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P2P-comm.txt
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[P2P (Peer-to-Peer) GPU Bandwidth Latency Test]
Device: 0, NVIDIA A100-PCIE-40GB, pciBusID: 1d, pciDeviceID: 0, pciDomainID:0
Device: 1, NVIDIA A100-PCIE-40GB, pciBusID: 1e, pciDeviceID: 0, pciDomainID:0
Device: 2, NVIDIA A100-PCIE-40GB, pciBusID: 1f, pciDeviceID: 0, pciDomainID:0
Device: 3, NVIDIA A100-PCIE-40GB, pciBusID: 20, pciDeviceID: 0, pciDomainID:0
Device: 4, NVIDIA A100-PCIE-40GB, pciBusID: 21, pciDeviceID: 0, pciDomainID:0
Device: 5, NVIDIA A100-PCIE-40GB, pciBusID: 22, pciDeviceID: 0, pciDomainID:0
Device: 6, NVIDIA A100-PCIE-40GB, pciBusID: 23, pciDeviceID: 0, pciDomainID:0
Device: 7, NVIDIA A100-PCIE-40GB, pciBusID: 24, pciDeviceID: 0, pciDomainID:0
Device: 8, NVIDIA A100-PCIE-40GB, pciBusID: 25, pciDeviceID: 0, pciDomainID:0
Device: 9, NVIDIA A100-PCIE-40GB, pciBusID: 26, pciDeviceID: 0, pciDomainID:0
Device: 10, NVIDIA A100-PCIE-40GB, pciBusID: 27, pciDeviceID: 0, pciDomainID:0
Device: 11, NVIDIA A100-PCIE-40GB, pciBusID: 28, pciDeviceID: 0, pciDomainID:0
Device: 12, NVIDIA A100-PCIE-40GB, pciBusID: 29, pciDeviceID: 0, pciDomainID:0
Device: 13, NVIDIA A100-PCIE-40GB, pciBusID: 2a, pciDeviceID: 0, pciDomainID:0
Device: 14, NVIDIA A100-PCIE-40GB, pciBusID: 2b, pciDeviceID: 0, pciDomainID:0
Device: 15, NVIDIA A100-PCIE-40GB, pciBusID: 2c, pciDeviceID: 0, pciDomainID:0
Device=0 CAN Access Peer Device=1
Device=0 CAN Access Peer Device=2
Device=0 CAN Access Peer Device=3
Device=0 CAN Access Peer Device=4
Device=0 CAN Access Peer Device=5
Device=0 CAN Access Peer Device=6
Device=0 CAN Access Peer Device=7
Device=0 CAN Access Peer Device=8
Device=0 CAN Access Peer Device=9
Device=0 CAN Access Peer Device=10
Device=0 CAN Access Peer Device=11
Device=0 CAN Access Peer Device=12
Device=0 CAN Access Peer Device=13
Device=0 CAN Access Peer Device=14
Device=0 CAN Access Peer Device=15
Device=1 CAN Access Peer Device=0
Device=1 CAN Access Peer Device=2
Device=1 CAN Access Peer Device=3
Device=1 CAN Access Peer Device=4
Device=1 CAN Access Peer Device=5
Device=1 CAN Access Peer Device=6
Device=1 CAN Access Peer Device=7
Device=1 CAN Access Peer Device=8
Device=1 CAN Access Peer Device=9
Device=1 CAN Access Peer Device=10
Device=1 CAN Access Peer Device=11
Device=1 CAN Access Peer Device=12
Device=1 CAN Access Peer Device=13
Device=1 CAN Access Peer Device=14
Device=1 CAN Access Peer Device=15
Device=2 CAN Access Peer Device=0
Device=2 CAN Access Peer Device=1
Device=2 CAN Access Peer Device=3
Device=2 CAN Access Peer Device=4
Device=2 CAN Access Peer Device=5
Device=2 CAN Access Peer Device=6
Device=2 CAN Access Peer Device=7
Device=2 CAN Access Peer Device=8
Device=2 CAN Access Peer Device=9
Device=2 CAN Access Peer Device=10
Device=2 CAN Access Peer Device=11
Device=2 CAN Access Peer Device=12
Device=2 CAN Access Peer Device=13
Device=2 CAN Access Peer Device=14
Device=2 CAN Access Peer Device=15
Device=3 CAN Access Peer Device=0
Device=3 CAN Access Peer Device=1
Device=3 CAN Access Peer Device=2
Device=3 CAN Access Peer Device=4
Device=3 CAN Access Peer Device=5
Device=3 CAN Access Peer Device=6
Device=3 CAN Access Peer Device=7
Device=3 CAN Access Peer Device=8
Device=3 CAN Access Peer Device=9
Device=3 CAN Access Peer Device=10
