Processing elements array that includes delay queues between processing elements to hold shared data
A processing element architecture adapted to a convolution comprises a plurality of processing elements and a delayed queue circuit. The plurality of processing elements includes a first processing element and a second processing element, wherein the first processing element and the second processing element perform the convolution according to a shared datum at least. The delayed queue circuit connects to the first processing element and connects to the second processing element. The delayed queue circuit receives the shared datum sent by the first processing element, and sends the shared datum to the second processing element after receiving the shared datum and waiting for a time interval.
1. A processing element cluster adapted to a convolution comprising:
a first processing element set comprising a plurality of first processing elements;
a second processing element set comprising a plurality of second processing elements;
a bus connecting to the first processing element set and the second processing element set, the bus provides a plurality of shared data to each of the plurality of first processing elements; and
a plurality of delayed queue circuits, wherein one of the plurality of delayed queue circuits connects to one of the plurality of first processing elements and connects to one of the plurality of second processing elements; another one of the plurality of delayed queue circuits connects to two of the plurality of second processing elements, and each of the plurality of delayed queue circuits sends one of the plurality of shared data; wherein
each of the plurality of first processing elements of the first processing element set comprises a storage device storing said one of the plurality of shared data; and
each of the plurality of second processing elements of the second processing element set does not comprises the storage device storing said one of the plurality of shared data.
2. The processing element cluster of claim 1 , wherein the storage device is a first storage device, and each of the plurality of first processing elements and the plurality of second processing elements further comprises:
a second storage device storing a private datum; and
a computing circuit electrically connecting to the first storage device and the second storage device, wherein the computing circuit performs the convolution according to said one of the plurality of shared data and the private datum.
3. The processing element cluster of claim 1 , wherein
the first processing element set and the second processing element set form a two-dimensional array with M rows and N columns, each of the M rows has one of the plurality of first processing elements and (N−1) of the plurality of second processing elements; and
the plurality of delayed queue circuits is divided into M sets and each of the M sets has (N−1) delayed queue circuits.