Accelerating device, data storing device, data processing system and operating method of accelerating device

A data processing system comprising:

• a host device configured to determine a calculation method and a method of inputting first input data and second input data to a processing element array based on at least one of a comparison between a batch size and a batch reference value, a comparison between a sequence size and a sequence reference value, or a combination of the comparisons;
• and
• a data storing device configured to control an input path of the first input data and the second input data to the processing element array according to the determined calculation method,
• wherein the calculation method includes a first calculation method and a second calculation method, and the first input data and the second input data are input to the processing element array based on the batch size according to the first calculation method and the first input data being input to the processing element array based on the sequence size according to the second calculation method.

An operating method of an accelerating device, the operating method comprising:

• receiving a batch size corresponding to a size of data concurrently processable and a sequence size corresponding to a length of data sequentially input;
• selecting one between a first calculation method and a second calculation method as a calculation method and selecting a method of inputting first input data and second input data to a processing element array based on at least one of a comparison between the batch size and a batch reference value, a comparison between the sequence size and a sequence reference value, or a combination of the comparisons;
• inputting, upon determination that the calculation method is the first calculation method, the first input data or the second input data corresponding to the batch size, to the processing element array in a first direction;
• inputting, upon determination that the calculation method is the second calculation method, the first input data corresponding to the sequence size, to the processing element array in the first direction;
• and
• performing a calculation process by utilizing the first input data, the second input data and weight values respectively for the first input data and the second input data and then obtaining a state value of a current cell and an output value of the current cell.