The fastest and most memory efficient lattice Boltzmann CFD software, running on all GPUs and CPUs via OpenCL. Free for non-commercial use.

ArrayFire: a general purpose GPU library.

CUDA Core Compute Libraries

Lightweight, general, scalable C++ library for finite element methods

Playing around "Less Slow" coding practices in C++ 20, C, CUDA, PTX, & Assembly, from numerics & SIMD to coroutines, ranges, exception handling, networking and user-space IO

Compiler for multiple programming models (SYCL, C++ standard parallelism, HIP/CUDA) for CPUs and GPUs from all vendors: The independent, community-driven compiler for C++-based heterogeneous programming models. Lets applications adapt themselves to all the hardware in the system - even at runtime!

Vulkan/CUDA/HIP/OpenCL/Level Zero/Metal Fast Fourier Transform library

SU2: An Open-Source Suite for Multiphysics Simulation and Design

A C++ GPU Computing Library for OpenCL

The development repository for the deal.II finite element library

An efficient C++20 GPU numerical computing library with Python-like syntax

Primary repository for the Trilinos Project

Expressive Vector Engine - SIMD in C++ Goes Brrrr

UCCL is an efficient communication library for GPUs, covering collectives, P2P (e.g., KV cache transfer, RL weight transfer), and EP (e.g., GPU-driven)

Programmable CUDA/C++ GPU Graph Analytics

The RaftLib C++ library, streaming/dataflow concurrency via C++ iostream-like operators

A lightweight high performance tensor algebra framework for modern C++

oneAPI Math Library (oneMath)

Numerical linear algebra software package

Image-processing software for cryo-electron microscopy