Lucen

Lucen is a source-to-source compiler that automatically parallelizes ordinary Python loops using comment pragmas. It parallelizes only the loops it can prove are both safe and worthwhile, and guarantees that a parallel run is bit-identical to the same file executed as plain sequential Python.

import lucen
lucen.activate()

# LUCEN START
for i in range(len(records)):
    scores[i] = score(records[i])
# LUCEN END

This site hosts the developer reference and the generated API documentation. The user-facing guides are maintained in the repository and render on GitHub:

• README and quickstart
• Limitations
• Roadmap
• Stability policy
• Benchmarks
• Contributing

Reference on this site

• Architecture, the pipeline and dispatch flow with diagrams
• Pragma and clause reference, every pragma and clause
• API reference, generated from the public API
• Glossary, the domain terms in one place
• Paper, the design and evaluation
• Technical specification
• Engineering guide
• Formal specifications
• Architecture decisions