Interconnection method between two subnets in high-performance computing environment

The invention discloses an interconnection method between two subnets in a high-performance computing environment, which comprises the following steps of: S1, establishing a first subnet and a second subnet in the high-performance computing environment, and realizing interconnection between the first subnet and the second subnet through gateway access equipment; s2, a reference node connected to the first subnet sends periodic time information to a periodic master controller of the second subnet at a repetition moment, and the periodic master controller of the second subnet correspondingly adjusts the periodic time of the periodic master controller to realize periodic synchronization between the first subnet and the second subnet; and S3, a subnet processing module is additionally arranged. According to the invention, the interconnection between the first subnet and the second subnet is realized through the gateway access equipment, the information intercommunication between the first subnet and the second su