_bitmap_asprintf(&str, cpuset);
printf("current thread running on cpuset %s\n", str);
free(str);
hwloc_cpuset_from_nodeset(topology, cpuset, nodeset);
if( hwloc_set_membind_nodeset(topology, nodeset, HWLOC_MEMBIND_BIND,
HWLOC_MEMBIND_THREAD) < 0 )
abort();
...
I omitted some out-of-the-scope parts, but this is mostly it: is there
something wrong?
Fabio
On 05/03/13 18:25, Brice Goglin wrote:
Hello Fabio,
Which hwloc release are you using ? get_last_cpu_location() was only
added in hwloc v1.2. It has always been available since then, even on
when not supported (it will return -1 with errno=ENOSYS in this case).
If this doesn't help, can you send your test program?
Brice
Le 05/03/2013 18:01, Fabio Tordini a écrit :
Hello,
I'm experiencing a problem using the function
'hwloc_get_last_cpu_location(...)': when compiling i first get a
warning about an implicit declaration of the function, and then it
gives an "undefined reference" error.
Everything else works just fine and I was thinking whether I have to
link some other libraries or perform some other actions in order to be
able to use the function.
The tests I'm executing are run on a x86_64 GNU/Linux machine, and as
far as I know that function should be totally supported on Linux systems.
thanks,
Fabio
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Fabio Tordini
PhD Candidate
Computer Science Department
University of Torino
