基于一階泰勒級(jí)數(shù)查表法單精度倒數(shù)的設(shè)計(jì)與實(shí)現(xiàn)
[Abstract]:Based on the analysis of the shortcomings of single-precision reciprocal algorithm in GPU, the one-order Taylor series single-precision reciprocal algorithm is designed. Compared with the traditional algorithm, the resource consumption, operation cycle and efficiency are improved effectively. The main logic module of the floating-point reciprocal algorithm consists of a 24-bit integer adder, a ROM and a 24-bit multiplier. The average Mantissa in the range of [1] is divided into 4 096 intervals, the reciprocal square of the starting point of each interval is put into the lookup table, and the inverse value of each interval is calculated by the first order Taylor series. The simulation results show that the simulation results are consistent with the theoretical results and meet the precision requirements of single precision floating-point points. The algorithm has been successfully used in the third generation graphics processor (JM7200.).
【作者單位】: 湖南大學(xué)物理與微電子科學(xué)學(xué)院;湖南城市學(xué)院市政與測(cè)繪工程學(xué)院;
【分類號(hào)】:TP332
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