Frank
a818be70dc
Realistic-prompt tuning: n_max=5 peaks ~13.3 t/s (baseline 7.2). matrix used a repetitive prompt that inflated MTP. n_max=10 is only ~8.6 t/s on real writing.
64 lines
2.9 KiB
Bash
64 lines
2.9 KiB
Bash
# Tunables for frank-default-large (unsloth Qwen3.8-27B UD-Q8_K_XL, dankclaw)
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# Runtime: llama.cpp llama-server (b10433+, rebuilt 2026-08-14 for bundled-MTP
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# support); AMD Strix Halo (gfx1151) 96GB UMA; Ryzen AI MAX+ 395.
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MODEL_DIR=/home/dank/models
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MODEL_FILE=Qwen3.8-27B-UD-Q8_K_XL.gguf
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ALIAS=frank-default-large
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HOST=0.0.0.0
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PORT=7770
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# Context pool. Qwen3.8 native context = 262144 per sequence.
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# 524288 total / PARALLEL 2 = 262144 per slot, matching the pi client's
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# contextWindow=262144 for frank-default-large. Model is 29GB; ROCm has
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# ~70GB headroom, so 2x262k quantized KV fits. Verify at startup.
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CTX_SIZE=524288
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PARALLEL=2
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# Spec: draft-mtp uses the MTP drafter BUNDLED inside the target GGUF.
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# llama.cpp auto-detects it (b10411+). DRAFT_FILE stays EMPTY.
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#
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# Winner = draft-mtp, n_max=5, p_min off.
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# Realistic-prompt tuning (2026-08-14, temp 0.8, production settings):
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# n4 12.5 | n5 13.3 (PEAK) | n6 10.6 | n7 10.1 | n10 8.6 | baseline none 7.2.
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# The 54-config matrix (repetitive "fleet" prompt) reported n_max=10 ~30 t/s,
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# but that prompt MTP drafts almost perfectly; long drafts collapse to ~18%
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# acceptance on real writing, so n_max=10 is actually ~8.6 t/s there.
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# Layered draft-mtp,ngram-mod is faster on paper (matrix median 133 t/s) but
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# non-deterministic (10-148 t/s) and showed a degenerate instant-EOS -> the
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# same premature-stop class that retired DFlash. Rejected as production-unsafe.
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# p_min off: --spec-draft-p-min 0.8 was neutral to slightly worse for draft-mtp.
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# No premature-stop on realistic text at ubatch 256 (see batch notes below);
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# the earlier 'premature EOS' on the repetitive bench prompt was sampling
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# variance, not a corruption bug.
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SPEC_TYPE=draft-mtp
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DRAFT_FILE=
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SPEC_DRAFT_N_MAX=5
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SPEC_DRAFT_P_MIN=
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SPEC_NGRAM_MOD_N_MIN=48
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SPEC_NGRAM_MOD_N_MAX=64
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SPEC_NGRAM_MOD_N_MATCH=24
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# Backend device from --list-devices. ROCm0 is the production backend.
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DEVICE=ROCm0
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# Dense model: full offload. (Not MoE.)
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N_GPU_LAYERS=all
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# KV on GPU, quantized (K q8_0, V q8_0). Keep K == V for Flash Attention;
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# mixed types silently disable FA (long-context decode collapses).
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CACHE_TYPE_K=q8_0
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CACHE_TYPE_V=q8_0
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# Batch sizing (verified 2026-08-14 on Qwen3.8 UD-Q8_K_XL):
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# ubatch 128 with batch>=2048 -> premature-EOS under concurrency (unsafe).
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# ubatch 512 -> MTP acceptance collapses (~25%) -> gen ~9 t/s (slow).
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# ubatch 256 -> ~30 t/s gen, concurrent-safe, ~330 t/s prefill. WINNER.
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# batch 8192 keeps single-shot prefill flexibility; ubatch drives the graph.
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BATCH_SIZE=8192
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UBATCH_SIZE=256
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# Sampling settings — per Qwen3.8-27B model card thinking mode.
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# Thinking: temp=1.0, top_p=0.95, top_k=20, min_p=0. Clients may override.
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# WARNING: do not name this variable TEMP. The ROCm HIP runtime reads the
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# TEMP environment variable (JIT kernel-cache dir); TEMP=1.0 made the HIP
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# runtime SEGV during model load on Aug 13 2026.
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TEMPERATURE=1.0
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TOP_K=20
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TOP_P=0.95
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MIN_P=0.0
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THREADS=12
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THREADS_HTTP=1
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