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循环展开
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  loop unrolling
     By using some technologies like intrinsics,loop unrolling and software pipeline to optimize the algorithm,our scheme was implemented on TMS320C6416 with the encoding speed of 36Mbps and the decoding speed of 1.6Mbps.
     利用内联函数、循环展开,软件流水线技术对算法进行了优化,在TMS320C6416芯片上实现了36Mbps的编码速率及1.6Mbps译码速率(5次迭代)。
短句来源
     Loop unrolling optimization for software pipelining
     软件流水中的循环展开优化
短句来源
     Loop unrolling can make software pipelining achieve fractional initiation interval and improve resource utilization.
     在软件流水中应用循环展开可以实现分数值的启动间距 ,提高资源的利用率 ,同时基于展开的优化技术可以降低程序的资源需求和关键路径的长度 .
短句来源
     FORTRAN DO LOOP UNROLLING USING m4 MACRO LANGUGE
     利用m4定语言进行Fortran 77循环展开
短句来源
     To tackle these problems, gcx employs branch result combining, loop unrolling, procedure integration and other techniques vastly.
     为此,gcx使用了诸如合并分支执行结果、循环展开、过程集成等方法来克服这些困难。
短句来源
更多       
  loop unroll
     729 annex A on the TMS320C55x generation DSP,and optimize the algorithm to result highly performance base on the feature provided by the C55x DSP architecture,such as dual-MAC、instruction parallel、loop unroll and C55x special instruction,the speed of the optimized G.
     729A语音编码算法在TMS320C55xDSP上高效实现的方法,并根据C55x系统结构提供的特性,通过使用双乘加运算、指令并行、循环展开、C55x的专用指令等方法对算法作了高质量的优化,优化实现后的G.
短句来源
     Software pipelining and loop unroll are two kinds of important optimized compile technique to develop loop parallelism.
     软件流水和循环展开是开发循环并行性的两种重要编译优化技术。
短句来源
  loop-unrolling
     The thesis analyzed the structure of SMS4 algorithm, and proposed several hardware-implementation methods according to different encryption modes, which are full-loop structure, loop-unrolling structure, pipelined-structure, and loop-unrolling& pipelined mixed structure.
     根据不同的加密模式提出了实现该算法的几种硬件架构:全循环架构、循环展开架构、流水线架构、循环展开和流水线的结合架构。
短句来源
     The sparse direct solver is adopted by the better finite element programs of tower crane. A method to incorporate the loop-unrolling strategy to improve its efficiency,it has shown its advantages both in solution time and memory(hard disk) space requirement through practice.
     目前较好的塔机有限元程序是用稀疏直接求解器,其中引入循环展开(loop-unrolling)技术改进工作性能,实践证明,它对内存或硬盘空间的需求量明显减少,求解速度得到显著提高。
短句来源
  “循环展开”译为未确定词的双语例句
     An implementation of SHA-1 algorithm based on unrolling loops architecture
     一种基于循环展开结构的SHA-1算法实现
短句来源
     Through analyzing the instructions and pipeline feature of TMS320C54X DSP,we promoted four optimization methods for TMS320C54X DSP assembly language programs,which were "Techniques of Partly Expanding Rotation", "The Techniques about Using Parallel Instructions","The Proper Utilization of Increase or Decrease Pointers","Use AR0 as a Rotation Counter",and "Techniques of Partly Expanding Rotation" is a method to avoid redundant NOP instructions in rotation;
     通过研究TMS320C54X DSP汇编指令的特点及其流水线特性提出了四种优化其汇编程序的方法,它们是“部分循环展开法”、“并行指令使用技术”、“合理利用指针增减的思想”、“AR0作为循环次数法”。 其中“部分循环展开法”是消除循环内部多余NOP语句的通用方法;
短句来源
     The paper detailedly introduces two methods of the regiseter renaming in X high-performance microprocessor, respectively implemented through register rotation and register stack, give an example to show how software pipelining supported by register rotation overcomes the disadvantage to code optimization induced by traditional unloop method, and furthermore implements the renaming design of general register, floating point register and predication register.
     本文详细介绍X高性能微处理器中寄存器旋转和寄存器堆栈方式实现的寄存器重命名,举例说明寄存器旋转支持的软件流水技术如何克服传统循环展开方法给代码优化带来的弊端,并进一步给出通用、浮点和谓词寄存器重命名逻辑的具体实现。
短句来源
     So author studies the N P nutrient cycle under inter-croppingcompound system of walnut at age 4 and wheat in order to provide scientific evidence for the N. Pmanagement of inter-cropping compound system. The results as follows:
     为此作者对渭北地区4年生核桃与小麦间作复合系统N、P营养元素的循环展开了研究,目的是为间作复合系统N、P肥的管理提供科学依据。
短句来源
     By using high-speed buffers and do-loop unrolling technique, it reduced memory complexity and improved average time of floating-point calculation.
     采用高速缓存和循环展开技术,降低了存储复杂性,提高了浮点运算的平均时间。
短句来源
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  loop unrolling
It combines application of incomplete structures and partial evaluation together with classical program optimization such as constant-propagation, loop unrolling and dead-code elimination.
      