Device=3 CAN Access Peer Device=11
Device=3 CAN Access Peer Device=12
Device=3 CAN Access Peer Device=13
Device=3 CAN Access Peer Device=14
Device=3 CAN Access Peer Device=15
Device=4 CAN Access Peer Device=0
Device=4 CAN Access Peer Device=1
Device=4 CAN Access Peer Device=2
Device=4 CAN Access Peer Device=3
Device=4 CAN Access Peer Device=5
Device=4 CAN Access Peer Device=6
Device=4 CAN Access Peer Device=7
Device=4 CAN Access Peer Device=8
Device=4 CAN Access Peer Device=9
Device=4 CAN Access Peer Device=10
Device=4 CAN Access Peer Device=11
Device=4 CAN Access Peer Device=12
Device=4 CAN Access Peer Device=13
Device=4 CAN Access Peer Device=14
Device=4 CAN Access Peer Device=15
Device=5 CAN Access Peer Device=0
Device=5 CAN Access Peer Device=1
Device=5 CAN Access Peer Device=2
Device=5 CAN Access Peer Device=3
Device=5 CAN Access Peer Device=4
Device=5 CAN Access Peer Device=6
Device=5 CAN Access Peer Device=7
Device=5 CAN Access Peer Device=8
Device=5 CAN Access Peer Device=9
Device=5 CAN Access Peer Device=10
Device=5 CAN Access Peer Device=11
Device=5 CAN Access Peer Device=12
Device=5 CAN Access Peer Device=13
Device=5 CAN Access Peer Device=14
Device=5 CAN Access Peer Device=15
Device=6 CAN Access Peer Device=0
Device=6 CAN Access Peer Device=1
Device=6 CAN Access Peer Device=2
Device=6 CAN Access Peer Device=3
Device=6 CAN Access Peer Device=4
Device=6 CAN Access Peer Device=5
Device=6 CAN Access Peer Device=7
Device=6 CAN Access Peer Device=8
Device=6 CAN Access Peer Device=9
Device=6 CAN Access Peer Device=10
Device=6 CAN Access Peer Device=11
Device=6 CAN Access Peer Device=12
Device=6 CAN Access Peer Device=13
Device=6 CAN Access Peer Device=14
Device=6 CAN Access Peer Device=15
Device=7 CAN Access Peer Device=0
Device=7 CAN Access Peer Device=1
Device=7 CAN Access Peer Device=2
Device=7 CAN Access Peer Device=3
Device=7 CAN Access Peer Device=4
Device=7 CAN Access Peer Device=5
Device=7 CAN Access Peer Device=6
Device=7 CAN Access Peer Device=8
Device=7 CAN Access Peer Device=9
Device=7 CAN Access Peer Device=10
Device=7 CAN Access Peer Device=11
Device=7 CAN Access Peer Device=12
Device=7 CAN Access Peer Device=13
Device=7 CAN Access Peer Device=14
Device=7 CAN Access Peer Device=15
Device=8 CAN Access Peer Device=0
Device=8 CAN Access Peer Device=1
Device=8 CAN Access Peer Device=2
Device=8 CAN Access Peer Device=3
Device=8 CAN Access Peer Device=4
Device=8 CAN Access Peer Device=5
Device=8 CAN Access Peer Device=6
Device=8 CAN Access Peer Device=7
Device=8 CAN Access Peer Device=9
Device=8 CAN Access Peer Device=10
Device=8 CAN Access Peer Device=11
Device=8 CAN Access Peer Device=12
Device=8 CAN Access Peer Device=13
Device=8 CAN Access Peer Device=14
Device=8 CAN Access Peer Device=15
Device=9 CAN Access Peer Device=0
Device=9 CAN Access Peer Device=1
Device=9 CAN Access Peer Device=2
Device=9 CAN Access Peer Device=3
Device=9 CAN Access Peer Device=4
Device=9 CAN Access Peer Device=5
Device=9 CAN Access Peer Device=6
Device=9 CAN Access Peer Device=7
Device=9 CAN Access Peer Device=8
Device=9 CAN Access Peer Device=10
Device=9 CAN Access Peer Device=11
Device=9 CAN Access Peer Device=12
Device=9 CAN Access Peer Device=13
Device=9 CAN Access Peer Device=14
Device=9 CAN Access Peer Device=15
Device=10 CAN Access Peer Device=0
