The Hardware Locality (hwloc) team is pleased to announce the first release candidates of 2.0.4 and 1.11.13.
http://www.open-mpi.org/projects/hwloc/ The most important change is support for upcoming Intel processors with multiple Dies per CPU. hwloc release 2.1 will add a new "Die" object. In the meantime 1.11.13 and 2.0.4 represent those Dies as "Die" groups. The following is a summary of the major changes between 2.0.3 and 2.0.4. Changes between 1.11.12 and 1.11.13 are identical. * 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. -- Brice
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