Exact Chunks Parallel Iterator #1192
Description
Activity
We should add a
ParallelIteratorimplementation forParallel<ExactChunks/Mut>.In the meantime, a workaround is to
Zip's parallel methods:use ndarray::prelude::*; use ndarray::Zip; fn main() { let mut a = Array2::<u8>::zeros([6, 6]); Zip::from(a.exact_chunks_mut([3, 3])).par_for_each(|mut chunk| chunk.diag_mut().fill(1)); assert_eq!( a, array![ [1, 0, 0, 1, 0, 0], [0, 1, 0, 0, 1, 0], [0, 0, 1, 0, 0, 1], [1, 0, 0, 1, 0, 0], [0, 1, 0, 0, 1, 0], [0, 0, 1, 0, 0, 1], ], ); }
The
par_azip!macro may be a bit more convenient.Regardless, make sure to enable to
rayonfeature.Reacted by Benjamin Wilson
Hello,
Thank you for this fantastic package.
I would like to split an
MxNarray intok^2chunks of size(M/k)x(N/k)and then process these in parallel. I'm aware ofexact_chunks, but it doesn't natively supportpar_iter, right? What is the idiomatic way to do this?