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#hpc (30 Repositories)

Ranked open-source repositories tagged with #hpc, scored by pull request acceptance likelihood and maintainer engagement velocity.

Topic Avg Merge Rate

75.3%

Avg Review Latency

10.5h

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30 repositories tagged #hpc

S TierGo 6.0k 11 GFIs

volcano-sh/volcano

A Cloud Native Batch System (Project under CNCF)

41.7%
Merge Rate
-
First Review
37%
1st-Timers
74
Maintainers
S TierPython 57 1 GFIs

ascii-supply-networks/dagster-slurm

Dagster SLURM integration

94.0%
Merge Rate
<1h
First Review
100%
1st-Timers
4
Maintainers
S TierGo 2.0k

apptainer/apptainer

Apptainer: Application containers for Linux

89.3%
Merge Rate
4h
First Review
83%
1st-Timers
11
Maintainers
S TierC++ 1.7k

dealii/dealii

The development repository for the deal.II finite element library

86.8%
Merge Rate
1d
First Review
81%
1st-Timers
26
Maintainers
A TierGo 444

nebius/soperator

Run Slurm in Kubernetes

79.2%
Merge Rate
15h
First Review
62%
1st-Timers
13
Maintainers
A TierC 999

openhpc/ohpc

OpenHPC Integration, Packaging, and Test Repo

70.0%
Merge Rate
1d
First Review
100%
1st-Timers
7
Maintainers
S TierPython 149 1 GFIs

spack/spack-packages

Spack's community package recipes

79.1%
Merge Rate
-
First Review
78%
1st-Timers
164
Maintainers
S TierPython 674

lablup/backend.ai

Backend.AI is a streamlined, container-based computing cluster platform that hosts popular computing/ML frameworks and diverse programming languages, with pluggable heterogeneous accelerator support including CUDA GPU, ROCm GPU, Gaudi NPU, Google TPU, GraphCore IPU and other NPUs.

73.4%
Merge Rate
-
First Review
69%
1st-Timers
15
Maintainers
A TierC++ 409 1 GFIs

QMCPACK/qmcpack

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

84.1%
Merge Rate
-
First Review
100%
1st-Timers
15
Maintainers
A TierZig 4.2k

zml/zml

Any model. Any hardware. Zero compromise. Built with @ziglang / @openxla / MLIR / @bazelbuild

71.1%
Merge Rate
-
First Review
71%
1st-Timers
22
Maintainers
A TierRust 126

tracel-ai/cubek

CubeK: high-performance multi-platform kernels in CubeCL

77.7%
Merge Rate
-
First Review
81%
1st-Timers
9
Maintainers
A TierC++ 329

ornladios/ADIOS2

Next generation of ADIOS developed in the Exascale Computing Program

72.2%
Merge Rate
-
First Review
80%
1st-Timers
12
Maintainers
A TierC++ 197 1 GFIs

llnl/axom

CS infrastructure components for HPC applications

71.3%
Merge Rate
14h
First Review
60%
1st-Timers
19
Maintainers
A TierPython 283 2 GFIs

reframe-hpc/reframe

A powerful Python framework for writing and running portable regression tests and benchmarks for HPC systems.

87.5%
Merge Rate
11h
First Review
100%
1st-Timers
5
Maintainers
A TierFOFortran 432 44 GFIs

MFlowCode/MFC

Exascale multiphase flow solver — 2025 Gordon Bell Prize Finalist | 200T grid points on 43K+ GPUs

54.8%
Merge Rate
2h
First Review
33%
1st-Timers
14
Maintainers
A TierC++ 1.4k

NVIDIA/MatX

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

85.3%
Merge Rate
2d
First Review
75%
1st-Timers
8
Maintainers
A TierC++ 1.5k

uccl-project/uccl

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)

86.9%
Merge Rate
4d
First Review
89%
1st-Timers
13
Maintainers
A TierC++ 428

alpaka-group/alpaka

Abstraction Library for Parallel Kernel Acceleration :llama:

61.9%
Merge Rate
5h
First Review
100%
1st-Timers
8
Maintainers
A TierTypeScript 193

Hello-QM/catgo-LRG

AI-driven workbench for computational materials science — interactive 3D structure viewer, natural-language CatBot assistant, visual DAG workflow engine, HPC job submission. Tauri desktop app with SvelteKit frontend and FastAPI Python backend. Drives VASP, ORCA, CP2K, QE, GPAW, DFTB+, SIESTA, LAMMPS.

92.7%
Merge Rate
-
First Review
67%
1st-Timers
2
Maintainers
A TierPython 5.1k

spack/spack

A flexible package manager that supports multiple versions, configurations, platforms, and compilers.

59.1%
Merge Rate
-
First Review
46%
1st-Timers
52
Maintainers
A TierC 1.7k

openucx/ucx

Unified Communication X (mailing list - https://elist.ornl.gov/mailman/listinfo/ucx-group)

43.0%
Merge Rate
<1h
First Review
41%
1st-Timers
47
Maintainers
B TierC++ 242

kokkos/ArborX

Performance-portable geometric search library

100.0%
Merge Rate
1h
First Review
100%
1st-Timers
3
Maintainers
A TierC++ 241

charmplusplus/charm

The Charm++ parallel programming system. Visit https://charmplusplus.org/ for more information.

80.5%
Merge Rate
-
First Review
100%
1st-Timers
5
Maintainers
A TierJUJulia 49.2k 1 GFIs

JuliaLang/julia

The Julia Programming Language

59.8%
Merge Rate
-
First Review
49%
1st-Timers
94
Maintainers
A TierC++ 1.4k

trilinos/Trilinos

Primary repository for the Trilinos Project

69.2%
Merge Rate
-
First Review
93%
1st-Timers
35
Maintainers
A TierC++ 296

llnl/blt

A streamlined CMake build system foundation for developing HPC software

100.0%
Merge Rate
20h
First Review
100%
1st-Timers
3
Maintainers
A TierFOFortran 156

cp2k/dbcsr

DBCSR: Distributed Block Compressed Sparse Row matrix library

91.7%
Merge Rate
2h
First Review
100%
1st-Timers
2
Maintainers
A TierPython 449

easybuilders/easybuild-easyconfigs

A collection of easyconfig files that describe which software to build using which build options with EasyBuild.

62.2%
Merge Rate
19h
First Review
62%
1st-Timers
50
Maintainers
A TierRust 104

uccl-project/rdmatop

htop-like TUI for real-time RDMA network monitoring.

96.4%
Merge Rate
3h
First Review
100%
1st-Timers
1
Maintainers
A TierFOFortran 245 1 GFIs

ExtremeFLOW/neko

/ᐠ. 。.ᐟ\ᵐᵉᵒʷˎˊ˗

38.5%
Merge Rate
11h
First Review
33%
1st-Timers
8
Maintainers
Best Hpc Open Source Repositories & C-Rank™ | GetMerged