Data computing system

An accelerator comprising:

• a control register module communicatively coupled to an external processor and configured to receive control information from the external processor, wherein the control information comprises a start address for data to be computed, a number of operands, a computing type, a write-back address for a computed result, and a computing enable flag;
• and
• a computing module communicatively coupled to an external memory associated with the external processor and configured to, after detecting that the computing enable flag is enabled:
• read the data from the external memory according to the start address and the number of operands;
• implement a computing process according to the computing type that produces the computed result;
• and
• write the computed result back to the external memory according to the write-back address;
• and
• reset the computing enable flag after the computing process is completed;
• wherein the computing module comprises:
• a multiply-accumulate unit configured to perform multiply-accumulate operations to generate a result;
• a rectifier computing unit configured to perform rectifier functions for an input data or the result from the multiply-accumulate unit;
• and
• a first multiplexer configured to select the result from the multiply-accumulate unit or the input data as the data input to the rectifier computing unit.

A data computing method performed by an accelerator of a data computing system, the accelerator comprising:

• a control register module communicatively coupled to a processor of the data computing system and configured to store control information that includes an instruction;
• and
• a computing module communicatively coupled to a memory and comprising:
• a multiply-accumulate unit configured to perform multiply-accumulate operations to generate a result;
• a rectifier computing unit configured to perform rectifier functions for an input data or the result from the multiply-accumulate unit;
• and
• a first multiplexer configured to select the result from the multiply-accumulate unit or the input data as the data input to the rectifier computing unit,
• wherein the computing module is configured to perform the method comprising:
• receiving, by the accelerator from the processor, control information including a start address for data to be computed, a number of operands, a computing type, a write-back address, and a computing enable flag, the accelerator being separate from the processor;
• after detecting that the computing enable flag is enabled:
• accessing the memory according to the start address and the number of operands, the accelerator being separate from the memory;
• performing a computing process on the data according to the computing type to produce a computed result, wherein the computing process is performed by the accelerator independently from the processor;
• writing the computed result to the memory according to the write-back address;
• and
• resetting the computing enable flag after the computing process is completed.