Brice Goglin, le Thu 12 Nov 2009 00:31:48 +0100, a écrit : > The problem is that our hwloc/Linux does not implement > set_proc_cpubind() so far.
But it can implement one that assumes that the target process is singlethreaded, i.e. in hwloc_set_proc_cpubind distinguish between HWLOC_CPUBIND_PROCESS being set or not, or by just passing the policy flag as such to OS hooks. > * document in hwloc.h that it may bind a single thread if the > application (wrongly) passes a tid I'd really rather avoid even mentioning tids in the hwloc documentation except saying "don't use that, it's not portable, don't even ask, you'd be horrified". > * document that hwloc_plpa_sched_setaffinity now works on processes > instead of pids and that application should use thread_t and > set_thread_cpubind for local threads Or pass 0 to express "the current thread", which was already valid for plpa_sched_setaffinity, and _is_ portable (and should already have been the only thing that truly portable applications use). > * maybe return -ENOSYS on Linux if STRICT is given? I guess you mean return 0 if STRICT is not given, and mean "it's not strict because we haven't actually done it for all the threads, or even not at all"? I'd really rather not lie like this. Samuel