双精度浮点并行计算将不能满足高性能计算领域对计算精度的要求，但是目前还没有高性能的超双精度并行计算的解决方法。基于并行编程语言MPI，本文提出了扩展双精度浮点的并行计算实现方法，并且使用精度敏感的圆周率计算BBP算法验证了该方法的正确性和性能。

Parallel computing in doubleprecision floatingpoint arithmetic will be out of accord with the requirements of the computing precision in high performance computing in the future. However,there is no solution to parallel computing in super doubleprecision arithmetic with high performance. Based on the wildly used parallel programming language MPI,this paper presents a solution of doubleextended precision parallel computing. The correctness and performance of this solution is validated by a precisionsensitive BBP algorithm which is used for the computation of Pi.