CSR-AES: Mobile Applications in Computational Grids

网格计算为开发新的应用类别创造了机会。两类此类应用程序是在计算资源之间移动以利用计算资源的应用程序，以及在服务器之间迁移以实现对硬件故障的弹性的应用程序。这两个实例都是计算网格中的移动应用程序。要实现完全的移动性，应用程序必须能够将其状态从一个平台转移到另一个平台，该平台可能具有不同的处理器架构(处理器独立性)和不同数量的处理器(平台独立性)。该项目将使用编译器技术和运行时系统的组合来解决这个问题。建议的解决方案基于应用程序级检查点，这是一种对应用程序进行检测的方法，因此它可以保存和恢复自己的状态，而不需要操作系统或体系结构的任何帮助。为了达到机制透明化的目标，本文提出的方法利用编译器技术自动插装代码。将与匹兹堡超级计算中心(PSC)联合对所产生的系统进行实验评估。建议的系统将使许多现有的并行代码能够快速和安全地转换为移动应用程序。

Grid computing has created the opportunity for developing new classes of applications. Two such classes are applications that move between computing resources to exploit computational resources, and applications that migrate between servers to achieve resilience to hardware faults. Both of these are instances of mobile applications in computational grids. To achieve full mobility, applications must be able to move their state from one platform to another one that may have a different processor architecture (processorindependence) and a different number of processors (platform-independence). The project will solve this problem using a combination of compiler technology and runtime systems. The proposed solution is based on application-level checkpointing, an approach in which an application is instrumented so that it can save and restore its own state without any assistance from the operating system or architecture. To achieve the goal of mechanism transparency, the proposed approaches employ compiler technology to automatically instrument codes in this way. Experimental evaluation of the resulting system will be carried out jointly with the Pittsburgh Supercomputing Center (PSC). The proposed system will enable many existing parallel codes to be quickly and safely transformed into mobile applications.