Device=10 CAN Access Peer Device=1
Device=10 CAN Access Peer Device=2
Device=10 CAN Access Peer Device=3
Device=10 CAN Access Peer Device=4
Device=10 CAN Access Peer Device=5
Device=10 CAN Access Peer Device=6
Device=10 CAN Access Peer Device=7
Device=10 CAN Access Peer Device=8
Device=10 CAN Access Peer Device=9
Device=10 CAN Access Peer Device=11
Device=10 CAN Access Peer Device=12
Device=10 CAN Access Peer Device=13
Device=10 CAN Access Peer Device=14
Device=10 CAN Access Peer Device=15
Device=11 CAN Access Peer Device=0
Device=11 CAN Access Peer Device=1
Device=11 CAN Access Peer Device=2
Device=11 CAN Access Peer Device=3
Device=11 CAN Access Peer Device=4
Device=11 CAN Access Peer Device=5
Device=11 CAN Access Peer Device=6
Device=11 CAN Access Peer Device=7
Device=11 CAN Access Peer Device=8
Device=11 CAN Access Peer Device=9
Device=11 CAN Access Peer Device=10
Device=11 CAN Access Peer Device=12
Device=11 CAN Access Peer Device=13
Device=11 CAN Access Peer Device=14
Device=11 CAN Access Peer Device=15
Device=12 CAN Access Peer Device=0
Device=12 CAN Access Peer Device=1
Device=12 CAN Access Peer Device=2
Device=12 CAN Access Peer Device=3
Device=12 CAN Access Peer Device=4
Device=12 CAN Access Peer Device=5
Device=12 CAN Access Peer Device=6
Device=12 CAN Access Peer Device=7
Device=12 CAN Access Peer Device=8
Device=12 CAN Access Peer Device=9
Device=12 CAN Access Peer Device=10
Device=12 CAN Access Peer Device=11
Device=12 CAN Access Peer Device=13
Device=12 CAN Access Peer Device=14
Device=12 CAN Access Peer Device=15
Device=13 CAN Access Peer Device=0
Device=13 CAN Access Peer Device=1
Device=13 CAN Access Peer Device=2
Device=13 CAN Access Peer Device=3
Device=13 CAN Access Peer Device=4
Device=13 CAN Access Peer Device=5
Device=13 CAN Access Peer Device=6
Device=13 CAN Access Peer Device=7
Device=13 CAN Access Peer Device=8
Device=13 CAN Access Peer Device=9
Device=13 CAN Access Peer Device=10
Device=13 CAN Access Peer Device=11
Device=13 CAN Access Peer Device=12
Device=13 CAN Access Peer Device=14
Device=13 CAN Access Peer Device=15
Device=14 CAN Access Peer Device=0
Device=14 CAN Access Peer Device=1
Device=14 CAN Access Peer Device=2
Device=14 CAN Access Peer Device=3
Device=14 CAN Access Peer Device=4
Device=14 CAN Access Peer Device=5
Device=14 CAN Access Peer Device=6
Device=14 CAN Access Peer Device=7
Device=14 CAN Access Peer Device=8
Device=14 CAN Access Peer Device=9
Device=14 CAN Access Peer Device=10
Device=14 CAN Access Peer Device=11
Device=14 CAN Access Peer Device=12
Device=14 CAN Access Peer Device=13
Device=14 CAN Access Peer Device=15
Device=15 CAN Access Peer Device=0
Device=15 CAN Access Peer Device=1
Device=15 CAN Access Peer Device=2
Device=15 CAN Access Peer Device=3
Device=15 CAN Access Peer Device=4
Device=15 CAN Access Peer Device=5
Device=15 CAN Access Peer Device=6
Device=15 CAN Access Peer Device=7
Device=15 CAN Access Peer Device=8
Device=15 CAN Access Peer Device=9
Device=15 CAN Access Peer Device=10
Device=15 CAN Access Peer Device=11
Device=15 CAN Access Peer Device=12
Device=15 CAN Access Peer Device=13
Device=15 CAN Access Peer Device=14
***NOTE: In case a device doesn't have P2P access to other one, it falls back to normal memcopy procedure.
So you can see lesser Bandwidth (GB/s) and unstable Latency (us) in those cases.
