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File hwloc.changes of Package hwloc
------------------------------------------------------------------- Wed Dec 27 19:01:59 UTC 2023 - Dirk Müller <dmueller@suse.com> - update to 2.10.0: Heterogeneous Memory core improvements + Better heuristics to identify the subtype of memory such as HBM, DRAM, NVM, CXL-DRAM, etc. + Build memory tiers, i.e. sets of NUMA nodes with the same subtype and similar performance. - NUMA node tier ranks are exposed in the new MemoryTier info attribute (starts from 0 for highest bandwidth tier). + Add hwloc_topology_free_group_object() to discard a Group created by hwloc_topology_alloc_group_object(). + Fix cpukinds on NVIDIA Grace to report identical cores even if they actually have very small frequency differences. + Add CXLDevice attributes to CXL DAX objects and NUMA nodes to show which PCI device implements which window. + Ignore buggy memory-side caches and memory attributes when fake NUMA emulation is enabled on the Linux kernel command-line. + Add more info attributes in MemoryModule Misc objects, + Get CPUModel and CPUFamily info attributes on LoongArch platforms. + Add support for new AMD CPUID leaf 0x80000026 for better detection of Core Complex and Die on Zen4 processors. + Improve Zhaoxin CPU topology detection. + Input locations and many command-line options (e.g. hwloc-calc -I -N -H, lstopo --only) now accept filters such as "NUMA[HBM]" so that only objects are that type and subtype are considered. - NUMA[tier=1] is also accepted for selecting NUMA nodes depending on their MemoryTier info attribute. + Add --object-output to hwloc-calc to report the type as a prefix to object indexes, e.g. Core:2 instead of 2 in the output of -I. + hwloc-info --ancestor and --descendants now accepts kinds of objects instead of single types. - The new --first option only shows the first matching object. + Add --children-of-pid to hwloc-ps to show a hierarchy of processes. + Add --misc-from to lstopo to add Misc objects described in a file. - To be combined with the new hwloc-ps --lstopo-misc for a customizable lstopo --top replacement. ------------------------------------------------------------------- Wed Oct 18 11:26:32 UTC 2023 - Dominique Leuenberger <dimstar@opensuse.org> - Update to version 2.9.3: * Handle Linux glibc allocation errors in binding routines (CVE-2022-47022). * Fix hwloc-calc when searching objects on heterogeneous memory platforms, * Fix hwloc_get_next_child() when there are some memory-side caches. * Don't crash if the topology is empty because Linux cgroups are wrong. * Improve some hwloc-bind warnings in case of command-line parsing errors. * Many documentation improvements all over the place, including: + hwloc_topology_restrict() and hwloc_topology_insert_group() may reorder children, causing the logical indexes of objects to change. ------------------------------------------------------------------- Sun Jul 16 08:09:41 UTC 2023 - Dirk Müller <dmueller@suse.com> - update to 2.9.2: * Don't forget L3i when defining filters for multiple levels of caches with hwloc_topology_set_cache/icache_types_filter(). * Fix object total_memory after hwloc_topology_insert_group_object(). * Fix the (non-yet) exporting in synthetic description for complex memory hierarchies with memory-side caches, etc. * Fix some default size attributes when building synthetic topologies. * Fix size units in hwloc-annotate. * Improve bitmap reallocation error management in many functions. * Documentation improvements ------------------------------------------------------------------- Tue Jun 20 20:22:08 UTC 2023 - Dirk Müller <dmueller@suse.com> - update to 2.9.1: * Fix a failed assertion in hwloc_topology_restrict() when some NUMA nodes are removed because of HWLOC_RESTRICT_FLAG_REMOVE_CPULESS but no PUs are. * Mark HPE Cray Slingshot NICs with subtype "Slingshot". ------------------------------------------------------------------- Tue Jun 6 15:13:43 UTC 2023 - Egbert Eich <eich@suse.com> - Readd libXNVCtrl support as an optional plugin. - Add OpenCL support as an optional plugin. - Ship GUI tool in a separate package. This avoids installing undesirable X11 dependencies. ------------------------------------------------------------------- Tue May 9 13:20:12 UTC 2023 - Thomas Blume <thomas.blume@suse.com> - remove header files for feature we don't ship (jsc#PED-4156) These headers do not define an API that is not supported at present and therefore would not cause a failure during build. Still, they define static inline functions which look for HWLOC objects that are only set up by non-supported device scanners. Thus these objects will never be present - even though the relevant hardware is. ------------------------------------------------------------------- Thu Jan 26 14:53:18 UTC 2023 - Callum Farmer <gmbr3@opensuse.org> - Remove libXNVCtrl support as it brings too many X dependencies (bsc#1207545) ------------------------------------------------------------------- Fri Dec 23 07:53:35 UTC 2022 - Dirk Müller <dmueller@suse.com> - update to 2.9.0: + Expose the memory size of CXL memory devices (Type 3) on Linux. + The LevelZero backend now reports the "XeLinkBandwidth" distance matrix between L0 devices (and subdevices) when available. + Add support for CUDA compute capability up to 9.0. + lstopo now switches to console mode when its output is redirected. Graphical window mode may be forced back with --of window. + hwloc-calc now accepts "numa" in -H, and I/O subtypes such as "gpu" in -I and -N. ------------------------------------------------------------------- Fri Jul 29 17:38:15 UTC 2022 - Callum Farmer <gmbr3@opensuse.org> - Add libXNVCtrl support on TW ------------------------------------------------------------------- Mon Jul 11 07:47:23 UTC 2022 - Dirk Müller <dmueller@suse.com> - update to 2.8.0: * API + Add HWLOC_TOPOLOGY_FLAG_NO_DISTANCES, _NO_MEMATTRS and _NO_CPUKINDS to reduce the overhead when unneeded. + Add separate Read/Write Bandwidth/Latency memory attributes and implement them on Linux. * Backends + NUMA nodes may now have a subtype such as DRAM, HBM, SPM, or NVM on heterogeneous memory platforms on Linux. - Add DAXType and DAXParent attributes on Linux to tell where a DAX device or its corresponding NUMA node come from (SPM for Specific-Purpose or NVM for Non-Volatile Memory). + Detect heterogeneous caches in hybrid CPUs on MacOS X, thanks to Paul Bone for the help. + Max frequencies are not ignored in Linux cpukinds anymore (they were ignored in hwloc 2.7.0), but they may be slightly adjusted to avoid reporting hybrid CPUs because Intel Turbo Boost Max 3.0. - See the documentation of