NumExpr: A Fast Numerical Array Expression Evaluator for Python and NumPy
By
tosh
Crisp on the outside, thoughtful on the inside. A keeper.
Summary
NumExpr is a fast numerical expression evaluator for NumPy that accelerates array operations (like '3*a+4*b') and reduces memory usage compared to standard Python calculations. It features multi-threaded capabilities to utilize all CPU cores, resulting in substantial performance improvements for numerical computing in Python, NumPy, Pandas, PyTables, and related data analysis libraries.
Key quotes
· 3 pulledNumExpr is a fast numerical expression evaluator for NumPy.
With it, expressions that operate on arrays (like '3*a+4*b') are accelerated and use less memory than doing the same calculation in Python.
In addition, its multi-threaded capabilities can make use of all your cores -- which generally results in substantial performance.
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