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