摘要：多端口寄存器堆有助于挖掘指令级和线程级并行性,但同时带来面积、能耗和访问时间的压力.文章面向超标量和SMT处理器,给出了一种方法,即通过增加一个小的活跃值堆(Active Value File,AVF)选择性地保存处于活跃周期(从产生到最后一次使用之间)的物理寄存器值.AVF结构可分担主寄存器堆的访问压力并降低端口数目,实现简单且具有写过滤的特点.在获得较大幅度能耗降低的同时不影响时钟频率且IPC损失较小.

摘要：近年来,港口工程的建设步伐越来越快,促进了交通运输行业的发展。在港口工程的建设过程中,软土地基是一个不容忽视的问题。受到水的作用,港口建设区域的地基土被软化,形成大面积的软土地基,对港口工程建设是一个很大的挑战。论文对港口工程建设中软土地基的处理技术进行研究,为今后的相关工程提供参考与建议。

摘要：The instruction fetch unit （IFU） usually dissipates a considerable portion of total chip power. In traditional IFU architectures, as soon as the fetch address is generated, it needs to be sent to the instruction cache and TLB arrays for instruction fetch. Since limited work can be done by the power-saving logic after the fetch address generation and before the instruction fetch, previous power-saving approaches usually suffer from the unnecessary restrictions from traditional IFU architectures. In this paper, we present CASA, a new power-aware IFU architecture, which effectively reduces the unnecessary restrictions on the power-saving approaches and provides sufficient time and information for the power-saving logic of both instruction cache and TLB. By analyzing, recording, and utilizing the key information of the dynamic instruction flow early in the front-end pipeline, CASA brings the opportunity to maximize the power efficiency and minimize the performance overhead. Compared to the baseline configuration, the leakage and dynamic power of instruction cache is reduced by 89.7% and 64.1% respectively, and the dynamic power of instruction TLB is reduced by 90.2%. Meanwhile the performance degradation in the worst case is only 0.63%. Compared to previous state-of-the-art power-saving approaches, the CASA-based approach saves IFU power more effectively, incurs less performance overhead and achieves better scalability. It is promising that CASA can stimulate further work on architectural solutions to power-efficient IFU designs.

摘要：为了推动高桩承台基础在海上风电工程的应用,克服传统打桩船施工移船驻位次数多,受风浪影响大的不足,文中提出了海上高桩承台基础斜桩吊打新工艺。研究了振动锤沉桩设备,设计了定位桩与限位导架,分析了施工关键技术,并在天津大神堂浅海活牡蛎礁独特生态系统保护与修复项目——海洋监视监控平台建设项目中应用成功。工程实践表明,该工艺具有施工速度快,沉桩质量高,施工费用低的特点。