Skhynix Inc.

Postech Academy-industry Foundation

Junki Park

Jae-Joon Kim

Youngjae Jin

Euiseok Kim

A method formats a weight matrix in a current layer included in a neural network. The method includes calculating a row length for each row of the weight matrix based on a number of elements each of which has non-zero value; storing rearrangement information including result of sorting rows in the order of row lengths; performing a row transformation or the row transformation and a column transformation on the weight matrix using the rearrangement information; distributing rows of a transformed weight matrix to a plurality of processing elements (PEs); and generating formatted data including one or more group data each including values and column information being processed in each of the PEs.

Method for formatting a weight matrix, accelerator using the formatted weight matrix, and system including the accelerator

A method for formatting a weight matrix including a plurality of sub matrices each being multiplied with an input vector may include sequentially adding weight information included in respective first columns of the plurality of sub matrices to formatted data; and sequentially adding weight information included in respective second columns of the plurality of sub matrices to the formatted data after the weight information from the first columns of the plurality of sub matrices. The weight information may be non-zero weight information.

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Pohang, South Korea

Junki Park