cudaGetDeviceCount

Autonomous Machines Jetson & Embedded Systems Jetson AGX Xavier
1

System is the NVIDIA AGX unbuntu 18.04

nvcc: NVIDIA (R) Cuda compiler driver
Copyright (c) 2005-2021 NVIDIA Corporation
Built on Sun_Feb_28_22:34:44_PST_2021
Cuda compilation tools, release 10.2, V10.2.300
Build cuda_10.2_r440.TC440_70.29663091_0

I am trying to run the simpleCUFFT but I get this error:

/usr/local/cuda-11.3/samples/7_CUDALibraries/simpleCUFFT$ ./simpleCUFFT
[simpleCUFFT] is starting…
CUDA error at …/…/common/inc/helper_cuda.h:779 code=999(cudaErrorUnknown) “cudaGetDeviceCount(&device_count)”

From deviceQuery I get

usr/local/cuda-11.3/samples/1_Utilities/deviceQuery$ ./deviceQuery
./deviceQuery Starting…

CUDA Device Query (Runtime API) version (CUDART static linking)

cudaGetDeviceCount returned 999
→ unknown error
Result = FAIL

3

Hi,

If you want to use CUDA 11, please reflash your device with JetPack 5.
There are some dependencies between GPU driver and libraries, r35 is required for the CUDA 11.

Thanks.

5

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