| 引用本文: | 邢二保,顾忠杰,李仲民.超级计算机转移机制研究.[J].国防科技大学学报,1993,15(1):37-43 ,50.[点击复制] |
| Xing Erbao,Gu Zhongjie,Li Zhongmin.A Study on Supercomputer Branch Mechanism[J].Journal of National University of Defense Technology,1993,15(1):37-43 ,50[点击复制] |
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| 超级计算机转移机制研究 |
| 邢二保, 顾忠杰, 李仲民 |
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(电子计算机系)
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| 摘要: |
| 延迟转移是R1SC 技术特点之一。根据在类Cray-Ⅰ巨型机上对标量程序的模拟可知，机器运行中约15%～20%的时间花在转移处理上。本文深入分析了 i860RISC 机制 中延迟转移技术，研究了在类Cray-Ⅰ模型机上移植延迟转移技术的实现方法。模拟结果和理论分析表明，对向量化率不高的标量程序，每条转移指令的执行时间每减少一拍可提高系统速度 4～5% 左右。 |
| 关键词: 巨型计算机，转移指令，延迟转移，精减指令集计算机 |
| DOI： |
| 投稿日期：1992-04-18 |
| 基金项目: |
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| A Study on Supercomputer Branch Mechanism |
| Xing Erbao, Gu Zhongjie, Li Zhongmin |
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(Department of Computer Science)
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| Abstract: |
| Branch-delay is one of the RISC (Reduced Instruction Set Computer)technology characters. According to our simulation to scalar programs on Cray-l-Like supercomputer，about 10～20%CPU time is occupied by branch inst. In this paper，the implementation method of branch-delay technology in i860 microprocessor is deeply analyzed. The method of introducing branch-delay technology into Cray-l-Like prototype is studied. Simulation results and theoretical analysis show that reducing one cp execute time for each branch inst will increase system pertormance by 4～5 percent. |
| Keywords: supercomputer,branch Inst,Branch-delay,RISC |
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