environment variable HWLOC_CPUKINDS_MAXFREQ. + Hardwire the PCI locality of HPE Cray EX235a nodes. * Tools + lstopo and other tools may now load Linux and x86 cpuid topology files from a tarball. + lstopo may now replace the P# and L# index prefixes with custom strings thanks to --os-index-prefix and --logical-index-prefix options. * Misc + Add --disable-readme to avoid regenerating the top-level hwloc README file from the documentation. * Bugfix + Use setenv() instead of putenv() - fixes crash in Slurm (bsc#1210227) ------------------------------------------------------------------- Fri Apr 8 16:42:15 UTC 2022 - Dirk Müller <dmueller@suse.com> - update to 2.7.1: * Workaround crashes when virtual machines report incoherent x86 CPUID information about numbers of cores and threads. Thanks to Peter Bense for the report. * Use setenv() instead of putenv() when trying to force enable oneAPI L0 support, to avoid issues with applications that touch the environment, thanks to Josh Hursey for the patch. * Add some warnings at the end of configure when GPU libraries are missing on the system or their path is missing in the environment. * Backends + Add support for NUMA nodes and caches with more than 64 PUs across multiple processor groups on Windows 11 and Windows Server 2022. + Group objects are not created for Windows processor groups anymore, except if HWLOC_WINDOWS_PROCESSOR_GROUP_OBJS=1 in the environment. + Expose "Cluster" group objects on Linux kernel 5.16+ for CPUs that share some internal cache or bus. This can be equivalent to the L2 Cache level on some platforms (e.g. x86) or a specific level between L2 and L3 on others (e.g. ARM Kungpeng 920). Thanks to Jonathan Cameron for the help. - HWLOC_DONT_MERGE_CLUSTER_GROUPS=1 may be set in the environment to prevent these groups from being merged with identical caches, etc. + Improve the oneAPI LevelZero backend: - Expose subdevices such as "ze0.1" inside root OS devices ("ze0") when the hardware contains multiple subdevices. - Add many new attributes to describe device type, and the numbers of slices, subslices, execution units and threads. - Expose the memory information as LevelZeroHBM/DDR/MemorySize infos. + Ignore the max frequencies of cores in Linux cpukinds when the base frequencies are available (to avoid exposing hybrid CPUs when Intel Turbo Boost Max 3.0 gives slightly different max frequencies to CPU cores). - May be reverted by setting HWLOC_CPUKINDS_MAXFREQ=1 in the environment. * Tools + Add --grey and --palette options to switch lstopo to greyscale or white-background-only graphics, or to tune individual colors. * Build + Windows CMake builds now support non-MSVC compilers, detect several features at build time, can build/run tests, etc. Thanks to Michael Hirsch and Alexander Neumann . ------------------------------------------------------------------- Sun Dec 5 21:39:35 UTC 2021 - Dirk Müller <dmueller@suse.com> - update to 2.6.0: * Backends + Expose two cpukinds for energy-efficient cores (icestorm) and high-performance cores (firestorm) on Apple M1 on Mac OS X. + Use sysfs CPU "capacity" to rank hybrid cores by efficiency on Linux when available (mostly on recent ARM platforms for now). + Improve HWLOC_MEMBIND_BIND (without the STRICT flag) on Linux kernel >= 5.15: If more than one node is given, the kernel may now use all of them instead of only the first one before falling back to others. + Expose cache os_index when available on Linux, it may be needed when using resctrl to configure cache partitioning, memory bandwidth monitoring, etc. + Add a "XGMIHops" distances matrix in the RSMI backend for AMD GPU interconnected through XGMI links. + Expose AMD GPU memory information (VRAM and GTT) in the RSMI backend. + Add OS devices such as "bxi0" for Atos/Bull BXI HCAs on Linux. * Tools + lstopo has a better placement algorithm with respect to I/O objects, see --children-order in the manpage for details. + hwloc-annotate may now change object subtypes and cache or memory sizes. * Build + Allow to specify the ROCm installation for building the RSMI backend: - Use a custom installation path if specified with --with-rocm=<dir>. - Use /opt/rocm-<version> if specified with --with-rocm-version=<version> or the ROCM_VERSION environment variable. - Try /opt/rocm if it exists. - See "How do I enable ROCm SMI and select which version to use?" in the FAQ for details. + Add a CMakeLists for Windows under contrib/windows-cmake/ . * Documentation + Add FAQ entry "How do I create a custom heterogeneous and asymmetric topology?" ------------------------------------------------------------------- Sat Jul 17 13:13:07 UTC 2021 - Dirk Müller <dmueller@suse.com> - update to 2.5.0: + Add hwloc/windows.h to query Windows processor groups. + Add hwloc_get_obj_with_same_locality() to convert between objects with same locality, for instance NUMA nodes and Packages, or OS devices within a PCI device. + Add hwloc_distances_transform() to modify distances structures. - hwloc-annotate and lstopo have new distances-transform options. + hwloc_distances_add() is replaced with _add_create() followed by _add_values() and _add_commit(). See hwloc/distances.h for details. + Add topology flags to mitigate binding modifications during hwloc discovery, especially on Windows: - HWLOC_TOPOLOGY_FLAG_RESTRICT_TO_CPUBINDING and _MEMBINDING restrict discovery to PUs and NUMA nodes inside the binding. - HWLOC_TOPOLOGY_FLAG_DONT_CHANGE_BINDING prevents from ever changing the binding during discovery. + Add a levelzero backend for oneAPI L0 devices, exposed as OS devices of subtype "LevelZero" and name such as "ze0". - Add hwloc/levelzero.h for interoperability between converting between L0 API devices and hwloc cpusets or OS devices. + Expose NEC Vector Engine cards on Linux as OS devices of subtype "VectorEngine" and name "ve0", etc. Thanks to Anara Kozhokanova, Tim Cramer and Erich Focht for the help. + Add a NVLinkBandwidth distances structure between NVIDIA GPUs (and POWER processor or NVSwitches) in the NVML backend, and a XGMIBandwidth distances structure between AMD GPUs in the RSMI backends. - See "Topology Attributes: Distances, Memory Attributes and CPU Kinds" in the documentation for details about these new distances. + Add support for NUMA node 0 being offline in Linux, thanks to Jirka Hladky. + Add --with-cuda-version=<version> or look at the CUDA_VERSION environment variable to find the appropriate CUDA pkg-config files. Thanks to Stephen Herbein for the suggestion. - Also add --with-cuda=<dir> to specify the CUDA installation path manually (and its NVML and OpenCL components). Thanks to Andrea Bocci for the suggestion. - See "How do I