Notes from the plant
Journal
What broke, what it measured, and what fixed it. Written for the engineer who will meet the same fault next year.
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Nine hundred and sixty-six pages in seven minutes and thirty seconds
A medical textbook, read end to end, on cards bought for mining. The trick is not the model. It is that the book is nine hundred and sixty-six separate jobs.
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The tuning was there. The card was filed as unknown.
One attention kernel went from three thousand and twenty-two milliseconds to one hundred and fifty-two. Nothing was optimised. A test was corrected.
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Why this plant runs on a graphics driver
The vendor compute stack reports six cards and uses one. The failure is silent, and it decided the architecture of everything we have built since.