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@plasma-umass

PLASMA @ UMass

Home of Scalene, Slipcover, BLeak, Hoard, and more.

PLASMA (Programming Languages and Systems at Massachusetts)

Current PhD Students

PLASMA projects

  • Scalene: A state-of-the-art CPU+GPU+memory profiler for Python, with AI-powered optimization suggestions PyPI Latest Release Anaconda-Server Badge Downloads Downloads GitHub stars
  • Coz: A causal profiler that tells you where to optimize your code (C/C++/Rust/Swift/Java) GitHub stars Rust crate downloads (just counting Rust crate downloads)
  • CSrankings: Ranks the world's CS departments GitHub stars
  • Slipcover: Nearly zero-overhead code coverage analysis for Python PyPI Latest Release Downloads GitHub stars
  • ChatDBG: AI-assisted debugging in lldb, gdb, and pdb. Uses AI to answer 'why' PyPI Latest Release Downloads Downloads GitHub stars
  • Commentator: Automatically comments Python code, adding docstrings and type annotations PyPI Latest Release Downloads Downloads GitHub stars
  • CWhy: ("See why") Explains and suggests fixes for C/C++/Rust compiler error messages. PyPI Latest Release Downloads Downloads GitHub stars
  • SQLwrite: SQLite3 with natural language to SQL, recommends indexes to optimize queries GitHub stars

Selected PLASMA publications

See this DBLP entry for a complete list of PLASMA papers co-authored by Emery Berger.

PhD Alumni

MS Alumni

PLASMA publications

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  1. scalene scalene Public

    Scalene: a high-performance, high-precision CPU, GPU, and memory profiler for Python with AI-powered optimization proposals

    Python 12.7k 415

  2. coz coz Public

    Coz: Causal Profiling

    C 4.3k 166

  3. ChatDBG ChatDBG Public

    ChatDBG - AI-assisted debugging. Uses AI to answer 'why'

    Python 969 61

  4. slipcover slipcover Public

    Near Zero-Overhead Python Code Coverage

    Python 534 25

  5. cwhy cwhy Public

    "See why!" Explains and suggests fixes for compile-time errors for C, C++, C#, Go, Java, LaTeX, PHP, Python, Ruby, Rust, and TypeScript

    Python 289 7

  6. sqlwrite sqlwrite Public

    SQLwrite: AI in your DBMS! Automatically converts natural language queries to SQL.

    C 122 9

Repositories

Showing 10 of 102 repositories
  • cwhy Public

    "See why!" Explains and suggests fixes for compile-time errors for C, C++, C#, Go, Java, LaTeX, PHP, Python, Ruby, Rust, and TypeScript

    plasma-umass/cwhy’s past year of commit activity
    Python 289 Apache-2.0 7 3 0 Updated Jun 11, 2025
  • coverup Public

    Automatic AI-powered test suite generator

    plasma-umass/coverup’s past year of commit activity
    Python 70 Apache-2.0 9 2 0 Updated Jun 10, 2025
  • scalene Public

    Scalene: a high-performance, high-precision CPU, GPU, and memory profiler for Python with AI-powered optimization proposals

    plasma-umass/scalene’s past year of commit activity
    Python 12,727 Apache-2.0 415 162 (1 issue needs help) 4 Updated May 28, 2025
  • plasma-umass.github.io Public

    home page

    plasma-umass/plasma-umass.github.io’s past year of commit activity
    HTML 2 0 0 0 Updated May 17, 2025
  • ChatDBG Public

    ChatDBG - AI-assisted debugging. Uses AI to answer 'why'

    plasma-umass/ChatDBG’s past year of commit activity
    Python 969 Apache-2.0 61 11 2 Updated May 2, 2025
  • slipcover Public

    Near Zero-Overhead Python Code Coverage

    plasma-umass/slipcover’s past year of commit activity
    Python 534 Apache-2.0 25 11 3 Updated Apr 30, 2025
  • pythoness Public

    Pythoness: use natural language to define Python functions.

    plasma-umass/pythoness’s past year of commit activity
    Python 18 2 0 0 Updated Apr 22, 2025
  • coverup-eval Public
    plasma-umass/coverup-eval’s past year of commit activity
    Python 1 Apache-2.0 0 0 0 Updated Apr 15, 2025
  • codamosa Public Forked from microsoft/codamosa
    plasma-umass/codamosa’s past year of commit activity
    Python 0 MIT 25 0 0 Updated Apr 12, 2025
  • MuTAP Public Forked from ExpertiseModel/MuTAP

    MutAP: A prompt_based learning technique to automatically generate test cases with Large Language Model

    plasma-umass/MuTAP’s past year of commit activity
    Python 0 10 0 0 Updated Apr 11, 2025