分布式计算环境下的资源分配

R. L. Carter, D. St. Louis, E. Andert
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引用次数: 11

摘要

可以预期先进的运输系统将越来越多地采用现代软件开发方法来实现其操作能力。这是向开放架构硬件和软件解决方案的转变所要求的,以满足严格的低成本目标。公共对象请求代理体系结构(CORBA)是一种重要的成熟标准,提供了软件组件之间的互操作性和跨硬件平台的可移植性。虽然CORBA可以提供所需的互操作性和可移植性,但问题是如何以容错的方式管理分布式CORBA客户机和服务器。未来的关键任务和分布式软件部署需要有效的资源分配。需要解决的关键资源分配问题包括组件迁移、调度和跨动态计算资源的负载平衡。需要一个以统一和具有成本效益的方式处理这些问题的管理制度。本文介绍了分布式计算环境下资源优化分配和容错的集成方法。该方法利用现成商品(COTS)资源分配系统,为在异构网络工作站上托管可靠的CORBA应用程序所需的特定资源分配和容错性增强提供基础设施。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Resource allocation in a distributed computing environment
Advanced transportation systems can be expected to increasingly employ modern software development methodologies for the implementation of their operational capabilities. This is demanded by the shift to open architecture hardware and software solutions in order to meet stringent low-cost objectives. The common object request broker architecture (CORBA) is an important maturing standard offering interoperability among software components and portability across hardware platforms. While CORBA can provide needed interoperability and portability, the question arises how to manage distributed CORBA clients and servers in a fault tolerant manner. Future mission critical and distributed software deployments require effective resource allocation. Critical resource allocation issues that need to be addressed include component migration, scheduling, and load balancing across dynamic computational resources. A management system that addresses these issues in a uniform and cost-effective way is needed. This paper describes an integrated approach to optimal resource allocation and fault tolerance in a distributed computing environment. The approach leverages a commodity-off-the-shelf (COTS) resource allocation system to provide the infrastructure for the specific resource allocation and fault tolerance enhancements required to host a reliable CORBA applications on heterogeneous networked workstations.
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