cuda-samples/bin/x86_64/linux/release/APM_p2pBandwidthLatencyTest.txt
2023-03-01 01:41:29 +00:00

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[P2P (Peer-to-Peer) GPU Bandwidth Latency Test]
Device: 0, NVIDIA H100 PCIe, pciBusID: c1, pciDeviceID: 0, pciDomainID:0
***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
0 1
Unidirectional P2P=Disabled Bandwidth Matrix (GB/s)
D\D 0
0 1628.72
Unidirectional P2P=Enabled Bandwidth (P2P Writes) Matrix (GB/s)
D\D 0
0 1625.75
Bidirectional P2P=Disabled Bandwidth Matrix (GB/s)
D\D 0
0 1668.11
Bidirectional P2P=Enabled Bandwidth Matrix (GB/s)
D\D 0
0 1668.39
P2P=Disabled Latency Matrix (us)
GPU 0
0 2.67
CPU 0
0 2.04
P2P=Enabled Latency (P2P Writes) Matrix (us)
GPU 0
0 2.68
CPU 0
0 2.02
NOTE: The CUDA Samples are not meant for performance measurements. Results may vary when GPU Boost is enabled.