Posts tagged with "CDNA3"

AMD's FlyDSL is the Python front-end for a Fly-dialect MLIR compiler that lowers layout algebra and copy/MMA atoms to ROCDL on CDNA3/CDNA4. Four examples — vectorAdd, tiledCopy, tiledMma, preshuffle GEMM — form a strict pedagogical ladder; reading them in order gives you every machinery that real production kernels (paged attention, MoE GEMM, flash attention) recombine.

carlushuang's gcnasm repo is the rare middle ground between HIP tutorials and the 1,200-page CDNA3 ISA manual: 64 short, self-contained kernels that show what hand-tuned AMD code actually looks like. Six hours of careful reading buys you a working mental model of MFMA, vmcnt pipelining, DPP cross-lane primitives, and the trick the LLVM assembler refuses to let you write.