ALGORITHMS FOR THE COMPUTATION OF MOLECULAR DISTANCE MATRIX AND DISTANCE POLYNOMIAL OF CHEMICAL GRAPHS ON PARALLEL COMPUTERS

被引:2
|
作者
THANGAVEL, P
VENUVANALINGAM, P
机构
[1] BHARATHIDASAN UNIV, DEPT CHEM, Tiruchirappalli 620024, INDIA
[2] BHARATHIDASAN UNIV, DEPT MATH, Tiruchirappalli 620024, INDIA
关键词
D O I
10.1021/ci00013a018
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A parallel algorithm adaptable to supercomputers is developed, based on the modified matrix multiplication scheme, to construct the molecular distance matrix from the simple connectivity matrix of chemical graphs. This algorithm is combined with our earlier algorithm5 for the computation of distance polynomials of chemical graphs. The present algorithm can also handle weighted and directed graphs. Our algorithm for the construction of distance matrix takes only 0(log2 n) time in the CRCW PRAM model with 0(n3) processors. The algorithm for the computation of distance polynomial will take only linear time in the same configuration.
引用
收藏
页码:412 / 414
页数:3
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