I use r35.4.1 rootfs and install cuda12.2，but cudaGetDeviceCount got 0

[lishu2002]

1. I use orin nx 8G with r35.4.1 rootfs.
2. I download the latest cuda12.2 & install it
3. when use cudaGetDeviceCount , only got a 0 value.
   int device_count = 0;
   cudaGetDeviceCount(&device_count);
   printf(“get dev cnt = %d\n”, device_count);
   ------ when running the code will got: get dev cnt = 0

Question: whether orin nx can use cuda12.2 or not?

btw: when use cuda 11.4, function can got device_count = 1.

thanks

[AastaLLL]

Hi,

Sorry for the late.

Have you export the compat folder after installing CUDA 12?

$ export PATH=/usr/local/cuda-12/bin:${PATH}
$ export LD_LIBRARY_PATH=/usr/local/cuda-12.0/compat

Thanks.