公开(公告)号：US20230195420A1

公开(公告)日：2023-06-22

申请号：US17741509

申请日：2022-05-11

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Hoi Jun YOO ,  Ju Hyoung LEE

IPC: G06F7/544 ,  G06F7/487 ,  G06F7/485 ,  G06F7/499 ,  G06F5/01 ,  G06N3/04

CPC classification number: G06F7/5443 ,  G06F7/4876 ,  G06F7/485 ,  G06F7/49915 ,  G06F5/012 ,  G06N3/04

Abstract: Disclosed herein are a floating-point computation apparatus and method using Computing-in-Memory (CIM). The floating-point computation apparatus performs a multiply-and-accumulation operation on pieces of input neuron data represented in a floating-point format, and includes a data preprocessing unit configured to separate and extract an exponent and a mantissa from each of the pieces of input neuron data, an exponent processing unit configured to perform CIM on input neuron exponents, which are exponents separated and extracted from the input neuron data, and a mantissa processing unit configured to perform a high-speed computation on input neuron mantissas, separated and extracted from the input neuron data, wherein the exponent processing unit determines a mantissa shift size for a mantissa computation and transfers the mantissa shift size to the mantissa processing unit, and the mantissa processing unit normalizes a result of the mantissa computation and transfers a normalization value to the exponent processing unit.