The Hardware Locality (hwloc) team is pleased to announce the first release candidate for v1.4:
http://www.open-mpi.org/projects/hwloc/ v1.4rc1 is the first milestone of a major feature release. 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 for details. Also please note that 64bits windows builds are now available for download. * Major features + Add "custom" interface and "assembler" tools to build multi-node topology. See the Multi-node Topologies section in the documentation for details. * 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 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. * 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. * Backends + Implement hwloc_get_area_membind() on Linux. + Honor I/O topology flags when importing from XML. + Further improve XML-related error reporting. + Hide synthetic topology error messages unless HWLOC_SYNTHETIC_VERBOSE=1. * Tools + 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. * Documentation + 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. -- Brice