High-level loop transformations such as fission, fusion, tiling, interchanging and outer loop unrolling (e.g., unroll and jam) are well known to be capable of improving all these aspects of performance.
      
Loop unrolling is a well known loop transformation that has been used in optimizing compilers for over three decades.
      
Then, we apply loop unrolling and data prefetching to specific parts of the code.
      
Again, partial loop unrolling has to be followed by instruction scheduling.
      
更多          
  loop unroll
In the process of doing so the outer loop unroll and jam and the inner loop unroll increase the size of the loop body.
      
  loop-unrolling
Hence, generating high-level code with explicit loop-unrolling does not benefit performance in both cases.
      
To eliminate this dependence, we can do loop-unrolling on S2.
      


This paper first theoretically analyzes the influence of loop-carried dependen-ce on software pipelining, puts forward and proves a sufficient and necessary condition for distinguishing the two kinds of loops-restrictable and unrestrictable. Next, it proves that any unrestrictable loop can be transformed into a semantically equivalent restrictable loop by unrolling K times. K is determined by the number of operation pairs with loop-carried dependence within the original unrestrictable loop. Finally, a pre-processing...

This paper first theoretically analyzes the influence of loop-carried dependen-ce on software pipelining, puts forward and proves a sufficient and necessary condition for distinguishing the two kinds of loops-restrictable and unrestrictable. Next, it proves that any unrestrictable loop can be transformed into a semantically equivalent restrictable loop by unrolling K times. K is determined by the number of operation pairs with loop-carried dependence within the original unrestrictable loop. Finally, a pre-processing algorithm and a new compaction algorithm for loop bodies are presented. The preliminary experimtnts show that with these two algorithms URPR can guarantee time optimal result for any loop in the absence of resource constraints and still keep the good space efficiency and low time complexity.

本文首先在理论上分析了循环体间相关对软件流水的影响.提出了一个由循环本身性质决定的充分必要条件并证明了满足此条件的循环是可限制的,否则是不可限制的;其次我们证明了任意不可限制的循环展开K次后即可转换为可限制循环,K取决于循环本身的性质;最后给出了循环预处理算法和一个新的循环体压缩算法.实验结果表明,这两个算法可使URPR算法对任意循环都能得到最优时间效益并保持了良好的空间效益及低的计算复杂性.

The loop unfolding is one of difficult problems in the procedural language partial evaluation. A partial evaluation technique based on information analysis that solves the problem is presented in this paper.It has implemented a partial evaluator using this technique.

循环展开是过程式语言部分求值中的难题之一.本文提出一种基于信息流分析的部分求值技术,解决了部分求值中循环展开问题.本文利用这一技术,实现了一个过程式语言的部分求值器.

It is very difficult for a general task graph to represent the dependency among different iterations of a nested loop. In order to transform loop carried dependency to loop independent dependency, the concept of loop task graphs is introduced first in this paper , and then the technology of loop unrolling used to generate replicated task graphs is described. Finally, an objective function used to find an optimal unrolling vector on MIMD DM models is given.

一般任务图很难表示多重相关循环语句中不同循环迭代之间的相关关系.本文首先介绍了循环任务图的基本概念,然后说明了如何通过循环展开技术来产生复制任务图,从而把循环传递相关转换为循环独立相关,最后并给出了MIMD-DM模型上寻找最优循环展开向量的目标函数

 
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