[Cherry-pick][Operator] Align CPU randperm_kernel with PyTorch for bit-exact output #78614#78627
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sneaxiy merged 3 commits intoPaddlePaddle:release/3.3from Apr 13, 2026
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Replace std::mt19937_64 + std::shuffle with a custom MT19937 engine that matches PyTorch's implementation, ensuring identical randperm results under the same seed. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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zhengshengning
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Codecov Report✅ All modified and coverable lines are covered by tests. Additional details and impacted files@@ Coverage Diff @@
## release/3.3 #78627 +/- ##
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Coverage ? 100.00%
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Files ? 1
Lines ? 57
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Hits ? 57
Misses ? 0
Partials ? 0 ☔ View full report in Codecov by Sentry. 🚀 New features to boost your workflow:
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sneaxiy
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Apr 13, 2026
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devPR:#78614
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