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FogROS2 使用 ROS 2 的云和雾机器人的自适应和可扩展平台

FogROS 2: An Adaptive and Extensible Platform for Cloud and Fog Robotics Using ROS 2 Abstract— Mobility, power, and price points often dictate that robots do not have sufficient computing power on board to run modern robot algorithms at desired rates. Cloud computing providers such as AWS, GCP, and Azure offer immense computing power on demand, but tapping into that power from a robot is non-trivial. In this paper, we present FogROS2, an easy-to-use, open-source platform to facilitate cloud and fog robotics that is compatible with the emerging Robot Operating System 2 (ROS 2) standard. FogROS 2 provisions a cloud computer, deploys and launches ROS 2 nodes to the cloud computer, sets up secure networking between the robot and cloud, and starts the application running. FogROS 2 is completely redesigned and distinct from its predecessor to support ROS 2 applications, transparent video compression and communication, improved performance and security, support for multiple cloud-computing providers, and remote monitoring and visualization. We demonstrate in example applications that the performance gained by using cloud computers can overcome the network latency to significantly speed up robot performance. In examples, FogROS 2 reduces SLAM latency by 50%, reduces grasp planning time from 14s to 1.2s, and speeds up motion planning 28x. When compared to alternatives, FogROS 2 reduces network utilization by up to 3.8x. FogROS2, source, examples, and documentation is available at github.com/BerkeleyAutomation/FogROS2.

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美国为何封杀中国超算!一文读懂超级计算机的应用、架构和软件知识

2019年5月,美国商务部将华为列入了出口管制的“实体清单”,华为被推向了这波中美对抗的风口浪尖。紧随其后,6月,特朗普政府又对其他几家中国机构实行了限制出口政策,包括中科曙光、江南计算技术研究所、成都海光等。其中,中科曙光和江南计算技术研究所均为中国超级计算机研发机构,中科曙光研发了“曙光”系列,江南计算技术研究所研发了“神威”系列。另外一个国产超算巨头“天河”相关单位早在2015年就被纳入了实体清单。至此,国产超算三巨头“天河”、“曙光”和“神威”均已被特朗普政府封杀。继“华为禁令”之后,“超算禁令”再次暴露美国欲限制中国发展的野心。那何为“超算”?本文将简述超级计算机的背景知识与发展现状。

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SkyPilot:一键在任意云上运行 LLMs

在云计算日益普及的今天,如何有效、经济且无缝地在各种云平台上运行大语言模型(LLMs)、AI 和批处理作业成为了迫切的需求。SkyPilot 项目应运而生,旨在解决这一核心问题。它不仅抽象并简化了云基础设施操作,为用户提供了在任何云平台上轻松部署和扩展作业的能力,还通过自动获取多个云平台 GPU 的实时价格并进行实时比价,帮助用户选择最优的云平台来运行自己的 Job。这样做极大地降低了成本,提供了高度的 GPU 可用性,让云基础设施管理变得轻而易举。这样做极大的满足了市场对高效、低成本云资源利用的需求。通过 SkyPilot,企业和开发者能够最大化地利用 GPU,进一步推动了人工智能和大数据处理技术的发展,为云计算市场带来了新的可能。

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