Microsoft Windows [Version 10.0.19042.928] (c) Microsoft Corporation. All rights reserved. C:\Windows\system32>cd C:\ProgramData\NVIDIA Corporation\CUDA Samples\v11.3\bin\win64\Debug C:\ProgramData\NVIDIA Corporation\CUDA Samples\v11.3\bin\win64\Debug>nvidia-smi Tue Apr 20 18:09:00 2021 +-----------------------------------------------------------------------------+ | NVIDIA-SMI 466.11 Driver Version: 466.11 CUDA Version: 11.3 | |-------------------------------+----------------------+----------------------+ | GPU Name TCC/WDDM | Bus-Id Disp.A | Volatile Uncorr. ECC | | Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. | | | | MIG M. | |===============================+======================+======================| | 0 NVIDIA TITAN RTX WDDM | 00000000:41:00.0 On | N/A | | 41% 37C P8 22W / 280W | 784MiB / 24576MiB | 1% Default | | | | N/A | +-------------------------------+----------------------+----------------------+ | 1 NVIDIA TITAN RTX WDDM | 00000000:61:00.0 Off | N/A | | 41% 45C P8 34W / 280W | 784MiB / 24576MiB | 0% Default | | | | N/A | +-------------------------------+----------------------+----------------------+ +-----------------------------------------------------------------------------+ | Processes: | | GPU GI CI PID Type Process name GPU Memory | | ID ID Usage | |=============================================================================| | 0 N/A N/A 2084 C+G Insufficient Permissions N/A | | 0 N/A N/A 3004 C+G C:\Windows\explorer.exe N/A | | 0 N/A N/A 4820 C+G ...kyb3d8bbwe\HxAccounts.exe N/A | | 0 N/A N/A 6048 C+G ...n\AcPowerNotification.exe N/A | | 0 N/A N/A 7300 C+G ...5n1h2txyewy\SearchApp.exe N/A | | 0 N/A N/A 7700 C+G ...artMenuExperienceHost.exe N/A | | 0 N/A N/A 8744 C+G ...b3d8bbwe\WinStore.App.exe N/A | | 0 N/A N/A 8776 C+G ...y\ShellExperienceHost.exe N/A | | 0 N/A N/A 9140 C+G ...cw5n1h2txyewy\LockApp.exe N/A | | 0 N/A N/A 15836 C+G ...wAgent\ArmourySwAgent.exe N/A | | 0 N/A N/A 16024 C+G ...nputApp\TextInputHost.exe N/A | | 0 N/A N/A 19216 C+G ...ekyb3d8bbwe\HxOutlook.exe N/A | | 1 N/A N/A 2084 C+G Insufficient Permissions N/A | | 1 N/A N/A 3004 C+G C:\Windows\explorer.exe N/A | | 1 N/A N/A 4820 C+G ...kyb3d8bbwe\HxAccounts.exe N/A | | 1 N/A N/A 6048 C+G ...n\AcPowerNotification.exe N/A | | 1 N/A N/A 7300 C+G ...5n1h2txyewy\SearchApp.exe N/A | | 1 N/A N/A 7700 C+G ...artMenuExperienceHost.exe N/A | | 1 N/A N/A 8744 C+G ...b3d8bbwe\WinStore.App.exe N/A | | 1 N/A N/A 8776 C+G ...y\ShellExperienceHost.exe N/A | | 1 N/A N/A 9140 C+G ...cw5n1h2txyewy\LockApp.exe N/A | | 1 N/A N/A 15836 C+G ...wAgent\ArmourySwAgent.exe N/A | | 1 N/A N/A 16024 C+G ...nputApp\TextInputHost.exe N/A | | 1 N/A N/A 19216 C+G ...ekyb3d8bbwe\HxOutlook.exe N/A | +-----------------------------------------------------------------------------+ C:\ProgramData\NVIDIA Corporation\CUDA Samples\v11.3\bin\win64\Debug>nvidia-smi nvlink -c GPU 0: NVIDIA TITAN RTX (UUID: GPU-7fb51c1d-c1e7-35cc-aad7-66971f05ddb7) Link 0, P2P is supported: true Link 0, Access to system memory supported: true Link 0, P2P atomics supported: true Link 0, System memory atomics supported: true Link 0, SLI is supported: true Link 0, Link is supported: false Link 1, P2P is supported: true Link 1, Access to system memory supported: true Link 1, P2P atomics supported: true Link 1, System memory atomics supported: true Link 1, SLI is supported: true Link 1, Link is supported: false GPU 1: NVIDIA TITAN RTX (UUID: GPU-5a71d61e-f130-637a-b33d-4df555b0ed88) Link 0, P2P is supported: true Link 0, Access to system memory supported: true Link 0, P2P atomics supported: true Link 0, System memory atomics supported: true Link 0, SLI is supported: true Link 0, Link is supported: false Link 1, P2P is supported: true Link 1, Access to system memory supported: true Link 1, P2P atomics supported: true Link 1, System memory atomics supported: true Link 1, SLI is supported: true Link 1, Link is supported: false C:\ProgramData\NVIDIA Corporation\CUDA Samples\v11.3\bin\win64\Debug>nvcc -V nvcc: NVIDIA (R) Cuda compiler driver Copyright (c) 2005-2021 NVIDIA Corporation Built on Sun_Mar_21_19:24:09_Pacific_Daylight_Time_2021 Cuda compilation tools, release 11.3, V11.3.58 Build cuda_11.3.r11.3/compiler.29745058_0 C:\ProgramData\NVIDIA Corporation\CUDA Samples\v11.3\bin\win64\Debug>simpleP2P [simpleP2P] - Starting... Checking for multiple GPUs... CUDA-capable device count: 2 Checking GPU(s) for support of peer to peer memory access... > Peer access from NVIDIA TITAN RTX (GPU0) -> NVIDIA TITAN RTX (GPU1) : Yes > Peer access from NVIDIA TITAN RTX (GPU1) -> NVIDIA TITAN RTX (GPU0) : Yes Enabling peer access between GPU0 and GPU1... Allocating buffers (64MB on GPU0, GPU1 and CPU Host)... Creating event handles... cudaMemcpyPeer / cudaMemcpy between GPU0 and GPU1: 40.86GB/s Preparing host buffer and memcpy to GPU0... Run kernel on GPU1, taking source data from GPU0 and writing to GPU1... Run kernel on GPU0, taking source data from GPU1 and writing to GPU0... Copy data back to host from GPU0 and verify results... Disabling peer access... Shutting down... Test passed C:\ProgramData\NVIDIA Corporation\CUDA Samples\v11.3\bin\win64\Debug>