You’re right that my rant is incorrect on the premise that they don’t have hmm, but it’s because I missed rocm adding it two years ago. So my bad, and unfortunately I can’t edit my post so I’ll leave the link here with my apologies.
https://www.phoronix.com/news/Radeon-ROCm-4.3The reason I missed it is because rocm dropped support for my cards very unceremoniously. At which point I gave up.
I do think the rest of my point outside of the first sentence is valid though. Rocm isn’t reliable to target. Nowhere near CUDA.
That it’s so dependent on what card you have, what OS/kernel you use and is so aggressive with dropping support for older cards, makes the entire ecosystem a mess. CUDA by comparison is so much more ubiquitous.
That becomes chicken and egg with popular libraries adding rocm support because it then ends up targeting such a sliver (and shifting sliver) at that of the market.