enable CUDA and select which CUDA version to use?" in the FAQ for details. + lstopo now has a --windows-processor-groups option on Windows. + hwloc-ps now has a --short-name option to avoid long/truncated command path. + hwloc-ps now has a --single-ancestor option to return a single (possibly too large) object where a process is bound. + hwloc-ps --pid-cmd may now query environment variables, including MPI-specific variables to find out process ranks. ------------------------------------------------------------------- Tue Mar 16 21:08:07 UTC 2021 - Dirk Müller <dmueller@suse.com> - update to 2.4.1: * Fix AMD OpenCL device locality when PCI bus or device number >= 128. Thanks to Edgar Leon for reporting the issue. + Applications using any of the following inline functions must be recompiled to get the fix: hwloc_opencl_get_device_pci_busid() hwloc_opencl_get_device_cpuset(), hwloc_opencl_get_device_osdev(). * Fix the ranking of cpukinds on non-Windows systems, thanks to Ivan Kochin for the report. * Fix the insertion of custom Groups after loading the topology, thanks to Scott Hicks. * Add support for CPU0 being offline in Linux, thanks to Garrett Clay. * Fix missing x86 Package and Core objects FreeBSD/NetBSD. Thanks to Thibault Payet and Yuri Victorovich for the report. * Fix the import of very large distances with heterogeneous object types. * Fix a memory leak in the Linux backend, thanks to Perceval Anichini. ------------------------------------------------------------------- Sun Jan 24 16:08:57 UTC 2021 - Dirk Müller <dmueller@suse.com> - update to 2.4.0: + Add hwloc/cpukinds.h for reporting information about hybrid CPUs. - Use Linux cpufreq frequencies to rank cores by efficiency. - Use x86 CPUID hybrid leaf and future Linux kernels sysfs CPU type files to identify Intel Atom and Core cores. - Use the Windows native EfficiencyClass to separate kinds. + Properly handle Linux kernel 5.10+ exposing ACPI HMAT information with knowledge of Generic Initiators. + lstopo has new --cpukinds and --no-cpukinds options for showing CPU kinds or not in textual and graphical modes respectively. + hwloc-calc has a new --cpukind option for filtering PUs by kind. + hwloc-annotate has a new cpukind command for modifying CPU kinds. + Fix hwloc_bitmap_nr_ulongs(), thanks to Norbert Eicker. + Add a documentation section about "Topology Attributes: Distances, Memory Attributes and CPU Kinds". + Silence some spurious warnings in the OpenCL backend and when showing process binding with lstopo --ps. + Add hwloc/memattrs.h for exposing latency/bandwidth information between initiators (CPU sets for now) and target NUMA nodes, typically on heterogeneous platforms. - When available, bandwidths and latencies are read from the ACPI HMAT table exposed by Linux kernel 5.2+. - Attributes may also be customized to expose user-defined performance information. + Add hwloc_get_local_numanode_objs() for listing NUMA nodes that are local to some locality. + The new topology flag HWLOC_TOPOLOGY_FLAG_IMPORT_SUPPORT causes support arrays to be loaded from XML exported with hwloc 2.3+. - hwloc_topology_get_support() now returns an additional "misc" array with feature "imported_support" set when support was imported. + Add hwloc_topology_refresh() to refresh internal caches after modifying the topology and before consulting the topology in a multithread context. + Add a ROCm SMI backend and a hwloc/rsmi.h helper file for getting the locality of AMD GPUs, now exposed as "rsmi" OS devices. Thanks to Mike Li. + Remove POWER device-tree-based topology on Linux, (it was disabled by default since 2.1). + Command-line options for specifying flags now understand comma-separated lists of flag names (substrings). + hwloc-info and hwloc-calc have new --local-memory --local-memory-flags and --best-memattr options for reporting local memory nodes and filtering by memory attributes. + hwloc-bind has a new --best-memattr option for filtering by memory attributes among the memory binding set. + Tools that have a --restrict option may now receive a nodeset or some custom flags for restricting the topology. + lstopo now has a --thickness option for changing line thickness in the graphical output. + Fix lstopo drawing when autoresizing on Windows 10. + Pressing the F5 key in lstopo X11 and Windows graphical/interactive outputs now refreshes the display according to the current topology and binding. + Add a tikz lstopo graphical backend to generate picture easily included into LaTeX documents. Thanks to Clement Foyer. + The default installation path of the Bash completion file has changed to ${datadir}/bash-completion/completions/hwloc. Thanks to Tomasz Kłoczko. ------------------------------------------------------------------- Sat Nov 21 22:02:29 UTC 2020 - Thomas Blume <thomas.blume@suse.com> - move hwloc manpage to main package (bsc#1178802) ------------------------------------------------------------------- Tue Aug 18 15:37:56 UTC 2020 - Dirk Mueller <dmueller@suse.com> - update to 2.2.0: * API + Add hwloc_bitmap_singlify_by_core() to remove SMT from a given cpuset, thanks to Florian Reynier for the suggestion. + Add --enable-32bits-pci-domain to stop ignoring PCI devices with domain >16bits (e.g. 10000:02:03.4). Enabling this option breaks the library ABI. Thanks to Dylan Simon for the help. * Backends + Add support for Linux cgroups v2. + Add NUMA support for FreeBSD. + Add get_last_cpu_location support for FreeBSD. + Remove support for Intel Xeon Phi (MIC, Knights Corner) co-processors. * Tools + Add --uid to filter the hwloc-ps output by uid on Linux. + Add a GRAPHICAL OUTPUT section in the manpage of lstopo. * Misc + Use the native dlopen instead of libltdl, unless --disable-plugin-dlopen is passed at configure time. - install systemd files using systemd macros and register it on install with systemd - build against libnuma on all architectures ------------------------------------------------------------------- Tue Oct 15 08:40:07 UTC 2019 - Thomas Blume <thomas.blume@suse.com> - update to latest released upstream version 2.1.0 (jsc#SLE-8583) * API + Add a new "Die" object (HWLOC_OBJ_DIE) for upcoming x86 processors with multiple dies per package, in the x86 and Linux backends. + Add the new HWLOC_OBJ_MEMCACHE object type for memory-side caches. + Add HWLOC_RESTRICT_FLAG_BYNODESET and _REMOVE_MEMLESS for restricting topologies based on some memory nodes. + Add hwloc_topology_set_components() for blacklisting some components from being enabled in a topology. + Add hwloc_bitmap_nr_ulongs() and hwloc_bitmap_from/to_ulongs() + Improve the API for dealing with disallowed resources + Group objects have a new "dont_merge" attribute