Atlas 200T A2 Box16/Atlas 200I A2 Box16 Heterogeneous Subrack

Ascend AI Processors of the Atlas 200T A2 Box16 heterogeneous subrack/Atlas 200I A2 Box16 heterogeneous subrack are high-performance AI processors developed by Huawei. These processors are internally connected in HCCS mode. Each Atlas 200T A2 Box16 heterogeneous subrack/Atlas 200I A2 Box16 heterogeneous subrack has 16 Ascend AI Processors in two HCCS rings, with each HCCS having eight Ascend AI Processors. Processors within the same HCCS ring can exchange data, but those in different HCCS rings cannot interact with each other. That is, Ascend AI Processors (less than or equal to 8) allocated to a job must be within the same HCCS ring; otherwise, the job fails to be executed. Figure 1 shows the interconnection topology of the Atlas 200T A2 Box16 heterogeneous subrack/Atlas 200I A2 Box16 heterogeneous subrack.

Figure 1 Interconnection topology