teach

Explain a GPU kernel or a kernel change so a person understands it: data flow from global memory to LDS to registers to MFMA to epilogue, tiling and wave mapping, pipeline waits, why the design is this way, and what the numbers mean. Runs the how and why skills. Use for 'teach me this kernel', 'explain this FlyDSL or aiter change', 'walk me through the tiling', 'why is this tile size or pipeline used'.