nvcc fatal : Unsupported gpu architecture 'compute_80'

Question

I am tring to make the caffe ,but got the nvcc fatal : Unsupported gpu architecture 'compute_80' error. I have the following configuration.

Description:    Ubuntu 20.04.5 LTS
$ uname -m
x86_64

I was following this post, its seems like upgrading the CUDA version and export the paths (LD_LIBRARY_PATH, PATH , CUDA_HOME) done the trick. But I am using the latest CUDA version and done all the path exporting also. It looks like gpu architecture is also there -

$ nvcc --help

--gpu-architecture <arch> 

  Allowed values for this option:  'all','all-major','compute_50','compute_52',
 'compute_53','compute_60','compute_61','compute_62','compute_70',
'compute_72','compute_75','compute_80','compute_86','compute_87',
'compute_89','compute_90','compute_90a','lto_50','lto_52','lto_53',
'lto_60','lto_61','lto_62','lto_70','lto_72','lto_75','lto_80','lto_86',
'lto_87','lto_89','lto_90','lto_90a','native','sm_50','sm_52','sm_53',
'sm_60','sm_61','sm_62','sm_70','sm_72','sm_75','sm_80','sm_86','sm_87',
'sm_89','sm_90','sm_90a'.

Right now, I am just really confused and don't understand what I am missing here. Should I downgrade the CUDA version or are there any other solutions available? any help would be greatly appreciated.

Answer 1

It seems like the problem was with the Makefile.config file. For some reason, all the CUDA_ARCH: -gencode was disabled in the Makefile.config file.

I have enabled all the CUDA_ARCH: -gencode and tried to make it again but there was another nvcc fatal error, nvcc fatal : Unsupported gpu architecture 'compute_30'. What I have did, simple removed this -gencode arch=compute_30,code=sm_30 \ from the Makefile.config file and added my required -gencode.

And this time it works!!!!