Strix Halo × Qwen3.8 (pwilkin)
Reproducible custom-ROCm llama.cpp stack for Qwen3.8-27B on Strix Halo.
A full, reproducible stack for running Qwen3.8-27B on Strix Halo (gfx1151): calibrated IQ4_XS weights, an IQ4_XS DFlash2 drafter, the UMA scheduler ring, and retained-PM4 dispatch on a custom-built ROCm userspace — installed from source into your home directory via one installer command, no system ROCm replacement. Their matched-protocol reproduction claims fastest-on-Radeon-8060S by 13–25% over the Vulkan-derived stacks (~26 t/s decode with ~61% draft acceptance, ~257 t/s prefill), with machine-readable benchmark evidence and a broader community leaderboard table. Directly relevant to the Halo box.