OpenFabrics Interfaces Support and GPU Integration in MPICH

Learn about the integration of OpenFabrics Interfaces (OFI) in MPICH through this 22-minute conference talk presented by Yanfei Guo from Argonne National Laboratory. Explore the major CH4 redesign effort undertaken to enhance MPICH's support for high-level network APIs, particularly OFI. Discover the advantages gained from this architectural transformation and examine ongoing developments in API utilization and underlying functionality. Gain specific insights into MPICH's implementation of Libfabric for GPU support and recent developments in GPU fallback path within Libfabric.