Doctor Syn and Libmgen

Sponsored by Atomic Increment Ltd and Embecosm Ltd.

This project is focused on generating the highest performing mathematical functions for Rust, C, C++ and Fortran.

The libmgen command line tool and associated library doctor_syn generate polynomial approximations of mathematical functions which will parallelise and vectorise.

The goal is to replace mathematical functions in R, Numpy and GNU octave with much faster versions.

See

To run libmgen, first install Rust using rustup and then use

cargo install libmgen

to install the command line tool locally. Cargo will download and build the library for your platform.

libmgen --help

Gives the options.

libmgen --functions sin -o sin.rs

Generates sin(x) in Rust for 64 bit float.

#[allow (non_camel_case_types)]
type fty =f64 ;

const RECIP_2PI :fty =0.1591549430918953357688837633725143620345;

pub fn sin (arg : fty)->fty {
  let scaled :fty =arg *RECIP_2PI ;
  let x :fty =scaled -scaled .round ();
  (- 0.0000795978135564681619446994463825844449 as f64).mul_add (x * x , 0. ...
}

Milestones

[ ] Rust codegen complete for all IEEE functions. [ ] C/C++ codegen complete. [ ] Fortran codegen.