1HWLOC-DUMP-HWDATA(1)                 hwloc                HWLOC-DUMP-HWDATA(1)
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NAME

6       hwloc-dump-hwdata  -  Dump topology and locality information from hard‐
7       ware tables
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SYNOPSIS

10       hwloc-dump-hwdata [options]
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OPTIONS

13       -o <dir>  save output files to directory <dir> instead of  the  default
14                 /run/hwloc/ that was specified at configure time.
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16                 You  may  want to set the HWLOC_DUMPED_HWDATA_DIR environment
17                 variable as well so that the hwloc library looks  for  dumped
18                 files in that same directory.
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DESCRIPTION

21       hwloc  may  benefit  from  some  locality and topology information from
22       SMBIOS or ACPI tables.  They are accessible  from  raw  hardware  files
23       under  directories  such  /sys/firmware/dmi/  or /sys/firmware/acpi/ on
24       Linux.  These files are usually only accessible to root.
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26       The hwloc-dump-hwdata tool dumps the useful contents of such files into
27       human-readable  and  world-accessible  files.  The intent is to run the
28       tool once during boot and have the main (non-privileged) hwloc  library
29       gather information from these human-readable files.
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31       hwloc-dump-hwdata  is  currently  only  useful on Intel Knights Landing
32       Xeon Phi platforms.
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34       The current list of dumped information is:
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36       Intel Knights Landing memory, cache and clustering configuration
37            gathered    from    specific    SMBIOS     entries     such     as
38            /sys/firmware/dmi/entries/14-*                                 and
39            /sys/firmware/dmi/entries/160-*, and  saved  in  file  knl_memory‐
40            side_cache.
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SEE ALSO

43       hwloc(7), lstopo(1)
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481.11.8                           Sep 06, 2017             HWLOC-DUMP-HWDATA(1)
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