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    • 6. 发明授权
    • Method and system for predicting communication delays of detailed application workloads
    • 用于预测详细应用工作负载的通信延迟的方法和系统
    • US06925431B1
    • 2005-08-02
    • US09632522
    • 2000-08-04
    • Efstathios Papaefstathiou
    • Efstathios Papaefstathiou
    • G06F9/44G06F9/45G06F11/34G06F13/10G06F17/50G06G7/62
    • G06F17/5022G06F11/3447G06F2201/86
    • A method and system for generating a communication model are disclosed. The communication model is used to provide performance information on the use of communication networks by application code. The expected utilization of resources is important to when high performance is to be achieved in both cluster computing environments and information power GRIDs.The disclosed method and system is designed to generate a model of an underlying network topology using detailed workload information, which encapsulates the expected computation/communication requirements of an application. Such workload information may be obtained from a number of different sources. Furthermore, the disclosed method provides detailed information of the expected use of a network system unlike traditional communication models that rely on statistical information and provide general performance information.The disclosed method is a hybrid model containing statistical model information as well as steps for simulating the main stages that change the state of the communication network traffic. As such, the evaluation time is orders of magnitude quicker than traditional methods, while providing predictions, which are of reasonable accuracy. The characteristics of different networks can be easily incorporated into the model, and thus the model can be used in a variety of situations. The output of the model is the expected delay of a set of communications, which can be further, expanded into a suitable trace format and visualized for further investigation. In evaluation tests, the disclosed method and system provides predictions which are more accurate than simple regression models while requiring seconds of CPU processing time.
    • 公开了一种生成通信模型的方法和系统。 通信模型用于通过应用程序代码提供关于通信网络使用的性能信息。 资源的预期利用对于在集群计算环境和信息功率GRID中实现高性能而言都是重要的。 所公开的方法和系统被设计为使用详细的工作负载信息来生成底层网络拓扑的模型,其中封装了应用程序的预期计算/通信要求。 这样的工作负载信息可以从许多不同的来源获得。 此外,所公开的方法提供与依赖于统计信息并提供一般性能信息的传统通信模型不同的网络系统的预期使用的详细信息。 所公开的方法是包含统计模型信息的混合模型以及用于模拟改变通信网络业务状态的主要阶段的步骤。 因此,评估时间比传统方法快几个数量级,同时提供合理准确的预测。 不同网络的特点可以很容易地纳入到模型中,因此该模型可以在各种情况下使用。 模型的输出是一组通信的预期延迟,可以进一步扩展到适当的跟踪格式并可视化以供进一步调查。 在评估测试中,所公开的方法和系统提供了比简单回归模型更准确的预测,同时需要几秒的CPU处理时间。
    • 7. 发明授权
    • Illuminated skin robot display
    • 照明皮肤机器人显示
    • US08936366B2
    • 2015-01-20
    • US13162596
    • 2011-06-17
    • Efstathios PapaefstathiouRussell SanchezNathaniel T. Clinton
    • Efstathios PapaefstathiouRussell SanchezNathaniel T. Clinton
    • G03B21/28
    • G03B21/28
    • There is provided a robot that includes a processor executing instructions that determine a desired image to be displayed. The processor issues control signals corresponding to the desired image to be displayed. The robot also comprises a display assembly including a visual projector, a mirror, and a display surface. The visual projector and mirror are disposed within the robot. The visual projector projects light corresponding to the desired image onto the mirror. The mirror receives the light from the projector, and reflects the light onto the display surface. The display surface receives the light. The image is visible on the display surface from outside the robot.
    • 提供了一种机器人,其包括处理器,其执行确定要显示的期望图像的指令。 处理器发出对应于要显示的所需图像的控制信号。 机器人还包括显示组件,其包括视觉投影仪,反射镜和显示表面。 视觉投影仪和镜子设置在机器人内。 视觉投影仪将对应于所需图像的光投影到镜子上。 镜子接收来自投影机的光,并将光反射到显示器表面上。 显示面接收光。 图像在机器人外部的显示表面上可见。
    • 9. 发明申请
    • PROTECTED MODE SCHEDULING OF OPERATIONS
    • 保护模式调度运行
    • US20090328058A1
    • 2009-12-31
    • US12163726
    • 2008-06-27
    • Efstathios PapaefstathiouJinsong YuStanislav A. Oks
    • Efstathios PapaefstathiouJinsong YuStanislav A. Oks
    • G06F9/46
    • G06F9/485G06F9/4881G06F9/545
    • The present invention extends to methods, systems, and computer program products for protected mode scheduling of operations. Protected mode (e.g., user mode) scheduling can facilitate the development of programming frameworks that better reflect the requirements of the workloads through the use of workload-specific execution abstractions. In addition, the ability to define scheduling policies tuned to the characteristics of the hardware resources available and the workload requirements has the potential of better system scaling characteristics. Further, protected mode scheduling decentralizes the scheduling responsibility by moving significant portions of scheduling functionality from supervisor mode (e.g., kernel mode) to an application.
    • 本发明扩展到用于操作的保护模式调度的方法,系统和计算机程序产品。 保护模式(例如,用户模式)调度可以通过使用特定于工作负荷的执行抽象来促进开发更好地反映工作负载需求的编程框架。 此外,根据可用硬件资源的特性和工作负载要求调整调度策略的能力具有更好的系统缩放特性的潜力。 此外,受保护模式调度通过将调度功能的重要部分从管理器模式(例如,内核模式)移动到应用来分散调度责任。