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UCC

UCC (Unified Collective Communication) is a collective communication operations API and library that is flexible, complete, and feature-rich for current and emerging programming models and runtimes.

homepage: https://www.openucx.org/

Available installations

UCC version Supported CPU targets Supported GPU targets EESSI version Module
1.1.0 generic: aarch64, x86_64
Arm: a64fx, neoverse_n1, neoverse_v1, nvidia/grace
AMD: zen2, zen3, zen4
Intel: haswell, skylake_avx512, sapphirerapids, icelake, cascadelake
(none) 2023.06 UCC/1.1.0-GCCcore-12.2.0
1.2.0 generic: aarch64, x86_64
Arm: a64fx, neoverse_n1, neoverse_v1, nvidia/grace
AMD: zen2, zen3, zen4
Intel: haswell, skylake_avx512, sapphirerapids, icelake, cascadelake
(none) 2023.06 UCC/1.2.0-GCCcore-12.3.0
1.2.0 generic: aarch64, x86_64
Arm: a64fx, neoverse_n1, neoverse_v1, nvidia/grace
AMD: zen2, zen3, zen4
Intel: haswell, skylake_avx512, sapphirerapids, icelake, cascadelake
(none) 2023.06 UCC/1.2.0-GCCcore-13.2.0
1.3.0 generic: aarch64, x86_64
Arm: a64fx, neoverse_n1, neoverse_v1, nvidia/grace
AMD: zen2, zen3, zen4
Intel: haswell, skylake_avx512, sapphirerapids, icelake, cascadelake
(none) 2025.06 UCC/1.3.0-GCCcore-13.3.0
1.3.0 generic: aarch64, x86_64
Arm: a64fx, neoverse_n1, neoverse_v1, nvidia/grace
AMD: zen2, zen3, zen4
Intel: haswell, skylake_avx512, sapphirerapids, icelake, cascadelake
(none) 2025.06 UCC/1.3.0-GCCcore-14.2.0
1.4.4 generic: aarch64, x86_64
Arm: a64fx, neoverse_n1, neoverse_v1, nvidia/grace
AMD: zen2, zen3, zen4
Intel: haswell, skylake_avx512, sapphirerapids, icelake, cascadelake
(none) 2025.06 UCC/1.4.4-GCCcore-14.3.0