P2P Connectivity Matrix
D\D 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
4 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
5 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
6 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
7 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
8 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
9 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
10 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
11 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
12 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
13 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
14 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
15 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
Unidirectional P2P=Disabled Bandwidth Matrix (GB/s)
D\D 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
0 1165.18 13.82 13.35 12.16 12.13 11.98 11.92 11.86 11.83 11.83 11.80 11.96 11.80 11.80 11.96 11.78
1 13.96 1183.71 13.60 13.58 11.96 11.86 11.93 11.87 11.84 11.84 11.81 11.87 11.74 11.81 11.87 11.79
2 13.82 13.34 1277.60 12.39 12.33 12.07 11.93 11.86 11.84 11.84 11.81 11.87 11.74 11.80 11.87 11.79
3 13.62 13.64 13.61 1157.41 12.42 11.86 11.93 11.86 11.83 11.83 11.81 11.87 11.74 11.81 11.86 11.78
4 13.59 13.86 14.02 12.59 1288.13 11.74 11.81 11.75 11.84 11.84 11.81 11.87 11.74 11.81 11.87 11.78
5 13.50 13.59 13.64 12.71 12.02 1290.26 11.81 11.75 11.84 11.83 11.81 11.87 11.74 11.81 11.87 11.79
6 13.49 13.58 12.68 11.94 12.02 12.04 1287.07 11.75 11.83 11.83 11.81 11.87 11.74 11.80 11.87 11.79
7 13.51 14.02 14.35 14.69 13.61 12.04 12.10 1292.39 11.83 11.83 11.81 11.87 11.74 11.80 11.86 11.78
8 13.35 14.13 14.24 14.42 12.71 11.86 12.22 12.19 1289.19 11.72 11.69 11.76 11.74 11.80 11.87 11.78
9 13.51 13.44 13.44 12.85 11.79 11.87 11.98 12.19 12.05 1288.13 11.70 11.76 11.74 11.81 11.87 11.79
10 13.48 13.75 13.73 11.91 11.79 11.86 11.93 11.87 12.05 12.06 1290.26 11.76 11.74 11.81 11.87 11.79
11 13.49 13.92 14.19 14.14 12.71 11.87 11.93 11.87 11.74 11.73 12.02 1287.07 11.74 11.80 11.87 11.79
12 13.52 13.65 13.76 12.52 11.79 11.87 11.93 11.87 11.84 11.85 11.87 12.17 1288.13 11.70 11.76 11.67
13 13.40 13.68 13.64 12.86 11.80 11.87 11.93 11.88 11.84 11.84 11.81 11.88 11.94 1289.19 11.52 11.68
14 13.45 12.58 12.43 12.44 11.55 11.86 11.93 11.87 11.84 11.73 11.81 11.88 11.63 12.05 1291.32 11.67
15 12.85 12.42 11.82 11.87 11.80 11.86 11.75 11.87 11.84 11.84 11.81 11.63 11.62 11.78 12.05 1289.19
Unidirectional P2P=Enabled Bandwidth (P2P Writes) Matrix (GB/s)
D\D 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
0 1166.04 14.26 13.51 13.48 13.71 14.26 14.26 13.98 13.71 13.43 13.98 14.26 13.98 13.46 16.72 25.22
