111 lines
3.4 KiB
Bash
Executable File
111 lines
3.4 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Gemma 4 target + gemma4_assistant MTP draft with TurboQuant KV (turbo3 by default).
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# Override paths via MAIN_GGUF, DRAFT_GGUF, or LLAMA_SERVER.
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set -euo pipefail
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ROOT="$(cd "$(dirname "$0")/.." && pwd)"
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SERVER="${LLAMA_SERVER:-${ROOT}/build/bin/llama-server}"
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MAIN="${MAIN_GGUF:-${ROOT}/.scratch/gemma-4-26b-a4b/gemma-4-26B-A4B-it-UD-Q4_K_XL.gguf}"
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# Default assistant GGUF name after fixed conversion (embedding dim 1024, not backbone 2816).
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DRAFT="${DRAFT_GGUF:-${ROOT}/.scratch/gemma-assistant-mtp.gguf}"
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# Skip with VERIFY_ASSISTANT_GGUF=0
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VERIFY_ASSISTANT_GGUF="${VERIFY_ASSISTANT_GGUF:-1}"
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CTX="${CTX:-16384}"
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NGL="${NGL:-99}"
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NGL_DRAFT="${NGL_DRAFT:-99}"
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CTK="${CTK:-turbo3}"
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CTV="${CTV:-turbo3}"
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CTKD="${CTKD:-turbo3}"
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CTVD="${CTVD:-turbo3}"
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HOST="${HOST:-127.0.0.1}"
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PORT="${PORT:-8080}"
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FA="${FA:-on}"
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# Toggle speculative decoding for A/B perf comparison.
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# SPEC=mtp (default) - enable Gemma4 MTP assistant draft
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# SPEC=off - disable speculative decoding (baseline run)
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SPEC="${SPEC:-mtp}"
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# Sampler default override. TEMP=0 forces greedy sampling on the target so
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# MTP draft acceptance can be compared against an upper bound (no sampler
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# divergence between target and MTP head).
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TEMP="${TEMP:-}"
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# Measurement flags (always on by default; set to 0 to drop)
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ENABLE_METRICS="${ENABLE_METRICS:-1}"
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ENABLE_SLOTS="${ENABLE_SLOTS:-1}"
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LOG_TIMESTAMPS="${LOG_TIMESTAMPS:-1}"
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LOG_PREFIX="${LOG_PREFIX:-1}"
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NO_WARMUP="${NO_WARMUP:-0}"
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if [[ ! -f "$SERVER" ]]; then
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echo "error: missing ${SERVER} (build with: cmake --build build --target llama-server)" >&2
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exit 1
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fi
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if [[ ! -f "$MAIN" ]]; then
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echo "error: main GGUF not found: ${MAIN}" >&2
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exit 1
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fi
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if [[ "$SPEC" == "mtp" ]]; then
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if [[ ! -f "$DRAFT" ]]; then
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echo "error: draft (assistant) GGUF not found: ${DRAFT}" >&2
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echo "hint: convert assistant with repo convert_hf_to_gguf.py -> e.g. .scratch/gemma-assistant-mtp.gguf" >&2
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exit 1
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fi
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if [[ "$VERIFY_ASSISTANT_GGUF" != "0" ]]; then
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if ! python3 "${ROOT}/scripts/verify-gemma4-assistant-gguf.py" "$DRAFT"; then
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echo "hint: PYTHONPATH=${ROOT}/gguf-py python3 ${ROOT}/convert_hf_to_gguf.py ${ROOT}/.scratch/gemma-4-26B-A4B-it-assistant --outfile ${ROOT}/.scratch/gemma-assistant-mtp.gguf --outtype f16" >&2
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exit 1
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fi
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fi
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fi
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PARALLEL="${PARALLEL:-1}"
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ARGS=(
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-m "$MAIN"
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-c "$CTX"
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-ngl "$NGL"
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-ngld "$NGL_DRAFT"
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-ctk "$CTK"
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-ctv "$CTV"
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-ctkd "$CTKD"
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-ctvd "$CTVD"
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-fa "$FA"
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--host "$HOST"
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--port "$PORT"
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--parallel "$PARALLEL"
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-np "$PARALLEL"
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--cont-batching
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)
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if [[ "$SPEC" == "mtp" ]]; then
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ARGS+=(
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--mtp-head "$DRAFT"
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--spec-type mtp
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# b10018 sync: --draft-block-size/--draft-max are gone; per-round chain
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# length is --spec-draft-n-max (= old block size B - 1).
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--spec-draft-n-max "$(( ${DRAFT_BLOCK_SIZE:-3} - 1 ))"
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--spec-draft-n-min "${DRAFT_MIN:-0}"
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)
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else
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echo "info: speculative decoding disabled (SPEC=${SPEC}); running baseline" >&2
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fi
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if [[ -n "$TEMP" ]]; then
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ARGS+=(--temp "$TEMP")
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fi
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[[ "$ENABLE_METRICS" != "0" ]] && ARGS+=(--metrics)
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[[ "$ENABLE_SLOTS" != "0" ]] && ARGS+=(--slots)
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[[ "$LOG_TIMESTAMPS" != "0" ]] && ARGS+=(--log-timestamps)
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[[ "$LOG_PREFIX" != "0" ]] && ARGS+=(--log-prefix)
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[[ "$NO_WARMUP" != "0" ]] && ARGS+=(--no-warmup)
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echo "info: SPEC=${SPEC} CTX=${CTX} NGL=${NGL} FA=${FA}" >&2
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exec "$SERVER" "${ARGS[@]}" "$@"
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