https://www.chenk.top/en/tags/gpu/Recent content in GPU on Chen Kai BlogHugoenFri, 06 Mar 2026 09:00:00 +0000https://www.chenk.top/en/aliyun-pai/02-pai-dsw-notebook/Fri, 06 Mar 2026 09:00:00 +0000https://www.chenk.top/en/aliyun-pai/02-pai-dsw-notebook/<p>Every time I onboard a new ML engineer to PAI the first day looks the same. They start a DSW instance, <code>pip install</code> their world, train for an hour, restart the kernel for some reason, and then ask me where their model file went. The honest answer — &ldquo;in <code>/root</code> on a node that no longer exists&rdquo; — is the kind of lesson you only need to learn once. This article is the version of that lesson you read in advance.</p>