Intel® Omni-Path Architecture—A Next-Generation HPC Fabric

Even though it's a new generation fabric, Intel OPA is still backwards compatible with the many applications in the HPC community that were written using the OpenFabrics Alliance* software stack for InfiniBand. So, existing InfiniBand users will be able to run their codes that are based on the OpenFabrics Enterprise Distribution (OFED) software on Intel OPA. Additionally, Intel has open sourced the key software elements of their fabric to allow integration of Intel OPA into the OFED stack, which several Linux* distributions include in their packages.

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