Something like this would give you three concurrent sessions, each with 240k token context:
sudo sysctl iogpu.wired_limit_mb=110000
llama-server -hf unsloth/Qwen3.8-27B-GGUF:BF16 -c 786432 --parallel 3 -ngl 99 -fa onShould bench better than Opus 4.7.