Event ·Multi-source

PyTorch 2.15 发布：NCCL 新后端成默认，Blackwell 支持 NVFP4 解码

PyTorch 2.15 包含来自 583 位贡献者的 3,117 次提交。重写的 NCCL 后端成为默认，并新增基于 NIXL 的单侧传输。FSDP2 和流水线并行获得更细的显存与通信控制。在 NVIDIA Blackwell GPU 上支持更快的 4-bit（NVFP4）LLM 解码，Apple Silicon 获得 FP8 与更快解码。团队将于 11 月 5 日 11 AM PST 举行线上问答。

Current read

PyTorch 2.15 来了，583 人贡献了 3000 多次提交，Blackwell 上 4-bit 解码更快，Mac 上也支持 FP8 了，训练部署的都看看。

8 sources71° AI heatLast updated 2026/10/28 17:49:51

Evidence

8 sources

Primary sourcePyTorch

2026/10/28 17:49:51View source

Related source 1NVIDIA

2026/10/26 21:14:16View source

Related source 2arXiv cs.AI

2026/10/27 08:46:21View source

Related source 3rohanpaul_ai

2026/10/27 23:44:27View source

Related source 4IT之家

2026/10/28 01:25:34View source

Related source 5TestingCatalog

2026/10/28 09:58:40View source

Related source 6vLLM

2026/10/28 15:26:59View source

Related source 7Gorden Sun

2026/10/28 16:01:32View source

Conflict check

Dedup data only shows that these sources discuss the same event, not that they agree. There is no structured supporting or refuting evidence yet, so no conflict is inferred automatically.

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