| matrixmultiply |
| ============== |
| |
| General matrix multiplication for f32, f64 matrices. |
| |
| Allows arbitrary row, column strided matrices. |
| |
| Uses the same microkernel algorithm as BLIS_, but in a much simpler |
| and less featureful implementation. |
| See their multithreading_ page for a very good diagram over how |
| the algorithm partitions the matrix (*Note:* this crate does not implement |
| multithreading). |
| |
| .. _BLIS: https://github.com/flame/blis |
| |
| .. _multithreading: https://github.com/flame/blis/wiki/Multithreading |
| |
| Please read the `API documentation here`__ |
| |
| __ https://docs.rs/matrixmultiply/ |
| |
| Blog posts about this crate: |
| |
| + `A Gemmed Rabbit Hole`__ |
| |
| __ https://bluss.github.io/rust/2016/03/28/a-gemmed-rabbit-hole/ |
| |
| |build_status|_ |crates|_ |
| |
| .. |build_status| image:: https://travis-ci.org/bluss/matrixmultiply.svg?branch=master |
| .. _build_status: https://travis-ci.org/bluss/matrixmultiply |
| |
| .. |crates| image:: https://meritbadge.herokuapp.com/matrixmultiply |
| .. _crates: https://crates.io/crates/matrixmultiply |
| |
| **NOTE: Compile this crate using** ``RUSTFLAGS="-C target-cpu=native"`` **so |
| that the compiler can produce the best output.** |
| |
| Recent Changes |
| -------------- |
| |
| - 0.1.14 |
| |
| - Avoid an unused code warning |
| |
| - 0.1.13 |
| |
| - Pick 8x8 sgemm (f32) kernel when AVX target feature is enabled |
| (with Rust 1.14 or later, no effect otherwise). |
| - Use ``rawpointer``, a µcrate with raw pointer methods taken from this |
| project. |
| |
| - 0.1.12 |
| |
| - Internal cleanup with retained performance |
| |
| - 0.1.11 |
| |
| - Adjust sgemm (f32) kernel to optimize better on recent Rust. |
| |
| - 0.1.10 |
| |
| - Update doc links to docs.rs |
| |
| - 0.1.9 |
| |
| - Workaround optimization regression in rust nightly (1.12-ish) (#9) |
| |
| - 0.1.8 |
| |
| - Improved docs |
| |
| - 0.1.7 |
| |
| - Reduce overhead slightly for small matrix multiplication problems by using |
| only one allocation call for both packing buffers. |
| |
| - 0.1.6 |
| |
| - Disable manual loop unrolling in debug mode (quicker debug builds) |
| |
| - 0.1.5 |
| |
| - Update sgemm to use a 4x8 microkernel (“still in simplistic rust”), |
| which improves throughput by 10%. |
| |
| - 0.1.4 |
| |
| - Prepare support for aligned packed buffers |
| - Update dgemm to use a 8x4 microkernel, still in simplistic rust, |
| which improves throughput by 10-20% when using AVX. |
| |
| - 0.1.3 |
| |
| - Silence some debug prints |
| |
| - 0.1.2 |
| |
| - Major performance improvement for sgemm and dgemm (20-30% when using AVX). |
| Since it all depends on what the optimizer does, I'd love to get |
| issue reports that report good or bad performance. |
| - Made the kernel masking generic, which is a cleaner design |
| |
| - 0.1.1 |
| |
| - Minor improvement in the kernel |
