Kratos Multiphysics (A.K.A Kratos) is a framework for building parallel multi-disciplinary simulation software. Modularity, extensibility and HPC are the main objectives. Kratos has BSD license and is written in C++ with extensive Python interface.

High-performance stateful serverless runtime based on WebAssembly

C++ library for solving large sparse linear systems with algebraic multigrid method

distributed dataflows with functional list operations for data processing with C++14

Fast multi-thread FEC simulator & library of efficient digital communication algorithms for SDR.

🍇 A C++ library for parallel graph processing (GRAPE) 🍇

RAxML Next Generation: faster, easier-to-use and more flexible

DMTCP: Distributed MultiThreaded CheckPointing

An adaptive and distributed-memory parallel implementation of the immersed boundary (IB) method

Modular C++ Toolkit for Performance Analysis and Logging. Profiling API and Tools for C, C++, CUDA, Fortran, and Python. The C++ template API is essentially a framework to creating tools: it is designed to provide a unifying interface for recording various performance measurements alongside data logging and interfaces to other tools.

Particle-in-cell code for plasma simulation

🔬 Assemble large genomes using short reads

Cylon is a fast, scalable, distributed memory, parallel runtime with a Pandas like DataFrame.

Main repository for QMCPACK, an open-source production level many-body ab initio Quantum Monte Carlo code for computing the electronic structure of atoms, molecules, and solids with full performance portable GPU support

QUDA is a library for performing calculations in lattice QCD on GPUs.

LargeScale Multiphysics Scientific Simulation Environment-OneFLOW CFD

HPC solver for nonlinear optimization problems

A flyweight in situ visualization and analysis runtime for multi-physics HPC simulations

Distributed Communication-Optimal Matrix-Matrix Multiplication Algorithm

parallel finite element unstructured meshes