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Subject: [hwloc-announce] Hardware locality (hwloc) v1.6rc2 released
From: Brice Goglin (Brice.Goglin_at_[hidden])
Date: 2012-11-20 09:25:28

I just released 1.6rc2 (mirrors will update soon).

Changes since rc1 are minor:
* Fix the filtering of I/O objects when importing XML topologies
* Some documentation additions about synthetic topologies
* Misc doc updates
* A minor build fix


Le 13/11/2012 13:44, Brice Goglin a écrit :
> The Hardware Locality (hwloc) team is pleased to announce the first
> release candidate for v1.6:
> v1.6rc1 is the first milestone of a major feature release. It brings
> a significant rework of the core which eases the combining of multiple
> topology discovery sources, and future additions of new sources.
> Some components may also now be built and loaded as separate plugins,
> which should make distribution packagers' life easier.
> Aside of this core rework, we have the usual set of small API additions
> (one may now export/import its own custom private data to XML), new
> command-line tools (hwloc-annotate), new command-line options, some
> small discovery improvements.
> They are also a couple bug fixes that were waiting for a v1.5.2 release,
> that may or may not ever exist.
> Please test it, and feel free to pass by the Inria booth at SC12
> (#1209) to discuss all this and/or report problems.
> --
> Brice
> Version 1.6.0
> -------------
> * Major changes
> + Reorganize the backend infrastructure to support dynamic selection
> of components and dynamic loading of plugins. For details, see the
> new documentation section Components and plugins.
> - The HWLOC_COMPONENTS variable lets one replace the default discovery
> components.
> - Dynamic loading of plugins may be enabled with --enable-plugins
> (except on AIX and Windows). It will build libxml2 and libpci
> support as separated modules. This helps reducing the dependencies
> of the core hwloc library when distributed as a binary package.
> * Backends
> + Add CPUModel detection on Darwin and x86/FreeBSD.
> Thanks to Robin Scher for providing ways to implement this.
> + The x86 backend now adds CPUModel info attributes to socket objects
> created by other backends that do not natively support this attribute.
> + Fix detection on FreeBSD in case of cpuset restriction. Thanks to
> Sebastian Kuzminsky for reporting the problem.
> * XML
> + Add hwloc_topology_set_userdata_import/export_callback(),
> hwloc_export_obj_userdata() and _userdata_base64() to let
> applications specify how to save/restore the custom data they placed
> in the userdata private pointer field of hwloc objects.
> * Tools
> + Add hwloc-annotate program to add string info attributes to XML
> topologies.
> + Add --pid-cmd to hwloc-ps to append the output of a command to each
> PID line. May be used for showing Open MPI process ranks, see the
> hwloc-ps(1) manpage for details.
> + hwloc-bind now exits with an error if binding fails; the executable
> is not launched unless binding suceeeded or --force was given.
> + Add --quiet to hwloc-calc and hwloc-bind to hide non-fatal error
> messages.
> + Fix command-line pid support in windows tools.
> + All programs accept --verbose as a synonym to -v.
> * Misc
> + Fix some DIR descriptor leaks on Linux.
> + Fix I/O device lists when some were filtered out after a XML import.
> + Add missing Backend string info on Solaris in most cases.
> + When merging objects with HWLOC_IGNORE_TYPE_KEEP_STRUCTURE or
> lstopo --merge, compare object types before deciding which one of two
> identical object to remove (e.g. keep sockets in favor of caches).
> + Add some GUID- and LID-related info attributes to OpenFabrics
> OS devices.
> + Only add CPUType socket attributes on Solaris/Sparc. Other cases
> don't report reliable information (Solaris/x86), and a replacement
> is available as the Architecture string info in the Machine object.
> + Document object attributes and string infos in a new Attributes
> section in the documentation.