| 超级计算机转移机制研究 |
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| 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. |
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| 作者姓名： | 邢二保 顾忠杰 李仲民 |
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| 作者单位： | 国防科技大学电子计算机系
(邢二保，顾忠杰)，国防科技大学电子计算机系(李仲民) |
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| 摘 要： | 延迟转移是RISC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,(?)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。
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| 关 键 词： | 巨型计算机 转移指令 延迟转移 精减指令集计算机 |
| 收稿时间： | 1992/4/18 0:00:00 |
A Study on Supercomputer Branch Mechanism |
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| Xing Erbao,Gu Zhongjie and Li Zhongmin.A Study on Supercomputer Branch Mechanism[J].Journal of National University of Defense Technology,1993,15(1):37-43 ,50. |
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| Authors: | Xing Erbao Gu Zhongjie and Li Zhongmin |
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| Institution: | Department of Computer Science |
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| Abstract: | Branch-delay is one of the RISC (Reduced Instruction Set Computer) technology characters. Accord-ing to our simulation to scalar programs on Cray-1-Like supercomputer, about 10~20%CPU time is oc-cupied by branch inst. In this paper, the implementation method of branch-delay technology in i860 mi-croprocessor is deeply analyzed. The method of introducing branch-delay technology into Cray-1-Likeprototype is studied. Simulation results and theoretical analysis show that reducing one cp execute timefor each branch inst will increase system pertormance by 4~5 percent. |
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| Keywords: | supercomputer branch lnst Branch-delay RISC |
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