to prevent them from being automatically merged with identical parent or children. + Add more distances-related features: - Add hwloc_distances_get_name() to retrieve a string describing what a distances structure contain. - Add hwloc_distances_get_by_name() to retrieve distances structures based on their name. - Add hwloc_distances_release_remove() - Distances may now cover objects of different types with new kind HWLOC_DISTANCES_KIND_HETEROGENEOUS_TYPES. * Backends + Add support for Linux 5.3 new sysfs cpu topology files with Die information. + Add support for Intel v2 Extended Topology Enumeration in the x86 backend. + Improve memory locality on Linux by using HMAT initiators (exposed since Linux 5.2+), and NUMA distances for CPU-less NUMA nodes. + The x86 backend now properly handles offline CPUs. + Detect the locality of NVIDIA GPU OpenCL devices. + Ignore NUMA nodes that correspond to NVIDIA GPU by default. + Add support for IBM S/390 drawers. + Rework the heuristics for discovering KNL Cluster and Memory modes to stop assuming all CPUs are online (required for mOS support). + Ignore NUMA node information from AMD topoext in the x86 backend, unless HWLOC_X86_TOPOEXT_NUMANODES=1 is set in the environment. + Expose Linux DAX devices as hwloc Block OS devices. + Remove support for /proc/cpuinfo-only topology discovery in Linux kernel prior to 2.6.16. + Disable POWER device-tree-based topology on Linux by default. + Discovery components are now divided in phases that may be individually blacklisted. * Tools + lstopo - lstopo factorizes objects by default in the graphical output when there are more than 4 identical children. - Both logical and OS/physical indexes are now displayed by default for PU and NUMA nodes. - The X11 and Windows interactive outputs support many keyboard shortcuts to dynamically customize the attributes, legend, etc. - Add --linespacing and change default margins and linespacing. - Add --allow for changing allowed sets. - Add a native SVG backend. + Add --nodeset options to hwloc-calc for converting between cpusets and nodesets. + Add --no-smt to lstopo, hwloc-bind and hwloc-calc to ignore multiple PU in SMT cores. + hwloc-annotate may annotate multiple locations at once. + Add a HTML/JS version of hwloc-ps. See contrib/hwloc-ps.www/README. + Add bash completions. * Misc + Add several FAQ entries in "Compatibility between hwloc versions" about API version, ABI, XML, Synthetic strings, and shmem topologies. ------------------------------------------------------------------- Tue Aug 27 08:36:28 UTC 2019 - Thomas Blume <thomas.blume@suse.com> - update to latest released upstream version 2.0.4 (jsc#SLE-8583) * Add support for Linux 5.3 new sysfs cpu topology files with Die information. * Add support for Intel v2 Extended Topology Enumeration in the x86 backend. * Tiles, Modules and Dies are exposed as Groups for now. + HWLOC_DONT_MERGE_DIE_GROUPS=1 may be set in the environment to prevent Die groups from being automatically merged with identical parent or children. * Ignore NUMA node information from AMD topoext in the x86 backend, unless HWLOC_X86_TOPOEXT_NUMANODES=1 is set in the environment. * Group objects have a new "dont_merge" attribute to prevent them from being automatically merged with identical parent or children. * Fix build on Cygwin, thanks to Marco Atzeri for the patches. * Fix a corner case of hwloc_topology_restrict() where children would become out-of-order. * Fix the return length of export_xmlbuffer() functions to always include the ending \0. * Fix lstopo --children-order argument parsing. * Add support for Hygon Dhyana processors in the x86 backend, thanks to Pu Wen for the patch. * Fix symbol renaming to also rename internal components, thanks to Evan Ramos for the patch. * Fix build on HP-UX, thanks to Richard Lloyd for reporting the issues. * Detect PCI link speed without being root on Linux >= 4.13. * Add HWLOC_VERSION* macros to the public headers, thanks to Gilles Gouaillardet for the suggestion. * Bump the library soname to 15:0:0 to avoid conflicts with hwloc 1.11.x releases. The hwloc 2.0.0 soname was buggy (12:0:0), applications will have to be recompiled. * Serialize pciaccess discovery to fix concurrent topology loads in multiple threads. * Fix hwloc-dump-hwdata to only process SMBIOS information that correspond to the KNL and KNM configuration. * Add a heuristic for guessing KNL/KNM memory and cluster modes when hwloc-dump-hwdata could not run as root earlier. * Add --no-text lstopo option to remove text from some boxes in the graphical output. Mostly useful for removing Group labels. * Some minor fixes to memory binding. ------------------------------------------------------------------- Tue Nov 21 12:29:26 UTC 2017 - Thomas.Blume@suse.com - update to latest released upstream version 1.11.8 (fate#324166) * Multiple Solaris improvements + Detect caches on Sparc. + Properly detect allowed/disallowed PUs and NUMA nodes with processor sets. + Add hwloc_get_last_cpu_location() support for the current thread. * Add support for CUDA compute capability 7.0 and fix support for 6.[12]. * Tools improvements + Fix search for objects by physical index in command-line tools. + Add missing "cpubind:get_thisthread_last_cpu_location" in the output of hwloc-info --support. + Add --pid and --name to specify target processes in hwloc-ps. + Display thread names in lstopo and hwloc-ps on Linux. * Doc improvements + Add a FAQ entry about building on Windows. + Install missing sub-manpage for hwloc_obj_add_info() and hwloc_obj_get_info_by_name(). * Fix hwloc-bind --membind for CPU-less NUMA nodes (again). Thanks to Gilles Gouaillardet for reporting the issue. * Fix a memory leak on IBM S/390 platforms running Linux. * Fix a memory leak when forcing the x86 backend first on amd64/topoext platforms running Linux. * Command-line tools now support "hbm" instead "numanode" for filtering only high-bandwidth memory nodes when selecting locations. + hwloc-bind also support --hbm and --no-hbm for filtering only or no HBM nodes. * Add --children and --descendants to hwloc-info for listing object children or object descendants of a specific type. * Add --no-index, --index, --no-attrs, --attrs to disable/enable display of index numbers or attributes in the graphical lstopo output. * Try to gather hwloc-dump-hwdata output from all possible locations in hwloc-gather-topology. * Updates to the documentation of locations in hwloc(7) and command-line tools manpages. * Make the Linux discovery about twice faster, especially on the CPU side, by trying to avoid sysfs file accesses as much as possible. * Add support for AMD Family 17h processors (Zen) SMT cores in the Linux and x86 backends. * Add the HWLOC_TOPOLOGY_FLAG_THISSYSTEM_ALLOWED_RESOURCES flag (and the HWLOC_THISSYSTEM_ALLOWED_RESOURCES environment variable) for reading the set of allowed resources from the local operating system even if the topology was loaded from XML or synthetic. * Fix hwloc_bitmap_set/clr_range() for infinite ranges that do not overlap currently defined ranges in the bitmap. * Don't reset the lstopo zoom scale when moving the X11 window. * lstopo now has --flags for manually setting topology flags. * hwloc_get_depth_type() returns HWLOC_TYPE_DEPTH_UNKNOWN for Misc objects. ------------------------------------------------------------------- Tue Nov 21 09:52:50 UTC 2017 - idonmez@suse.com - Fix build on Leap where both sle_version is defined and is_opensuse is True. ------------------------------------------------------------------- Mon Mar 6 07:59:52 UTC 2017 - Thomas.Blume@suse.com - make hwloc-dump-hwdata only available on x86, as it is only supported for Intel Knights Landing Xeon Phi platforms - revert sub packages for SLE from no-arch to arch specific in order to keep backward compatibility - fix typo in specfile ------------------------------------------------------------------- Wed Feb 8 12:46:42 UTC 2017 - jengelh@inai.de - fix grammar errors ------------------------------------------------------------------- Fri Jan 27 13:14:01 UTC 2017 - Thomas.Blume@suse.com - use correct upstream source version ------------------------------------------------------------------- Tue Jan 24 15:10:18 UTC 2017 - Thomas.Blume@suse.com - use version_prefix in specfile and download_files service to get sources ------------------------------------------------------------------- Mon Jan 23 14:37:16 UTC 2017 - tchvatal@suse.com - Set noarch on the subpackages that are arch independent - Run configure with enabling verbose mode and disable needless knobs - Set version in the package fully (not 1.11 but 1.11.5+git...) - Rename files to name of the package, if it needs to be renamed the folder needs to keep the other name too - Do not mess with provides/obsoletes about the hwloc-2.0 it won't work with libsolv anyway without user interaction * Bump the user version to 2.0.0.1.11.5+git... to allow 'fake' update for user in order to work with fate#321929c#5 ------------------------------------------------------------------- Tue Jan 17 12:34:11 UTC 2017 - Thomas.Blume@suse.com - switch to version 1.11.5 since 2.0 is a development version with no .so-version set fate#321929 comment#5) ------------------------------------------------------------------- Mon Aug 29 13:28:27 UTC 2016 - Thomas.Blume@suse.com - fix missing manpage bug (bsc#995407) - remove dependency to selinux-policy, selinux is not essential for hwloc (bsc#976559 comment#4) ------------------------------------------------------------------- Fri Apr 22 08:28:22 UTC 2016 - Thomas.Blume@suse.com - add dependency to selinux-policy (bsc#976559) ------------------------------------------------------------------- Fri Mar 11 05:39:24 UTC 2016 - thomas.blume@suse.com - Update to 2.0 to support memory side cache (fate#319511) ------------------------------------------------------------------- Sat Dec 26 17:24:37 UTC 2015 - mpluskal@suse.com - Update to 1.11.2 * Improve support for Intel Knights Landing Xeon Phi on Linux: + Group local NUMA nodes of normal memory (DDR) and high-bandwidth memory (MCDRAM) together through "Cluster" groups so that the local MCDRAM is easy to find. - See "How do I find the local MCDRAM NUMA node on Intel Knights Landing Xeon Phi?" in the documentation. - For uniformity across all KNL configurations, always have a NUMA node object even if the host is UMA. + Fix the detection of the memory-side cache: - Add the hwloc-dump-hwdata superuser utility to dump SMBIOS information into /var/run/hwloc/ as root during boot, and load this dumped information from the hwloc library at runtime. - See "Why do I need hwloc-dump-hwdata for caches on Intel Knights Landing Xeon Phi?" in the documentation. Thanks to Grzegorz Andrejczuk for the patches and for the help. * The x86 and linux backends may now be combined for discovering CPUs through x86 CPUID and memory from the Linux kernel. This is useful for working around buggy CPU information reported by Linux (for instance the AMD Bulldozer/Piledriver bug below). Combination is enabled by passing HWLOC_COMPONENTS=x86 in the environment. * Fix L3 cache sharing on AMD Opteron 63xx (Piledriver) and 62xx (Bulldozer) in the x86 backend. Thanks to many users who helped. * Fix the overzealous L3 cache sharing fix added to the x86 backend in 1.11.1 for AMD Opteron 61xx (Magny-Cours) processors. * The x86 backend may now add the info attribute Inclusive=0 or 1 to caches it discovers, or to caches discovered by other backends earlier. Thanks to Guillaume Beauchamp for the patch. * Fix the management on alloc_membind() allocation failures on AIX, HP-UX and OSF/Tru64. * Fix spurious failures to load with ENOMEM on AIX in case of Misc objects below PUs. * lstopo improvements in X11 and Windows graphical mode: + Add + - f 1 shortcuts to manually zoom-in, zoom-out, reset the scale, or fit the entire window. + Display all keyboard shortcuts in the console. * Debug messages may be disabled at runtime by passing * HWLOC_DEBUG_VERBOSE=0 in the environment when --enable-debug was passed to configure. * Add a FAQ entry "What are these Group objects in my topology?". ------------------------------------------------------------------- Mon Nov 16 15:48:47 UTC 2015 - p.drouand@gmail.com - Update to version 1.11.1 * Hardwire the topology of Fujitsu K-computer, FX10, FX100 servers to workaround buggy Linux kernels. * Fix L3 cache information on AMD Opteron 61xx Magny-Cours processors in the x86 backend. * Detect block devices directly attached to PCI without a controller, for instance NVMe disks. * Add the PCISlot attribute to all PCI functions instead of only the first one. * Ignore PCI bridges that could fail assertions by reporting buggy secondary-subordinate bus numbers * Fix an overzealous assertion when inserting an intermediate Group object while Groups are totally ignored. * Fix a memory leak on Linux on AMD processors with dual-core compute units. * Fix a memory leak on failure to load a xml diff file. * Fix some segfaults when inputting an invalid synthetic description. * Fix a segfault when plugins fail to find core symbols. * Fix a segfault when displaying logical indexes in the graphical lstopo. * Fix lstopo linking with X11 libraries, for instance on Mac OS X. * hwloc-annotate, hwloc-diff and hwloc-patch do not drop unavailable resources from the output