SHF: Medium: Collaborative Research: Ultra-Responsive Architectures for Mobile Platforms

SHF：中：协作研究：移动平台的超响应架构

• 批准号: 1161681
• 负责人: Thomas Wenisch
• 金额: $ 24万
• 依托单位: University of Pennsylvania
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-05-01 至 2016-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1161681&HistoricalAwards=false
• 关键词: SHF; Medium; Collaborative; Research; Ultra; SHF; Medium; Collaborative; Research; Ultra

Conventional microprocessors are designed primarily for sustainedperformance; they can operate at near-peak performance essentiallyindefinitely until their energy source is exhausted. In battery andcooling constrained environments such as mobile devices, sustained power(and, consequently, peak performance) must be limited to at most a fewwatts so that the device can dissipate heat using only passiveconvection. However, many interactive mobile applications (such ashandwriting/speech recognition or image-based search) instead call forbursts of intense computation in response to user input, creating theneed for a new ultra-responsive operating regime: rather than limit peakpower assuming sustained operation, systems should instead exploit heatstorage to enable brief computation bursts that greatly exceedsustainable thermal limits without overheating. This projectinvestigates an approach called "computational sprinting", the centralessence of which is to compute at unsustainable rates but only brieflyso that temperatures do not reach unsafe levels.The goal of this project is to address the architectural, thermal,electrical, and software barriers to ultra-responsiveness viacomputational sprinting. In particular, the project explores: (1)architectures and memory systems that sprint via parallelism (activatingtens of reserve functional units/cores) and voltage boosting(overdriving cores for single-thread performance) while facilitatingfast burst onsets; (2) thermal designs that improve thermal responsebehavior to enable longer and more intense sprints; (3) mobile-optimized electrical designs that provide stable supply voltagesdespite current surges of an order-of-magnitude or more; and (4) software mechanisms that explicitly manage limited thermal budgets and anticipate and stage data needed during the sprint. The projectincludes the fabrication of an experimental testbed to approximate thecomputational, thermal and electrical capabilities of a future many-coremobile device and to provide practical experience with sprinting.Project impacts include (1) developing and advancing techniques forimproving the responsiveness of mobile devices and (2) integrating thediscoveries into a new cross-departmental course on computer systemdesign.

常规的微处理器的设计主要是为了持续性能。他们可以在近高峰性能上进行基本上的性能，直到能源耗尽为止。在电池和冷却的受约束环境中，例如移动设备，持续功率（以及峰值性能）必须最多仅限于几次瓦特，以便该设备只能使用PastiveConvection散发热量。但是，许多交互式移动应用程序（例如AshAndWriting/Speaking识别或基于图像的搜索）而不是响应用户输入来调用强烈计算的范围，为新的超响应性操作方案创建当时的eeed：而不是限制峰值，假设持续的操作，系统应该利用高温计算，而无需过度耐磨的热量，那么系统应该利用热量计算，而不是限制了高度限制。 这种项目对一种称为“计算冲刺”的方法进行了评估，其中心度是以不可持续的速度计算，但仅简要介绍，温度不达到不安全的水平。该项目的目的是解决建筑，热，电气和软件障碍，以解决超强反应性的ViaComcomputication ViaComcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcompocormoncomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcompoconcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomcomplints income。特别是，该项目探讨了：（1）通过并行性（储备功能单元/核心的激活量）冲刺的体系结构和内存系统和升压（用于单线程性能的过驱动核心），同时促进Fast Fust burst obs onsets; （2）改善热响应行为的热设计可实现更长，更激烈的冲刺； （3）移动优化的电气设计，可提供稳定的电源电压，尽管电流的电流或更高的电流均高； （4）在冲刺期间明确管理有限的热预算以及预期和阶段数据的软件机制。 The projectincludes the fabrication of an experimental testbed to approximate thecomputational, thermal and electrical capabilities of a future many-coremobile device and to provide practical experience with sprinting.Project impacts include (1) developing and advancing techniques forimproving the responsiveness of mobile devices and (2) integrating thediscoveries into a new cross-departmental course on computer systemdesign.