基于间隔译码的处理器瞬时故障检测

同时冗余线程（SRT）重复的取指过程加剧了I-Cache和取指部件的负担，冗余线程间的取指冲突还会严重影响处理器的整体性能。在深入分析SRT故障检测机理和性能瓶颈的基础上，提出间隔译码的同时冗余线程（SD-SRT），特点如下：用统一取指队列和间隔译码技术取代间隔取指技术，在保持容错能力的前提下明确消除了冗余的取指过程，有效缓解了取指部件和I-Cache的压力，进而提高了整体性能；用统一的寄存器分配和验证机制，取代复杂的RC-Buf结构。实验表明，SD-SST比SRT性能提高20％以上，取指次数降低43％。此外，SD-SRT还显著降低了硬件设计的复杂度。     

高效砂轮的在线检测

硬质氮化硼磨料在很多加工场合可经济地代替常用的金刚砂，碳化硅等磨料，在加工过程中可显著提高生产率。但如何高效获得周转和平面理想的磨削结果，本文叙述的测量砂轮径跳的方法可达到其目的。     

国产超薄铝蜂窝芯材在太阳翼基板的应用

针对太阳翼基板国产高性能低密度超薄铝蜂窝的自主可控需求,开展分析和试验,验证国产超薄铝蜂窝芯材应用于太阳翼基板的技术可行性。首先建立有限元模型进行准静态载荷分析,基板蜂窝芯子最大横向剪切应力为0.345 MPa,小于剪切强度0.36 MPa,满足强度裕度要求。其次,针对目前超薄蜂窝研制批次稳定性较差、剪切模量波动性较大的问题,对蜂窝剪切模量波动对基板力学性能的影响进行分析,结果表明,基板应力应变分布水平对剪切模量变化不敏感,蜂窝剪切模量降低50%后,基板蒙皮碳纤维最大应变减小3%,蜂窝芯子最大横向剪切应力减小9%,基板最大位移增加7%,可为蜂窝评估提供数据支撑。最后,开展基板缩比件和全尺寸基板的力、热试验,试验后基板未发生损伤。分析和试验结果表明：国产超薄铝蜂窝芯材性能满足要求,可在太阳翼基板上应用。     

Data processing center of RadioAstron space VLBI project

In this paper, questions on development, implementation, and operation of RadioAstron project Data Processing Center (DPC) are reviewed. The main components of the dedicated DPC are the computer complex with 1 TFlops/s performance, storage with memory capacity of approximately 10 PB, the network infrastructure, and the corresponding communication channels. Performance enhancement methods and resolution of information storage, archiving, and process problems of space VLBI high-speed digital data flows are analyzed. It is shown that successful operation of DPC is mainly provided by optimal organization of computer system structure, storage, and networking transmission. Some of the important key features of RadioAstron project DPC and its comparative differences from the standard VLBI procedures are considered.