In most cases modern distributed computer systems (computer clusters and MPP systems) have hierarchical organization and non-uniform communication channels between elementary machines (computer nodes, processors or processor cores). Execution time of parallel programs significantly depends on how they map to computer system (on what elementary machines parallel processes are assigned and what c...

A distributed system is one in which the failure of a computer you didn't even know existed can render your own computer unusable. A distributed system is a computing system in which a number of components cooperate by communicating over a network. The explosive growth of the Internet and the World Wide Web in the mid-1990's moved distributed systems beyond their traditional application areas, ...

We consider optimal distributed decisions in distributed computer systems. We identify a Braess-like paradox in which adding capacity to the system may degrade the performance of all users. Unlike the original Braess paradox, we show that this behavior occurs only in the case of finitely many users and not in the case of infinite number of users. keywords Braess paradox, Nash equilibrium, Wardr...

residue number system (rns) is a non-weighted number system for integer number arithmetic, which is based on the residues of a number to a certain set of numbers called module set. the main characteristics and advantage of residue number system is reducing carry propagation in calculations. the elimination of carry propagation leads to the possibility of maximizing parallel processing and reduc...

'Ihe computing world is undergoing a transformation from centralized to distributed computer systems. At the same time, software maintenance has been identified repeatedly as the largest single system life cycle cost. This paper focuses on the issue of whether and to what extent distributed computer operating environments directly afrect software maintenance difficulty (and, by association, sof...

The paper proposes ‘Network-based Humanoid’, that is, a humanoid endowed with its perception capability and intelligence by an external computer system connected with wireless network. The network-based humanoid is composed of a humanoid test-bed, an internal control system and an external computer system. The internal distributed control system is composed of two parts. One is responsible for ...

This paper will present the initial findings of a research into distributed computer rendering. The goal of the research is to create a distributed computer system capable of rendering a 3D model into an MPEG-4 stream. This paper outlines the initial design, software architecture and hardware setup for the system. Distributed computing means designing and implementing programs that run on two o...

In recent years, there has been an upward trend in the number of leaked secrets. Among them, secret-related computers or networks are connected to Internet violation regulations, cross-use mobile storage media, and poor security management intranets, which main reasons for leaks. Therefore, it is great significance study physical isolation protection technology classified information systems. P...