mwa-hyperbeam 0.5.1

Primary beam code for the Murchison Widefield Array (MWA) radio telescope.

This is a release of mwa_hyperbeam, primary beam code for the MWA, obtained from the GitHub releases page.

Licensing

hyperbeam is licensed under the Mozilla Public License 2.0 (MPL 2.0). The LICENSE file is the relevant copy.

Other licenses are included from the hdf5 (COPYING-hdf5) and erfa (LICENSE-erfa) libraries. These are included because (as per the terms of the licenses) hdf5 and erfa are compiled inside the hyperbeam products in this tarball.

What are these different x86-64 versions?

They are microarchitecture levels. By default, Rust compiles for all x86-64 CPUs; this allows maximum compatibility, but potentially limits the runtime performance because many modern CPU features can't be used. Compiling at different levels allows the code to be optimised for different classes of CPUs so users can get something that works best for them.

Rule of thumb for which microarchitecture to use

You're probably safe with x86-64-v2, especially if your CPU was made after 2010. If your CPU is older than that, you may want x86-64. If your CPU is a little newer, x86-64-v3 is also likely to work. x86-64-v4 isn't widely supported (AVX-512), so only use that if you know it works.