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davrens101/README.md

Davis Rens

Co-founder and Chief Scientific Officer at SuperMatics, accelerating superconductor R&D with quantum-mechanical simulation, machine learning and real laboratory data. Berkeley, California.

LinkedIn · SuperMatics

What I work on

  • Superconductor materials R&D: choosing materials and synthesis experiments with simulation, ML and measured data.
  • Quantum hardware and cryogenics: dilution-refrigerator systems, heat budgets and thermal models for superconducting processors (previously at Rigetti Computing).
  • Scientific software: Python, Rust and PyTorch for experimental data analysis and anomaly detection (previously at Berkeley Lab).

Open-source contributions

Small, reproducible fixes to the scientific tools I depend on: scientific plotting, numerical and dataframe libraries, and materials and simulation tooling. This table is regenerated daily from my public pull requests on other people's repositories.

Project Pull request Status
fusion-energy/openmc-plasma-source Ignore zero-fraction fuel components when determining reactions Merged
qiboteam/qibo Fix dagger implementation for DEUTSCH gate Merged
emdgroup/baybe Fix desirability posterior offsets for minimized targets Merged
rdkit/rdkit Fix overly broad donor SMARTS in the pharmacophore tutorial Merged
huggingface/pytorch-image-models Fix ZeroDivisionError in train.py and legacy_train.py throughput calculation Open
qiboteam/qibo Implement _dagger for iSWAP gate Open
qiboteam/qibo Fix from_qasm parsing for iswap gate Open
WMD-group/SMACT fix(screening): handle fractional stoichiometry in smact_validity Open
lab-cosmo/torch-pme Preserve slab-correction energies and forces under cell rotation Open
torchmd/torchmd-net Fix TensorNet2 repulsion scaling during denormalization Open
biopython/biopython Fix IsoelectricPoint.pi() returning wrong pI for strongly acidic/basic sequences Open
ultralytics/ultralytics Fix(ops): support varying tile sizes in dense map merge_tiles Open
mlflow/mlflow Fix Model.load treating MLmodel file paths containing / as directories on Windows Open
mlflow/mlflow Fix resolve_uri_if_local dropping the // authority marker for Windows drive paths Open
lanpa/tensorboardX Keep numpy scalar values in summary.hparams Open
evalplus/evalplus Read/write per-solution .py files as UTF-8 Open
PlasmaControl/DESC Fix Curve.rotmat setter for list input and invalid shapes Open
dwavesystems/dwave-system Preserve sample ownership and explicit methods when unembedding Open
neuraloperator/neuraloperator Fix real Fourier resampling parity, Nyquist amplitudes and precision Open
rigetti/pyquil Fix qubit ordering in exponentiate_pauli_sum Open
QunaSys/quri-sdk Apply is_hermitian atol as an absolute tolerance Open
rsennrich/subword-nmt fix(learn_bpe): do not crash when there are no learnable pairs Open
KellerJordan/Muon Fix SingleDeviceMuon crash on 1-D parameters Open
microsoft/mattersim Preserve nonperiodic coordinates in graph conversion Open
microsoft/mattersim fix(utils): correctly round cube root in auto_grid_detection Open
allenai/Olmo-core Fix ZeroDivisionError in InvSqrtWithWarmup at step 0 with warmup=0 Open
mlfoundations/open_clip fix(tokenizer): support single string input in mask tokenization functions Open
quantumgizmos/ldpc pymatching_overlapping_window: fix Bernoulli log-odds formula in _get_weights Open
quantumgizmos/ldpc dem_matrices: skip zero-probability DEM errors to preserve observable labels Open
NVIDIA/earth2studio Fix coordinate roll direction in map_coords Open
vllm-project/vllm fix(tool_parsers): preserve trailing content in Hermes2ProToolParser Open
facebookresearch/schedule_free Fix base optimizer state initialization in ScheduleFreeWrapper Open
Unstructured-IO/unstructured fix(chunking): measure inter-chunk overlap in tokens under token chunking Open
mlfoundations/open_clip fix(loss): accept logit_bias in DistillClipLoss.forward Open
deepmodeling/dpdata fix(system): make pick_atom_idx return independent atom data Open
lucidrains/hyper-connections Fix channel-first layout support when num_fracs > 1 and in mHC Open
Lightning-AI/utilities fix(imports): evaluate environment markers in RequirementCache Open
biotite-dev/biotite Support opposite direction vectors in align_vectors Open
Farama-Foundation/Gymnasium-Robotics Preserve angle quadrants and avoid zero division in point_euler2euler Open
google-deepmind/open_spiel Fix PyTorch Deep CFR action probabilities normalization and player support Open
paulromano/endf-python Fix division by zero when integrating Tabulated1D with discontinuities Open
Lightning-AI/LitServe fix(server): handle SIGTERM for graceful shutdown in run() Open
vacanza/holidays Fix HolidaySum working-day methods ignoring operands' weekends Open
vacanza/holidays Fix fullwidth parentheses in observed estimated labels Open
rasbt/mlxtend Return Q=0, p=1 from cochrans_q when there are no discordant predictions Open
neuropsychology/NeuroKit [Fix] read_xdf: disambiguate duplicate channel names within streams Open
torchmd/torchmd-net Preserve pair-free samples in Coulomb batch reduction Open
PyCQA/isort fix(parse): keep statements after balancing close-paren in parenthesized imports Open

How I contribute

  1. Start from issues a maintainer has already accepted, and check nobody else is on them.
  2. Reproduce first. Add a test that fails without the fix, then make the smallest change that passes it.
  3. Show before and after evidence, run the project's own checks, and report honestly which ones fail and why.
  4. I use AI coding tools for research and drafting. I review every change myself and disclose AI assistance in each pull request, following each project's policy.

Pinned Loading

  1. huggingface/diffusers huggingface/diffusers Public

    🤗 Diffusers: State-of-the-art diffusion models for image, video, and audio generation in PyTorch.

    Python 34.9k 7.5k

  2. Comfy-Org/ComfyUI Comfy-Org/ComfyUI Public

    The most powerful and modular diffusion model GUI, api and backend with a graph/nodes interface. The fastest local inference engine in the world.

    Python 146k 17.4k

  3. vllm-project/vllm vllm-project/vllm Public

    A high-throughput and memory-efficient inference and serving engine for LLMs

    Python 96.7k 24.7k

  4. mem0ai/mem0 mem0ai/mem0 Public

    The Memory Layer for AI Agents - Drop-in memory infrastructure for AI agents and apps. Context that persists. Built for production.

    Python 68.8k 8.2k

  5. run-llama/llama_index run-llama/llama_index Public

    LlamaIndex is the document processing platform for AI

    Python 52.9k 8.5k

  6. plotly/plotly.js plotly/plotly.js Public

    Open-source JavaScript charting library behind Plotly and Dash

    JavaScript 18.4k 2.1k