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FPBench

FPBench provides benchmarks, compilers, and standards for the floating-point research community.

Build Status

Setup

To use FPBench tools, install Racket 7.x. Racket 8.0 or later (on Chez Scheme) is not currently supported. Then, run make setup to install dependencies and compile the tools.

Benchmarks

The FPBench benchmarks are located in benchmarks/ in FPCore format.

FPBench contains 98 benchmarks from four sources (FPTaylor, Herbie, Salsa, and Rosa) covering a variety of application domains and the full complement of FPCore features.

Compilers

FPBench develops two compiler tools for FPCore programs:

  • export.rkt, which exports FPCore computations to languages like C or JavaScript and to input formats for tools like Daisy, Gappa, and FPTaylor.
  • transform.rkt, which applies transformations FPCore computations, such as sipmlifying preconditions, unrolling loops, or expanding syntax sugar.

These tools are documented online.

Standards

The FPBench standards are located online. FPBench contains standards for:

  • The FPCore format for floating-point computations. FPCore is a simple S-expression functional programming language and can represent arithmetic, transcendental operators, loops, and conditionals.
  • Metadata to describe the provenance and interpretation of FPCore computations.
  • Measures to describe accuracy measurements for FPCore computations. Several measures are standardized.

Each standard has achieved 1.1 status and can be used by implementations. The standards are maintained in another repository on Github.

Papers

Toward a Standard Benchmark Format and Suite for Floating-Point Analysis, at NSV’16, by N. Damouche, M. Martel, P. Panchekha, C. Qiu, A. Sanchez-Stern, and Z. Tatlock

Described the FPBench standards project, including the FPCore standard. The standards (in www/spec) continue this work.

Combining Tools for Optimization and Analysis of Floating-Point Computations, at FM’18, by H. Becker, P. Panchekha, E. Darulova, and Z. Tatlock

Described experiments combining Daisy and Herbie using the FPBench format and tools. All scripts are available in the daisy_herbie branch.

Helping Out

FPBench is organized on our mailing list where we discuss work in progress, edit proposed standards, and announce major improvements. Email us if you have questions or would like to get involved!

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A standard for floating point accuracy benchmarks

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