Repositories list

• ucx

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

  cc-plus-plusnetworking+ 17

  cc-plus-plusnetworkinghpcmpigeminipgasdriversrdmainfiniband+ 10

  C

  •

  Other

  •580580 forks•1.7k1.7k stars•697697 issues•126126 pull requests•Updated Jul 23, 2026Jul 23, 2026

• ucc

  Public
  Unified Collective Communication Library

  deep-learninghpcmpi+ 8

  deep-learninghpcmpicudapytorchpgassharpinfinibandroceopenshmem+ 1

  C

  •

  BSD 3-Clause "New" or "Revised" License

  •130130 forks•311311 stars•5858 issues•3434 pull requests•Updated Jul 17, 2026Jul 17, 2026

• xpmem

  Public
  Linux Cross-Memory Attach

  C++

  •

  GNU Lesser General Public License v2.1

  •3838 forks•2323 stars•22 issues•44 pull requests•Updated Apr 21, 2026Apr 21, 2026

• ODOS

  Public
  ODOS project

  C++

  •

  Other

  •00 forks•88 stars•00 issues•00 pull requests•Updated Apr 16, 2025Apr 16, 2025

• sparkucx

  Public
  A high-performance, scalable and efficient ShuffleManager plugin for Apache Spark, utilizing UCX communication layer

  big-datasparkapache-spark+ 3

  big-datasparkapache-sparkhadoophpcrdma

  Scala

  •

  BSD 3-Clause "New" or "Revised" License

  •3535 forks•5151 stars•77 issues•44 pull requests•Updated Oct 30, 2023Oct 30, 2023

• openhpca

  Public
  OpenHPCA working group repository

  C

  •33 forks•88 stars•22 issues•00 pull requests•Updated Apr 3, 2023Apr 3, 2023

• three-chains

  Public
  C

  •

  Other

  •11 fork•33 stars•00 issues•00 pull requests•Updated Nov 8, 2022Nov 8, 2022

• snapi-comm-channel

  Public
  OpenSNAPI communication channel

  C

  •11 fork•00 stars•00 issues•00 pull requests•Updated Apr 26, 2022Apr 26, 2022

• scorep_plugin_ucx

  Public
  Score-P Plugin for UCX

  C

  •

  BSD 3-Clause "New" or "Revised" License

  •22 forks•11 star•00 issues•00 pull requests•Updated Oct 5, 2021Oct 5, 2021

• ucx-two-chains

  Public
  OpenSNAPI Arm team

  C

  •

  Other

  •00 forks•55 stars•00 issues•00 pull requests•Updated Aug 11, 2021Aug 11, 2021

• torch-ucc

  Public archive
  pytorch ucc plugin

  C++

  •

  BSD 3-Clause "New" or "Revised" License

  •1414 forks•2323 stars•22 issues•33 pull requests•Updated Jul 8, 2021Jul 8, 2021

• xccl

  Public
  collective

  collective

  C

  •

  Other

  •1414 forks•2626 stars•11 issue•55 pull requests•Updated May 19, 2021May 19, 2021

• ompi

  Public
  Open MPI main development repository

  C

  •

  Other

  •978978 forks•00 stars•00 issues•11 pull request•Updated May 6, 2021May 6, 2021

• xucg

  Public
  Collective library

  C

  •

  BSD 3-Clause "New" or "Revised" License

  •2020 forks•88 stars•00 issues•00 pull requests•Updated Feb 10, 2021Feb 10, 2021

• llvm-project

  Public
  This is a fork of LLVM project, with tuning for clang format tool to match UCX code style

  C++

  •18k18k forks•11 star•00 issues•00 pull requests•Updated Jan 12, 2021Jan 12, 2021

• shmem-opensnapi

  Public
  OpenSHMEM extension for persistant storage and SmartNICs

  C

  •

  Other

  •00 forks•66 stars•00 issues•00 pull requests•Updated Aug 28, 2020Aug 28, 2020

• ucc_spec

  Public
  Unified Communication Collectives Specification

  00 forks•22 stars•00 issues•00 pull requests•Updated Jul 26, 2020Jul 26, 2020

• ucx-protobuf

  Public
  BSD 3-Clause "New" or "Revised" License

  •11 fork•44 stars•00 issues•22 pull requests•Updated Oct 31, 2017Oct 31, 2017