دراسة أثر المرحلة الإضافية على الموثوقية والكلفة الفعالة لشبكة الفراشة

Abstract

Developing the reliability of parallel interconnection network is an aspect of improving the performance of parallel computers. The reliability of these network is evaluated through various time-related and time-independent criteria. One common method for assessing the reliability of these systems is relying on mathematical equations resulting from reliability block diagram 'RBD' for each type of interconnection network.

An important and common method for improving the reliability of interconnection networks is to use added interconnection stages and then measure the amount of improvement in reliability relative to the added cost resulting from adding stages through the cost-effectiveness criterion

This research aims to study time-independent and time-dependent reliability schemes for the butterfly network and measure the impact of reliability resulting from stage redundancy on its interconnection scheme through broadcast reliability, terminal reliability, Mean Time to Failure (MTTF) and effective cost (CE), It is shown that when a stage is added to the butterfly network, the reliability of the network decreases as well as the effective cost.

The analysis of reliability charts and drawing of graphic curves was based on the Desmose 3D program, which allows drawing equations, plotting graphic points, and analyzing functions.