qthreads ☆

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Description:
Lightweight locality-aware user-level threading runtime

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Developer tools

Tags: threading hpc parallelism runtime library

Install: brew install qthreads

About:
Qthreads is a user-level threading library designed for high-performance computing. It provides lightweight, locality-aware threads that are managed efficiently in user space, minimizing overhead and maximizing parallelism on multi-core and NUMA architectures.

Key Features:

Lightweight user-level threads
Locality-aware scheduling
Low synchronization overhead
Support for massive thread counts

Use Cases:

High-performance scientific computing applications
Parallelizing fine-grained tasks in C/C++/Fortran
NUMA-aware application development

Alternatives:

OpenMP – Higher-level directive-based parallelism, often easier to use but less flexible for complex task graphs.
Intel TBB – Robust C++ template library for parallelism, similar goals but with different scheduling and memory models.

Version History

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