1HWLOC-DUMP-HWDATA(1)                 hwloc                HWLOC-DUMP-HWDATA(1)
2
3
4

NAME

6       hwloc-dump-hwdata  -  Dump topology and locality information from hard‐
7       ware tables
8

SYNOPSIS

10       hwloc-dump-hwdata [options]
11

OPTIONS

13       -o <dir>  save output files to directory <dir> instead of  the  default
14                 /run/hwloc/ that was specified at configure time.
15
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.
19

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.
25
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.
30
31       hwloc-dump-hwdata  is  currently  only  useful on Intel Knights Landing
32       Xeon Phi platforms.
33
34       The current list of dumped information is:
35
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.
41

SEE ALSO

43       hwloc(7), lstopo(1)
44
45
46
47
481.11.9                           Jan 18, 2018             HWLOC-DUMP-HWDATA(1)
Impressum