The Hardware Locality (hwloc) team is pleased to announce the release
v1.4 is a major new release series. It includes many new features and
changes over the v1.3.x series. The most noticeable improvement is the
ability to assemble the topologies of multiple nodes into a single
global one. See the Multi-node Topologies section in the documentation
Also please note that 64bits windows builds are now available for
* Major features
+ Add "custom" interface and "assembler" tools to build multi-node
topology. See the Multi-node Topologies section in the documentation
* Interface improvements
+ 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
+ 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.
* Discovery improvements
+ 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.
* Bug fixes
+ Fix missing last bit in hwloc_linux_get_thread_cpubind().
Thanks to Carolina Gómez-Tostón Gutiérrez for reporting the issue.
+ Fix FreeBSD build without cpuid support.
+ Fix several Windows build issues.
+ Fix inline keyword definition in public headers.
+ Fix dependencies in the embedded library.
+ Improve visibility support detection. Thanks to Dave Love for providing
+ Remove references to internal symbols in the tools.