A DATA BASE SYSTEM FOR THE SOYUZ PACKAGE

V. I. Zuev, V. V. Komosko, V. I. Legonkov
VANT. Ser. Metodiki i Programmy Chislennogo Resheniya Zadach Matematicheskoy Fiziki 1988. Вып.3. С. 38-45.

      We outline some principles for constructing and using a data base system which is one of the most important components of the SOYUZ package designed to solve 2-D time-dependent problems in the continuum mechanics. Described are the main components: the combination of 2-D problem data bases and metabases containing base descriptions: data dietionary/directory used for data description and metabase generation; DBMS providing data manipulation and service functions. For problems under consideration, we outline a concept of data base system designed to operate within a nonhomogeneous computer center including several BESM-6, ES EVM and other machines. Implementing this concept relies upon an object-oriented approach ensuring the most natural representation of objects from 2-D problem application domains in terms of structures and operations; making differences between file systems of the nonhomogeneous complex hidden to the user; functionally and structurally distributing DBMS to different computers.

      The SOYUZ package is described which is designed to solve 2-D time-dependent problems in continuum mechanics. One of the main package components is a language system including different languages used for package operation and associated language processors. The purpose of the language system development is to centralize efforts aimed at the creation of integrated and unique (common for each user group) package languages and uniform language processors whiph provides conceptual integrity and consistency for such languages, will eliminate the duplication in language system development for computational experiments and will make all language system improvements commonly available. We justify the necessity for applying a single approach to create the language system and also for centralizing and coordinating these efforts. We outline the capabilities of a unique task processing language ensuring user interaction with any program and a set of language and its processor requirements. Language system development and application will make user/package interaction faster, provided a higher level of automatization for new language processor development, and reduce operation and maintenance cost.