1 16.88 1190.02 13.51 13.48 13.71 14.26 14.26 13.99 13.71 13.43 13.98 14.26 13.98 13.46 14.26 14.48
2 16.08 16.07 1157.41 13.48 13.72 14.26 14.26 13.98 13.71 13.43 13.98 14.26 13.98 13.46 14.26 13.43
3 13.71 16.39 20.72 1270.33 13.72 14.26 14.26 13.99 13.71 13.43 13.98 14.26 13.98 13.46 14.26 13.43
4 13.71 14.26 21.10 21.10 1274.47 14.26 14.26 13.99 13.71 13.43 13.98 14.26 13.98 13.46 14.26 13.43
5 13.71 14.26 13.49 25.21 25.22 1303.17 14.26 13.99 13.71 13.44 13.98 14.26 13.98 13.46 14.26 13.43
6 13.71 14.26 13.51 13.43 23.02 23.09 1301.00 13.99 13.71 13.43 13.98 14.26 13.98 13.46 14.26 13.43
7 13.71 14.26 13.51 13.48 13.72 25.22 25.22 1299.92 13.71 13.43 13.98 14.26 13.98 13.46 14.26 13.43
8 13.71 14.26 13.52 13.48 13.71 14.26 25.22 25.22 1298.84 13.43 13.98 14.26 13.98 13.46 14.26 13.43
9 13.71 14.26 13.51 13.48 13.71 14.26 14.26 25.22 25.22 1301.00 13.98 14.26 13.98 13.46 14.26 13.43
10 13.71 14.26 13.52 13.48 13.71 14.26 14.26 13.98 25.22 25.22 1301.00 14.26 13.98 13.47 14.26 13.43
11 13.71 14.26 13.51 13.48 13.72 14.26 14.26 13.99 13.71 25.22 25.22 1303.17 13.98 13.46 14.26 13.43
12 13.71 14.26 13.51 13.48 13.71 14.26 14.26 13.99 13.71 13.43 25.21 25.22 1302.08 13.46 14.26 13.43
13 13.71 14.26 13.52 13.48 13.71 14.26 14.26 13.98 13.71 13.43 13.98 25.22 25.22 1299.92 14.26 13.43
14 13.71 14.26 13.51 13.49 13.71 14.26 14.26 13.99 13.71 13.43 13.98 14.26 25.22 25.22 1295.61 13.43
15 13.71 14.26 13.52 13.49 13.72 14.26 14.26 13.98 13.71 13.43 13.98 14.26 13.98 25.22 25.22 1299.92
Bidirectional P2P=Disabled Bandwidth Matrix (GB/s)
D\D 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
0 1193.66 15.17 14.94 14.21 14.57 14.65 14.58 14.55 14.55 14.60 14.63 14.38 14.47 14.28 14.48 13.45
1 14.62 1282.84 15.26 14.56 14.42 14.82 14.75 14.69 14.69 14.92 14.75 14.49 14.66 14.50 14.61 14.60
2 14.49 14.64 1263.65 13.85 13.66 13.72 13.55 14.80 14.74 13.33 14.70 13.75 14.69 14.96 14.19 14.56
3 15.34 14.62 14.29 1309.17 14.47 14.82 13.66 14.75 14.69 13.44 13.48 13.61 13.37 13.47 13.37 13.45
4 15.38 13.84 14.66 13.62 1308.08 14.47 14.01 14.17 14.74 13.71 13.42 13.69 13.38 13.51 13.40 13.82
5 15.50 14.87 14.88 13.59 13.83 1307.53 13.99 14.07 14.74 13.54 13.58 13.73 13.79 14.59 13.64 13.32
6 14.54 13.66 13.65 13.70 13.82 14.01 1309.72 14.27 14.68 13.73 13.59 13.74 14.73 14.65 14.88 13.89
7 15.35 13.70 13.82 14.67 14.30 14.49 14.05 1311.92 14.60 13.63 14.76 13.70 14.47 14.63 14.53 13.78
8 15.48 14.57 13.99 14.64 14.69 14.43 13.56 13.56 1308.08 13.96 14.33 14.03 14.38 14.69 14.78 13.52
9 14.61 13.74 13.38 14.66 14.80 14.52 13.69 13.61 13.98 1310.27 14.46 14.00 14.71 14.69 14.58 13.60
10 15.56 13.90 13.69 14.57 14.68 13.58 13.74 13.49 14.02 13.97 1308.63 13.97 14.74 14.68 13.47 13.53
