On Nov 11, 2009, at 4:22 PM, Samuel Thibault wrote:
Another way to go is in hwloc_plpa_sched_setaffinity put in
#ifdef HWLOC_LINUX_SYS some code that calls the internal
hwloc_linux_set_tid_cpubind (with a strong comment that nobody else
should call it), so that
- existing linux plpa users can have the same behavior, but we can
document here that calling hwloc_plpa_sched_setaffinity with a pid
different than zero portably means something only for single-
threaded
processes.
- non-linux plpa users are restricted to what really is portable.
PLPA = Linux only. :-)
Per my prior mail, remember that some (many?) apps don't care about
portability.
- we don't have to cripple the hwloc interface (i.e. document that we
accept non-portable input) just for the linuxish interface.
The PLPA interface for specifying specific PIDs wasn't just for
threads -- it really was for getting/setting the affinity of other
processes. E.g., htop uses PLPA for this purpose (htop.sf.net).
Do other OS's not support that?
--
Jeff Squyres
jsquy...@cisco.com
