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Elana Simon
Researcher at Anthropic
Elana Simon is a PhD student at Stanford University who studies biomedical informatics and has researched fibrolamellar liver cancer.
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Oct 2025 — Nov 2026
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Elana Simon as author
A Debugging Trail That Teaches PyTorch Deeper Than Years of Work
elanapearl.github.iotutorialneutralOct 27, 2025
A PyTorch GPU kernel bug in the MPS (Apple Silicon) backend caused silent failures in addcmul_ and addcdiv_ operations on non-contiguous tensors, freezing encoder weights during training until traced through multiple abstraction layers.
“Author of "A Debugging Trail That Teaches PyTorch Deeper Than Years of Work"”
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Also Mentioned In
Referenced in coverage
Anthropic opens paid AI safety residency, no ML background needed
AnthropicneutralNov 3, 2026
“Elana Simon researches interpretability of language models and biological models at Anthropic, mentoring residency fellows.”