11 14.59 13.57 13.58 13.73 14.55 13.58 14.75 13.71 13.84 14.00 14.00 1308.63 14.64 14.49 13.61 13.66
12 15.33 13.73 13.46 13.35 14.53 13.48 14.56 13.42 13.39 13.55 13.50 13.46 1309.72 13.87 13.88 14.01
13 15.46 14.96 13.51 14.63 14.68 14.72 13.97 13.72 13.65 13.53 13.64 13.79 13.95 1310.27 14.46 13.91
14 15.61 14.63 13.66 14.70 14.41 14.46 13.64 13.43 13.42 13.75 13.65 13.55 13.90 13.98 1307.53 13.89
15 14.56 14.61 13.73 14.50 14.52 14.49 13.78 13.75 14.71 13.44 13.60 13.49 14.13 13.92 13.97 1308.63
Bidirectional P2P=Enabled Bandwidth Matrix (GB/s)
D\D 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
0 1308.63 28.51 50.38 32.91 37.36 28.51 50.19 27.96 27.41 50.19 50.18 50.18 27.96 26.92 37.82 50.16
1 28.50 1212.18 27.03 26.95 27.42 28.51 28.52 27.96 27.41 26.86 27.96 50.17 27.96 26.92 28.51 41.88
2 27.02 27.65 1250.50 26.96 27.34 28.51 28.51 27.96 27.41 26.86 27.96 28.51 27.96 26.92 28.51 26.86
3 26.95 26.95 26.94 1182.82 27.43 28.51 28.51 27.96 27.41 26.86 27.96 28.51 27.96 26.91 28.51 26.86
4 27.41 27.41 34.45 41.90 1310.82 28.51 28.52 27.97 27.41 26.86 27.96 28.51 27.96 26.92 28.51 26.86
5 27.40 28.50 27.01 34.19 50.40 1304.80 28.52 27.97 27.41 26.86 27.96 28.51 27.96 26.91 28.51 26.86
6 27.40 28.50 27.01 26.86 48.76 48.77 1307.53 27.97 27.41 26.86 27.96 28.51 27.96 26.93 28.51 26.86
7 27.41 27.95 27.02 26.95 27.43 46.36 50.40 1309.72 27.41 26.86 27.96 28.51 27.96 26.93 28.51 26.86
8 27.40 27.41 27.00 26.95 27.43 28.51 50.18 50.18 1308.08 26.87 27.97 28.52 27.96 26.92 28.51 26.86
9 26.85 26.86 26.85 26.89 27.43 28.51 28.51 50.18 50.42 1307.53 27.97 28.52 27.96 26.91 28.51 26.86
10 27.40 27.95 27.00 26.94 27.42 28.51 28.51 27.96 50.40 50.40 1308.63 28.52 27.96 26.92 28.51 26.86
11 27.40 28.50 27.00 26.95 27.43 28.51 28.51 27.97 27.42 50.41 50.40 1305.89 27.96 26.91 28.51 26.86
12 27.41 27.95 27.00 26.96 27.42 28.51 28.51 27.96 27.41 26.86 50.18 50.17 1308.08 26.92 28.52 26.87
13 26.90 26.91 27.01 26.95 27.42 28.51 28.51 27.96 27.41 26.86 27.96 50.18 50.40 1306.44 28.51 26.87
14 27.41 28.50 27.00 26.95 27.43 28.51 28.51 27.96 27.42 26.86 27.96 28.51 50.40 50.41 1306.98 26.87
15 26.85 24.39 27.00 26.94 27.43 28.51 28.51 27.96 27.41 26.86 27.96 28.51 27.96 50.40 50.38 1305.89
P2P=Disabled Latency Matrix (us)
GPU 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
0 4.37 31.06 31.05 31.17 31.05 31.03 31.06 31.06 31.06 31.06 31.03 31.04 31.07 30.96 31.06 30.92
1 31.14 4.39 30.90 30.92 31.03 30.90 30.90 31.44 31.05 30.89 31.02 31.01 30.87 31.10 30.79 30.83
2 30.93 31.03 4.45 31.04 30.94 31.05 31.03 31.07 31.06 31.03 30.92 31.04 31.03 31.05 30.80 31.12
3 31.03 31.01 31.01 4.43 31.03 31.03 31.05 30.90 31.03 31.15 30.94 31.04 31.04 42.33 31.04 30.89
