ATLAS数据挑战1生产中的虚拟数据技术原型
Prototyping Virtual Data Technologies in ATLAS Data Challenge 1 Production
摘要：
为了提高分布在世界各地的大型生产任务的效率，提供由可集成和可互操作的服务组成的共享生产管理工具至关重要。为了增强ATLAS DC 1生产工具包，我们引入并测试了一个虚拟数据服务组件。对于ATLAS数据处理管道中确定的每个主要数据转换步骤（事件生成、探测器模拟、背景堆积和数字化等），虚拟数据手册（VDC）目录封装了特定的数据转换知识和必须在数据转换调用之前提供的经验证的参数设置。为了在DC 1生产期间提供本地-远程透明性，VDC数据库服务器以受控的方式为全球数千个事件生成和探测器模拟作业提供了经验证的生产参数和模板化生产配方，从而简化了生产管理解决方案。
英文摘要：
For efficiency of the large production tasks distributed worldwide, it is essential to provide shared production management tools comprised of integratable and interoperable services. To enhance the ATLAS DC1 production toolkit, we introduced and tested a Virtual Data services component. For each major data transformation step identified in the ATLAS data processing pipeline (event generation, detector simulation, background pile-up and digitization, etc) the Virtual Data Cookbook (VDC) catalogue encapsulates the specific data transformation knowledge and the validated parameters settings that must be provided before the data transformation invocation. To provide for local-remote transparency during DC1 production, the VDC database server delivered in a controlled way both the validated production parameters and the templated production recipes for thousands of the event generation and detector simulation jobs around the world, simplifying the production management solutions.
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