Virtual Processor: Extension of Formal Languages Application
by
Vladimir P. Rukovchuk
Saint Petersburg State Aerospace Instrumentation University
Coauthors: Alexander S. Slusarenko (Saint Petersburg State Aerospace Instrumentation University)

The virtual processor (VP) is meant a programmed construction capable of providing the adequacy between the processed data mathematical model and its programmed prototype. The processor implementation is based on use of the so called A-type technology which is the new approach to the construction of automated computer systems and information complexes. Its accomplishment is equivalent to the synthesis of an information computational medium (ICM) for adaptive computing processes.

The VP is primarily a linguistic processor based on the extensions of formal programming languages, and is designed to adaptively change the IMC structure and parameters in order to compliantly match the characteristics of input varying data. To execute these functions continuous analysis and testing of the current process state is being held, as well as prediction of its future behavior is carried out. Thus, it eliminates a priori uncertainty stipulated by the objective properties intrinsic to the initial data. As the result of analysis VP determines the required word length, optimal route of computing, results stability, speed and convergence of algorithm, etc. All these parameters define the contents and structure of VP, and IMC in whole.

The core features imply that it takes account of the data information characteristics, represented in appropriately generated semantic tables, and controls the IMC parameters.

The VP was realized in scientific research automated system. The results gained during solution of several modeling problems approved effectiveness as of the VP, so of the A-type technology.

Date received: January 12, 2000