Pyccel — Peer-reviewed • Rank 18.4 • Science 100%

Pyccel: a Python-to-X transpiler for scientific high-performance computing - Published in JOSS (2023)

Executorlib – Up-scaling Python workflows for hierarchical heterogenous high-performance computing — Peer-reviewed • Rank 15.6 • Science 100%

Executorlib – Up-scaling Python workflows for hierarchical heterogenous high-performance computing - Published in JOSS (2025)

mpi4jax — Peer-reviewed • Rank 14.6 • Science 100%

mpi4jax: Zero-copy MPI communication of JAX arrays - Published in JOSS (2021)

The Python Sky Model 3 software — Peer-reviewed • Rank 13.4 • Science 100%

The Python Sky Model 3 software - Published in JOSS (2021)

DeepHyper — Peer-reviewed • Rank 17.6 • Science 95%

DeepHyper: A Python Package for Massively Parallel Hyperparameter Optimization in Machine Learning - Published in JOSS (2025)

schwimmbad — Peer-reviewed • Rank 16.3 • Science 95%

schwimmbad: A uniform interface to parallel processing pools in Python - Published in JOSS (2017)

t8code - modular adaptive mesh refinement in the exascale era — Peer-reviewed • Rank 10.8 • Science 100%

t8code - modular adaptive mesh refinement in the exascale era - Published in JOSS (2025)

ParaMonte — Peer-reviewed • Rank 13.2 • Science 95%

ParaMonte: A high-performance serial/parallel Monte Carlo simulation library for C, C++, Fortran - Published in JOSS (2021)

GridapDistributed — Peer-reviewed • Rank 12.7 • Science 95%

GridapDistributed: a massively parallel finite element toolbox in Julia - Published in JOSS (2022)

madupite — Peer-reviewed • Rank 5.3 • Science 100%

madupite: A High-Performance Distributed Solver for Large-Scale Markov Decision Processes - Published in JOSS (2025)

MPIFiles.jl — Peer-reviewed • Rank 9.0 • Science 95%

MPIFiles.jl: A Julia Package for Magnetic Particle Imaging Files - Published in JOSS (2019)

neworder — Peer-reviewed • Rank 8.2 • Science 95%

neworder: a dynamic microsimulation framework for Python - Published in JOSS (2021)

AmgXWrapper — Peer-reviewed • Rank 6.3 • Science 95%

AmgXWrapper: An interface between PETSc and the NVIDIA AmgX library - Published in JOSS (2017)

ExaDEM — Peer-reviewed • Rank 5.9 • Science 93%

ExaDEM: a HPC application based on exaNBody targeting scalable DEM simulations with complex particle shapes - Published in JOSS (2025)

Excimontec v1.0 — Peer-reviewed • Rank 5.5 • Science 93%

Excimontec v1.0: An Open-Source Software Tool for Kinetic Monte Carlo Simulations of Organic Electronic Devices - Published in JOSS (2020)

sboxgates — Peer-reviewed • Rank 4.4 • Science 93%

sboxgates: A program for finding low gate count implementations of S-boxes - Published in JOSS (2021)

openpmd-api • Rank 19.4 • Science 77%

:floppy_disk: C++ & Python API for Scientific I/O

SARAS — Peer-reviewed • Rank 2.2 • Science 93%

SARAS: A general-purpose PDE solver for fluid dynamics - Published in JOSS (2021)

heat • Rank 16.8 • Science 77%

Distributed tensors and Machine Learning framework with GPU and MPI acceleration in Python

mpi4py • Rank 25.4 • Science 67%

Python bindings for MPI

perun • Rank 12.5 • Science 75%

Perun is a Python package that measures the energy consumption of your applications.

PencilArrays • Rank 10.1 • Science 77%

Distributed Julia arrays using the MPI protocol

abyss • Rank 9.7 • Science 77%

:microscope: Assemble large genomes using short reads

MPI • Rank 19.5 • Science 67%

MPI wrappers for Julia

pennylane-lightning • Rank 21.8 • Science 64%

The Lightning plugin ecosystem provides fast quantum state-vector and tensor network simulators written in C++ for use with PennyLane.

core • Rank 10.2 • Science 75%

parallel finite element unstructured meshes

aluminum • Rank 8.4 • Science 72%

High-performance, GPU-aware communication library

tclmpi • Rank 3.2 • Science 77%

TclMPI - MPI Bindings for Tcl

tutorial-multi-gpu • Rank 8.1 • Science 72%

Efficient Distributed GPU Programming for Exascale, an SC/ISC Tutorial

sqsgenerator • Rank 12.0 • Science 67%

A command line tool written in Python/C++ for finding optimized SQS structures

numba-mpi • Rank 13.3 • Science 64%

Numba @jit compatible wrappers for MPI C API tested on Linux, macOS and Windows

PencilFFTs • Rank 9.7 • Science 67%

Fast Fourier transforms of MPI-distributed Julia arrays

pigeons.jl • Rank 11.4 • Science 64%

Sampling from intractable distributions, with support for distributed and parallel methods

arbor • Rank 17.2 • Science 54%

The Arbor multi-compartment neural network simulation library.

