docs(vllm): Qwen3.8-27B DFlash drafter recipe — 72.2 tok/s on Arc Pro B70 - #620
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rmacy wants to merge 3 commits into
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docs(vllm): Qwen3.8-27B DFlash drafter recipe — 72.2 tok/s on Arc Pro B70#620rmacy wants to merge 3 commits into
rmacy wants to merge 3 commits into
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Adds the complete recipe for achieving 72.2 tok/s median (85.9 peak) on isolated C1 with Qwen3.8-27B FP8 + DSpark speculative decoding on 2x Intel Arc Pro B70 (TP=2). Includes: - Patched vLLM dflash files (kernel readout fix for SpecForge drafters) - Dockerfile for qwen38-fp8-dspark:v8 image - Reference serving script - Full README with quick start, kernel fix explanation, and quality proof Published artifacts: - Drafter: rwmacy/qwen3.8-27b-dflash-drafter-fp8-b70 (HF Hub) - Image: ghcr.io/rmacy/qwen38-fp8-dspark:v8 - Kernel fix PR: inteliodev/vllm#1 - SpecForge XPU port PR: sgl-project/SpecForge#769
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Seems your container image isn't accessible. I' can't seem to get my own container build to load with similar config to what you suggested, it OOM's when I have speculative decode enabled. Loads fine without. |
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Ah never-mind found it here - docker pull ghcr.io/rmacy/qwen38-fp8-dspark:v12 |
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Summary
Adds the complete recipe for achieving 72.2 tok/s median (85.9 peak) on isolated C1 with Qwen3.8-27B FP8 + DSpark speculative decoding on 2× Intel Arc Pro B70 (TP=2).
Contents
vllm/patches/qwen38-dflash/: patched vLLM dflash files (kernel readout fix), Dockerfile, serve script, READMEqwen38-fp8-dspark:v8(also published atghcr.io/rmacy/qwen38-fp8-dspark:v8)Published artifacts
ghcr.io/rmacy/qwen38-fp8-dspark:v8Quality
Greedy spec decode is lossless by construction. Verified 4/5 byte-identical outputs vs target-only baseline; cross-checked against independent bf16 reference endpoint. Zero drafter-induced quality degradation.