I chose openmosix - a linux kernel extension designed for single - system image clustering - because it provides the ability for the os the linux kernel , in our case to launch an application from any cluster node into memory and execute on any node in the cluster 我选择了openmosix一个设计用于单一系统映像集群的linux内核扩展因为它允许操作系统(在我们的例子中是linux内核)从任何集群节点将应用程序加载到内存并在集群的任何节点上去运行。
Through division management model , the management of system includes cluster management and node group management , and the system supports site autonomy , heterogeneous substrate , node extensibility and transparence . we research the implementation of single system image in grid , and put forward the implementation method 该系统首次使用了分割管理模型,采用集群管理和结点组管理,支持结点自治性、底层异构性、结点可扩展性和对用户的透明性。
Integrated optomechanical analysis devides rigid - body and aberration , then computes the pv and rms . it provides guidance for design , tolerances allocation and alignment of optomechanical system . finally , abberations are converted to a sort of data form that can be imported by corresponding optical design software to observe their impact upon the optomechanical system imaging performance 光机集成有限元分析方法就是通过分离三种形式的刚体位移和光学表面畸变的pv值和rms值,指导光机系统的设计、误差分配和装调,并将数据转换成光学分析软件codev可接收的数据形式,对光机系统做整体成像性能评价。
In addition to bypassing the complexity of building a kernel to emulate and a file system image to boot into , and configuring a virtual network device for io , this shortcut also speeds up emulation , as the reams of kernel instructions that would have run to handle the system call - from the exception handler through the vfs and the device driver - are bypassed 除了绕开构建一个用于仿真的内核和一个用于启动到其中的文件系统镜像,以及为io配置虚拟网络设备的复杂性之外,这条捷径还加快了仿真的速度,因为绕开了从异常处理程序到vfs再到设备驱动程序的很多内核指令,而这些内核指令本来就是用来处理系统调用的。
Scenario 2 expands the virtualization concept by showing that the r d company also stores data in data source systems such as relational dbms , flat files such as xml , databases containing e - mails and documents , and content management systems images , drawings , or documents 通过展示r & d公司仍将数据存储在数据源系统中,场景2扩展了虚拟化的概念,这些数据源系统包括关系型dbms 、平面文件(如xml ) 、包含电子邮件和文档的数据库,以及内容管理系统(包括图像、绘画、文档等)等。
A system image in computing is a copy of the entire state of a computer system stored in some non-volatile form such as a file. A system is said to be capable of using system images if it can be shut down and later restored to exactly the same state.