Multiprocessor system and full interconnection method thereof

The invention provides a multiprocessor system and a full interconnection method of the multiprocessor system. The multiprocessor system comprises two or more minimum logical units, the two sides of each minimum logical unit are each connected with a coprocessor corresponding to the minimum logical unit, each minimum logical unit comprises at least one calculation module, each calculation module comprises two interconnected central processing units (CPUs), each calculation module is connected with the corresponding coprocessors on the two sides of the minimum logical unit where each calculation module is located, the coprocessors located on the same side of the minimum logical units are connected, and accordingly the CPUs in any two minimum logical units are connected. According to the scheme, the CPUs in any two minimum logical units are connected by connecting the coprocessors located on the same side of the minimum logical units, so that the hop frequency between the CPUs in any two minimum logical units is lowered, and the communication efficiency of the CPUs is improved.