Re: [hwloc-devel] towards PLPA-like API in 1.0

2009-11-11 Thread Samuel Thibault
Brice Goglin, le Mon 09 Nov 2009 15:18:11 +0100, a écrit : > I don't think we need SET_CPUBIND since (from what I understand) it > would be equivalent to SET_PROC_CPUBIND | SET_THREAD_CPUBIND. Being able to set oneself's cpuset is not the same as being able to set the cpuset of other processes or

[hwloc-devel] Create success (hwloc r1.0a1r1335)

2009-11-11 Thread MPI Team
Creating nightly hwloc snapshot SVN tarball was a success. Snapshot: hwloc 1.0a1r1335 Start time: Wed Nov 11 21:01:02 EST 2009 End time: Wed Nov 11 21:02:54 EST 2009 Your friendly daemon, Cyrador

Re: [hwloc-devel] towards PLPA-like API in 1.0

2009-11-11 Thread Samuel Thibault
Brice Goglin, le Thu 05 Nov 2009 17:22:15 +0100, a écrit : > + int hwloc_plpa_sched_getaffinity(pid_t pid, hwloc_cpuset_t cpuset); > > It's just a hwloc_get_cpubind(), but we don't have it since it would not > be supported on all OS. But I think we should add it anyway. Being discussed in

Re: [hwloc-devel] Pgcc issues fixed?

2009-11-11 Thread Samuel Thibault
Jeff Squyres, le Mon 09 Nov 2009 08:05:47 -0500, a écrit : > Fair enough. What about if we have an AC check for > pthread_setaffinity_np and use that if it exists, and if it doesn't > use the PLPA way? Err, remember that pthread_setaffinity_np alone doesn't permit to bind another process,

Re: [hwloc-devel] [hwloc-svn] svn:hwloc r1333

2009-11-11 Thread Samuel Thibault
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

Re: [hwloc-devel] [hwloc-svn] svn:hwloc r1333

2009-11-11 Thread Samuel Thibault
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

Re: [hwloc-devel] [hwloc-svn] svn:hwloc r1333

2009-11-11 Thread Brice Goglin
Samuel Thibault wrote: > bgog...@osl.iu.edu, le Wed 11 Nov 2009 11:33:31 -0500, a écrit : > >> +/** \brief Bind thread given by \p pid to CPU set \p cpuset. >> + * >> + * \note This function now manipulates hwloc cpusets. >> + */ >> +static __inline int >>

Re: [hwloc-devel] [hwloc-svn] svn:hwloc r1333

2009-11-11 Thread Samuel Thibault
bgog...@osl.iu.edu, le Wed 11 Nov 2009 11:33:31 -0500, a écrit : > +/** \brief Bind thread given by \p pid to CPU set \p cpuset. > + * > + * \note This function now manipulates hwloc cpusets. > + */ > +static __inline int > +hwloc_plpa_sched_setaffinity(hwloc_topology_t topology, hwloc_pid_t pid,

Re: [hwloc-devel] [hwloc-svn] svn:hwloc r1333

2009-11-11 Thread Samuel Thibault
bgog...@osl.iu.edu, le Wed 11 Nov 2009 11:33:31 -0500, a écrit : > + /* FIXME: should be SET_THREAD_CPUBIND given with a pid */ > + if (flags & HWLOC_SUPPORT_SET_PROC_CPUBIND) > +*api_type = HWLOC_PLPA_PROBE_OK; > + else > +*api_type = HWLOC_PLPA_PROBE_NOT_SUPPORTED; > + return 0; > +}

Re: [hwloc-devel] [hwloc-svn] svn:hwloc r1330

2009-11-11 Thread Samuel Thibault
Jeff Squyres, le Wed 11 Nov 2009 05:54:00 -0800, a écrit : > How about HWLOC_UNSUPPORTED_SYS? I don't think it's a good idea to make it a compile-time thing rather than a runtime-time thing: if we expose to the application the fact that the OS on which the application is building is not