Peroxide with BLAS Example Repo

Warning

DEPRECATED. This guide describes the manual BLAS setup for peroxide <= 0.40 and is outdated. Since peroxide 0.41.1, backend selection is built into the crate's feature flags:

cargo add peroxide --features O3-openblas          # OpenBLAS compiled from source
cargo add peroxide --features O3-openblas-system   # system-installed OpenBLAS (pkg-config)
cargo add peroxide --features O3-accelerate        # Apple Accelerate (macOS)
cargo add peroxide --features O3-mkl               # Intel MKL

See the Pre-requisite section of the main README for details. The bare O3 flag remains available as an escape hatch for custom backends such as BLIS; only in that case does the manual setup below still apply. This repository is kept for historical reference and is archived.

Rust blas ecosystem

Peroxide uses blas and lapack crate in O3 feature. But they are just wrapper crates, so we need source crates.

There are several source crates to provide concrete implementations of BLAS and LAPACK.

• accelerate-src
• blis-src
• intel-mkl-src
• netlib-src
• openblas-src

And they have system feature to skip building the bundled BLAS implementation.

For Arch-linux

For specifically, I'll explain Arch-linux case. In arch linux, you can install openblas or blis. (Also blas is there, but blas-src does not provide system feature.)

• Use OpenBLAS : Add openblas-src dependency to Cargo.toml as same as this repo's Cargo.toml
• Use BLIS : Add blis-src dependency to Cargo.toml as same as this repo's Cargo.toml

And add extern crate <CRATE> to your lib.rs or main.rs. The <CRATE> is one of above source crates. In this repo, I used blis-src.

References

• blas-lapack-rs
• ndarray