hwloc (Hardware Locality) 2.8.0rc1 is now available for download.
https://www.open-mpi.org/software/hwloc/v2.8/ v2.8.0 comes with several unrelated improvements all over the place. The following is a summary of the changes since v2.7.0. Version 2.8.0 ------------- * API + Add HWLOC_TOPOLOGY_FLAG_NO_DISTANCES, _NO_MEMATTRS and _NO_CPUKINDS to reduce the overhead when unneeded. + Add separate Read/Write Bandwidth/Latency memory attributes and implement them on Linux. * Backends + NUMA nodes may now have a subtype such as DRAM, HBM, SPM, or NVM on heterogeneous memory platforms on Linux. - Add DAXType and DAXParent attributes on Linux to tell where a DAX device or its corresponding NUMA node come from (SPM for Specific-Purpose or NVM for Non-Volatile Memory). + Detect heterogeneous caches in hybrid CPUs on MacOS X, thanks to Paul Bone for the help. + Max frequencies are not ignored in Linux cpukinds anymore (they were ignored in hwloc 2.7.0), but they may be slightly adjusted to avoid reporting hybrid CPUs because Intel Turbo Boost Max 3.0. - See the documentation of environment variable HWLOC_CPUKINDS_MAXFREQ. + Hardwire the PCI locality of HPE Cray EX235a nodes. * Tools + lstopo and other tools may now load Linux and x86 cpuid topology files from a tarball. + lstopo may now replace the P# and L# index prefixes with custom strings thanks to --os-index-prefix and --logical-index-prefix options. * Misc + Add --disable-readme to avoid regenerating the top-level hwloc README file from the documentation. -- Brice
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