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hwloc

Portable abstraction of hierarchical architectures for high-performance computing

BSD-3-Clause www.open-mpi.org hwloc 22 releases newest changed 16 days ago

version2.14.0 attributehwloc rev419fe0f449b3fbe3bdd53d9840288db4509ec32e 2026-09-28 · one commit for every system systems✓ aarch64-darwin✓ aarch64-linuxx86_64-darwin✓ x86_64-linux

$ devbox add hwloc@2.14.0

$ nix shell github:NixOS/nixpkgs/419fe0f449b3fbe3bdd53d9840288db4509ec32e#hwloc

JSON: /v2/resolve?name=hwloc&version=latest

Releases

newest first, as /v2/pkg orders them

Version	arm mac	arm linux	x86 mac	x86 linux	Attribute	Commit	Date	Outputs
2.14.0resolved	✓	✓	–	✓	`hwloc`	02f5696b0e	2026-09-13	man, out, dev, doc, lib
2.13.0	✓	✓	✓	✓	`hwloc`	varies	2026-07-08	man, out, dev, doc, lib
2.12.2	✓	✓	✓	✓	`hwloc`	varies	2026-03-18	man, out, dev, doc, lib
2.12.1	✓	✓	✓	✓	`hwloc`	varies	2025-08-12	man, out, dev, doc, lib
2.12.0	✓	✓	✓	✓	`hwloc`	varies	2025-05-12	man, out, dev, doc, lib
2.11.2	✓	✓	✓	✓	`hwloc`	varies	2025-02-20	man, out, dev, doc, lib
2.11.1	✓	✓	✓	✓	`hwloc`	varies	2024-10-05	man, out, dev, doc, lib
2.11.0	✓	✓	✓	✓	`hwloc`	varies	2024-07-05	man, out, dev, doc, lib
2.10.0	✓	✓	✓	✓	`hwloc`	varies	2024-06-26	man, out, dev, doc, lib
2.9.3	✓	✓	✓	✓	`hwloc`	varies	2023-12-06	man, out, dev, doc, lib
2.9.2	✓	✓	✓	✓	`hwloc`	varies	2023-09-19	man, out, dev, doc, lib
2.9.1	✓	✓	✓	✓	`hwloc`	2169d3b0bc	2023-07-10	man, out, dev, doc, lib
2.9.0	✓	✓	✓	✓	`hwloc`	varies	2023-04-20	man, out, dev, doc, lib
2.8.0	✓	✓	✓	✓	`hwloc`	e37ef84b47	2022-12-19	man, out, dev, doc, lib
2.7.1	✓	✓	✓	✓	`hwloc`	varies	2022-07-31	man, out, dev, doc, lib
2.7.0	✓	✓	✓	✓	`hwloc`	varies	2022-04-17	man, out, dev, doc, lib
2.6.0	✓	–	✓	✓	`hwloc`	2e3fd2634d	2021-12-09
2.5.0	✓	–	✓	✓	`hwloc`	481afad265	2021-11-02
2.4.1	–	–	✓	✓	`hwloc`	varies	2021-06-02
2.4.0	–	–	–	✓	`hwloc`	5df05c902c	2021-02-27
2.3.0	–	–	–	✓	`hwloc`	5101b357ec	2020-12-08
2.2.0	–	–	–	✓	`hwloc`	83162ab3b9	2020-09-22

Prereleases are listed but latest never picks one. “varies” means each system last changed at a different nixpkgs commit — the release page lists them.

Description

hwloc provides a portable abstraction (across OS, versions, architectures, ...) of the hierarchical topology of modern architectures, including NUMA memory nodes, sockets, shared caches, cores and simultaneous multithreading. It also gathers various attributes such as cache and memory information. It primarily aims at helping high-performance computing applications with gathering information about the hardware so as to exploit it accordingly and efficiently. hwloc may display the topology in multiple convenient formats. It also offers a powerful programming interface to gather information about the hardware, bind processes, and much more.