anymore and those may be annotated as well. * Command-line tools may now import XML from the standard input with -i -.xml * Add missing documentation for the hwloc-info --no-icaches option. ------------------------------------------------------------------- Thu Mar 5 15:32:07 UTC 2015 - mpluskal@suse.com - Cleanup spec file with spec-cleaner - Update to 1.10.1 * Actually remove disallowed NUMA nodes from nodesets when the whole-system flag isn't enabled. * Fix the gathering of PCI domains. Thanks to James Custer for reporting the issue and providing a patch. * Fix the merging of identical parent and child in presence of Misc objects. Thanks to Dave Love for reporting the issue. * Fix some misordering of children when merging with ignore_keep_structure() in partially allowed topologies. * Fix an overzealous assertion in the debug code when running on a single-PU host with I/O. Thanks to Thomas Van Doren for reporting the issue. * Don't forget to setup NUMA node object nodesets in x86 backend (for BSDs) and OSF/Tru64 backend. * Fix cpuid-x86 build error with gcc -O3 on x86-32. Thanks to Thomas Van Doren for reporting the issue. * Fix support for future very large caches in the x86 backend. * Fix vendor/device names for SR-IOV PCI devices on Linux. * Fix an unlikely crash in case of buggy hierarchical distance matrix. * Fix PU os_index on some AIX releases. Thanks to Hendryk Bockelmann and Erik Schnetter for helping debugging. * Fix hwloc_bitmap_isincluded() in case of infinite sets. * Change hwloc-ls.desktop into a lstopo.desktop and only install it if lstopo is built with Cairo/X11 support. It cannot work with a non-graphical lstopo or hwloc-ls. * Add support for the renaming of Socket into Package in future releases. * Add support for the replacement of HWLOC_OBJ_NODE with HWLOC_OBJ_NUMANODE in future releases. * Clarify the documentation of distance matrices in hwloc.h and in the manpage of the hwloc-distances. Thanks to Dave Love for the suggestion. * Improve some error messages by displaying more information about the hwloc library in use. * Document how to deal with the ABI break when upgrading to the upcoming 2.0 See "How do I handle ABI breaks and API upgrades ?" in the FAQ. ------------------------------------------------------------------- Tue Dec 30 10:34:40 UTC 2014 - mardnh@gmx.de - minor spec fixes (unbreak build for suse_version < Factory) ------------------------------------------------------------------- Tue Dec 16 09:22:26 UTC 2014 - alinm.elena@gmail.com - Update to Version 1.10.0 * v1.10.0 is the new feature release. There is no new major change in this release, just improvements everywhere. If you are buying new Intel Xeon E5 with 10 cores or more, this release is required for proper Socket/NUMA detection until the Linux kernel gets fixed. * API + Add hwloc_topology_export_synthetic() to export a topology to a synthetic string without using lstopo. See the Synthetic topologies section in the documentation. + Add hwloc_topology_set/get_userdata() to let the application save a private pointer in the topology whenever it needs a way to find its own object corresponding to a topology. + Add hwloc_get_numanode_obj_by_os_index() and document that this function as well as hwloc_get_pu_obj_by_os_index() are good at converting nodesets and cpusets into objects. + hwloc_distrib() does not ignore any objects anymore when there are too many of them. They get merged with others instead. Thanks to Tim Creech for reporting the issue. * Tools + hwloc-bind --get <command-line> now executes the command after displaying the binding instead of ignoring the command entirely. Thanks to John Donners for the suggestion. + Clarify that memory sizes shown in lstopo are local by default unless specified (total memory added in the root object). * Synthetic topologies + Synthetic topology descriptions may now specify attributes such as memory sizes and OS indexes. See the Synthetic topologies section in the documentation. + lstopo now exports in this fully-detailed format by default. The new option --export-synthetic-flags may be used to revert back the old format. * Documentation + Add the doc/examples/ subdirectory with several real-life examples, including the already existing hwloc-hello.C for basics. Thanks to Rob Aulwes for the suggestion. + Improve the documentation of CPU and memory binding in the API. + Add a FAQ entry about operating system errors, especially on AMD platforms with buggy cache information. + Add a FAQ entry about loading many topologies in a single program. * Misc + Work around buggy Linux kernels reporting 2 sockets instead 1 socket with 2 NUMA nodes for each Xeon E5 v3 (Haswell) processor. + pciutils/libpci support is now removed since libpciaccess works well and there's also a Linux-specific PCI backend. For the record, pciutils was GPL and therefore disabled by default since v1.6.2. + Add --disable-cpuid configure flag to work around buggy processor simulators reporting invalid CPUID information. Thanks for Andrew Friedley for reporting the issue. + Fix a racy use of libltdl when manipulating multiple topologies in different threads. Thanks to Andra Hugo for reporting the issue and testing patches. + Fix some build failures in private/misc.h. Thanks to Pavan Balaji and Ralph Castain for the reports. + Fix failures to detect X11/Xutil.h on some Solaris platforms. Thanks to Siegmar Gross for reporting the failure. + The plugin ABI has changed, this release will not load plugins built against previous hwloc releases. ------------------------------------------------------------------- Sun Aug 17 18:42:36 UTC 2014 - mardnh@gmx.de - removed patches (fixed upstream) * hwloc-1.7-manpage.patch * hwloc-1.7.patch - Update to Version 1.9.0 * API + Add hwloc_obj_type_sscanf() to extend hwloc_obj_type_of_string() with type-specific attributes such as Cache/Group depth and Cache type. hwloc_obj_type_of_string() is moved to hwloc/deprecated.h. + Add hwloc_linux_get_tid_last_cpu_location() for retrieving the last CPU where a Linux thread given by TID ran. + Add hwloc_distrib() to extend the old hwloc_distribute[v]() functions. hwloc_distribute[v]() is moved to hwloc/deprecated.h. + Don't mix total and local memory when displaying verbose object attributes with hwloc_obj_attr_snprintf() or in lstopo. * Backends + Add CPUVendor, CPUModelNumber and CPUFamilyNumber info attributes for x86, ia64 and Xeon Phi sockets on Linux, to extend the x86-specific support added in v1.8.1. Requested by Ralph Castain. + Add many CPU- and Platform-related info attributes on ARM and POWER platforms, in the Machine and Socket objects. + Add CUDA info attributes describing the number of