Abstract: Open source communication framework defines standard communication APIs between the parallel programming model and the interconnection network, which provides high performance communication operations independent from the characteristics of interconnection network. Its purpose is to improve the efficiency of developing programming models on new interconnection networks. The performance and scalability of communication frameworks on TH-express interconnection are solved through the design and implementation of new multi-channels data transfer protocols. Performance test shows that open source communication frameworks have low software overhead and provide high performance data transfer very close to the design performance of TH-express interconnection. This provides a good foundation for supporting parallel programming models and distributed computing frameworks efficiently on TH-express interconnection.

Key words: high-speed interconnection network, communication framework, message passing interface (MPI), remote direct memory access (RDMA)