(mailing lists had troubles last week, you may have missed the rc1 announce below)
I just released rc2. Changes since rc1 include an update to the Visual Studio solution and some minor fixes. Brice Le 23/09/2019 à 22:24, Brice Goglin a écrit : > hwloc (Hardware Locality) 2.1.0rc1 is now available for download. > > https://www.open-mpi.org/software/hwloc/v2.1/ > > v2.1.0 brings quite a lot of improvements. > There are two new object types: "Die" for Xeon 9200 processors, > and "MemorySideCache" (used when DDR is a cache in front of NVDIMMs). > > There's also better support for discovering the locality of memory > (e.g. when DDR and NVDIMMs are used as separate NUMA nodes). > > lstopo got a lot of improvements: nicer graphical output, factorization > of identical objects (when you have maaaany cores in your CPUs), > many keyboard shortcuts to configure interactive outputs. > > Bash completions are also available to ease command-line invocations. > > > The following is a summary of the changes since v2.0.4. > > Version 2.1.0 > ------------- > * 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. > - They are filtered-out by default, except in command-line tools. > - They are only available on very recent platforms running Linux 5.2+ > and uptodate ACPI tables. > - The KNL MCDRAM in cache mode is still exposed as a L3 unless > HWLOC_KNL_MSCACHE_L3=0 in the environment. > + 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(), > thanks to Junchao Zhang for the suggestion. > + Improve the API for dealing with disallowed resources > - HWLOC_TOPOLOGY_FLAG_WHOLE_SYSTEM is replaced with > FLAG_INCLUDE_DISALLOWED > and --whole-system command-line options with --disallowed. > . Former names are still accepted for backward compatibility. > - Add hwloc_topology_allow() for changing allowed sets after load(). > - Add the HWLOC_ALLOW=all environment variable to totally ignore > administrative restrictions such as Linux Cgroups. > - Add disallowed_pu and disallowed_numa bits to the discovery support > structure. > + 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. > - They may be unignored if HWLOC_KEEP_NVIDIA_GPU_NUMA_NODES=1 in the > environment. > - Fix their CPU locality and add info attributes to identify them. > Thanks to Max Katz and Edgar Leon for the help. > + 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). > Thanks to Sharath K Bhat for testing patches. > + 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. > - It may be reenabled by setting HWLOC_USE_DT=1 in the environment. > + Discovery components are now divided in phases that may be individually > blacklisted. > - The linuxio component has been merged back into the linux component. > * Tools > + lstopo > - lstopo factorizes objects by default in the graphical output when > there are more than 4 identical children. > . New options --no-factorize and --factorize may be used to configure > this. > . Hit the 'f' key to disable factorizing in interactive outputs. > - 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. Its graphical output may be slightly less > pretty than Cairo (still used by default if available) but the SVG > code provides attributes to manipulate objects from HTML/JS. > See dynamic_SVG_example.html for an example. > + 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. > > > > It's not clear yet whether there will be new v1.11.x or v2.0.x releases > after the final 2.1.0 is released. If you need some, please let me know. > > -- > Brice >
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