multiprocessors and cores and the size of the global, shared and L2 cache memories in CUDA OS devices. + Add OpenCL info attributes describing the number of compute units and the global memory size in OpenCL OS devices. + The synthetic backend now accepts extended types such as L2Cache, L1i or Group3. lstopo also exports synthetic strings using these extended types. * Tools + lstopo - Do not overwrite output files by default anymore. Pass -f or --force to enforce it. - Display OpenCL, CUDA and Xeon Phi numbers of cores and memory sizes in the graphical output. - Fix export to stdout when specifying a Cairo-based output type with --of. + hwloc-ps - Add -e or --get-last-cpu-location to report where processes/threads run instead of where they are bound. - Report locations as likely-more-useful objects such as Cores or Sockets instead of Caches when possible. + hwloc-bind - Fix failure on Windows when not using --pid. - Add -e as a synonym to --get-last-cpu-location. + hwloc-distrib - Add --reverse to distribute using last objects first and singlify into last bits first. Thanks to Jirka Hladky for the suggestion. + hwloc-info - Report unified caches when looking for data or instruction cache ancestor objects. * Misc + Add experimental Visual Studio support under contrib/windows. Thanks to Eloi Gaudry for his help and for providing the first draft. + Fix some overzealous assertions and warnings about the ordering of objects on a level with respect to cpusets. The ordering is only guaranteed for complete cpusets (based on the first bit in sets). + Fix some memory leaks when importing xml diffs and when exporting a "too complex" entry. 1.8.1: * Fix the cpuid code on Windows 64bits so that the x86 backend gets enabled as expected and can populate CPU information. Thanks to Robin Scher for reporting the problem. * Add CPUVendor/CPUModelNumber/CPUFamilyNumber attributes when running on x86 architecture. Thanks to Ralph Castain for the suggestion. * Work around buggy BIOS reporting duplicate NUMA nodes on Linux. Thanks to Jeff Becker for reporting the problem and testing the patch. * Add a name to the lstopo graphical window. Thanks to Michael Prokop for reporting the issue. 1.8.0: * New components + Add the "linuxpci" component that always works on Linux even when libpciaccess and libpci aren't available (and even with a modified file-system root). By default the old "pci" component runs first because "linuxpci" lacks device names (obj->name is always NULL). * API + Add the topology difference API in hwloc/diff.h for manipulating many similar topologies. + Add hwloc_topology_dup() for duplicating an entire topology. + hwloc.h and hwloc/helper.h have been reorganized to clarify the documentation sections. The actual inline code has moved out of hwloc.h into the new hwloc/inlines.h. + Deprecated functions are now in hwloc/deprecated.h, and not in the official documentation anymore. * Tools + Add hwloc-diff and hwloc-patch tools together with the new diff API. + Add hwloc-compress-dir to (de)compress an entire directory of XML files using hwloc-diff and hwloc-patch. + Object colors in the graphical output of lstopo may be changed by adding a "lstopoStyle" info attribute. See CUSTOM COLORS in the lstopo(1) manpage for details. Thanks to Jirka Hladky for discussing the idea. + hwloc-gather-topology may now gather I/O-related files on Linux when --io is given. Only the linuxpci component supports discovering I/O objects from these extended tarballs. + hwloc-annotate now supports --ri to remove/replace info attributes with a given name. + hwloc-info supports "root" and "all" special locations for dumping information about the root object. + lstopo now supports --append-legend to append custom lines of text to the legend in the graphical output. Thanks to Jirka Hladky for discussing the idea. + hwloc-calc and friends have a more robust parsing of locations given on the command-line and they report useful error messages about it. + Add --whole-system to hwloc-bind, hwloc-calc, hwloc-distances and hwloc-distrib, and add --restrict to hwloc-bind for uniformity among tools. * Misc + Calling hwloc_topology_load() or hwloc_topology_set_*() on an already loaded topology now returns an error (deprecated since release 1.6.1). + Fix the initialisation of cpusets and nodesets in Group objects added when inserting PCI hostbridges. + Never merge Group objects that were added explicitly by the user with hwloc_custom_insert_group_object_by_parent(). + Add a sanity check during dynamic plugin loading to prevent some crashes when hwloc is dynamically loaded by another plugin mechanisms. + Add --with-hwloc-plugins-path to specify the install/load directories of plugins. + Add the MICSerialNumber info attribute to the root object when running hwloc inside a Xeon Phi to match the same attribute in the MIC OS device when running in the host. 1.7.2: * Do not create invalid block OS devices on very old Linux kernel such as RHEL4 2.6.9. * Fix PCI subvendor/device IDs. * Fix the management of Misc objects inserted by parent. Thanks to Jirka Hladky for reporting the problem. * Add a Port<n>State into attribute to OpenFabrics OS devices. * Add a MICSerialNumber info attribute to Xeon PHI/MIC OS devices. * Improve verbose error messages when failing to load from XML. 1.7.1: * Fix a failed assertion in the distance grouping code when loading a XML file that already contains some groups. Thanks to Laercio Lima Pilla for reporting the problem. * Remove unexpected Group objects when loading XML topologies with I/O objects and NUMA distances. Thanks to Elena Elkina for reporting the problem and testing patches. * Fix PCI link speed discovery when using libpciaccess. * Fix invalid libpciaccess virtual function device/vendor IDs when using SR-IOV PCI devices on Linux. * Fix GL component build with old NVCtrl releases. Thanks to Jirka Hladky for reporting the problem. * Fix embedding breakage caused by libltdl. Thanks to Pavan Balaji for reporting the problem. * Always use the system-wide libltdl instead of shipping one inside hwloc. * Document issues when enabling plugins while embedding hwloc in another project, in the documentation section Embedding hwloc in Other Software. * Add a FAQ entry "How to get useful topology information on NetBSD?" in the documentation. * Somes fixes in the renaming code for embedding. * Miscellaneous minor build fixes. ------------------------------------------------------------------- Tue Nov 12 22:17:52 UTC 2013 - meissner@suse.com - fixed shared library rename ------------------------------------------------------------------- Wed Oct 16 08:02:12 UTC 2013 - boris@steki.net - enable build on SLE and older (12.2) OS ------------------------------------------------------------------- Fri Oct 4 12:34:25 UTC 2013 - mvyskocil@suse.com - Update to 1.7 * New operating system backends * New I/O device discovery * New components 1.6.2: * Use libpciaccess instead of pciutils/libpci by default for I/O discovery. 