# Tunables for frank-default-large (unsloth Qwen3.8-27B UD-Q8_K_XL, dankclaw)
# Runtime: llama.cpp llama-server (b10433+, rebuilt 2026-08-14 for bundled-MTP
# support); AMD Strix Halo (gfx1151) 96GB UMA; Ryzen AI MAX+ 395.
MODEL_DIR=/home/dank/models
MODEL_FILE=Qwen3.8-27B-UD-Q8_K_XL.gguf
ALIAS=frank-default-large
HOST=0.0.0.0
PORT=7770
# Context pool. Qwen3.8 native context = 262144 per sequence.
# 524288 total / PARALLEL 2 = 262144 per slot, matching the pi client's
# contextWindow=262144 for frank-default-large. Model is 29GB; ROCm has
# ~70GB headroom, so 2x262k quantized KV fits. Verify at startup.
CTX_SIZE=524288
PARALLEL=2
# Spec: selected from the 2026-08-14 matrix (bench-spec-matrix.sh).
# WINNER: draft-mtp alone, n_max=10, p_min off -> ~30 t/s, STABLE, no
# premature stop.  Layered draft-mtp,ngram-mod was faster on paper (median
# 133 t/s) but is non-deterministic (10-148 t/s) and shows a degenerate
# instant-EOS (tok=0) -> the same premature-stop class that retired DFlash.
# Rejected as production-unsafe.
SPEC_TYPE=draft-mtp
# Bundled MTP: Qwen3.8 keeps the MTP head in the target GGUF. llama.cpp
# auto-detects it (b10411+). DRAFT_FILE MUST stay EMPTY.
DRAFT_FILE=
# Draft length + sampling floor, from the spec matrix (n_max 2..10, p_min
# off/0.8; p_min 0.8 did not help draft-mtp and slowed it slightly).
SPEC_DRAFT_N_MAX=10
SPEC_DRAFT_P_MIN=
SPEC_NGRAM_MOD_N_MIN=48
SPEC_NGRAM_MOD_N_MAX=64
SPEC_NGRAM_MOD_N_MATCH=24
# Backend device from --list-devices. ROCm0 is the production backend.
DEVICE=ROCm0
# Dense model: full offload. (Not MoE.)
N_GPU_LAYERS=all
# KV on GPU, quantized (K q8_0, V q8_0). Keep K == V for Flash Attention;
# mixed types silently disable FA (long-context decode collapses).
CACHE_TYPE_K=q8_0
CACHE_TYPE_V=q8_0
# Batch sizing (verified 2026-08-14 on Qwen3.8 UD-Q8_K_XL):
#   ubatch 128 with batch>=2048 -> premature-EOS under concurrency (unsafe).
#   ubatch 512 -> MTP acceptance collapses (~25%) -> gen ~9 t/s (slow).
#   ubatch 256 -> ~30 t/s gen, concurrent-safe, ~330 t/s prefill.  WINNER.
# batch 8192 keeps single-shot prefill flexibility; ubatch drives the graph.
BATCH_SIZE=8192
UBATCH_SIZE=256
# Sampling settings — per Qwen3.8-27B model card thinking mode.
# Thinking: temp=1.0, top_p=0.95, top_k=20, min_p=0. Clients may override.
# WARNING: do not name this variable TEMP. The ROCm HIP runtime reads the
# TEMP environment variable (JIT kernel-cache dir); TEMP=1.0 made the HIP
# runtime SEGV during model load on Aug 13 2026.
TEMPERATURE=1.0
TOP_K=20
TOP_P=0.95
MIN_P=0.0
THREADS=12
THREADS_HTTP=1