GPU Status
Contents
Pin
GPU Status
One of the main hardware components is the GPU. Here, a CUDA test is conducted to exercise the GPU unit and shows usage with a tegrastats output.
Check CUDA installation
1. Check if CUDA is installed on the board:
ls /usr/local/cuda/
2. If not, execute the following command:
sudo apt install cuda-toolkit*
3. Add the following lines to the ~/.bashrc file:
export PATH=/usr/local/cuda-11.4/bin:$PATH export LD_LIBRARY_PATH=/usr/local/cuda-11.4/lib64:$LD_LIBRARY_PATH
4. Apply the changes:
source ~/.bashrc
5. Check CUDA version with nvcc
nvcc --version nvcc: NVIDIA (R) Cuda compiler driver Copyright (c) 2005-2022 NVIDIA Corporation Built on Sun_Oct_23_22:16:07_PDT_2022 Cuda compilation tools, release 11.4, V11.4.315 Build cuda_11.4.r11.4/compiler.31964100_0
Execute a CUDA sample
For this sample, the /usr/local/cuda/samples/1_Utilities/bandwidthTest is executed.
1. Move to the /usr/local/cuda/samples/1_Utilities/bandwidthTest directory
cd /usr/local/cuda/samples/1_Utilities/bandwidthTest
2. Build the sample:
sudo make
3. Execute the sample:
sudo ./bandwidthTest
4. Check the expected outputs:
sudo ./bandwidthTest [CUDA Bandwidth Test] - Starting... Running on... Device 0: Xavier Quick Mode Host to Device Bandwidth, 1 Device(s) PINNED Memory Transfers Transfer Size (Bytes) Bandwidth(GB/s) 32000000 3.2 Device to Host Bandwidth, 1 Device(s) PINNED Memory Transfers Transfer Size (Bytes) Bandwidth(GB/s) 32000000 3.2 Device to Device Bandwidth, 1 Device(s) PINNED Memory Transfers Transfer Size (Bytes) Bandwidth(GB/s) 32000000 51.0 Result = PASS NOTE: The CUDA Samples are not meant for performance measurements. Results may vary when GPU Boost is enabled. nvidia@ubuntu:/usr/local/cuda/samples/1_Utilities/bandwidthTest$ date mié 3 jun 10:24:21 CST 2026
For the tegrastats output, run the following command:
sudo tegrastats --readall
Expected output:
06-03-2026 10:24:22 RAM 1002/15080MB (lfb 3325x4MB) SWAP 0/7540MB (cached 0MB) CPU [0%@1190,0%@1190,0%@1190,0%@1268,3%@1190,0%@1190,13%@1191,0%@1190] EMC_FREQ 5%@204 GR3D_FREQ 99%@[114] VIC_FREQ 1036 APE 150 AUX@33C CPU@34C thermal@33.6C Tboard@35C AO@33.5C GPU@34C Tdiode@37C GPU 309mW/257mW CPU 928mW/619mW SOC 1238mW/877mW CV 0mW/0mW VDDRQ 154mW/154mW SYS5V 1211mW/1116mW