4 30.93 31.02 31.16 31.05 4.57 31.04 31.04 31.05 31.07 42.58 31.04 31.05 31.04 31.05 31.01 31.03
5 31.03 31.01 31.29 33.11 31.14 4.34 30.99 31.03 31.04 31.03 31.06 31.02 31.02 31.04 30.91 30.69
6 31.02 31.03 31.02 31.13 31.23 31.02 4.25 31.02 31.03 31.05 31.03 31.05 31.03 31.02 30.02 30.64
7 31.12 31.01 31.04 31.03 31.03 31.03 31.01 4.16 31.05 31.02 30.92 30.91 30.89 30.92 31.03 31.04
8 31.04 31.01 30.92 31.02 30.92 31.01 31.15 31.16 4.36 31.03 30.91 30.89 30.91 31.02 31.03 31.03
9 31.04 31.02 31.02 31.02 31.02 31.13 31.15 31.02 31.13 4.44 31.04 31.03 31.06 31.03 31.02 31.02
10 31.05 31.06 31.01 31.05 31.03 31.04 31.04 31.19 31.04 31.15 4.33 31.03 31.31 31.05 31.17 30.93
11 31.15 30.73 31.02 31.12 31.03 30.74 30.97 31.03 31.14 31.04 31.01 4.18 30.91 31.11 30.99 30.62
12 30.93 31.02 31.14 31.02 31.03 31.04 31.04 31.03 31.04 31.03 31.00 31.02 4.34 31.03 31.00 30.91
13 31.04 31.14 31.03 31.04 31.14 31.03 31.14 31.06 31.02 31.01 31.02 31.13 31.02 4.45 31.03 30.96
14 31.87 30.58 32.01 30.72 30.62 30.57 31.32 30.57 31.74 30.58 30.62 30.57 30.63 30.58 4.39 31.29
15 30.58 30.87 30.58 30.58 30.96 30.59 30.72 31.89 30.59 30.59 31.33 31.00 30.57 30.61 30.60 2.43
CPU 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
0 2.62 6.04 5.94 5.87 5.82 5.76 5.83 5.80 5.74 5.69 5.75 5.76 5.68 5.68 5.71 5.78
1 5.94 2.46 6.00 5.89 5.81 5.78 5.88 5.75 5.72 5.68 5.72 5.73 5.69 5.66 5.69 5.78
2 5.89 5.88 2.51 5.92 5.81 5.79 5.88 5.78 5.71 5.71 5.75 5.72 5.72 5.70 5.70 5.79
3 5.88 5.83 5.88 2.49 5.92 5.80 5.93 5.83 5.75 5.72 5.78 5.79 5.70 5.70 5.76 5.78
4 5.85 5.78 5.85 5.82 2.47 5.82 5.85 5.76 5.72 5.70 5.73 5.71 5.67 5.69 5.68 5.76
5 5.80 5.77 5.80 5.82 5.75 2.44 5.92 5.80 5.74 5.72 5.81 5.73 5.70 5.68 5.71 5.74
6 5.85 5.83 5.89 5.90 5.82 5.83 2.48 5.92 5.86 5.79 5.86 5.81 5.79 5.72 5.77 5.83
7 5.80 5.76 5.85 5.85 5.74 5.79 5.88 2.47 5.82 5.76 5.81 5.78 5.74 5.70 5.73 5.78
8 5.78 5.74 5.82 5.85 5.74 5.78 5.86 5.80 2.44 5.82 5.87 5.81 5.82 5.75 5.75 5.80
9 5.74 5.72 5.80 5.79 5.74 5.75 5.83 5.79 5.75 2.46 5.86 5.82 5.78 5.71 5.76 5.77
10 5.75 5.77 5.82 5.78 5.77 5.80 5.84 5.86 5.77 5.80 2.48 5.87 5.80 5.76 5.82 5.83
11 5.73 5.67 5.75 5.76 5.69 5.71 5.81 5.76 5.73 5.73 5.80 2.46 5.79 5.75 5.77 5.83
12 5.72 5.66 5.72 5.72 5.66 5.67 5.78 5.78 5.68 5.74 5.80 5.79 2.46 5.78 5.80 5.82
13 5.75 5.67 5.72 5.72 5.69 5.69 5.78 5.76 5.72 5.75 5.80 5.81 5.78 2.47 5.80 5.81
14 5.71 5.65 5.74 5.69 5.66 5.69 5.76 5.73 5.71 5.72 5.77 5.80 5.79 5.76 2.48 5.82
15 5.78 5.72 5.77 5.77 5.72 5.73 5.80 5.80 5.76 5.77 5.86 5.83 5.80 5.82 5.88 2.48
P2P=Enabled Latency (P2P Writes) Matrix (us)
GPU 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
0 4.37 4.02 3.99 3.98 3.97 3.99 4.01 4.01 3.99 3.98 4.00 4.01 4.02 3.98 3.99 3.99
