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Talks - Mridul Seth, Erik Welch: NetworkX is Fast Now: Graph Analytics Unleashed
Discover how NetworkX's new backend dispatching system enables 100-1000x speedups through GPU acceleration and optimized processing, while maintaining its simple API.
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NetworkX is a 20-year-old pure Python graph analytics library with 50M monthly downloads on PyPI, offering zero dependencies and broad compatibility
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Recent performance improvements through backend dispatching allow 100-1000x speedups without code changes, particularly using GPU acceleration via cuGraph
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Three main open-source backends currently available:
- NXCuGraph (GPU acceleration with CUDA)
- Graph+ (CPU optimized)
- NXParallel (parallel processing using JobLib)
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New caching system in NetworkX 3.3 allows storing converted graph representations for repeated operations, significantly reducing overhead
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Backend implementations must pass NetworkX test suite for compatibility, providing free testing, documentation and API consistency
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Experimental work exploring integration with graph databases for data persistence beyond memory-only operations
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Performance improvements enable processing of much larger graphs - from minutes to seconds for operations like betweenness centrality
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Focus on maintaining simple API and ease of use while adding scalability options
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Community-governed project with no corporate ownership, emphasizing documentation and examples
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Working toward standardized Graph API layer similar to Array API/DataFrame protocol for interoperability between different implementations