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(NInfer Fork) I wanted to have a 1M context Qwen-3.8 27B, tp2, dual 5090s

This story is from 2026-08-29. It is preserved in the archive; the latest stories are on the live feed.

Hey! I forked NInfer (a from-scratch C++20/CUDA inference engine for Qwen models) and added two things: tensor-parallel across two GPUs, and YaRN ×4 rope scaling. Together they let Qwen3.8-27B NVFP4 run a 1,048,576-token context on two consumer 5090s — 27.4 GB per card, no NVLink. Numbers (single s…

Read the full story at r/LocalLLaMA ↗

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  1. 2026-08-29 18:24 · r/LocalLLaMA
    (NInfer Fork) I wanted to have a 1M context Qwen-3.8 27B, tp2, dual 5090s

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