标题： 基于云的切伦科夫望远镜阵列观测模拟架构。 优化、设计和结果 显示英文标题

标题： A Cloud-based architecture for the Cherenkov Telescope Array observation simulations. Optimisation, design, and results

摘要： 模拟和分析甚高能（VHE）实验（如切伦科夫望远镜阵列（CTA））的天体物理源的详细观测结果可能是一项艰巨的任务，尤其是在CPU消耗和所需存储方面。 在此背景下，我们提出了一种基于亚马逊网络服务（AWS）的创新云计算架构，旨在减少模拟和分析给定区域所需的时间，通过分配工作负载并利用AWS提供的大量计算能力。 我们详细说明了亚马逊在线平台提供的各种服务如何在我们的架构中联合使用，并报告了使用单台机器和基于云的方法模拟CTA观测测试源所需的执行时间比较。 我们发现，通过使用AWS，我们可以比使用相同成本的一般工作站快两个数量级以上地运行我们的模拟。 我们建议在需要在短时间内模拟、分析和得出观测结果时考虑这种方法。 显示英文摘要

摘要： Simulating and analysing detailed observations of astrophysical sources for very high energy (VHE) experiments, like the Cherenkov Telescope Array (CTA), can be a demanding task especially in terms of CPU consumption and required storage. In this context, we propose an innovative cloud computing architecture based on Amazon Web Services (AWS) aiming to decrease the amount of time required to simulate and analyse a given field by distributing the workload and exploiting the large computational power offered by AWS. We detail how the various services offered by the Amazon online platform are jointly used in our architecture and we report a comparison of the execution times required for simulating observations of a test source with the CTA, by a single machine and the cloud-based approach. We find that, by using AWS, we can run our simulations more than 2 orders of magnitude faster than by using a general purpose workstation for the same cost. We suggest to consider this method when observations need to be simulated, analysed, and concluded within short timescales.