elmerfem • Rank 12.0 • Science 59%

Official git repository of Elmer FEM software

rockyml • Rank 2.9 • Science 67%

⛰️ RockyML - A High-Performance Scientific Computing Framework for Non-smooth Machine Learning Problems

cato • Rank 2.9 • Science 67%

Automatic source transformation to apply HPC frameworks with minimal user interaction

pypenred • Rank 10.5 • Science 59%

Parallel Engine for Radiation Energy Deposition

pika • Rank 8.3 • Science 59%

pika is a C++ tasking library built on std::execution with fibers, CUDA, HIP, and MPI support.

walky • Rank 11.8 • Science 54%

A Highly Parallelized TSP Solver using MPI

gchp • Rank 6.5 • Science 59%

The "superproject" wrapper repository for GCHP, the high-performance instance of the GEOS-Chem chemical-transport model.

arborx • Rank 9.8 • Science 54%

Performance-portable geometric search library

necsim-rust • Rank 4.7 • Science 59%

Spatially explicit biodiversity simulations using a parallel library written in Rust

swift • Rank 9.4 • Science 54%

Modern astrophysics and cosmology particle-based code. Mirror of gitlab developments at https://gitlab.cosma.dur.ac.uk/swift/swiftsim

https://github.com/open-mpi/ompi • Rank 23.9 • Science 36%

Open MPI main development repository

h5fortran-mpi • Rank 3.2 • Science 54%

HDF5-MPI parallel Fortran object-oriented interface

mpi-tutorial • Rank 4.1 • Science 44%

An MPI tutorial in Python

mpicpp-lite • Rank 0.0 • Science 44%

Light C++ wrapper around MPI

https://github.com/magneticparticleimaging/mpimeasurements.jl • Rank 6.8 • Science 36%

Julia package for performing MPI measurements

https://github.com/becksteinlab/mdanalysis-with-dask • Rank 3.0 • Science 36%

Benchmarking MDAnalysis with dask.

https://github.com/powsybl/powsybl-hpc • Rank 6.3 • Science 26%

High Performance Computing modules for powsybl

https://github.com/radiantone/blazer • Rank 6.0 • Science 23%

An HPC abstraction over MPI with built-in parallel compute primitives

https://github.com/byt3n33dl3/passwordcracker • Rank 5.1 • Science 13%

Attacking Assimilation-bridge by looping with SNMPv3 & GPG, usingas CPUs, FPGAs cycles: 0x989, most advanced password and logon recovery.

shamrock • Science 54%

The Shamrock Framework, an open-source, multi-GPU hydrodynamics framework for astrophysics. Scales seamlessly from laptops to exascale supercomputers, supporting SPH, AMR, and more.

maplib • Science 62%

MapLib provides algorithms for generating mapping of processing elements to processor unities.

https://github.com/becksteinlab/parallel-analysis-in-the-mdanalysis-library • Science 26%

Benchmarking MDAnalysis with Dask (and MPI). Supplementary Information for SciPy 2017 paper.

https://github.com/collab4exanbody/hippolbm • Science 26%

pism • Science 77%

Repository for the Parallel Ice Sheet Model (PISM)

pympdata-mpi • Science 26%

PyMPDATA + numba-mpi coupler sandbox

kamping • Science 67%

KaMPIng: (Near) zero-overhead MPI wrapper for modern C++

https://github.com/adamouization/relaxation-technique-parallel-computing • Science 13%

:repeat: Relaxation technique using POSIX threads (shared memory configuration) and MPI (distributed memory configuration).

empi • Science 67%

Enhanced Message Passing Interface in Modern C++

hydrocouple • Science 57%

HydroCouple Interface Specifications

rodriguezcorcho-2022-arccollision • Science 67%

simulateqcd • Science 49%

SIMULATeQCD is a multi-GPU Lattice QCD framework that makes it easy for physicists to implement lattice QCD formulas while still providing competitive performance.

hpl-hpcg • Science 31%

HPL & HPCG Walkthrough

dla-future • Science 67%

DLA-Future

https://github.com/bioinfo-pf-curie/mpisort • Science 13%

https://github.com/bioinfo-pf-curie/mpibwa • Science 13%

https://github.com/collab4exanbody/exanbody • Science 39%

exaNBody is an HPC platform for building N-body applications such as exaStamp, exaDEM, and exaSPH.

parallel-etudes • Science 44%

Parallel programming assignments using OpenMP, MPI and CUDA/OpenCL

GalerkinToolkit • Science 67%

High-performance finite element toolbox in Julia

ocgis • Science 10%

OpenClimateGIS is a set of geoprocessing and calculation tools for CF-compliant climate datasets.