优化程序

The paper summerizes several general pratical new techniques, such as the analyzers of program profiles, maximum potential parallelism, array privatizability, loop parallelism; the visualizers of the statement data dependence graph, procedural callgraph, loop iteration space graph and interactive tools of array privatization and unimodular transformation; the automatic techniques of array privatization combined data dependence and coverage, the computation of parallelizing unimodular transforming matrix for mult-nested loops, enhanced unimodular transformation with array reduction recognition, non-loop level parallelism revealing technique, dynamic dataflow analysis and optimization of cross-loop local cache reuses, etc.

本文从而概括了若干具有一般性的实用新技术，如：程序计算量分析、最大潜在并行性分析、数组私有化分析、循环并行性分析等动态程序分析技术；语句数据相关图、过程调用图、循环迭代空间相关图、交互数组私有化、交互幺模变换等可视化语义交互分析变换技术等等；总结了若干自动并行化新技术，如：结合相关和覆盖的数组私有化方法、对多层嵌套循环计算幺模并行化变换矩阵的循环幺模变换方法、结合数组规约识别增强幺模变换的技术、发掘非循环级并行性的技术、动态数据流分析技术、优化利用循环间Cache数据局部性的技术等等。

This paper focuses on the relationship between the processor and program, and applied the program optimization techniques to practical problem.

本文从程序和处理器的关系着眼，对程序优化技术进行了深入研究。

All that we have been giving programmers is an optimizing compiler, which mysteriously does something to the programs it translates but which never explains what it does.

我们所给予程序员的只有优化过的编译器，它只会神秘地将程序翻译成机器指令，却从来不解释为什么。

At some point in the life of your Access database application, consider upsizing to SQL Server to optimize database and application performance, scalability, availability , security, reliability, and recoverability.

在 Access 数据库应用程序的生命周期的某个时刻，可以考虑升迁到 SQL Server，以优化数据库和应用程序的性能、可伸缩性、可用性、安全性、可靠性和可恢复性。

The purpose of this study is to optimize the freeze drying condition of whitebait,including the mode of pre-freezing and heating procedure of plate.

研究并优化了银鱼冷冻干燥时的工艺条件，包括预冻方式、加热板程序对冷冻干燥过程的影响，得出银鱼冻干工艺条件为：采用中速冻结的方式将银鱼预冻，在10 Pa左右的真空度、冷凝器温度为-45℃的条件下，采用的加热板加热程序分别为0℃保持3 h，10℃保持0。

In this research, Delphi language is adopted to work out calculation procedure of coal-pulverizing system, use this procedure to perform checking calculation, and act as the theoretic basis of operating adjustment. The operation characteristics and controllable parameters are completely studied to reduce the cost. The double-stage separating technique is adopted to improve separation efficiency. The pulverized coal exhauster is reformed based on the outcome of resistance calculation to save power consumption of pulverized system. The wearing problem of steel balls is studied, has set up the stable state mathematics model of steel ball wear to certain load ball system and addition ball system.

本课题采用Delphi语言编制了制粉系统计算程序，用此程序对该制粉系统进行了校核计算，作为制粉系统优化调整的理论根据，从中储式制粉系统的运行特性、可控参数方面进行了全方位的研究，采用内筒中增设螺旋隔离分离元件的双级分离式细粉分离技术，提高细粉分离效率，根据制粉系统阻力计算结果对排粉机进行改造，减少制粉电耗。

The numerical results show that the structural strength after fuselage main frame was optimized is fit, all so the flexural rigidity of wing juncture. So this program can be used to design the main strength frame of large-scale leptodermous fuselage in predesign.

根据优化理论编制了SAAOP(Structure Analyzing and Optimizing Program)程序，计算结果表明该程序可应用于大型薄壁机身主要承力框的初步设计中。

When not if you face the temptation to optimize prematurely for performance and thereby pessimize clarity, recall Item 8's point: It is far, far easier to make a correct program fast than it is to make a fast program correct.

当你无法抵挡住诱惑，打算对不成熟的性能进行优化的时候，并因此感到无助的时候，请看看本书的Item 8的观点：让一个正确的程序变快要比让一个快速的程序变的正确容易的多得多得多

Thermal-hydraulics design and analysis have been investigated by RELAP 5 code, and pipe optimization, equipments layout and stress analyses have been finished by CAESAR code.

介绍了拟建的高温高压氦气实验回路的主要目标、特征以及回路中各设备的性能、参数，应用RELAP5程序完成了回路的热工设计分析，CAESAR程序优化了管路和设备的布置及应力分析，结果表明设计具备工程可行性。

When a program is modified a little or is optimized, incremental analysis can maintain the data flow information, which can avoid recomputing the data flow information of the whole procedure because of a little change.

引 言在编译领域中，数据流分析问题是一大类问题，包括到达定值，活跃变量，可用表达式常数传播，公共子表达式删除，复写传播等诸多程序分析和程序优化问题。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。