1 3.99 4.38 3.93 3.96 3.87 3.91 3.94 3.92 3.95 3.91 3.97 3.93 3.98 3.94 3.97 3.93
2 3.99 3.96 4.46 4.00 3.97 3.97 4.01 3.97 4.00 3.99 3.98 3.98 3.99 3.99 3.97 3.98
3 3.99 4.00 3.99 4.47 3.96 3.96 4.00 3.97 3.99 3.97 3.98 3.97 3.99 3.99 3.98 3.99
4 4.01 3.98 3.97 3.98 4.58 3.99 3.98 3.99 4.01 4.01 3.97 4.02 4.01 3.98 3.97 3.96
5 4.01 4.01 3.98 3.98 4.00 4.34 4.00 3.99 3.97 3.98 3.98 4.00 4.01 4.00 3.99 3.99
6 4.00 3.97 4.00 3.99 4.00 4.01 4.26 3.99 3.97 3.99 4.01 4.01 4.01 3.99 4.00 4.00
7 3.99 3.98 4.00 3.97 3.98 3.98 3.98 4.14 4.00 3.96 3.99 3.97 3.99 3.99 3.98 3.97
8 3.99 3.99 4.00 3.98 3.99 4.00 3.98 3.98 4.36 3.99 3.96 3.98 4.01 4.01 4.01 3.98
9 3.99 3.99 3.99 3.97 4.00 3.98 3.99 3.97 3.99 4.44 3.96 4.00 3.99 4.00 3.97 3.98
10 3.99 3.95 4.02 3.99 3.96 3.99 3.97 4.01 3.98 3.98 4.34 4.02 4.02 4.00 3.97 4.01
11 3.96 3.93 3.97 3.97 3.98 3.99 4.00 3.97 3.98 3.99 3.97 4.18 3.98 3.98 3.97 3.98
12 3.99 3.97 4.01 4.00 3.96 3.98 4.00 3.99 3.97 3.97 3.98 4.00 4.35 3.98 3.99 4.00
13 3.99 3.99 4.01 3.98 3.98 3.97 3.96 3.98 3.98 3.98 3.98 3.98 3.98 4.45 3.97 3.98
14 3.99 3.95 3.98 3.96 3.95 3.98 3.98 3.99 3.96 3.96 3.98 3.99 3.97 3.97 4.39 3.97
15 3.99 4.01 3.97 3.98 4.00 4.00 4.00 4.02 3.97 3.98 4.00 3.97 4.02 3.99 3.97 4.25
CPU 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
0 2.56 1.77 1.78 1.83 1.80 1.79 1.77 1.77 1.81 1.79 1.79 1.80 1.81 1.80 1.80 1.82
1 1.84 2.56 1.80 1.81 1.80 1.81 1.80 1.80 1.82 1.81 1.80 1.80 1.79 1.79 1.79 1.80
2 1.89 1.84 2.59 1.85 1.84 1.83 1.81 1.82 1.81 1.82 1.82 1.82 1.82 1.83 1.83 1.84
3 1.88 1.84 1.85 2.59 1.83 1.84 1.86 1.84 1.81 1.81 1.82 1.84 1.83 1.83 1.83 1.83
4 1.85 1.81 1.82 1.82 2.57 1.82 1.80 1.80 1.79 1.81 1.79 1.81 1.80 1.81 1.81 1.84
5 1.88 1.84 1.83 1.85 1.84 2.59 1.82 1.84 1.85 1.85 1.85 1.83 1.81 1.82 1.82 1.87
6 1.89 1.84 1.85 1.84 1.84 1.85 2.52 1.79 1.85 1.83 1.83 1.84 1.84 1.85 1.83 1.84
7 1.88 1.83 1.85 1.86 1.84 1.86 1.85 2.59 1.84 1.87 1.85 1.89 1.89 1.88 1.85 1.85
8 1.88 1.87 1.86 1.87 1.86 1.92 1.86 1.87 2.56 1.86 1.86 1.86 1.87 1.87 1.86 1.90
9 1.90 1.87 1.90 1.91 1.90 1.91 1.90 1.90 1.90 2.55 1.88 1.88 1.87 1.92 1.90 1.89
10 1.92 1.89 1.92 1.92 1.90 1.93 1.90 1.90 1.89 1.89 2.57 1.89 1.91 1.91 1.89 1.90
11 1.91 1.87 1.89 1.89 1.87 1.88 1.89 1.87 1.87 1.89 1.90 2.59 1.88 1.87 1.89 1.89
12 1.90 1.90 1.91 1.92 1.90 1.93 1.88 1.88 1.88 1.88 1.88 1.89 2.56 1.88 1.89 1.89
13 1.95 1.91 1.91 1.92 1.92 1.92 1.92 1.93 1.95 1.94 1.95 1.94 1.94 2.54 1.92 1.92
14 1.99 1.94 1.92 1.91 1.94 1.92 1.93 1.92 1.93 1.92 1.94 1.93 1.92 1.93 2.58 1.95
15 2.00 1.96 1.95 1.95 1.96 1.95 1.96 1.96 1.96 1.95 1.98 1.94 1.99 1.98 1.99 2.57
NOTE: The CUDA Samples are not meant for performance measurements. Results may vary when GPU Boost is enabled.