wiki:Tools/likwid/example_topology_broadwell

Example likwid-topology on Intel Xeon Broadwell

likwid-topology -g
--------------------------------------------------------------------------------
CPU name:       Intel(R) Xeon(R) CPU E5-2660 v4 @ 2.00GHz
CPU type:       Intel Xeon Broadwell EN/EP/EX processor
CPU stepping:   1
********************************************************************************
Hardware Thread Topology
********************************************************************************
Sockets:                2
Cores per socket:       14
Threads per core:       2
--------------------------------------------------------------------------------
HWThread        Thread          Core            Socket          Available
0               0               0               0               *
1               0               1               0               *
2               0               2               0               *
...
55              1               27              1               *
--------------------------------------------------------------------------------
Socket 0:               ( 0 28 1 29 2 30 3 31 4 32 5 33 6 34 7 35 8 36 9 37 10 38 11 39 12 40 13 41 )
Socket 1:               ( 14 42 15 43 16 44 17 45 18 46 19 47 20 48 21 49 22 50 23 51 24 52 25 53 26 54 27 55 )
--------------------------------------------------------------------------------
********************************************************************************
Cache Topology
********************************************************************************
Level:                  1
Size:                   32 kB
Cache groups:           ( 0 28 ) ( 1 29 ) ( 2 30 ) ( 3 31 ) ( 4 32 ) ( 5 33 ) ( 6 34 ) ( 7 35 ) ( 8 36 ) ( 9 37 ) ( 10 38 ) ( 11 39 ) ( 12 40 ) ( 13 41 ) ( 14 42 ) ( 15 43 ) ( 16 44 ) ( 17 45 ) ( 18 46 ) ( 19 47 ) ( 20 48 ) ( 21 49 ) ( 22 50 ) ( 23 51 ) ( 24 52 ) ( 25 53 ) ( 26 54 ) ( 27 55 )
--------------------------------------------------------------------------------
Level:                  2
Size:                   256 kB
Cache groups:           ( 0 28 ) ( 1 29 ) ( 2 30 ) ( 3 31 ) ( 4 32 ) ( 5 33 ) ( 6 34 ) ( 7 35 ) ( 8 36 ) ( 9 37 ) ( 10 38 ) ( 11 39 ) ( 12 40 ) ( 13 41 ) ( 14 42 ) ( 15 43 ) ( 16 44 ) ( 17 45 ) ( 18 46 ) ( 19 47 ) ( 20 48 ) ( 21 49 ) ( 22 50 ) ( 23 51 ) ( 24 52 ) ( 25 53 ) ( 26 54 ) ( 27 55 )
--------------------------------------------------------------------------------
Level:                  3
Size:                   18 MB
Cache groups:           ( 0 28 1 29 2 30 3 31 4 32 5 33 6 34 ) ( 7 35 8 36 9 37 10 38 11 39 12 40 13 41 ) ( 14 42 15 43 16 44 17 45 18 46 19 47 20 48 ) ( 21 49 22 50 23 51 24 52 25 53 26 54 27 55 )
--------------------------------------------------------------------------------
********************************************************************************
NUMA Topology
********************************************************************************
NUMA domains:           4
--------------------------------------------------------------------------------
Domain:                 0
Processors:             ( 0 28 1 29 2 30 3 31 4 32 5 33 6 34 )
Distances:              10 11 21 21
Free memory:            29447.4 MB
Total memory:           32673 MB
--------------------------------------------------------------------------------
Domain:                 1
Processors:             ( 7 35 8 36 9 37 10 38 11 39 12 40 13 41 )
Distances:              11 10 21 21
Free memory:            28773.2 MB
Total memory:           32768 MB
--------------------------------------------------------------------------------
Domain:                 2
Processors:             ( 14 42 15 43 16 44 17 45 18 46 19 47 20 48 )
Distances:              21 21 10 11
Free memory:            31331.9 MB
Total memory:           32768 MB
--------------------------------------------------------------------------------
Domain:                 3
Processors:             ( 21 49 22 50 23 51 24 52 25 53 26 54 27 55 )
Distances:              21 21 11 10
Free memory:            30028.6 MB
Total memory:           32768 MB
--------------------------------------------------------------------------------


