Add GPU-aware MPI build support with XPMEM, UCX, UCC, and ROCm OpenMPI#2140
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gregrodgers merged 1 commit intoaomp-devfrom Apr 16, 2026
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Add GPU-aware MPI build support with XPMEM, UCX, UCC, and ROCm OpenMPI#2140gregrodgers merged 1 commit intoaomp-devfrom
gregrodgers merged 1 commit intoaomp-devfrom
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ROCm's GPU-aware MPI stack components: - XPMEM: - library for cross-process memory access - version: 2.7.4 - source: https://github.com/openucx/xpmem - UCX: - Communication framework for high-bandwidth, low-latency communication - version: 1.20.0 - source: https://github.com/openucx/ucx - dependencies: - XPMEM - ROCm - UCC: - Collective communication library for high-performance communication - version: 1.6.0 - source: https://github.com/openucx/ucc - dependencies: - UCX - ROCm - OpenMPI build with ROCm support: - version: 5.0.9 - dependencies: - UCX - UCC - ROCm Installation: - Install GPU-aware ROCm OpenMPI with all dependencies: - ./build_supp.sh rocmopenmpi - Install XPMEM - ./build_supp.sh xpmem - Install UCX: - ./build_supp.sh ucx - Install UCC: - ./build_supp.sh ucc Default MCA parameters in $AOMP_SUPP/rocmopenmpi/etc/openmpi-mca-params.conf: pml = ucx osc = ucx coll_ucc_enable = 1 coll_ucc_priority = 100
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looks good, lets merge
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#2140) ROCm's GPU-aware MPI stack components: - XPMEM: - library for cross-process memory access - version: 2.7.4 - source: https://github.com/openucx/xpmem - UCX: - Communication framework for high-bandwidth, low-latency communication - version: 1.20.0 - source: https://github.com/openucx/ucx - dependencies: - XPMEM - ROCm - UCC: - Collective communication library for high-performance communication - version: 1.6.0 - source: https://github.com/openucx/ucc - dependencies: - UCX - ROCm - OpenMPI build with ROCm support: - version: 5.0.9 - dependencies: - UCX - UCC - ROCm Installation: - Install GPU-aware ROCm OpenMPI with all dependencies: - ./build_supp.sh rocmopenmpi - Install XPMEM - ./build_supp.sh xpmem - Install UCX: - ./build_supp.sh ucx - Install UCC: - ./build_supp.sh ucc Default MCA parameters in $AOMP_SUPP/rocmopenmpi/etc/openmpi-mca-params.conf: pml = ucx osc = ucx coll_ucc_enable = 1 coll_ucc_priority = 100
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Motivation
Add support for installing GPU-aware OpenMPI with ROCm
Technical Details
ROCm's GPU-aware MPI stack components:
Installation:
./build_supp.sh rocmopenmpi./build_supp.sh xpmem./build_supp.sh ucx./build_supp.sh uccDefault MCA parameters in $AOMP_SUPP/rocmopenmpi/etc/openmpi-mca-params.conf:
Test Plan
Test Result
Submission Checklist