1.6.1: * Fix some crash or buggy detection in the x86 backend when Linux cgroups/cpusets restrict the available CPUs. * Fix the pkg-config output with --libs --static. Thanks to Erik Schnetter for reporting one of the problems. * Fix the output of hwloc-calc -H --hierarchical when using logical indexes in the output. 1.6.0: * Reorganize the backend infrastructure to support dynamic selection of components and dynamic loading of plugins. 1.5.1: * Fix block OS device detection on Linux kernel 3.3 and later. Thanks to Guy Streeter for reporting the problem and testing the fix. * and many more changes, see NEWS files - Added patches (taken from Fedora): * hwloc-1.7.patch * hwloc-1.7-manpage.patch ------------------------------------------------------------------- Sat Oct 13 07:36:23 UTC 2012 - d.pashov@gmail.com - Set executable permissions to 2 scripts ------------------------------------------------------------------- Fri Oct 12 16:37:05 UTC 2012 - cfarrell@suse.com - license update: BSD-3-Clause Use SPDX format (http://www.spdx.org/licenses) ------------------------------------------------------------------- Fri Mar 30 19:18:43 UTC 2012 - pascal.bleser@opensuse.org - update to 1.4.1: * fix hwloc_alloc_membind * fix memory leaks in some get_membind() functions * fix helpers converting from Linux libnuma to hwloc (hwloc/linux-libnuma.h) in case of out-of-order NUMA node ids * fix some overzealous assertions in the distance grouping code * workaround BIOS reporting empty I/O locality in cuda and openfabrics helpers on Linux * install a valgrind suppressions file hwloc-valgrind.supp (see the FAQ) * fix memory binding documentation - changes from 1.4.0: * add "custom" interface and "assembler" tools to build multi-node topology; see the Multi-node Topologies section in the documentation for details * add symmetric_subtree object attribute to ease assumptions when consulting regular symmetric topologies * add a CPUModel and CPUType info attribute to Socket objects on Linux and Solaris * add hwloc_get_obj_index_inside_cpuset() to retrieve the "logical" index of an object within a subtree of the topology * add more NVIDIA CUDA helpers in cuda.h and cudart.h to find hwloc objects corresponding to CUDA devices * add a group object above partial distance matrices to make sure the matrices are available in the final topology, except when this new object would contradict the existing hierarchy * grouping by distances now also works when loading from XML * fix some corner cases in object insertion, for instance when dealing with NUMA nodes without any CPU * implement hwloc_get_area_membind() on Linux * honor I/O topology flags when importing from XML * further improve XML-related error checking and reporting * hide synthetic topology error messages unless HWLOC_SYNTHETIC_VERBOSE=1 * add synthetic exporting of symmetric topologies to lstopo * lstopo --horiz and --vert can now be applied to some specific object types * lstopo -v -p now displays distance matrices with physical indexes * add hwloc-distances utility to list distances * fix and/or document the behavior of most inline functions in hwloc/helper.h when the topology contains some I/O or Misc objects * backend documentation enhancements * fix dependencies in the embedded library * remove references to internal symbols in the tools - changes from 1.3.2: * fix missing last bit in hwloc_linux_get_thread_cpubind() * fix PCI locality when Linux cgroups restrict the available CPUs * fix conversion from/to Linux libnuma when some NUMA nodes have no memory * remove references to internal symbols in the tools * further improve XML-related error checking and reporting ------------------------------------------------------------------- Wed Dec 21 08:28:43 UTC 2011 - pascal.bleser@opensuse.org - update to 1.3.1: * silence some harmless pciutils warnings - changes from 1.3.0: * add I/O devices and bridges to the topology using the pciutils library; only enabled after setting the relevant flag with hwloc_topology_set_flags() before hwloc_topology_load(). See the I/O Devices section in the documentation for details. * discovery improvements: + add associativity to the cache attributes + add support for s390/z11 "books" on Linux + add the HWLOC_GROUPING_ACCURACY environment variable to relax distance-based grouping constraints. See the Environment Variables section in the documentation for details about grouping behavior and configuration. + allow user-given distance matrices to remove or replace those discovered by the OS backend * XML improvements: + XML is now always supported: a minimalistic custom import/export code is used when libxml2 is not available. It is only guaranteed to read XML files generated by hwloc. + hwloc_topology_export_xml() and export_xmlbuffer() now return an integer + add hwloc_free_xmlbuffer() to free the buffer allocated by hwloc_topology_export_xmlbuffer() + hide XML topology error messages unless HWLOC_XML_VERBOSE=1 * minor API updates: + add hwloc_obj_add_info to customize object info attributes * tools: + lstopo now displays I/O devices by default. Several options are added to configure the I/O discovery. + hwloc-calc and hwloc-bind now accept I/O devices as input + add --restrict option to hwloc-calc and hwloc-distribute + add --sep option to change the output field separator in hwloc-calc + add --whole-system option to hwloc-ps - changes from 1.2.2: * fix XML import of very large page sizes or counts on 32bits platform * fix crash when administrator limitations such as Linux cgroup require to restrict distance matrices * fix the removal of objects such as AMD Magny-Cours dual-node sockets in case of administrator restrictions * improve error reporting and messages in case of wrong synthetic topology description ------------------------------------------------------------------- Fri Aug 26 23:33:39 UTC 2011 - pascal.bleser@opensuse.org - update to 1.2.1: * improve support of AMD Bulldozer "Compute-Unit" modules by detecting logical processors with different core IDs on Linux * fix hwloc-ps crash when listing processes from another Linux cpuset * fix hwloc_get_last_cpu_location(THREAD) on Linux ------------------------------------------------------------------- Wed Jun 01 20:39:43 CET 2011 - pascal.bleser@opensuse.org - initial version (1.2)
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