A Strata fork for IBM AC922 running Qwen3.8-FN UD-Q4_K_XL is doing up to 7,357 tk/s prefill and 113 tk/s decode

A developer forked Strata, making significant changes to Opus 5.5, to run it on an IBM AC922. This 2018-era IBM AC922, equipped with two POWER9 20-core SMT4 CPUs and 4 or 6 NVIDIA Tesla V100 SXM2 GPUs, achieved impressive performance. Running Qwen3.8-FN UD-Q4_K_XL, the system reached up to 7,357 tk/s for prefill and 113 tk/s for decode, leveraging the 150GB/s CPU-GPU bandwidth and unified memory access.

This report details a Strata fork that achieves 7,357 tk/s prefill and 113 tk/s decode on an IBM AC922, unlike typical benchmarks on newer hardware.