Yes, just set CC=clang​ and CXX=clang++​. -- Hui Zhou ________________________________ From: Sajid Ali via discuss <[email protected]> Sent: Friday, April 15, 2022 11:49 AM To: [email protected] <[email protected]> Cc: Sajid Ali <[email protected]> Subject: [mpich-discuss] CUDA support with clang instead of nvcc Hi MPICH-developers, Is it possible to compile MPICH with CUDA awareness, but with clang as the CUDA compiler? (i.e. use clang capable of targeting the nvptx backend to compiler cuda files instead of nvcc). Thank You, Sajid Ali (he/him) | Research Associate Scientific Computing Division Fermi National Accelerator Laboratory s-sajid-ali.github.io<http://s-sajid-ali.github.io>