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A grid middleware for distributed Java computing with MPI binding and process migration supports 总被引:1,自引:0,他引:1 下载免费PDF全文
“Grid” computing has emerged as an important new research field. With years of efforts, grid researchers have successfully developed grid technologies including security solutions,resource management protocols, information query protocols, and data management services. How-ever, as the ultimate goal of grid computing is to design an infrastructure which supports dynarnic,cross-organizational resource sharing, there is a need of solutions for efficient and transparent task re-scheduling in the grid. In this research, a new grid middleware is proposed, called G-JavaMPI. This middleware adds the parallel computing capability of Java to the grid with the support of a Grid-enabled message passing interface (MPI) for inter-process communication between Java processes executed at dif-ferent grid points. A special feature of the proposed G-JavaMPI is the support of Java process migration with post-migration message redirection. With these supports, it is possible to migrate executing Java process from site to site for continuous computation, if some site is scheduled to be turned down for system reconfiguration. Moreover, the proposed G-JavaMPI middleware is very portable since it requires no modification of underlying OS, Java virtual machine, and MPI package. Preliminary performance tests have been conducted. The proposed mechanisms have shown good migration efficiency in a simulated grid environment. 相似文献
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文章介绍在 Linux操作系统网络环境下,负载共享系统的基本设计原理和实现方法。重点描述客户一服务器通信模式以及程序模块的算法框架。 相似文献
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本文为在Linux操作系统网络环境中实现进程迁移,簌 Linux中增加功能的方法,内在管理模式以及实现进程迁移的机制。 相似文献
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服务网格中的事务服务及基于Petri网的正确性分析 总被引:5,自引:2,他引:5
面向服务的架构(SOA)推动着网格技术从科学计算走向商业领域,大部分商业应用需要事务的支持.该文提出了服务网格环境下用于事务管理的网格事务服务,它能够动态地发现执行子事务的网格服务;根据事务类型调用原子事务或聚合事务协调算法以保证这些服务在行动上实现期望的一致性.通过Petri网分析技术,将两种协调算法模型化为Petri网并验证了它们的正确性.网格事务服务可以提供较强的事务管理能力并将复杂的处理过程对用户透明,为网格技术的商业化提供了有效的支持. 相似文献
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