IIRC Zluda does support compiling PTX. My understanding is that this is part of why Intel and AMD eventually didn’t want to support it - it’s not a great idea to tie yourself to someone else’s architecture you have no control or license to.
OTOH, CUDA itself is just a set of APIs and their implementations on NVIDIA GPUs. Other companies can re-implement them. AMD has already done this with HIP.
IIRC Zluda does support compiling PTX. My understanding is that this is part of why Intel and AMD eventually didn’t want to support it - it’s not a great idea to tie yourself to someone else’s architecture you have no control or license to.
OTOH, CUDA itself is just a set of APIs and their implementations on NVIDIA GPUs. Other companies can re-implement them. AMD has already done this with HIP.