README
Weld
Weld is a language and runtime for improving the performance of data-intensive applications. It optimizes across libraries and functions by expressing the core computations in libraries using a common intermediate representation, and optimizing across each framework.
Modern analytics applications combine multiple functions from different libraries and frameworks to build complex workflows. Even though individual functions can achieve high performance in isolation, the performance of the combined workflow is often an order of magnitude below hardware limits due to extensive data movement across the functions. Weld’s take on solving this problem is to lazily build up a computation for the entire workflow, and then optimizing and evaluating it only when a result is needed.
You can join the discussion on Weld on our Google Group or post on the Weld mailing list at [email protected].
Contents
Building
To build Weld, you need the latest stable version of Rust and LLVM/Clang++ 6.0.
To install Rust, follow the steps here. You can verify that Rust was installed correctly on your system by typing rustc into your shell. If you already have Rust and rustup installed, you can upgrade to the latest stable version with:
rustup update stable