Nvcc fatal : Unsupported gpu architecture 'compute_86'

Accelerated Computing CUDA CUDA Setup and Installation
#1

Hello，

I compile my program on a Ubuntu18.04 Linux PC with a RTX3090 GPU installed, and CUDA is 11.1, Driver Version: 455.23.04, but such an error happened:

nvcc fatal : Unsupported gpu architecture ‘compute_86’

My Makefile has the following setting:

ARCH= -gencode arch=compute_35,code=sm_35
-gencode arch=compute_50,code=[sm_50,compute_50]
-gencode arch=compute_52,code=[sm_52,compute_52]
-gencode arch=compute_61,code=[sm_61,compute_61]
-gencode arch=compute_70,code=[sm_70,compute_70]
-gencode arch=compute_72,code=[sm_72,compute_72]
-gencode arch=compute_75,code=[sm_75,compute_75]
-gencode arch=compute_86,code=[sm_86,compute_86]

How to resolve this issue ? thanks.
For the output of command ‘nvidia-smi’ and the error info, please see the attached images:

error-RTX3090
error-RTX3090807×265 10.2 KB

nvidia-smi-RTX3090
nvidia-smi-RTX3090836×382 9.57 KB

#2

After installed the latest CUDA 11.1.1, then this error disappeared, thanks

#3

I have the same problem but my version of CUDA is 11.2, so it shouldn’t appear : true or false ?

#4

Since CUDA is 11.2, I guess your GPU doesn’t support architecture ‘compute_86’, this compute capability is supported by RTX30** series GPU

#5

nvcc doesn’t care for the GPU in the system. If you are running with the nvcc from CUDA 11.2, you shouldn’t get an error message Unsupported gpu architecture ‘compute_86’ when compiling. I would suggest:

(1) Show the output of nvcc --version
(2) Show the complete nvcc invocation that gave rise to the error message.

#6

I forgot to the the steps following the installation, about PATH and LD_LIBRARY_PATH, that sorted it out. It was using CUDA 10.1

1 Like
#7

Same here. After do source ~/.bashrc the problem solved. Before that set the expert path thing in ~/.bashrc