Collaborative Research: Elements: ProDM: Developing A Unified Progressive Data Management Library for Exascale Computational Science

有效管理极端规模模拟和仪器产生的科学数据对于推进科学发现至关重要。由于数据的规模和科学分析的不同要求，越来越需要以渐进的方式管理数据，使得用户可以流式传输尽可能多的数据，以便在减少数据移动和计算的情况下执行数据分析。然而，几乎没有努力创建强大且可扩展的网络基础设施服务，这些服务将最近的渐进方法中的算法创新与科学数据分析联系起来，使科学家无法获得这些功能。该项目旨在制定一个可持续的框架ProDM，支持科学数据的渐进管理，以促进其在科学应用中的使用。该项目的成功将通过提供管理和分析数据的新方法来实现新的科学研究和新的发现。此外，该项目的成果将作为公共软件提供，以加强研究网络基础设施，促进教育和教学，并扩大对计算的参与。ProDM的核心是统一可行的渐进式表示和针对现场和事后分析例程的定制开发。具体而言，它涉及三项关键活动。首先，将构建一个数据引擎，以统一最先进的渐进式表示，并为加速器提供便携式硬件支持，以及与其他数据管理和分析库的互操作软件接口。其次，将开发一个原位引擎，以促进使用渐进表示原位数据分析，其中包括重新设计原位语义和调整运行时动态。第三，将开发一个事后引擎，以有效地访问渐进数据，并提高事后数据分析的数据检索性能。ProDM将被部署在校园范围内的计算基础设施和领导系统上，用于与气候、聚变、分子动力学等现实科学应用的集成和评估。该奖项反映了NSF的法定使命，并被认为值得通过使用基金会的知识价值和更广泛的影响审查标准进行评估来支持。

Effective management of scientific data produced by extreme-scale simulations and instruments is crucial for advancing scientific discoveries. Due to the scale of data and the diverse requirements of scientific analytics, there is a growing need to manage data in a progressive manner, such that users can stream as much data as they need to carry out their data analytics with reduced data movement and computation. However, little effort has been put into creating robust and scalable cyberinfrastructure services that link the recent algorithmic innovations in progressive methods with scientific data analytics, leaving these capabilities inaccessible to scientists. This project aims to develop a sustainable framework ProDM that supports the progressive management of scientific data to facilitate its use in scientific applications. The success of this project will enable new scientific research and novel findings by providing a new way to manage and analyze data. Furthermore, outcomes of this project will be delivered as publicly available software to enhance research cyberinfrastructure, promote education and teaching, and broaden participation in computing. ProDM is centered upon the unification of viable progressive representations and tailored development for in-situ and post-hoc analytic routines. In particular, it involves three key activities. First, a data engine will be built to unify state-of-the-art progressive representations, and provide portable hardware support for accelerators as well as interoperative software interfaces to other data management and analytic libraries. Second, an in-situ engine will be developed to facilitate the use of progressive representations for in-situ data analytics, which include a redesign of in-situ semantics and adjustment of runtime dynamics. Third, a post-hoc engine will be developed to efficiently access progressive data and improve the performance of data retrieval for post-hoc data analytics. ProDM will be deployed on campus-wide computing infrastructures and leadership systems for integration and evaluation with real-world scientific applications from climate, fusion, molecular dynamics, and beyond.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.