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SamMausberg/README.md

Sam Mausberg

GPU systems, compilers, and mathematics. Based in Vancouver.

I'm building FindTensor, an experimental compiler and runtime for LLM inference.

Work

  1. KernelIndex — GPU kernels indexed by operation, shape, dtype, and hardware.
  2. B200 kernels — CUDA C++ and CuTe DSL kernels for SOL-ExecBench.
  3. H100 serving estimator — GPU time per request across 91 published vLLM runs.
  4. SmolLM2 conformance — CPU checks for full-sequence and KV-cache inference.
  5. Tensor parallel reference — A CPU reference for process-isolated decoder execution.
  6. FlashInfer — My fork of FlashInfer.

Previously worked with Tor Aamodt at UBC on GPU architecture simulation.

Also working on formalizations in Lean.

Playing around with GPT6 Astra to recreate bits of my favorite books in Blender.

1. KernelIndex — Matachin Tower2. B200 kernels — The serpent portrait3. H100 serving estimator — Combray in a cup of tea
4. SmolLM2 conformance — The shore5. Tensor parallel reference — The serpent at the throat6. FlashInfer — The courtyard of the Casa

Blender files

Books

The Book of the New Sun is my favorite.

  • Gene Wolfe: The Book of the Long Sun, The Book of the Short Sun, Peace.
  • José Donoso: The Obscene Bird of Night.
  • Sadegh Hedayat: The Blind Owl.
  • Samuel R. Delany: Dhalgren.
  • Thomas Pynchon: Gravity's Rainbow.
  • James Joyce: Ulysses.
  • Mikhail Bulgakov: The Master and Margarita.
  • Fernando Pessoa: The Book of Disquiet.
  • Marcel Proust: In Search of Lost Time.
  • Cormac McCarthy: Blood Meridian.
  • Vladimir Nabokov: Pale Fire.
  • William H. Gass: The Tunnel.

Want to read

  • Julien Gracq: The Opposing Shore.
  • Mircea Cărtărescu: Blinding: Book One.
  • Bruno Schulz: The Street of Crocodiles and Other Stories.
  • Sylvie Germain: The Book of Nights.
  • László Krasznahorkai: Seiobo There Below.
  • Hermann Broch: The Death of Virgil.
  • Mercè Rodoreda: Death in Spring.
  • Carlos Fuentes: Terra Nostra.
  • Leonid Tsypkin: Summer in Baden-Baden.

FindTensor · LinkedIn · Email

Pinned Loading

  1. KernelIndex KernelIndex Public

    An open performance index for GPU kernels. Search by operation, shape, dtype, and hardware to find the fastest known implementation.

    TypeScript

  2. sol-execbench-b200-kernels sol-execbench-b200-kernels Public

    B200 kernel optimization for NVIDIA SOL-ExecBench #38: fused multi-head RMSNorm for FLUX.2 Q/K tensors.

    Python

  3. h100-serving-estimator h100-serving-estimator Public

    Reproducible H100 GPU-seconds/request study for 91 pinned Command A+ vLLM runs, with held-out evaluation, coverage diagnostics, and independent verification.

    Python

  4. smollm2-cpu-conformance smollm2-cpu-conformance Public

    Reproducible CPU numerical conformance study for SmolLM2-135M full-sequence and incremental KV-cache execution.

    Python

  5. tensor-parallel-reference tensor-parallel-reference Public

    CPU reference for process-isolated tensor-parallel decoder execution, exact wire accounting, and fail-closed fault tests.

    Python

  6. contracted-moment-kernels contracted-moment-kernels Public

    Boundary certificates and moment summaries. Research prototype; verification incomplete.

    Python 1