# Head tunables — Qwen3.8-27B pipeline-parallel head (Dankclaw). # # The head is the LOCAL side of the split. It runs llama-server (b10433, # HIP+Vulkan+RPC build in /home/dank/llama.cpp/build) with --rpc pointing at # the worker on Dankserver. The model file lives on this machine only; the # worker receives its tensor share over the network at load time. # # CRITICAL: this script must NOT pass --device. When --device is set, # llama.cpp uses exactly that device list and silently drops the RPC device # (src/llama.cpp llama_prepare_model_devices). Default device selection # inserts RPC servers at the FRONT of the device list, so the split becomes # [RPC0, iGPU] and --tensor-split index 0 is the worker. # # WARNING: do not name any variable here TEMP, HOST, or GPU_MAX_HEAP_SIZE # (HIP runtime collision, see the 2026-08-13 TEMP incident). MODEL_DIR=/home/dank/models MODEL_FILE=Qwen3.8-27B-UD-Q8_K_XL.gguf HEAD_BIN=/home/dank/llama.cpp/build/bin/llama-server ALIAS=frank-pp-large BIND_ADDR=0.0.0.0 LISTEN_PORT=7770 # Comma-separated RPC endpoints (host:port). One worker here. RPC_SERVERS=192.168.0.235:50052 # Model split fractions, one per device in order [RPC0, iGPU]. # 1,1 = 50/50: the 3090 gets the first ~32 layers, the Strix the rest. # Leave empty for the default proportional-to-free-memory split; note the # Strix reports ~96 GiB (GTT ceiling) vs the 3090's ~24 GB, so the default # lands around 20% of layers on the 3090 and 80% on the Strix. TENSOR_SPLIT=1,1 # Context pool. 131072 single slot keeps the KV small (~4.5 GB total at # q8_0) on both sides; raise for high-context tests (see docs). CTX_SIZE=131072 PARALLEL=1 # Speculative decoding. Matches production frank-default-large: MTP (bundled # head, n_max 4 per the published tuning curve) with the ngram-mod fallback. # Set SPEC_NONE=1 for a raw baseline with no speculation. SPEC_NONE=0 SPEC_DEFAULT=1 MTP=1 SPEC_DRAFT_N_MAX=4 # Optional standalone MTP draft head (e.g. the Q4_0 ggml-org file). When set, # it replaces the bundled in-model head via --spec-draft-model. SPEC_DRAFT_MODEL= SPEC_NGRAM_MOD_N_MIN=48 SPEC_NGRAM_MOD_N_MAX=64 SPEC_NGRAM_MOD_N_MATCH=24 # KV on GPU, quantized. Keep K == V so Flash Attention stays enabled. CACHE_TYPE_K=q8_0 CACHE_TYPE_V=q8_0 # Batch sizing: production-verified values (2026-08-14). BATCH_SIZE=8192 UBATCH_SIZE=256 # Sampling — Qwen3.8 thinking-mode defaults. TEMPERATURE=1.0 TOP_K=20 TOP_P=0.95 MIN_P=0.0 THREADS=12 THREADS_HTTP=1 # 10 (debug): prints per-layer device assignment so the split is verifiable # in the log. Drop to 4 for quiet production use. VERBOSITY=10 # 1: --direct-io model load. Required in practice for large models loaded # over RPC (load hangs otherwise; visorcraft Strix RPC finding). DIRECT_IO=1