公开(公告)号：GB2618232A

公开(公告)日：2023-11-01

申请号：GB202310291

申请日：2021-10-25

Applicant: IBM

Inventor： MALTE JOHANNES RASCH ,  TAYFUN GOKMEN ,  SEYOUNG KIM

IPC: G11C13/00

Abstract: A device which comprises an array of resistive processing unit (RPU) cells, first control lines extending in a first direction across the array of RPU cells, and second control lines extending in a second direction across the array of RPU cells. Peripheral circuitry comprising readout circuitry is coupled to the first and second control lines. A control system generates control signals to control the peripheral circuitry to perform a first operation and a second operation on the array of RPU cells. The control signals include a first configuration control signal to configure the readout circuitry to have a first hardware configuration when the first operation is performed on the array of RPU cells, and a second configuration control signal to configure the readout circuitry to have a second hardware configuration, which is different from the first hardware configuration, when the second operation is performed on the array of RPU cells.

公开(公告)号：GB2597232A

公开(公告)日：2022-01-19

申请号：GB202116922

申请日：2020-04-09

Applicant: IBM

Inventor： MALTE JOHANNES RASCH ,  TAYFUN GOKMEN

IPC: G06N3/063 ,  G06N3/08

Abstract: Advanced noise and signal management techniques for RPU arrays during ANN training are provided. In one aspect of the invention, a method for ANN training includes: providing an array of RPU devices with pre-normalizers and post-normalizers; computing and pre-normalizing a mean and standard deviation of all elements of an input vector x to the array that belong to the set group of each of the pre-normalizers; and computing and post-normalizing the mean μ and the standard deviation σ of all elements of an output vector y that belong to the set group of each of the post-normalizers.