Neural network unit with output buffer feedback and masking capability with processing unit groups that operate as recurrent neural network lstm cells

摘要: An output buffer holds N words arranged as N/J mutually exclusive word groups (OBWG) of J each. processing units (PU) are PU each having an associated OBWG. Each has accumulator, arithmetic unit, and first second multiplexed registers at least J+1 inputs. A input receives a memory operand the other inputs receive accumulator provides its to respective unit performs operation on register outputs generate result for accumulation into accumulator. mask controls which words, if any, retain their current value or updated with output. group operates recurrent neural network LSTM cell.