Silicon Photonic-enabled Bandwidth Steering for Resource-Eu000ecient High Performance Computing

摘要

This paper presents the integration of multiple silicon photonic (SiP) switches within a high-performance computing environment to enable network reconfigurability in order to achieve optimized bandwidth utilization. We demonstrate a physical testbed implementation that incorporates two fabricated SiP switches capable of switching traffic under real HPC benchmark workloads. The system uses dynamic optical bandwidth steering to match its physical network topology to the traffic characteristics of the application, and achieves up to approximately 40% reduction in application execution time of the high-performance computing benchmark. We present the detailed design of the network architecture and control plane of the system, and discuss the system performance improvements that arises from bandwidth-steering with silicon photonic-based circuit switching.