Precise exponent and exact softmax computation

摘要

A method for an associative memory device includes dividing a multi-bit mantissa A of a number X to a plurality of smaller partial mantissas Aj, offline calculating a plurality of partial exponents F(Aj) for each possible value of each partial mantissa Aj and storing the plurality of partial exponents F(Aj) in a look up table (LUT) of the associative memory device. A system includes an associative memory array to store a plurality of partial mantissas Ai of a mantissa A of a number X and an exponent calculator to utilize the partial mantissas to compute e in the power of X.