Abstract: An efficient parallel direct integration algorithm is presented. Computational results for a model in YH-1 computer show that for the model of degree of freedom of 1666, the speed of the parallel algorithm is 30 times faster than of traditional serial algorithm, and if the features of YH-1 computer considered and the assemble language used, it is 50 times faster in the same model case.

Key words: parallel algorithms, parallel direct integration algorithm