Hello! ✌️ I'm Marcel, a postdoc at EPFL in Lausanne, working somewhere in between machine learning and computational condensed matter physics. You can find more about my work here, or you could say say hi on twitter.

This is where I keep my notes on work-related things. Maybe they'll be useful for you!

(This website is rather new, and probably a bit wonky in places – if anything suspicious happens, please drop me a line at mail@marcel.science, or hit me up on twitter.)

Notes

• numpy.load access performance (posted 2025-06-16)
• torch.nn.Linear initialisation (posted 2025-03-07)
• torch gradcheck and pytest (posted 2024-10-24)
• ase.lol (posted 2024-10-28)
• JAX-MD Neighbourlists in Non-Orthorhombic Systems (posted 2022-11-16)
• Removing ticks in log scale (posted 2022-07-12)
• Stress and PaiNN (posted 2022-04-26)
• Indexing arrays with other arrays (posted 2021-05-20)
• Transposing a 'sparse', randomly-ordered array (posted 2021-04-12)
• Interfacing ase and i-pi (posted 2021-03-28)
• np.loadtxt from string (posted 2021-03-30)