HWLOC-DUMP-HWDATA(1) hwloc HWLOC-DUMP-HWDATA(1) NAME hwloc-dump-hwdata - Dump topology and locality information from hard- ware tables SYNOPSIS hwloc-dump-hwdata [options] OPTIONS -o <dir> save output files to directory <dir> instead of the default /run/hwloc/ that was specified at configure time. You may want to set the HWLOC_DUMPED_HWDATA_DIR environment variable as well so that the hwloc library looks for dumped files in that same directory. --version Report version and exit. -h --help Display help message and exit. DESCRIPTION hwloc may benefit from some locality and topology information from SM- BIOS or ACPI tables. They are accessible from raw hardware files under directories such /sys/firmware/dmi/ or /sys/firmware/acpi/ on Linux. These files are usually only accessible to root, and they only exist when there is dmi-sysfs support in the Linux kernel. The hwloc-dump-hwdata tool dumps the useful contents of such files into human-readable and world-accessible files. The intent is to run the tool once during boot and have the main (non-privileged) hwloc library gather information from these human-readable files. hwloc-dump-hwdata is currently only useful for Intel Xeon Phi proces- sors (Knights Landing and Knights Mill). The current list of dumped information is: Intel Xeon Phi processor memory, cache and clustering configuration gathered from specific SMBIOS entries such as /sys/firmware/dmi/entries/14-* and /sys/firmware/dmi/en- tries/160-*, and saved in file knl_memoryside_cache. SEE ALSO hwloc(7), lstopo(1) 2.9.0 Dec 14, 2022 HWLOC-DUMP-HWDATA(1)
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