1 lscpu
2 Architecture:          x86_64
3 CPU op-mode(s):        32-bit, 64-bit
4 Byte Order:            Little Endian
5 CPU(s):                104
6 On-line CPU(s) list:   0-103
7 Thread(s) per core:    2
8 Core(s) per socket:    26
9 Socket(s):             2
10 NUMA node(s):          2
11 Vendor ID:             GenuineIntel
12 CPU family:            6
13 Model:                 85
14 Model name:            Intel(R) Xeon(R) Platinum 8269CY CPU @ 2.50GHz
15 Stepping:              7
16 CPU MHz:               3200.000
17 CPU max MHz:           3800.0000
18 CPU min MHz:           1200.0000
19 BogoMIPS:              4998.89
20 Virtualization:        VT-x
21 L1d cache:             32K
22 L1i cache:             32K
23 L2 cache:              1024K
24 L3 cache:              36608K
25 NUMA node0 CPU(s):     0-25,52-77
26 NUMA node1 CPU(s):     26-51,78-103
27
28 time for i in $(seq 0 8 51); do echo $i; numactl -C $i -m 0 ./bin/stream -W 5 -N 5 -M 64M; done
29 0
30 STREAM copy latency: 1.15 nanoseconds
31 STREAM copy bandwidth: 13941.80 MB/sec
32 STREAM scale latency: 1.16 nanoseconds
33 STREAM scale bandwidth: 13799.89 MB/sec
34 STREAM add latency: 1.31 nanoseconds
35 STREAM add bandwidth: 18318.23 MB/sec
36 STREAM triad latency: 1.56 nanoseconds
37 STREAM triad bandwidth: 15356.72 MB/sec
38 16
39 STREAM copy latency: 1.12 nanoseconds
40 STREAM copy bandwidth: 14293.68 MB/sec
41 STREAM scale latency: 1.13 nanoseconds
42 STREAM scale bandwidth: 14162.47 MB/sec
43 STREAM add latency: 1.31 nanoseconds
44 STREAM add bandwidth: 18293.27 MB/sec
45 STREAM triad latency: 1.53 nanoseconds
46 STREAM triad bandwidth: 15692.47 MB/sec
47 32
48 STREAM copy latency: 1.52 nanoseconds
49 STREAM copy bandwidth: 10551.71 MB/sec
50 STREAM scale latency: 1.52 nanoseconds
51 STREAM scale bandwidth: 10508.33 MB/sec
52 STREAM add latency: 1.38 nanoseconds
53 STREAM add bandwidth: 17363.22 MB/sec
54 STREAM triad latency: 2.00 nanoseconds
55 STREAM triad bandwidth: 12024.52 MB/sec
56 40
57 STREAM copy latency: 1.49 nanoseconds
58 STREAM copy bandwidth: 10758.50 MB/sec
59 STREAM scale latency: 1.50 nanoseconds
60 STREAM scale bandwidth: 10680.17 MB/sec
61 STREAM add latency: 1.34 nanoseconds
62 STREAM add bandwidth: 17948.34 MB/sec
63 STREAM triad latency: 1.98 nanoseconds
64 STREAM triad bandwidth: 12133.22 MB/sec
65 48
66 STREAM copy latency: 1.49 nanoseconds
67 STREAM copy bandwidth: 10736.56 MB/sec
68 STREAM scale latency: 1.50 nanoseconds
69 STREAM scale bandwidth: 10692.93 MB/sec
70 STREAM add latency: 1.34 nanoseconds
71 STREAM add bandwidth: 17902.85 MB/sec
72 STREAM triad latency: 1.96 nanoseconds
73 STREAM triad bandwidth: 12239.44 MB/sec