Chernysh O. The method of choice of class of architecture software on the basis of the analysis of hierarchies

In dissertational work the new technique which consists in increase of accuracy comparative estimation local and global priorities behind characteristics of computing tasks which change in wide borders is developed and proved. The given technique allows carrying out a rational choice of a corresponding class of architecture of the software and can form a basis for regulation of loading on separate computing systems and devices. The modified method of the analysis of hierarchies is developed for a choice of architecture of the software. The first stage of work is leading initial matrix to Hessenberg top almost triangle form, the second - calculation of eigenvalues with using QR-algorithm with shift and correction of intermediate results. Sensitivity function of the modified method which has shown that calculations of eigenvalues by means of QR-algorithm with shift are more effective was researched.