********************************************************************************
Graphical Topology
********************************************************************************
Socket 0:
+-----------------------------------------------------------------------------------------------------------------------------------------------------------+
| +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ |
| |  0 28  | |  1 29  | |  2 30  | |  3 31  | |  4 32  | |  5 33  | |  6 34  | |  7 35  | |  8 36  | |  9 37  | | 10 38  | | 11 39  | | 12 40  | | 13 41  | |
| +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ |
| +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ |
| |  32 kB | |  32 kB | |  32 kB | |  32 kB | |  32 kB | |  32 kB | |  32 kB | |  32 kB | |  32 kB | |  32 kB | |  32 kB | |  32 kB | |  32 kB | |  32 kB | |
| +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ |
| +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ |
| | 256 kB | | 256 kB | | 256 kB | | 256 kB | | 256 kB | | 256 kB | | 256 kB | | 256 kB | | 256 kB | | 256 kB | | 256 kB | | 256 kB | | 256 kB | | 256 kB | |
| +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ |
| +--------------------------------------------------------------------------+ +--------------------------------------------------------------------------+ |
| |                                   18 MB                                  | |                                   18 MB                                  | |
| +--------------------------------------------------------------------------+ +--------------------------------------------------------------------------+ |
+-----------------------------------------------------------------------------------------------------------------------------------------------------------+
Socket 1:
+-----------------------------------------------------------------------------------------------------------------------------------------------------------+
| +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ |
| | 14 42  | | 15 43  | | 16 44  | | 17 45  | | 18 46  | | 19 47  | | 20 48  | | 21 49  | | 22 50  | | 23 51  | | 24 52  | | 25 53  | | 26 54  | | 27 55  | |
| +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ |
| +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ |
| |  32 kB | |  32 kB | |  32 kB | |  32 kB | |  32 kB | |  32 kB | |  32 kB | |  32 kB | |  32 kB | |  32 kB | |  32 kB | |  32 kB | |  32 kB | |  32 kB | |
| +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ |
| +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ |
| | 256 kB | | 256 kB | | 256 kB | | 256 kB | | 256 kB | | 256 kB | | 256 kB | | 256 kB | | 256 kB | | 256 kB | | 256 kB | | 256 kB | | 256 kB | | 256 kB | |
| +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ +--------+ |
| +--------------------------------------------------------------------------+ +--------------------------------------------------------------------------+ |
| |                                   18 MB                                  | |                                   18 MB                                  | |
| +--------------------------------------------------------------------------+ +--------------------------------------------------------------------------+ |
+-----------------------------------------------------------------------------------------------------------------------------------------------------------+
  • Graphical representation of cache groups
  • 3 levels of cache
  • 2 sockets, 4 NUMA domains -> Cluster-on-Die (COD) Mode
    numactl -H
    
    available: 4 nodes (0-3)
    node 0 cpus: 0 1 2 3 4 5 6 28 29 30 31 32 33 34
    node 0 size: 32672 MB
    node 0 free: 29395 MB
    node 1 cpus: 7 8 9 10 11 12 13 35 36 37 38 39 40 41
    node 1 size: 32768 MB
    node 1 free: 28813 MB
    node 2 cpus: 14 15 16 17 18 19 20 42 43 44 45 46 47 48
    node 2 size: 32768 MB
    node 2 free: 31339 MB
    node 3 cpus: 21 22 23 24 25 26 27 49 50 51 52 53 54 55
    node 3 size: 32768 MB
    node 3 free: 30055 MB
    node distances:
    node   0   1   2   3 
      0:  10  11  21  21 
      1:  11  10  21  21 
      2:  21  21  10  11 
      3:  21  21  11  10
    
Last modified 12 months ago Last modified on Apr 4, 2018, 1:26:18 PM