hwloc (Hardware Locality) 2.4.0rc1 is now available for download. https://www.open-mpi.org/software/hwloc/v2.4/
v2.4.0 is a small release that mainly brings support for hybrid CPUs through a new API in hwloc/cpukinds.h. The following is a summary of the changes since v2.3.0. Version 2.4.0 ------------- * API + 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. * Backends + Properly handle Linux kernel 5.10+ exposing ACPI HMAT information with knowledge of Generic Initiators. * Tools + 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. * Misc + 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. -- Brice
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