Real-Time Communication Scheduling in a Multicomputer Video Server

Real-Time Communication Scheduling in a Multicomputer Video Server

In this paper, we address the problem of scheduling communication over the interconnection network of a distributed-memory multicomputer video server. We show that this problem is closely related to the problem of data distribution and movie scheduling in such a system. A solution is proposed in this paper that addresses these three issues at once. The movies are distributed evenly over all nod...

Performance evaluation of real-time scheduling on a multicomputer architecture

The complexity of some real-time applications demands high performance computer architectures. Multicomputer architectures have a potential for high performance and reliability because of their expressive number of processors and communication channels. Therefore, they are natural candidates for supporting complex real-time computing. This paper presents a performance evaluation of real-time sc...

Performance Evaluation of Soft Real-Time Scheduling for Multicomputer Cluster

We consider scheduling soft real-time tasks for a cluster which consists of multiple servers. Each server provides identiccal services where an incoming task can be assigned to one of the servers. The question we investigate is which assignment produces the best performance given two alternattive approaches to queue the arriving tasks: a centralized approach or a distributed one. A missed deadl...

Practical real-time approaches for scheduling VBR video in a client-server computing environment

A Soft Real Time Scheduling Server in UNIX Operating System

We present a soft real-time CPU server for Continuous Media processing in the UNIX environment. The server is a daemon process from which applications can request and acquire soft real-time QoS (Quality of Service) Guarantees. Our server is an extension of the URsched scheduler. It provides (1) protection among real-time(RT) processes (2) fairness among RT and non-RT processes, (3) rate monoton...