IsoExec Unifies Execution to Fix Trainer-Inference Mismatch
vLLM Blog · rss · 2026-08-21
SkyRL introduced IsoExec to unify numerical execution across vLLM and Megatron runtimes. On Qwen3.5-35B-A3B, it reduces the rollout-versus-training logprob difference below 1e-6 with only 25% overhead, eliminating trainer-inference mismatch.
More from Infra
- Muse Spark Open runs locally on a Mac M3 Ultra via llama.cpp: frontier model on desktop — pcuenq · 2026-10-16
- Muse-Spark open-weights drop: 816B-A42B MoE model gets 359GB MLX 3-bit build — ns123abc · 2026-10-16
- vLLM ships Day-0 LoRA RL for Muse Spark Open, lifting AIME from 0.56 to 0.85 — vllm_project · 2026-10-16
- DSpark draft model for Muse Spark Open proposes 7 tokens per pass with 23-42% acceptance — vllm_project · 2026-10-16
- Cloudflare Stream's WebRTC ultra-low-latency live streaming is now Generally Available — ritakozlov · 2026-10-16
- YC-backed Overshoot launches inference optimization, claims $5M saved for AI teams — ycombinator · 2026-10-16