构建实用的PC机群系统以获得廉价的高性能并行计算机,是近几年研究的热点问题,PC机群系统具有能用性、可用性、可扩展性、性能/成本比等较好的优点,其关键技术有4个,即可用性支持、单一系统映象、作业管理、高效的通信,它们是目前活跃的研究开发领域.
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