公开(公告)号：US10684946B2

公开(公告)日：2020-06-16

申请号：US16070735

申请日：2016-08-09

Applicant: Institute of Computing Technology, Chinese Academy of Sciences

Inventor： Qi Guo ,  Tianshi Chen ,  Yunji Chen

IPC: G06F12/02 ,  G06F12/12 ,  G06F12/06 ,  G06F12/123

Abstract: A method may include: partitioning data on an on-chip and/or an off-chip storage medium into different data blocks according to a pre-determined data partitioning principle, wherein data with a reuse distance less than a pre-determined distance threshold value is partitioned into the same data block; and a data indexing step for successively loading different data blocks to at least one on-chip processing unit according a pre-determined ordinal relation of a replacement policy, wherein the repeated data in a loaded data block being subjected to on-chip repetitive addressing. Data with a reuse distance less than a pre-determined distance threshold value is partitioned into the same data block, and the data partitioned into the same data block can be loaded on a chip once for storage, and is then used as many times as possible, so that the access is more efficient.

公开(公告)号：US10379816B2

公开(公告)日：2019-08-13

申请号：US15773973

申请日：2016-06-17

Applicant: Institute of Computing Technology, Chinese Academy of Sciences

Inventor： Zhen Li ,  Shaoli Liu ,  Shijin Zhang ,  Tao Luo ,  Cheng Qian ,  Yunji Chen ,  Tianshi Chen

IPC: G06F7/509 ,  G06F16/22 ,  G06F7/50

Abstract: The present disclosure provides a data accumulation device and method, and a digital signal processing device. The device comprises: an accumulation tree module for accumulating input data in the form of a binary tree structure and outputting accumulated result data; a register module including a plurality of groups of registers and used for registering intermediate data generated by the accumulation tree module during an accumulation process and the accumulated result data; and a control circuit for generating a data gating signal to control the accumulation tree module to filter the input data not required to be accumulated, and generating a flag signal to perform the following control: selecting a result obtained after adding one or more of intermediate data stored in the register to the accumulated result as output data, or directly selecting the accumulated result as output data. Thus, a plurality of groups of input data can be rapidly accumulated to a group of sums in a clock cycle. At the same time, the accumulation device can flexibly select to simultaneously accumulate some data of the plurality of input data by means of a control signal.

公开(公告)号：US20190026246A1

公开(公告)日：2019-01-24

申请号：US16071458

申请日：2016-08-09

Applicant: Institute of Computing Technology, Chinese Academy of Sciences

Inventor： Tianshi Chen ,  Zidong Du ,  Qi Guo ,  Yunji Chen

IPC: G06F15/78 ,  G06F3/06

Abstract: The present invention is directed to the storage technical field and discloses an on-chip data partitioning read-write method, the method comprises: a data partitioning step for storing on-chip data in different areas, and storing the on-chip data in an on-chip storage medium and an off-chip storage medium respectively, based on a data partitioning strategy; a pre-operation step for performing an operational processing of an on-chip address index of the on-chip storage data in advance when implementing data splicing; and a data splicing step, for splicing the on-chip storage data and the off-chip input data to obtain a representation of the original data based on a data splicing strategy. Also provided are a corresponding on-chip data partitioning read-write system and device. Thus, read and write of repeated data can be efficiently realized, reducing memory access bandwidth requirements while providing good flexibility, thus reducing on-chip storage overhead.