Rimmer_PERFORMANCE SCALED MESSAGING V3 (PSM 3) ARCHITECTURE OVERVIEW.pdf
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PERFORMANCE SCALED MESSAGING V3 (PSM 3)
ARCHITECTURE OVERVIEW
Todd Rimmer, Director Software Architecture
Intel Corp
2021 OFA Virtual Workshop
WHAT IS PSM3?
2 © OpenFabrics Alliance
▪ PSM3 is a new libfabric provider
• Leverages concepts and code from Intel® Omni-Path Architecture (OPA)
• Mature and Feature rich
▪ PSM3 is designed for RoCE
• Optimizes performance and scalability
• Uses standard RoCE protocols and APIs
▪ PSM3 is available upstream now
• Integrated into libfabric
• Out of Tree code for older distros available on github
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