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Service control with the preemptive parallel job scheduler Scojo-PECT

机译：通过抢占式并行作业调度程序Scojo-PECT进行服务控制

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摘要

User satisfaction and scheduling on grids makes predictability of response times and quality-of-service highly desirable. However, existing approaches for response-time prediction still show significant prediction errors, mostly due to problems in dynamic arrival of jobs with potentially higher priority and hard-to-anticipate packing and backfilling effects. The same problems imply that quality-of-service cannot be solved with standard approaches from communication systems. Thus, this paper presents a scheduling approach which provides a more suitable framework for service guarantees and predictability. The approach is based on coarse-grain preemption, combined with an innovative separation of job classes. Resource shares can be determined as necessary to meet target service levels. A further extension permits limited dynamic resource allocation to adapt to variations in machine load and job mixes. The feasibility of service control is demonstrated with various workloads.
机译：用户的满意程度和网格上的调度使得响应时间和服务质量的可预测性非常可取。但是，现有的响应时间预测方法仍然显示出显着的预测误差，这主要是由于作业的动态到达存在潜在的更高优先级以及难以预料的打包和回填效果。同样的问题意味着服务质量不能用通信系统的标准方法来解决。因此，本文提出了一种调度方法，该方法为服务保证和可预测性提供了更合适的框架。该方法基于粗粒度抢占，并结合了创新的工作类别分离。可以根据需要确定资源份额，以达到目标服务水平。进一步的扩展允许有限的动态资源分配以适应机器负载和作业混合的变化。服务控制的可行性在各种工作负载中得到了证明。

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